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1. Work Centre M20 Family 6 5 TEST END Table 2 Sensor Description Table 2 Sensor Description Displayed name Sensor name Parts list OB PBA sub bin full sensor PL 10 10 Item 20 Displayed name Sensor name Parts list Output bin sensor Actuator PL 10 10 Item 21 CBE harness switch micro FE PBA sub feed and P EMP sensor PL 8 25 Item 12 Right hand cover interlock Tray 1 empty sensor Actuator PL 8 25 Item 7 FD PBA sub feed and P EMP sensor PL 8 25 Item 12 ME PBA sub MP sensor PL 8 20 Item 24 Feed sensor Actuator PL 8 25 Item 25 Paper transport sensor Actuator PL 8 20 Item 12 EX PBA sub exit sensor PL 4 15 Item 22 Exit sensor March 2004 General Procedures and Information GP 1 Ready To Copy k k k k x 100 001 Engine Test ENGINE TEST Diagonostic NO gt 0 6 ALL MOTOR TEST FCF SOLENOID TEST M F SOLENOID TEST PTL TEST FAN TEST FUSER CONTROL TEST FUSER TEMP TEST 2 0FF lt gt 2 0FF lt gt 1 0 2 0FF lt gt 1 0 2 lt gt 1 0 2 lt gt 1 0 2 lt gt _1 2 LSU MOTOR TEST LASER DIODE TEST LSU READY TEST LSU HSYNC TEST KON ZORE lt gt 2 OFF lt gt _1 CHECK 2 4 1 CHECK 2 4 SENSOR TEST 1 CHECK 2 4 SCF SOLENOID TEST SCF EMP INST TEST lt gt 2 OFF 4 CHECK 2NEXT 4
2. GP 1 Engine Test Mode Entry 4 0000 6 3 GP 2 User Mode 6 7 GP Service Mode Enlty 4 cnr rte ete nee Denia nin dede 6 9 Fax DEE 6 11 GP 5 Memory Clear es 641 GP 6 Maintenance acce ete bere net d ANERE 6 12 GRRE PONS E i cer d 6 14 GP 8 Firmware Upgrade 6 15 GP 9 Identify Sale Date M20i Only ss 6 16 GP 10 General Disassembly Precautions a 6 16 GP 11 Machine 6 17 GP 12 Tu RU 6 20 GP 13 Circuit Operation 6 22 GP Ee Ee EE 6 24 GP 15 Host Interface edente eret 6 26 GP 16 Engine Controller tree treten innt trei tente arret 6 27 GP 17 PBA OPE Operation rrr tti PUPA E etre 6 32 GP 18 PBA LIU 6 83 GP 19 SMPS Unit 6 34 GP 20 Acronyms and Parts Description List 6 35 GP 21 DADF Document Feeding Specifications esses 6 40 GP 22 Paper and Media Specifications essen 6 40 GP 23 Service LOG ot ore ingre dete n E ndr Re a 6 41 March 2004 General Procedures and Information Work Centre M20 Family 6 1 General Procedures and Information March 2004 6 2 Work Centre M20 Family GP 1 Engine Test Mode Entry Purpose
3. IPR P pinch scan IPR P Iron press PL 5 14 Item 6 P EMP SEN Paper empty sensor Unit LSU LSU Laser scanning unit PL 6 10 Item 1 ELA OPC unit set OPC Organic photo conductive PL 9 10 Item 1 CBF harness LSU LSU Laser scanning unit PL 6 10 Item 2 PMO locker DEVE DEVE Developer PL 9 10 Item 3 MEC cassette assembly letter MEC Mechanical combined unit PL 7 10 Item 1 ICT shaft exit lower ID ID Idler PL 10 10 Item 12 Spring CS RE CS Compress RE Rear PL 7 10 Item 13 Spring exit roll FD FD Face down PL 10 10 Item 14 General Procedures and Information GP 20 March 2004 6 36 Work Centre M20 Family Table 1 Acronyms Acronym Description PL Ref ELA HOU scanner assembly ELA Electrical assembly HOU Housing PL 14 10 Item 1 OPE Assembly Refer to Table 3 Table 3 OPE assembly A S material dummy upper A S After service PL 14 10 Item 3 Part name Commonly known as EE Hel assembly ELA HOU OPE assembly User interface assembly PL 2 10 Item 1 MCT glass DADF MCT Machinery cutting PL 14 10 Item 4 PBA SUB E mail E mail PWB PL 2 10 Item 12 PPR registration edge F PPR Processing press PL 14 10 Item 8 PBA SUB OPE User interface PWB PL 2 11 Item 10 IPR holder glass IPR Iron press PL 14 10 Item 10 MCT glass scanner legal MCT Machinery cutting PL 14 10 Item 12
4. March 2004 Repairs and Adjustments Work Centre M20 Family 4 39 ADJ 1 1 Repairs and Adjustments March 2004 ADJ 1 1 4 40 Work Centre M20 Family 5 Parts List PL 1 Standby Power PL 1 10 SMPS PBA Main 5 3 PL 2 User Interface PL 2 10 OPE Assembly 1 of 2 n ren ens 5 4 RE STORE Assembly 2 012 nete enr tere epo 5 5 PL 4 Main Frame Covers and Drives PL 4 10 Base Frame Assembly sse 5 6 PL 4 15 Main Frame Assembly 5 7 PE 4 20 Drives Assetribly coiere nere rte e rere creen tk ca eoe ee vex Meu da en xe uan 5 8 4325 50 oe es oe ese ed deed red ed 5 9 PL 5 Document Transport PL 5 10 DADF Assembly 1 of 5 5 10 PL 5 11 DADF Assembly 2 of 5 5 11 PL 5 12 DADF Assembly 3 of 5 5 12 PL 5 13 DADF Assembly 4 of 5 5 13 PL 5 14 DADF Assembly 5 of 5 5 14 PL 6 Imaging PI 6 10 5 SU ese E ee 5 15 PL 7 Paper Supply PL 7 10 Tray 1 Cassette 5 16 PL 7 15 Tray 2 Cassette Assembly 1 2 4 5 17 PL 7 16 Tray 2 Cassette Assembly 2 2 5 18 PL 8 Paper Transport PL 8 10 Side Cover Assembly 1 5 19 PL 8 11 Side Cover Assembly 2 5 20 PL 8 15 Feeder Assembly 5 21 PL 8 20 MP Assembly e n eren i o D en re nnne re inne
5. IQ3 Blurred Image From the Scanner RAP IQ4 Vertical Black Lines or Bands RAP Service Call Procedures SCP 3 SCP 4 14 March 2004 Work Centre M20 Family IQ5 Vertical White Lines RAP IQ6 Light Image RAP IQ7 Dark Image RAP IQ8 Background RAP IQ9 Ghost Images RAP IQ10 Stains on Back of Paper RAP IQ11 Poor Fusing RAP 1Q12 Partial Blank Image Not Periodic RAP IQ13 Partial Blank Image Periodic RAP IQ14 Different Image Density Left and Right RAP 1Q15 Horizontal Bands RAP 1Q16 Periodic Printing Defects Check RAP For image quality specifications refer to the following IQS 1 Solid Area Density IQS 2 Skew IQS 3 Registration Fax Faults If the machine has a fax fault go to the 20 3 Fax Faults Without a Message RAP Audible noise If the machine is making an unusual noise go to the OF4 Audible Noise RAP Machine Settings To make any adjustments to the machine refer to ADJ 1 1 Machine Settings Additional Information If necessary refer to the following general procedures and information GP 1 Engine Test Mode Entry GP 2 User Mode Entry GP 3 Service Mode Entry GP 4 Fax Setup GP 5 Memory Clear GP 6 Maintenance GP 7 Reports GP 8 Firmware Upgrade GP 9 Identify Sale Date M20i Only GP 10 General Disassembly Precautions GP 11 Machine Specifications e GP 12 Circuit Description GP 13 Circuit Operation
6. Mailbox Setup Create Delete Fax Email Forward Fax Email Reports GP 7 Protocol Fax Phonebook Fax TX Fax RX System Data Scheduled Jobs Fax TX Con firm Email TX Report Junk Fax List Billing Counters Connect Page User Auth List Print All Reports includes Help List Table 2 C20 service mode settings Function Item Option Machine Setup Tray 1 Size Letter A4 Legal Folio Tray 2 Size Letter A4 Legal Folio Bypass Size Letter A4 Legal Folio A5 Statement Power Save On Off Machine Timeout 15 30 60 180 Off Alarm Sound On Off Key Sound On Off Language English French German Italian Spanish Portuguese Dutch Danish Finnish Nor wegian Swedish Russian Localisation Inch MM Network Setup Reset NIC Configure Network Netware Use Factory Defaults Email Setup SMTP Server Setup Auth User Setup Auto Send to Self Guest User Access Default From Default Subject LDAP Server Setup Change Passcode Clear Memory System Data Fax TX History Fax RX His tory Fax Phone Book Email Address Book Email TX History Clear All Memory GP 5 Maintenance GP 6 Serial Number Clean Drum New Drum Billing Counters Notify Toner Low Switch Test DRAM Test ROM Test Pattern Test Shading Test Engine Test Flash Upgrade Reset Passcode Rep
7. PBA SUB D SUB PBA SUB D SUB Sub printed cir cuit board assembly for the D SUB type electrical connector PL 14 11 Item 5 Frames Drives and Covers Refer to Table 4 Table 4 Frames drives and covers ICT insert shaft ICT Iron cutting PL 14 11 Item 8 IPR BRK scan BD IPR Iron press BRK Bracket BD Board PL 14 11 Item 11 Cover M CCD cable M Mold CCD Charge coupled device PL 14 11 Item 15 CBF signal CCD FFC CCD Charge coupled device FFC Flexible flat cable PL 14 11 Item 17 CBF harness OPE OPE Operation panel control panel PL 14 11 Item 18 Cover scan lower UMAX UMAX Suppliers name for CCD module PL 14 11 Item 22 SMPS and PBA Main Refer to Table 2 Table 2 SMPS and PBA main Part name Commonly known as PL Ref Fan DC cardinal ROS cooling fan PL 4 10 Item 17 CBF harness SCF IOT Tray 2 power communications harness PL 4 10 Item 22 Solenoid pickup Paper feed solenoid PL 4 10 Item 25 Holder terminal Developer module CRUM connector PL 4 15 Item 7 PBA SUB terminal Developer module CRUM PWB PL 4 15 Item 6 CBF harness blade supply Developer module power supply har PL 4 15 Item 8 DEV ness CBF harness main THV Wire Transfer roller power supply lead PL 4 15 Item 9 CBF harness Main MHV wire Charge roller power supply lead PL
8. NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names 1 If copying select a different copying mode 2 If this fault occurs during Scan to Email refer to Wiring Diagram 2 and Wiring Diagram 4 Check the following QWERTY connector If necessary install a new PBA SUB OPE joint PL 2 11 Item 9 In line memory module If necessary install a new SDRAM DIMM PL 1 10 Item 12 OF2 IP Conflict RAP The machine has detected a problem connected with IP addresses Procedure WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury This message is for information only Status Indicator RAPs March 2004 OF1 OF2 2 16 Work Centre M20 Family OF3 Use Auxiliary Access RAP The machine has detected that there is no credit in the foreign device Procedure WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names Refer to Wiring Diagram 2 Perform the following 1 If there is credit in the for
9. OPC FUSE CHECK TONER STATE TONER LOW CHECK PAGE COUNTER INC AIR TEMP CHECK lt gt 1 2 4 1 CHECK 2 lt gt 1 2 lt gt 1 CHECK 2 4 4 CHECK 2 4 SCF MOTOR TEST 2 OFF OPC FUSE STATE 1 CHECK 2 MHV SUPPLY 1350V 2 OFF MHV ADC READ DEV SUPPLY 450V THV SUPPLY NEG VOLT THV SUPPLY 1301V THV ADC READ lt gt 1 2 4 gt VON ZOFF lt gt 1 0 2 OFF lt gt 2 4 CHECK 2 4 TEST END EXIT STOP KEY TEST START NEXT RIGHT KEY AP 1 0137 A Figure 1 LCD test sequence General Procedures and Information March 2004 GP 1 6 6 Work Centre M20 Family GP 2 User Mode Entry Table 1 M20i user mode settings Purpose Function Item Option To adjust the user settings Table 1 and Table 2 show the functions that can be set by the user Toner Save On Off Discard Size 0 30 MM Procedure Te Machine Status Fax Setup Lighten Darken 1 2 Use the up and down keys to scroll through the functions 3 Press Enter to select the required function Resolution Standard Fine 4 Use the left and right keys to scroll through the items e E 5 Press Enter to select the required item E EE 6 Use the left and right keys to scroll through the opti
10. 15 PMO Frame MP P O PL 8 20 Item 1 16 019N00613 Holder Pad MP 17 130301206 Holder Sensor MP 18 PMO Housing Pickup MP P O PL 8 20 Item 27 19 PMO Plate Knockup MP P O PL 8 20 Item 1 20 013N00516 Idle Pickup MP 21 130N01338 RPR Rubber Pickup MP 22 019 00612 RPR RCT Pad Pickup MP 23 019 00796 RPR Pad MP Plus 24 130N01203 SUB MP SEN 25 Screw Taptite REF PL 31 10 Item 6 26 Screw Taptite REF PL 31 10 Item 6 27 022N01483 A S Material Pickup MP 27 18 21 NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more commonly recognised part names AP 8 0010 A Parts List March 2004 PL 8 20 5 22 Work Centre M20 Family PL 8 25 Pickup Assembly Item Part Description 1 002N02276 ELA HOU Pickup Assembly REP 8 6 2 IPR GND Feed P O PL 8 25 Item 1 3 IPR GND Input P O PL 8 25 Item 1 4 IPR Guide Input P O PL 8 25 Item 1 5 130N01207 SUB Toner TX 6 140N05940 Sub PTL 7 PMO Actuator Feed Sensor P O PL 8 25 Item 1 8 PMO Guide Paper P O PL 8 25 Item 1 9 PMO Holder Sensor Feed P O PL 8 25 Item 1 10 PMO Lens Toner Sensor P O PL 8 25 Item 1 11 PMO PTL Path P O PL 8 25 Item 1 12 130N01204 SUB Feed amp P EMP SEN 13 PMO Bushing P U MP P O PL 8 25 Item 1 14 Housing Pickup Large P O PL 8 25 Item 1 15 Housing Pickup Sma
11. March 2004 5 28 Work Centre M20 Family Part Number Index Table 1 Part Number Index Work Centre M20 Family 5 29 Part Number Part List Table 1 Part Number Index 009N01466 PL 710 Part Number Part List 009N01467 PL 4 10 001N00384 PL 4 25 011N00463 PL 4 15 001N00451 PL 4 25 011N00464 PL 4 25 002 02009 PL 4 25 011 00465 PL 4 25 002N02017 PL 4 25 011N00473 PL 14 11 002N02107 PL 4 25 013N00514 PL 10 10 002N02161 PL 4 25 013N00515 PL 8 20 002N02166 PL 14 11 013N00516 PL 8 20 002N02273 PL 14 10 015N00440 PL 4 10 002N02274 PL 14 10 015N00441 PL 4 10 002N02275 PL 5 10 015N00486 PL 7 16 002N02276 PL 8 25 017N00212 PL 4 10 002N02277 PL 9 10 018 00193 PL 2 11 002N02278 PL 9 10 018N00194 PL 2 11 002N02279 PL 4 15 019N00612 PL 8 20 002N02280 PL 4 25 019N00613 PL 8 20 002N02281 PL 2 10 019N00795 PL 5 13 002N02282 PL 2 11 019N00796 PL 8 20 002N02283 PL 2 10 020N00768 PL 10 10 002N02284 PL 14 10 019N00797 PL 14 10 002N02285 PL 5 14 022N01470 PL 8 15 002N02286 PL 5 10 022N01474 PL 10 10 002N02287 PL 5 10 022N01475 PL 8 10 002N02288 PL 5 10 022N01479 PL 8 20 002 02289 4 20 022 01483 8 20 002 02290 PL 14 11 022N01486 PL 4 10 002N02291 PL 5 10 022 01511 PL 5 14 003N00939 PL 5 14 022 01600 PL 8 25 006 01184 PL 7 16 PL 7 15 006 01241 PL 5 14 022N02056 PL 8 15 007 01114 PL 8 10
12. information to be provided at the time of reporting is contained in Appendix A Health and Safety Incident Report involving a Xerox product 3 initial notification may be made by any of the following methods For incidents in North America and Developing Markets West Brazil Mexico Latin American North and Latin American South Phone Xerox EH amp S at 1 800 828 6571 Electronic mail Xerox EH amp S at Doris Bush usa xerox com Fax Xerox EH amp S at 1 585 422 6449 intelnet 8 222 6449 For incidents in Europe and Developing Markets East Middle East Africa India China and Hong Kong Xerox EH amp S at 44 0 1707 353434 Electronic mail Xerox EH amp S at Elaine Grange GBR xerox com Fax Xerox EH amp S at 44 0 1707 353914 intelnet 8 668 3914 Initial notification made by phone must be followed within 24 hours by a completed inci dent report and sent to the indicated electronic mail address or fax number NOTE If sending a fax please also send the original via internal mail Responsibilities for resolution 1 Business Groups Product Design Teams responsible for the product involved in the inci dent shall a Manage field bulletins customer correspondence product recalls safety retrofits b Fund all field retrofits 2 Field Service Operations shall a Preserve the Xerox product involved and the scene of the incident inclusive of any associated equipm
13. 21 22 Part 600N01736 007 01115 022 01474 020 00768 023 01051 007 01261 013 00514 115 00354 Description MEC Exit Assembly REP 10 2 PMO Guide Exit Upper P O PL 10 10 Item 1 PMO Guide Exit Lower P O PL 10 10 Item 1 PMO Guide Jam Remove P O PL 10 10 Item 1 MEC Roller Exit Drive PMO Roller Decurl PMO Pulley Duplex Belt Timing Gear Gear Duplex PMO Bearing Large DP IPR Ground Exit P O PL 10 10 Item 1 ICT Shaft Exit Lower ID P O PL 10 10 Item 1 PMO Roller Exit P O PL 10 10 Item 1 Spring Exit Roll FD P O PL 10 10 Item 1 PMO Holder Exit Roll P O PL 10 10 Item 1 PMO Roller FD F P O PL 10 10 Item 1 PMO Roller FD R P O PL 10 10 Item 1 Spring Exit Lower Idle P O PL 10 10 Item 1 MEC Brush Antistatic PBA SUB Bin Full Sensor P O PL 10 10 Item 1 Actuator SUB Bin Full Sensor P O PL 10 10 Item 1 E Clip REF PL 31 10 Item 6 NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more commonly recognised part names AP 8 0008 A March 2004 Parts List Work Centre M20 Family 5 25 PL 10 10 PL 14 10 ELA HOU Scanner Assembly 1 of 2 Item Part 1 002N02274 002N02273 2 002N02284 3 019N00797 4 5 6 7 8 9 10 11 12 Description ELA HOU Scanner Assembly C20 M20 REP 14 1 ELA HOU Scanner Assembly M20i REP 14 1 ELA HOU
14. 6 9 General Procedures and Information GP 3 Table 1 M20i service mode settings Table 2 C20 service mode settings Function Item Option Function Item Option Network Setup Reset NIC Configure Network Netware Use Factory Defaults Email Setup SMTP Server Setup Auth User Setup Auto Send to Self Guest User Access Default From Default Subject LDAP Server Setup Change Passcode Clear Memory System Data Fax TX History Fax RX His tory Fax Phone Book Email Address Book Email TX History Clear All Memory GP 5 Maintenance GP 6 Serial Number Clean Drum New Drum Billing Counters Notify Toner Low Send Level Dial Mode Switch Test Modem Test DRAM Test ROM Test Pattern Test Shading Test Error Rate Modem Speed Engine Test Silence Time Flash Upgrade Reset Passcode Select Country UK Greece Turkey Ukraine Slovenia Russia Yugoslavia Australia HongKong NewZealand SouthAfrica Israel Korea K Xerox China India Asia STD Malaysia Singapore USA Canada Brazil Chile Columbia Mexico Argentina Peru Ger many France Austria Switzerland Italy Spain Portugal Norway Finland Sweden Netherlands Denmark Belgium Hungary Poland Czech Romania Bulgaria Ire land Tools USB Mode Fast Slow Toner Save On Off System Admin Password Protect No Yes
15. A NOTE 1 If necessary refer GP 20 for the acronym list and cross reference lists of more commonly recognised part Part 140N62874 152N01992 006 01184 009 01410 015N00486 Description ELA HOU Frame SCF MC2 Not Spared 1 2 9 PMO Base Frame SCF Not 10 11 15 Spared PBA SCF 17 18 19 CBF Harness SCF 8P 20 21 27 CAM Catch Not Spared ICT Shaft HV Large Spring ETC HV Large IPR Plate Ground A Foot Not Spared MEA Unit Lower SCF2 Not Spared PMO Guide Paper Lower Not Spared PMO Holder Idle Roll 16 Not Spared PMO Roller Idle SCF Not Spared PMO Bush Idle Roll SCF16 Not Spared Spring ETC Pad Not Spared MEA Unite Cassette Not Spared ELA HOU Solenoid SCF2 Not Spared Solenoid Pickup Not Spared Bracket Clutch SCF Not Spared ELA HOU Motor SCF2 Not Spared Bracket SCF Motor Not Spared SCF Gear 41 23 Not Spared OPC Gear 53 37 Not Spared SCF Gear 53 31 Not Spared Motor Step SCF 2K Not Spared Ring E REF PL 31 10 Item 6 CBF Harness SCF Not Spared CBF Harness GND Not Spared names AP 8 0025 A Parts List March 2004 PL 7 16 Work Centre M20 Family PL 8 10 Side Cover Assembly 1 of 2 Item Part Description 1 ELA HOU Side Cover Assembly Not Spared 2 022N02057 MEA Unit Duplex Assembly REP 8 2 3 Ring CS REF PL 31 10 6 4 Gear Dup Idler 17 see NO
16. Method Raster scanning method Image Sauce 300 400 600dpi CIS amp CCD Scanning Mode color gray image each 8 bits RGB mono gray image 8 bits pixel binary image 1 bit pixel for text photo mixed mode 7 Maximum scanning width 600dpi 8K effective pixels 8 Ideal A4 600 300dpi color gray image 3x5Kx80nsec 1 2msec 7 28 CPM mono gray image 1x5Kx80nsec 0 4msec 21 84 CPM binary image 1x5Kx80nsec 0 4msec 21 84 CPM 9 A D conversion depth 12bits Pixel Processing Structure Minimum pixel processing time 4 system clocks High speed pipeline processing method Shading correction Gamma correction Enlargement Reduction and Binarisation Shading Correction 1 White shading correction support for each R G B 2 White shading data memory 3x8Kx12bits 288Kbits 384Kbits external 3 Black shading data memory 3x8Kx12bits 288Kbits 384Kbits external Gamma Correction 1 Independent Gamma table for each RGB component 2 Gamma table data memory 3x1Kx8bits 24Kbits internal Binarisation mono 1 256 Gray s halftone representation for Photo document 3x5 EDF Error Diffusion method proposed by Stucki 2 LAT Local Adaptive Threshold for text document use of 5x5 LOCAL WINDOW TIP ALGORITHM Qugr C m General Procedures and Information GP 14 March 2004 Work Centre M20 Family ABC Automatic Background Control Tmin Automatic change 3 Mixed m
17. PL 8 10 Item 11 PMO GP lower DP PMO Processing mold GP Guide paper DP Duplex PL 8 10 Item 14 PMO bushing P U MP P U Pickup MP Multi purpose bypass tray PL 8 10 Item 24 Spring ETC TR R TR R Transfer Roller Right PL 8 10 Item 26 PMO holder gear TR TR Transfer roller PL 8 10 Item 27 Spring ETC TR L TR L Transfer roller Left PL 8 10 Item 30 PMO guide DP side DP Duplex PL 8 11 Item 2 PMO BUSHING P U MP P U Pickup MP Multi purpose bypass tray PL 8 11 Item 4 PMO tray case MP MP Multi purpose tray bypass tray PL 8 11 Item 12 ELA HOU MP assembly MP Multi purpose bypass tray PL 8 20 Item 1 PMO holder cam MPF MPF Multi purpose feeder PL 8 20 Item 9 PMO gear P U MPF P U Pickup MFP Multi functional peripheral PL 8 20 Item 10 RPR rubber pickup MP RPR Rubber press PL 8 20 Item 21 PBA SUB MP SEN PBA SUB MP SEN Sub printed cir cuit board assembly for the MP SEN Multi purpose bypass tray sensor PL 8 20 Item 24 A S material pickup MP A S After service PL 8 20 Item 27 PBA SUB PTL PBA SUB PTL Sub printed circuit board assembly for the PTL pre transfer lamp PL 8 25 Item 6 PBA SUB feed P EMP SEN PBA SUB feed Sub printed circuit board assembly for the feeder and paper empty sensor PL 8 25 Item 12
18. ROM Test Pattern Test Shading Test Error Rate Modem Speed Engine Test Silence Time Flash Upgrade Reset Passcode Serial Number Use this procedure to restore the machine serial number after replacing the Main PBA The serial number of each machine is marked on the rating label which is located on the rear of the machine The serial number should be 16 digits The actual serial number is comprised by the product code of 3 digits and serial number of 6 digits Therefore the last 7 digits are input by null code 0 Example RYR361001 RYR3610010000000 Clean Drum Use this procedure to clean the toner remaining on the OPC drum so a clean printout can be obtained Perform this procedure if stains or specks appear on the prints and print quality is defective The machine automatically prints a sheet of paper The toner particles on the OPC drum sur face are fixed to the paper It may be necessary to perform this procedure several times until a clean print is produced New Drum If the New OPC Error message is displayed after initial power on or after closing the cover after installing a new drum it makes installing a new drum compulsory Notify Toner Low When this feature is enabled if the toner level becomes low the information will be sent to a specified contact point for example the service company To enable access this menu select ON and when the LCD prompts enter the name and the
19. Transmittal Page Product Title Part Number WorkCentre M20 Family Service Manual 708P87563 Status Date Launch March 2004 Please note the following This output is created from an electronic documentation EDOC database and is not optimised for hard copy Please be aware of the following may not appear to be in the logical order when flowing around figures may continue on a following page without indication Figures may not appear on the page containing the figure reference EDOC hot link references can over write text Service Manual binder inserts WorkCentre M20 Family Service Manual Front pocket insert Xerox WorkCentre M20 Family Service Manual Spine insert THE DOCUMENT COMPANY XEROX Xerox WorkCentre M20 Family Service Manual March 2004 WorkCentre M20 Family Service Documentation WorkCentre M20 Service Manual 708P87563 March 2004 Prepared by The Document Company Xerox Global Knowledge amp Language Services Enterprise Centre P O Box 17 Bessemer Road Welwyn Garden City Hertfordshire AL7 1HE England Copyright 2004 by Xerox Europe All rights reserved Xerox Private Data All service documentation is supplied to Xerox external customers for informational purposes only Xerox service documentation is intended for use by certified product trained service per sonnel only Xerox
20. Use this procedure to test the CCD If the image quality is unsatisfactory perform this proce dure to check the operation of the CCD NOTE Before performing the adjust shading test ensure the DADF is lowered Perform the following 1 Enter service mode GP 3 Select ADJUST SHADING Press the SET UP button then an image will be scanned After the scan the CCD shading profile will be printed Figure 1 If the printed image is different to the CCD shading profile image the CCD is defective SHADING VALUE AP 8 0084 A Figure 1 Shading profile Error Rate If the error rate is about to exceed the set value the Baud rate is automatically lowered by up to a maximum of 2400 bps to ensure that the error rate remains below the set level The rate can be set between 5 and 10 Modem Speed The maximum modem speed can be set The machine will automatically lower the modem speed setting when communicating with a machine that has a lower transmit receive setting The default modem speed setting is 33 6Kbps This default setting should not be changed Engine Test Refer to Engine Test Mode Entry GP 1 Silence Time In ANS FAX mode after a call is picked up by the answering machine the machine monitors the line If a period of silence is detected on the line at any time the call will be treated as a fax message and the machine will begin receiving Silence detection time is selectable between li
21. VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones IQ5 Vertical White Lines RAP WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletz
22. peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efectua tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones 2 Status Indicator RAPs 1 1 Power Failure RAP WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali March 2004 Work Centre M20 Family Introduction Translation of Warnings mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles
23. 2 of 2 Item Part Description 1 050N00445 MEA Unit Side SUB Assembly 2 PMO Guide DP Side P O PL 8 11 Item 1 3 Guide Side Push P O PL 8 11 Item 1 4 PMO Locker Open P O PL 8 11 Item 1 5 PMO Locker Side R P O PL 8 11 Item 1 6 Spring Locker Torsion P O PL 8 11 Item 1 7 PMO Tie Stopper P O PL 8 11 Item 1 8 MEA Unit Tray Assembly P O PL 8 11 Item 1 REP 7 1 9 PMO Tray Case MP P O PL 8 11 Item 8 10 PMO Side Exit MP P O PL 8 11 Item 8 11 PMO Side Guide MP P O PL 8 11 Item 8 12 PMO Tray Cover MP P O PL 8 11 Item 8 13 IPR Guide Latch MP P O PL 8 11 Item 8 REP 8 3 14 PMO Tray Link MP P O PL 8 11 Item 8 15 Label Height MP P O PL 8 11 Item 8 NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more commonly recognised part names AP 8 0006 A Parts List PL 8 11 March 2004 5 20 Work Centre M20 Family PL 8 15 Feeder Assembly Item 1 2 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Part 022N02056 022N01470 Description MEA Unit Feed Roller Assembly REP 8 5 PMO Frame Feed P O PL 8 15 Item 1 Gear Feed P O PL 8 15 Item 1 Gear MP DUP DRV P O PL 8 15 Item 1 ICT Shaft Feed P O PL 8 15 Item 1 PMO Bushing P U MP P O PL 8 15 Item 1 Ring E P O PL 8 15 Item 1 Ring CS P O PL 8 15 I
24. 4 31 03 04 5 32 03 04 6 41 03 04 4 32 03 04 6 42 03 04 4 33 03 04 6 1 03 04 Page Rev Page Rev 4 34 03 04 6 2 03 04 7 1 03 04 Page Rev 4 35 03 04 6 3 03 04 7 2 4 9 1 6 03 04 529 03 04 4 36 03 04 6 4 03 04 7 3 03 04 1 7 03 04 3 10 03 04 4 37 03 04 6 5 03 04 Ke 4502 i 03 04 1 8 03 04 3 11 03 04 4 38 03 04 6 6 03 04 35 und 03 04 sue Usos 4 39 03 04 6 7 03 04 7 6 03 04 03 04 2 1 03 04 3 13 03 04 4 40 03 04 6 8 03 04 7 7 03 04 e 03 04 2 2 03 04 3 14 03 04 6 9 03 04 E GE vi 03 04 2 3 03 04 5 1 03 04 6 10 03 04 7 9 03 04 vii 03 04 2 4 03 04 4 1 03 04 5 2 03 04 6 11 03 04 7 10 03 04 viii 03 04 2 5 03 04 4 2 03 04 5 3 03 04 6 12 03 04 ix 03 04 2 6 03 04 4 3 03 04 5 4 03 04 6 13 03 04 8 1 03 04 03 04 2 7 03 04 4 4 03 04 5 5 03 04 6 14 03 04 8 2 03 04 03 04 2 8 03 04 4 5 03 04 5 6 03 04 6 15 03 04 03 04 2 9 03 04 4 6 03 04 5 7 03 04 6 16 03 04 xiii 03 04 2 10 03 04 4 7 03 04 5 8 03 04 6 17 03 04 xiv 03 04 2 11 03 04 4 8 03 04 5 9 03 04 6 18 03 04 03 04 2 12 03 04 4 9 03 04 5 10 03 04 6 19 03 04 03 04 2 13 03 04 4 10 03 04 5 11 03 04 6 20 03 04 xvii 03 04 2 14 03 04 4 11 03 04 5 12 03 04 6 21 03 04 xviii 03 04 2 15 03 04 4 12 03 04 5 13 03 04 6 22 03 04 xix 03 04 2 16 03 04 4 13 03 04 5 14 03 04 6 23 03 04 03 04 2 17 03 04 4 14 03 04 5 15 03 04 6 24 03 04 03 04 2 18 03 04 4 15 03 04 5 16 03 04 6 25 03 04 xxii 03 04 4 16 03 04 5 17 03 04 6 26 03 04 xxiii 03 04 3 1 03 04 4 1
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26. GP 14 Scanner Operation GP 15 Host Interface GP 16 Engine Controller GP 17 PBA OPE Operation GP 18 PBA LIU Operation GP 19 SMPS Unit Operation GP 20 Acronyms and Parts Description List GP 21 DADF Document Feeding Specifications GP 22 Paper and Media Specifications GP 23 Service Log March 2004 Service Call Procedures Work Centre M20 Family 1 5 SCP 4 SCP 5 Subsystem Maintenance Subsystem Maintenance contains information regarding the Component Life of the machine Component Life Switch off the electricity to the machine Disconnect the power cord from the cus WARNING SCP 6 Final Actions Final Actions are used to evaluate the total operation of the system and to identify the actions required to complete the service call Procedure tomer s supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury The component life outlined in Table 1 is a general guideline for maintenance The example list is for an average usage of 50 transmitted and received documents per day Environmental con ditions and actual use will vary these factors The component life shown in Table 1 is for refer ence only Table 1 Component life expectancies Part Component life Parts list reference MEA Unit holder DADF rubber 20k feeds PL 5 13 Item 7 MEA unit pickup 50k feeds PL 5 13 Item 17 RPR rubber pickup 50k feeds PL
27. Procedure 1 Press Menu Exit 1 9 3 4 in sequence The LCD will display T or TECH The machine has now entered service tech mode NOTE While in tech mode the machine will perform all normal operations 2 Refer to Table 1 or Table 2 Perform the following GE EH NOTE Options that have been changed in service mode will not be retained unless the Press Machine Status Use the up and down keys to scroll through the functions Press Enter to select the required function Use the left and right keys to scroll through the items Press Enter to select the required item Use the left and right keys to scroll through the options Press Enter to select the required option 3 exit service tech mode press Menu Exit 1 9 3 4 in sequence or switch off the machine then switch on the machine machines memory is cleared Table 1 M20i service mode settings Function Item Option Machine Setup Tray 1 Size Letter A4 Legal Folio Tray 2 Size Letter A4 Legal Folio Bypass Size Letter A4 Legal Folio A5 Statement Power Save On Off Machine Timeout 15 30 60 180 Off Stamp RX Name On Off Alarm Sound On Off Key Sound On Off Speaker Control On Off Comm Language English French German Italian Spanish Portuguese Dutch Danish Finnish Nor wegian Swedish Russian Localisation Inch MM Table 1 M
28. REP 4 1 ELA HOU Drive Assembly Parts List on PL 4 20 Removal WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury WARNING Take care during this procedure Sharp edges may be present that can cause injury CAUTION Before performing this procedure refer to General Disassembly Precautions GP 10 NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names 1 Remove the MEA unit rear cover REP 4 2 2 Prepare to remove the ELA HOU drive assembly Figure 1 1 Disconnect CN15 and CN16 AP 1 0055 A Figure 1 Preparation 3 Remove the ELA HOU duct fan Figure 2 1 um Disconnect CN13 Remove 1 screw then the ELA HOU duct fan AP 1 0056 A Figure 2 ELA HOU duct fan removal 4 Remove the ELA HOU drive assembly Figure 3 1 Remove 4 screws and disconnect 2 ground har nesses 2 Remove the ELA HOU drive assembly AP 1 0057 A Figure 3 ELA HOU drive assembly removal Repairs and Adjustments March 2004 REP 4 1 4 8 Work Centre M20 Family Replacement 1 Replacement is the reverse of the removal procedure To make the replacement of the drive assembly easier pull out the ELA OPC unit set PL 9 10 Item 1 and ELA toner unit set PL 9 10 Item 2 app
29. Service Call Procedures March 2004 SCP 7 1 8 Work Centre M20 Family 2 Status Indicator RAPs 1 RAP ee e EU d et 2 3 5 1 Load Document RAP LLAIN E Anara aE 2 4 5 2 Doct ment Jam RAP hr dero Tenere ee dde 2 4 6 1 LSU Error RAP ee onere rre tener e FED dne 2 5 8 1 Door Open RAP Hed 2 5 8 2 Bypass Jam RAP aiio e ipte et d ns ea dea ea ep EXE 2 6 8 3 90 testcase tee e Re EA DETENER 2 6 8 4 Paper Jam 0 Open Close Door RAP 2 7 8 5 Paper Jam 1 Open Close Door RAP 2 7 8 6 Paper Jam 2 Check Inside RAP jos 2 8 8 7 No Paper Add Paper RAP 2 8 9 1 Install Cartridge 4 0 4 1 1 2 9 9 2 Non Xerox Toner Cartridge RAP iis 2 9 9 3 Drum Elle NL 2 10 9 4 Replace Drum ed NEEN CN 2 10 9 5 7 2 11 9 6 Topert LOW RAP cc 2 11 10 1 Low Heat Error RAP wee 2 12 10 2 Open Heat Error RAP 2 12 10 3 Over Heat Error RAP tnnt entrer ene eren eee E rH indue 2 13 20 1
30. Table 1 Skew specifications 105 3 Registration Documents Test pattern 82P524 Specifications Refer to Table 1 Table 1 Registration measurement Skew Specification Registration Specification Print Skew Max 2 5mm 7 64 inch per 250mm 10 inches 1 Lead edge 4mm 5 32 inches 3mm 1 8 inches Top edge 4mm 5 32 inches 3mm 1 8 inches Image Quality March 2004 IQS 2 IQS 3 3 14 Work Centre M20 Family 4 Repairs and Adjustments RER LSM oe HMR GENEE 4 3 REP 4 4 REP 2 1 ELA HOU OPE 4 5 REP 4 1 ELA HOU Drive 4 8 REP 4 2 MEA Unit Rear Cover sid 4 9 REP 4 3 PMO Cover Exit Rear eese enne nennen nnne 4 10 REP 4 4 ELA HOU Frame Main Assembly essen 4 11 REP 5 1 ELA HOU DADF es 4 13 REP 6 1 Unit LSU 4 20 REP 7 1 MEC Unit Tray Assembly ee 4 22 REP 8 1 ELA HOU Side Cover Assembly 4 23 REP 8 2 MEA Unit Duplex 4 24 REP 8 3 Transfer Roller Assembly qu 4 24 REP 8 4 ELA HOU MP Assembly 4 25 REP 8 5 MEA Unit Feed Roller Assembly 4 26 REP 8 6 ELA HOU Pickup Assembly 4 27 REP 10 1 ELA HOU Fuser Assembly 4 29 REP 10 2 MEC Exit Assembly zw 4 31
31. causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones IQ8 Background RAP WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones 109 Ghost Images RAP WARNING Switch off the electricity to the machine Disconne
32. lf this is the first service call to this machine perform SCP 2 First Call Actions otherwise go to SCP 3 Normal Call Actions SCP 2 First Call Actions First Call Actions are used for the first service call Procedure 1 Check the machine configuration with the customer Check that all required hardware and software is installed and or enabled 2 Check that all the relevant machine settings are correctly entered refer to GP 2 3 Mark off any hardware software options and modifications installed and or enabled on the Tag matrix card 4 Ifa fault is present go to SCP 3 Normal Call Actions If there is no fault present go to SCP 6 Final Actions 5 Enter the machine details and the customer details in the service logbook March 2004 Work Centre M20 Family 1 3 Service Call Procedures SCP 1 SCP 2 SCP 3 Normal Call Actions Normal Call Actions are used to determine the reason for the service call Procedure NOTE If a fault message appears at any time Refer directly to the RAP for the fault message and perform the procedure Perform the following 1 Review any defective print or copy samples 2 Determine that the user accessible settings are correct If necessary refer to the user doc umentation 3 Check all job queues and verify with the customer any requirement to print the documents in memory before switching off the power or clearing memory 4 Printthe Billing Counters report then record th
33. quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones WARNING Do not touch the fuser while it is hot DANGER Ne pas toucher au four pendant qu il est encore chaud AVVERTENZA Non toccare il fonditore quando caldo VORSICHT Fixierbereich erst ber hren wenn dieser abgek hlt ist AVISO No toque el fusor mientras est caliente 20 1 Fax Error Messages RAP WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontak
34. 022N02057 PL 8 10 007 01115 PL 10 10 023N00954 PL 14 11 007N01118 PL 9 10 023N00955 PL 14 11 007N01193 PL 8 25 023N01051 PL 10 10 007 01261 PL 10 10 025 00081 PL 5 14 009N01363 PL 8 10 029N00345 PL 2 11 009N01364 PL 8 20 029N00346 PL 2 11 009N01365 PL 8 20 029N00347 PL 2 11 009N01410 PL 7 16 029N00348 PL 2 11 009N01465 PL 7 10 029 00349 PL 2 11 March 2004 parts pst Part Number Index Table 1 Part Number Index Table 1 Part Number Index Part Number Part List Part Number Part List 029N00350 PL 2 11 120N00393 PL 8 25 029N00351 PL 2 11 PL 7 15 029N00352 PL 2 11 120N00438 PL 5 10 029N00353 PL 2 11 122N00234 PL 6 10 029N00354 PL 2 11 127N01375 PL 4 20 029N00355 PL 2 11 127N07298 PL 4 20 029N00356 PL 2 11 127N07299 PL 4 20 030 00606 PL 4 10 127N07300 PL 4 10 038 00371 PL 4 25 130 01201 PL 5 14 050 00392 4 25 130 01203 8 20 050 00441 PL 7 10 130N01204 PL 8 25 050N00442 PL 7 10 130N01205 PL 4 15 050N00443 PL 5 10 130N01206 PL 8 20 050N00445 PL 8 11 130N01207 PL 8 25 091 00699 4 25 130 01208 4 15 091 80193 PL 2 10 130N01213 PL 4 10 091N80194 PL 2 10 130N01337 PL 8 25 091N80195 PL 2 10 PL 7 15 091N80196 PL 2 10 130N01338 PL 8 20 091N80197 PL 2 10 140N05936 PL 14 11 091N80198 PL 2 10 140N05940 PL 8 25 091N80199 PL 2 10 140N62859 PL 1 10 091N80200 PL 2 10 140N62860
35. 10 Item 7 GND Ground PBA main PBA Printed circuit board assembly PL 1 10 Item 9 PBA LIU PBA Printed circuit board assembly PL 1 10 Item 13 LIU Line Interface unit for FAX Cover M OPE M Mold PL 2 10 Item 14 OPE Operation panel control panel Key M copy M Mold PL 2 11 Item 4 Holder catch CST MC2 2 Development code name for 4 10 Item 6 machine March 2004 General Procedures and Information Work Centre M20 Family 6 35 GP 19 GP 20 Table 1 Acronyms Table 1 Acronyms Acronym Description PL Ref Acronym Description PL Ref IPR ground plate A OPC OPC Organic photo conductive PL 4 10 Item 8 Spring CS FR CS Compress PL 7 10 Item 14 ELA M M AUD speaker ELA M M Electrical assembly PL 4 10 Item 14 FR Front AUD Audio PMO bushing finger F F Front PL 7 10 Item 19 CBF harness OPC GND OPC Organic photo conduc 4 10 Item 16 Ring CS CS Compress PL 8 10 Item 3 tive ground Gear MP DUP DRV MP Multi purpose bypass tray PL 8 10 Item 5 IPR ground plate SCF SCF Second cassette feeder tray2 PL 4 10 Item 21 DUP DRV Duplex driver CBF harness main THV wire THV Transfer high voltage PL 4 15 Item 9 PMO bushing TX B4 TX Transmit PL 8 10 Item 8 CBF harness main MHV wire MHV High voltage charge voltage PL 4 15 Item 10 Gear exit U ID U Upper PL 4 15 Item 24 ID Idler I
36. 122N00234 152N11549 2 Fan DC Cardinal REF PL 4 10 Item 17 e NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more commonly recognised part names AP 8 0012 A Parts List PL 6 10 March 2004 5 15 Work Centre M20 Family PL 7 10 Tray 1 Cassette Assembly Item 1 2 10 11 12 13 14 15 16 17 18 19 20 21 22 Part 050N00442 050 00441 009 01465 009 01466 091380204 091380205 Description Mec Cassette Assembly A4 Mec Cassette Assembly Letter Plate Guide Paper P O PL 7 10 Item 1 IPR Plate K UP P O PL 7 10 Item 1 IPR Finger Right P O PL 7 10 Item 1 PMO Cover Cassette P O PL 7 10 Item 1 PMO Frame Cassette P O PL 7 10 Item 1 Guide Front CST Plus P O PL 7 10 Item 1 PMO Guide Rear P O PL 7 10 Item 1 Guide Side CST P O PL 7 10 Item 1 PMO Locker Plate P O PL 7 10 Item 1 Pad CST Plus P O PL 7 10 Item 1 Spring Locker Plate P O PL 7 10 Item 1 Spring CS RE Spring CS FR Label R Instruction CST Plus Label R Height CST Guide Side Handle P O PL 7 10 Item 1 IPR Finger Left P O PL 7 10 Item 1 PMO Bushing Finger F P O PL 7 10 Item 1 Washer Plain REF PL 31 10 Item 6 Spring White Bar P O PL 7 10 Item 1 Guide Sub Wall P O PL 7 10 Item 1 NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more commonl
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38. 20 Item 1 29 ELA HOU Duct Fan P O PL 4 20 Item 1 REP 4 1 30 PMO Duct Fan P O PL 4 20 Item 29 31 127N01375 Fan DC P O PL 4 20 29 32 CBF Harness LIU GND Not Spared NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more commonly recognised part 29 30 31 AP 8 0013 A names Parts List March 2004 PL 4 20 5 8 Work Centre M20 Family PL 4 25 Covers Item Part Description 1 002N02107 MEA Unit Cover PA Exit Assembly 2 050N00392 PMO Tray Extension MP NE 3 PMO Cover Paper Exit P O PL 4 25 1 REP 10 3 4 PMO Connect Paper MFP C20 M20 Not Spared PMO Connect Paper M20i Not Spared 5 002N02009 Cover Exit Rear REP 4 3 17 18 19 26 6 002N02161 Unit Cover Front Assembly 7 Plate Badge XRX P O PL 4 25 Item 6 8 Cover M Front P O PL 4 25 Item 6 9 091N00699 IPR Badge XRX 10 001N00384 MEA Unit Guide CST PA Assembly 11 PMO Sheet Guide Paper P O PL 4 25 Item 10 12 Mylar Strip P O PL 4 25 Item 10 13 PMO Guide Cassette Rail P O PL 4 25 Item 10 14 001N00451 Dummy Base Frame 15 ELA HOU Base Frame Assembly Not Spared 16 PMO Cover Feed Not Spared REP 8 4 17 002N02280 MEA Unit Rear Cover REP 4 2 18 Cover Rear Dummy P O PL 4 25 Item 17 19 Cover Main Rear P O PL 4 25 Item 17 20 002N02017 Cover Bracket Motor 21 011N00465 PMO
39. 2004 Status Indicator RAPs Work Centre M20 Family 2 9 9 1 9 2 9 3 Drum Warning RAP The drum cartridge is near the end of the design life The message indicates that the drum has reached 18 000 print pages The drum life is 20 000 print pages Procedure WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names 1 No immediate action is necessary Ensure that a replacement cartridge is in stock ELA OPC unit set PL 9 10 Item 1 9 4 Replace Drum RAP The drum cartridge has reached the end of the design life of 20 000 print pages Procedure WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names Refer to Wiring Diagram 1 and Wiring Diagram 4 Perform the following 1 Install a new ELA OPC unit set PL 9 10 Item 1 2 Goto GP 1 Perform the OPC Fuse State test and the OPC Fuse Check test 3 Check for continuity between the spring contacts at the re
40. 4 15 Item 10 CBF harness AC wire Fuser power supply harness PL 4 15 Item 19 CBF harness switch micro Right hand cover interlock switch PL 4 15 Item 20 PBA SUB exit sensor Fuser exit sensor PL 4 15 Item 22 PBA SUB toner RX Toner empty sensor transmitter PL 4 15 Item 23 Part name Commonly known as PL Ref CBF harness thermistor joint Thermistor harness PL 4 15 Item 26 IPR Shield SMPS upper Power supply unit cover PL 1 10 Item 1 IPR terminal fuser Fuser power supply connector PL 4 15 Item 28 CBF power switch grey On Off switch PL 1 10 Item 2 ELA HOU drive assembly Main drive assembly PL 4 20 Item 1 SMPS HVPS Power supply unit PL 1 10 Item 4 Motor step MCK2 main Fuser and exit drive motor PL 4 20 Item 2 CBF harness inlet Power socket PL 1 10 Item 8 Motor DC MCK2 BLDC Feed motor PL 4 20 Item 4 PBA main Main PWB PL 1 10 Item 9 Fan DC Fuser cooling fan PL 4 20 Item 31 PBA ETC PS DIMM Postscript DIMM PL 1 10 Item 11 MEA unit cover PA exit assembly Exit cover assembly PL 4 25 Item 1 PBA LIU Fax PWB PL 1 10 Item 13 PMO cover exit rear Rear exit cover PL 4 25 Item 5 PBA SUB NPC3 MFP Network interface PWB PL 1 10 Item 14 MEA unit cover front assembly Front door assembly PL 4 25 Item 6 PBA foreign device interface Foreign device interface PWB PL 1 10 Item 16 MEA unit guide CST PA assembly Tray 1 paper feed guide PL 4 25 Ite
41. 5 13 PBA SUB EXIT OPEN PL 5 13 PBA SUB REGI PL 5 10 PBA SUB DADF INLINE PL 5 11 CONNECTOR 24 0M TRAV 24V se SC MEC CLUTCH m 1 4 mm Te SMALL FEED RED 24V 2 zi BLK FEEDCL S BLK PL 5 13 ov 13 BLK i WHT BLK ov em YEL AEN ps 25v zi e 0V INLINE BLU Rn FE CONNECTOR MEC CLUTCH SYS RST _ dan i SMALL Ie e ORA 34 1 REGISTRATION i gt DADERX 595 GRN REGICL i BLK PL 5 11 1 CNA WD2 lt DKGRN papFTX 4 4 2 gt lt 79 GRN WHT 2 BRN DADFSCAN ee la SHY STOP LM INLINE LTGRN ENGINERDY MEC CLUTCH SE ov 13 RM SE RED WHT ov Ce 1 YEL DUPLEX CL PLE 42 BLK IWHT ov YEL WHT PNK CV i 16 L he NC ov INLINE ELA HOU COVER SS 5V CONNECTOR OPEN SWITCH PL 5 11 PBA SUB SENSOR REB 5V 1 2 IF 5V 5V BLU GC RE e uo 2 4 ov E RED GEN RED E 2 2 sum RED IR RED 3 o 34 GATESEN 5 MOTOR STEP CN3 G RED EXIT OPEN SEN j 24 S BLU Pa RED poc LENGTH SEN E STEP PULSES PL5 11 RED RED DOCSEN Miis il RED STEP PULSES BRN BED a E RED WIDTH SEN DRIVER 52 STER PULSES E WW RED gEGISEN O
42. AP 1 0058 A Figure 1 IPR shield SMPS upper removal 3 Disconnect the following connectors from the SMPS HVPS 2 102 101 CON103 March 2004 Repairs and Adjustments Work Centre M20 Family 4 3 REP 1 1 REP 1 2 PBA Main Parts List on PL 1 10 Removal 2 Remove 2 screws then WARNING the PBA LIU Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury d WARNING o ty Take care during this procedure Sharp edges may be present that can cause injury CAUTION Before performing this procedure refer to General Disassembly Precautions GP 10 NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com 1 monly recognised part names Disconnect CN35 AP 1 0078 A Figure 1 PBA LIU removal CAUTION 4 Disconnect the CNs from the PBA main Ensure that E S D procedures are observed during the removal and installation of the main 5 If installed remove the PBA SUB NPC3 MFP PL 1 10 Item 14 SDRAM DIMM PL PBA Make a visual check to ensure that the pins are fully inserted without being damaged 1 10 Item 12 PBA ETC PS DIMM PL 1 10 Item 11 PBA foreign device interface PL 1 PBA main is to be installed go to GP 2 Print the System Data list and Connect 1 10 Item 16 and PBA foreign device interfa
43. DIO 3 3V 1 BLU po DEV CLK ae SCF STS pn vd Jd YEL 1 i i SCF CMD art ci SPRING i 43 nee SCRCLK H 4 WHT i CONTACTS I oPc monitor 1 2822 o lt I 1 1 Y 1 2 GE RED it GRN ov 7 7 CN23 T yo ov ae PBA SUB 1 BLK TONER RX TONER RX A ee hace i PL 4 15 lt 3 3 3 aav PBAAIR 4 o 11 SV TEMPERATURE ba GRN AIRTEMP rud 5V lt RED ER n CBF HARNESS 1 2 C RED SWITCH MICRO a PL 4 15 2 2A 3 3 24VS fo PBA LIU EAE UE E PL 1 10 ELA HOU MP ASSEMBLY PL 8 20 Wu FUSE WILL NEW ELA OPC UNIT IS INSTALLED THE NEW UNIT IS THEN DETECTED BY THE SOFTWARE DURING NORMAL OPERATION THIS FUSE WILL BE BLOWN SOLENOID MP PL 8 20 PBA SUB MP SENSOR PL 8 20 SOLENOID PICKUP PL 4 10 BE BLOWN WHENA SDRAM DIMM PL 1 10 PBA SUB NP3C MFP PL 1 10 EXT LINE TAP 1 0004 A Figure 4 Wiring Diagram 4 March 2004 Mining Date Work Centre M20 Family 7 7 Wiring Diagrams Wiring Diagram 5 PBA SUB GATE PL 5 14 PBA SUB LENGTH PL 5 10 MEA UNIT GUIDE PICKUP PBA SUB DOC WIDTH 1 PL 5 13 PBA SUB DOC WIDTH 2 PL
44. ELA OPC unit drum P O ELA OPC unit drum PL 9 10 Item 1 38 3mm Charge roller P O ELA OPC unit drum PL 9 10 Item 1 43 8mm Supply roller P O ELA toner unit set PL 9 10 Item 2 54 3mm Developer roller P O ELA toner unit set PL 9 10 Item 2 March 2004 Image Quality Work Centre M20 Family 3 11 1015 1Q16 Periodic Printing Defects Check RAP Use this RAP when the printed image shows regular patterns in black or white across the pro cess direction Procedure WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names 1 Goto GP 3 Perform the Clean Drum routine If necessary install a new ELA OPC unit drum PL 9 10 Item 1 2 Measure the distance between the repeated black or white abnormality Refer to Table 1 identify the possible cause Table 1 Abnormal image distance Defect dis Kind of abnormal Parts List tance image Roller Component Ref 94 3mm White spot Black ELA OPC P O ELA OPC PL 9 10 spot unit drum unit drum Item 1 38 3mm White spot Black Charge roller P O ELA OPC PL 9 10 spot unit drum Item 1 43 8mm Horizontal dark Supply roller P O ELA toner unit PL 9 10 band set Ite
45. Fax Error Messages RAP 4242404400 000 2 18 20 2 Scan to E mail Error Messages 2 14 20 3 Fax Faults Without a Message RAP 2015 OF1 Function Impossible 2 16 GEZ Gong dese AE dE o XO ee 2 16 Use Auxiliary Access RAP ses 2 17 OFA Audible Noise RAP miini nad eed atacand ade dl ta dard de ep der 2 17 March 2004 Status Indicator RAPs Work Centre M20 Family 2 1 Status Indicator RAPs March 2004 2 2 Work Centre M20 Family 1 1 Power Failure RAP Use this RAP to identify the cause of a power supply failure Procedure WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury WARNING Take care when measuring AC mains line voltage Electricity can cause death or injury NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names NOTE Throughout this procedure where further steps require the reconnection of a compo nent ensure they are reconnected before performing the next step Refer to Wiring Diagram 1 Wiring Diagram 2 Wiring Diagram 3 and Wiring Diagram 4 Per form the following 1 Ensure the supply voltage is correct If possible connect the machine to a known good power supply If the
46. Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones 9 4 Replace Drum RAP WARNING Switch off the electricity to the machine Disconnect the power cord from the customer Introduction Translation of Warnings March 2004 Work Centre M20 Family supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzs
47. IQ5 Vertical White Lines RAP eese nenne nnne nnne enne 3 5 IG6 Light Image LEE 3 5 IQ7 Dark Image RAP 3 6 IQ8 Background RAP xU 3 7 IQ9 Ghost Images RAP ET 3 7 IQ10 Stains on Back of Paper RAP 3 8 IQ11 Poor FUSING RAP irent rte prenne ee eren he er dr bereiten 3 9 1012 Partial Blank Image Not Periodic RAP ses 3 9 1Q13 Partial Blank Image Periodic 3 10 1Q14 Different Image Density Left and Right 3 10 1Q15 Horizontal Bands DAP 3 11 1Q16 Periodic Printing Defects Check RAP sess 3 12 Image Quality Specifications IOS 1 Solid Area Density e Ee EES 3 13 IQS 2 SKOeW 5 et cce EE 3 14 IOS 3 Registration rooted en ge pP Dp rS ode t edel b eee ee 3 14 March 2004 Image Quality Work Centre M20 Family 3 1 CE Work Centre M20 Family Image Quality 2 IQ1 Blank Copies RAP Use this RAP when the machine produces blank copies Procedure WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names Determine the source of the problem Make a print Make a copy If the fault ap
48. Lever Jam Remove 22 011N00464 CAM Jam Remove 23 Special Screw Panel Not Spared 24 ELA HOU Frame Main Assembly REF PL 4 15 Item 1 25 038N00371 PMO Guide Paper Out 26 Label Guide DIMM P O PL 4 25 10 11 13 27 Item 17 27 IPR Guide CST Paper P O PL 4 25 Item 10 AP 8 0015 A NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more commonly recognised part names March 2004 Parts List Work Centre M20 Family 5 9 PL 4 25 PL 5 10 DADF Assembly 1 of 5 Item Part Description 1 002N02275 ELA HOU DADF 2 002N02288 MEA Unit Cover Open REP 5 1 3 Cover Open P O PL 5 10 Item 2 4 PMO Stopper Exit P O PL 5 10 Item 2 5 Gear DADF 24 A P O PL 5 10 Item 2 6 Roller REGI P O PL 5 10 2 7 PMO Lever Open P O PL 5 10 Item 2 8 Spring ETC Knockup MP P O PL 5 10 Item 2 9 140N62869 SUB REGI 10 PMO Actuator REGI P O PL 5 10 Item 2 11 Cover Sensor P O PL 5 10 Item 2 12 Spring ETC Torsion DOC P O PL 5 10 Item 2 13 Bush 6D P O PL 5 10 2 14 Ring E REF PL 31 10 6 15 CBF Harness LIU GND P O PL 5 10 Item 2 16 Ground P Duplex P O PL 5 10 Item 2 17 Cover M Harness P O PL 5 10 Item 2 18 050N00443 Unit TX Stacker REP 5 1 19 PMO TX Stacker P O PL 5 10 Item 18 20 Guide M DOC Left P O PL 5 10 Item 18 21 Guide DOC Ri
49. MP Bypass tray feed roll assembly PL 8 20 Item 27 Pickup Assembly Refer to Table 12 Table 12 Pickup assembly Part name Commonly known as PL Ref ELA HOU pickup assembly transport assembly PL 8 20 Item 1 PBA SUB toner TX Toner empty sensor receiver PL 8 20 Item 5 PBA Sub PTL Pre transfer lamp PL 8 20 Item 6 PMO actuator feed sensor Tray 1 feed sensor actuator PL 8 20 Item 7 PBA SUB feed amp P EMP SEN Tray 1 sensor and feed sensor assembly PL 8 25 Item 12 RPR rubber pickup Tray 1 feed roll large PL 8 25 Item 16 Rubber pickup small Tray 1 feed roll small PL 8 25 Item 17 PMO actuator no paper Tray 1 empty sensor actuator PL 8 25 Item 25 Toner Drum Cartridge and Fuser Refer to Table 13 Table 13 Toner drum cartridge and fuser Part name Commonly known as PL Ref ELA OPC unit set Xerographic module PL 9 10 Item 1 ELA toner unit set Developer module PL 9 10 Item 2 ELA HOU fuser assembly Fuser module PL 9 10 Item 4 Exit Assembly Refer to Table 14 Table 14 Exit assembly Part name Commonly known as PL Ref MEC exit assembly Paper exit assembly PL 10 10 Item 1 PBA SUB bin full sensor Exit tray full sensor PL 10 10 Item 20 Actuator SUB bin full sensor Exit tray full sensor actuator PL 10 10 Item 21 Scanner Assembl
50. Not Used PBA ETC PS DIMM SDRAM DIMM 32MB C20 M20 SDRAM DIMM 48MB M20i PBA LIU see below for variants REP 1 2 PBA LIU G1 U K PBA LIU G4 NASG XCL PBA LIU G3 Poland PBA LIU G2 Russia PBA SUB NPC3 MFP REP 1 2 PBA SUB NPC3 Direct REP 1 2 CBF Harness LIU PBA Foreign Device Interface PBA Foreign Device Interface Harness PBA Foreign Device Interface Bracket P O PL 1 10 Item 19 Foreign Device Interface Kit REF PL 31 10 Item 1 AC Power Cord NASG XCL USB Cable Telephone Line Cord NASG XCL AP 8 0022 A NOTE 1 If necessary refer to GP 20 for the acronym list and cross reference lists of more commonly recognised part names March 2004 Parts List Work Centre M20 Family 5 3 PL 1 10 PL 2 10 OPE Assembly 1 of 2 Item 1 2 3 On 12 13 14 Part 091N80194 091N80193 091N80201 091N80200 091N80203 091N80202 091N80199 091N80198 091 N80196 091N80197 091N80195 002N02281 700 00097 700 00096 002 02283 Description ELA HOU OPE Assembly Not Spared REP 2 1 Window LCD Not Spared Sheet Overlay Center A C20 M20 Sheet Overlay Center A M20i Sheet Overlay Center A French C20 M20 Sheet Overlay Center A French M20i Sheet Overlay Center A C20 M20 Portuguese Sheet Overlay Center A M20i Portuguese Sheet Overlay Center A C20 M20 Spanish Sheet Overlay Cen
51. OF2 IP Conflict RAP WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones OF3 Use Auxiliary Access RAP WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do n
52. Observe all ESD procedures to avoid component damage Laser radiation warning symbol Introduction March 2004 Warnings Cautions And Notes iv Work Centre M20 Family Safety Precautions 5 Do not use freon propelled chemicals When sprayed these can generate electrical GN d charges sufficient to damage ESDs Follow these safety ESD and servicing precautions to prevent personal injury and equipment 4 r oh damage 6 Do not remove replacement ESD from its protective packaging until immediately before installing it Most replacement ESDs are packaged with all leads shorted together by con 1 Ensure that all built in protective devices are in place Restore any missing protective ductive foam aluminum foil or a comparable conductive material shields 7 Immediately before removing the protective shorting material from the leads of a replace 2 Make sure there are no cabinet openings through which people particularly children ment ESD touch the protective material to the chassis or circuit assembly into which the might insert fingers or objects and contact dangerous voltages device will be installed ke 3 When re installing chassis and assemblies be sure to restore all protective devices 8 Maintain continuous electrical contact between the ESD and the assembly into which it including control knobs and compartment Dee will be installed until completely plugged or soldered into the circuit 4 Design alteration warning ne
53. PL 9 10 Item 2 3 Goto GP 1 Engine Test Mode Entry and perform the LSU tests test 1 4 Perform the following as necessary Refer to Wiring Diagram 3 e The LSU is supplied with 5V through the CBF harness Enter GP 1 Engine Test Mode Entry Use the sensor test to check the CBF harness switch micro Check that both micro switches in the CBF harness Switch Micro are switching one controls the 5V to the unit LSU If necessary install a new CBF harness Switch micro PL 4 15 Item 20 Check the wiring between the unit LSU and the PBA main Repair or install a new CBF harness LSU PL 6 10 Item 2 as necessary Install a new unit LSU PL 6 10 Item 1 5 Refer to Wiring Diagram 1 Go to GP 1 Engine Test Mode Entry Perform test number 5 to check the MHV ADC and THV ADC read values If necessary perform the following Check the contact springs supplying the voltages to the ELA OPC unit set and the wiring to the SMPS HVPS Install a new ELA OPC unit set PL 9 10 Item 1 Install a new SMPS HVPS PL 1 10 Item 4 6 Print a test pattern For example print the help list from the reports menu GP 2 User Entry Mode If necessary install a new PBA main PL 1 10 Item 9 March 2004 Image Quality Work Centre M20 Family 3 3 IQ1 102 1Q3 Blurred Image From the Scanner RAP Use this RAP when the scanner produces blurred images Procedure WARNING Switch off the electricity to the machine Disconnect the power cord from th
54. REP 10 3 MEA Unit Cover PA Exit Assembly 4 32 REP 14 1 ELA HOU Scanner 4 33 ADJ 1 1 dell CN 4 39 March 2004 Repairs and Adjustments Work Centre M20 Family 4 1 Repairs and Adjustments March 2004 4 2 Work Centre M20 Family REP 1 1 SMPS HVPS green wire blue shield Parts List on PL 1 10 red wire blue shield Removal 4 Remove the SMPS HVPS Figure 2 WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury WARNING Take care during this procedure Sharp edges may be present that can cause injury CAUTION Before performing this procedure refer to General Disassembly Precautions GP 10 1 Disconnect the inline connector NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names 1 Remove the MEA unit cover PA exit assembly REP 10 3 2 Remove the IPR shield SMPS upper Figure 1 1 Remove 3 screws then the IPR shield SMPS upper 2 Remove the SMPS HES 1 0059 Figure 2 SMPS HVPS removal Replacement Replacement is the reverse of the removal procedure Ensure both ground harnesses are reconnected to the IPR shield SMPS upper
55. Remove the ELA toner unit set and gently shake it If the message persists install a new ELA toner unit set PL 9 10 Item 2 March 2004 Work Centre M20 Family 2 11 Status Indicator RAPs 9 5 9 6 10 1 Low Heat Error RAP The fuser has failed to reach the correct operating temperature or a disconnected thermistor has been detected Procedure WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury WARNING Do not touch the fuser while it is hot NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names Refer to Wiring Diagram 1 and Wiring Diagram 3 Perform the following 1 Switch off the machine then switch on the machine 10 2 Open Heat Error RAP During normal operation the temperature has dropped below the operating level Procedure WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury WARNING Do not touch the fuser while it is hot NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names Refer to Wiring Diagram 1 and Wiring Diagram 3 Perf
56. SCAN Upper Assembly REP 14 1 A S Material Dummy Upper Assembly REP 14 1 MCT Glass DADF P O PL 14 10 Item 3 Label L Registration Edge L P O PL 14 10 Item 3 PMO Dummy Upper P O PL 14 10 Item 3 Sheet Dummy Upper P O PL 14 10 Item 3 PPR Registration Edge F P O PL 14 10 Item 2 PMO Cover Scan Upper P O PL 14 10 Item 2 IPR Holder Glass P O PL 14 10 Item 2 Label P Sheet Shading P O PL 14 10 Item 2 MCT Glass Scanner Legal P O PL 14 10 Item 2 NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more commonly recognised part names 3 4 7 2 3 12 AP 8 0003 A Parts List March 2004 PL 14 10 5 26 Work Centre M20 Family PL 14 11 ELA HOU Scanner Assembly 2 of 2 Item Part 1 2 023N00954 3 023 00955 4 5 140N62872 6 7 8 9 10 11 140 05936 12 011 00473 13 14 152 11552 15 16 002N02166 17 117N01605 18 152 11553 19 20 21 22 23 002N02290 24 25 26 27 28 29 30 31 Description Shaft CCD UMAX Not Spared REP 14 1 Belt Timing Gear REP 14 1 Spring ETC Belt Ring E REF PL 31 10 Item 6 PBA SUB D SUB REP 14 1 PMO Pulley Not Spared Washer Plain Not Spared ICT Insert Shaft Not Spared CBF Harness Driver GND Not Spared Not Used Not Spared IPR BRK Scan BD PMO Lever Sensor Spring ETC Exit Not Spared CBF Harness Scan Motor Cover M CCD Cable Not Spa
57. Specifications Purpose To list the paper and media size specifications Specifications NOTE Ensure that the paper tray settings match the paper size in the tray Refer to Table 1 for the paper and media sizes that can be used in the machine Refer to Table 2 for the paper or media weight that can be used in the machine Table 1 Paper and media specifications Size Input Source Paper Type W x L mm Wx L inch Bypass Tray 1 or 2 Duplex Letter 215 9 x 27 8 5 x 11 X X X Legal 215 9 x 355 6 8 5 x 14 X X X Folio 216 x 330 8 5 x 13 X X X A4 210 x 297 8 27 x 11 69 X X X JIS B5 182 x 257 7 17 x 10 12 X Executive 184 2 x 266 7 7 25 x 10 5 X A5 148 5x210 15 85 x 8 27 X Statement N A 5 5 x 8 5 X A6 CARD 105 148 5 4 13 5 85 X Post card 4 x 6 101 6 x 152 4 4x 6 X Hagaki 100 x 148 3 94 x 5 83 X Envelope B5 176 x 250 N A X Envelope 7 3 4 98 4x190 5 3 88x7 5 X Envelope COM 10 105 x 241 4 12 x 9 5 X see note Envelope DL 110 x 220 4 33 x 8 66 X Envelope C5 162 x 229 6 38 x 9 02 X Envelope C6 114 x 162 N A X Custom 98 x 148 3 86 x 5 83 X 215 9 x 355 6 8 5 x 14 NOTE COM 10 envelope weight must not exceed 75 gsm 2016 Table 2 Paper or media weights Paper or Media Source Weight Tray 1 60 gsm 90 gsm 16lb 2416 Tray 2 60 gsm 90 gsm 16lb 24lb Bypass 60 gsm 163 gsm 16lb 43
58. Switches off the LASER diode in the LSU LSU READY TEST CHECK Checks the time of LSU ready NEXT Go to next test LSU HSYNC TEST The time in milliseconds will be displayed after approx imately 10 seconds The LSU ready time will include 500 milliseconds stabilisation time LSU HSYNC TEST CHECK Checks the time of the LSU HSYNC Horizontal Synch NEXT Go to the next test LSU MOTOR TEST Work Centre M20 Family March 2004 6 3 General Procedures and Information GP 1 Table 1 Test Map during service manufacturing use only Test No Test Items Description Setting Description Setting Description 2 SENSOR TEST CHECK Monitors the status of the Paper Path Sensors and NEXT Go to the top level of Engine test mode Interlock 1 Active 0 Inactive Refer to Table 2 Sensor description for details 3 SCF MOTOR TEST ON Runs the Second Cassette Feeder SCF Motor OFF Stops the SCF Motor SCF SOLENOID TEST ON Energizes the Second Cassette Feeder SCF Sole OFF De energizes the SCF Solenoid noid 300ms timeout SCF EMP INST CHECK CHECK Checks if the Second Tray is installed Monitors the NEXT Go to the next test SCF MOTOR TEST Second Cassette Feeder SCF Paper Empty Sensor 4 OPC FUSE STATE CHECK Checks for a new OPC Fuse Compares against previ NEXT Go to the next test OPC FUSE ous known state during warm up OPC FUSE CHECK CHECK Di
59. aen 5 22 PE 8 25 Pickup Assembly aen rine eher hr inen 5 23 PL 9 Xerographics PL 9 10 Toner Drum Cartridge amp 2 5 24 PL 10 Fusing and Copy Print Transportation P 10 10 Exit Assembly iren er heeft eere e veneer sees 5 25 PL 14 Scanner PL 14 10 ELA HOU Scanner Assembly 1 Of 2 sse 5 26 PL 14 11 ELA HOU Scanner Assembly 2 5 27 PL 31 Maintenance Installation Removal Kits PL 31 10 Maintenance Installation Removal Kits 5 28 Part Number Index EE 5 29 2004 Parts List Work Centre M20 Family 5 1 Parts List March 2004 5 2 Work Centre M20 Family PL 1 10 SMPS and PBA Main Item 1 OIN 10 11 12 18 19 20 21 22 Part 152N11548 152N11550 140N62860 140N62859 140N62862 140N62861 140N62864 144N00128 144N00129 140N62876 140N62879 140N62878 140N62877 140N62863 140N62871 152N11551 140N62875 152N11557 117N01602 117N01313 117N01620 Description IPR Shield SMPS Upper Not 546 8 Spared REP 1 1 19116 18 CBF Power Switch Grey CBF Harness Power HVPS SMPS HVPS XE REP 1 1 SMPS HVPS NASG XCL REP 1 1 ELA HOU Shield Main Lower Not Spared Shield P Main Lower P O PL 1 10 Item 5 CBF Harness LIU GND P O PL 1 10 Item 5 CBF Harness Inlet P O PL 1 10 Item 5 PBA MAIN C20 M20 REP 1 2 PBA MAIN M20i REP 1 2
60. alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones WARNING Take care during this procedure Sharp edges may be present that can cause injury DANGER Ex cuter cette proc dure avec pr caution La pr sence de bords tranchants peut entrainer des blessures AVVERTENZA procedere con cautela durante questa procedura Possono essere pre senti oggetti con bordi taglienti pericolosi VORSICHT Bei diesem Vorgang vorsichtig vorgehen damit keine Verletzungen durch die scharfen Kanten entstehen AVISO Tenga cuidado al efectuar este procedimiento Puede haber bordes afilados que podr an producir lesiones REP 2 1 ELA HOU
61. causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones WARNING Take care during this procedure Sharp edges may be present that can cause injury DANGER Ex cuter cette proc dure avec pr caution La pr sence de bords tranchants peut entrainer des blessures AVVERTENZA procedere con cautela durante questa procedura Possono essere pre senti oggetti con bordi taglienti pericolosi VORSICHT Bei diesem Vorgang vorsichtig vorgehen damit keine Verletzungen durch die scharfen Kanten entstehen AVISO Tenga cuidado al efectuar este procedimiento Puede haber bordes afilados que podr an producir lesiones REP 8 6 ELA HOU Pickup Assembly WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s
62. cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones WARNING Do not touch the fuser while it is hot DANGER Ne pas toucher au four pendant qu il est encore chaud AVVERTENZA Non toccare il fonditore quando caldo VORSICHT Fixierbereich erst ber hren wenn dieser abgek hlt ist AVISO No toque el fusor mientras est caliente 1Q12 Partial Blank Image Not Periodic RAP WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGE
63. cover front assembly Fig 3 M Disconnect the CCD ure 3 and scan harnesses a Disconnect 2 ground harnesses AP 1 0003 A Figure 1 Harness removal ELA HOU side cover 4 Remove 3 securing screws from the rear of the machine Figure 2 assembly MEA unit cover front assembly AP 1 0005 A Figure 3 Opening covers March 2004 Repairs and Adjustments Work Centre M20 Family 4 33 REP 14 1 6 Remove 2 securing screws from the front of the machine Figure 4 1 Lock the ELA HOU CCD module Remove 2 screws AP 1 0006 A Figure 4 Screw removal 2 Remove the ELA HOU 7 Remove the ELA HOU scanner assembly Figure 5 scanner assembly by lift ing from the front and sliding toward the rear AP 1 0007 A Figure 5 ELA HOU scanner assembly removal 8 Remove the 3 screws securing the ELA HOU OPE assembly Figure 6 Repairs and Adjustments March 2004 REP 14 1 4 34 Work Centre M20 Family CAUTION Do not allow the optics cavity to become contaminated Contamination of the optics cavity can cause image quality defects 10 Remove the five screws securing the ELA HOU scan upper assembly Figure 8 1 Remove 3 screws AP 1 0008 A Figure 6 Screw removal qe 9 Remove the ELA HOU OPE assembly Figure 7 Remove 5 screws amp AP 1 0010 A 2 Figure 8 Screw removal Remove the ELA HOU OPE assembly 11 Remove the ELA HOU scan upper assembly Figure 9 A fe So
64. does not warrant or represent that it will notify or provide to such customer any future change to this documentation Customer performed service of equipment or modules components or parts of such equipment may affect whether Xerox is responsible to fix machine defects under the warranty offered by Xerox with respect to such equipment You should consult the applicable warranty for its terms regarding customer or third party provided service While every care has been taken in the preparation of this manual no liability will be accepted by Xerox Europe arising out of any inaccuracies or omissions Xerox Europe Xerox and all identifying numbers used in connection with the Xerox products mentioned in this publication are trademarks of Xerox Other company trademarks are also acknowledged Printed in the United Kingdom Revision Control List Product Title Part Number Revision WorkCentre M20 Family Service Manual 708P87563 March 2004 Documentation compatible with this revision Page Rev Page Rev Page Rev 4 25 03 04 5 26 03 04 6 35 03 04 Compact 708P87562 4 26 03 04 5 27 03 04 6 36 03 04 Supplement hard copy wiring diagrams 708P87565 4 27 03 04 5 28 03 04 6 37 03 04 PDF on CD Hom 22 5 RE REG 708P87564 4 28 03 04 5 29 03 04 6 38 03 04 4 29 03 04 5 30 03 04 6 39 03 04 4 30 03 04 5 31 03 04 6 40 03 04
65. durch die scharfen Kanten entstehen AVISO Tenga cuidado al efectuar este procedimiento Puede haber bordes afilados que podr an producir lesiones REP 14 1 ELA HOU Scanner Assembly WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi Introduction Translation of Warnings March 2004 Work Centre M20 Family onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad p
66. elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efectua tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones WARNING Do not touch the fuser while it is hot DANGER Ne pas toucher au four pendant qu il est encore chaud AVVERTENZA Non toccare il fonditore quando caldo VORSICHT Fixierbereich erst ber hren wenn dieser abgek hlt ist AVISO No toque el fusor mientras est caliente 8 6 Paper Jam 2 Open Close Door RAP WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta March 2004 Work Centre M20 Family Introduction Translation of Warnings tion lectrique L lectricit peut entrainer des blessu
67. explains how the fixed lamp control circuit works Logic unit fuser on sends trig ger current to triac driver PC3 LED then the infrared ray is detected by PC3 photo detector Next YC3 triac is conducted The conducted current sends trigger input to triac SY1 gate At this point SY1 is conducted and AC power is supplied to fixed lamp Lamp is turned on and temperature rises As this fixed lamp control circuit uses the AC voltage and are repeated as the power supply it used two way triac SY1 which has advantage over one way SCR considering the price size and reliability The triac s gate can be triggered by either forward or reverse signal Once triac is turned on it will not be controlled by gate signal but will be continuously on until the current between major terminals decreases below the holding current In other words you cannot turn it off with reverse signal unlike SCR This property is called current voltage threshold rise rate com mutation dv dt In AC power control application triac has to turn off conduction in each zero crossing or switch it twice in each cycle This switching operation is called commutation It is possible to turn off the triac at the end of half cycle by eliminating the gate signal when the load current IL is gained at the level equal to or lower than holding current When triac commutes off line the direction of the voltage of the both ends of triac will be reversed and increase up to the max
68. flat and clean surface 3 exit sale date switch off the machine then switch on the machine 4 Only install authorized components 5 Do not forcibly remove plastic components 6 Ensure all components in their correct position General Procedures and Information March 2004 GP 9 GP 10 6 16 Work Centre M20 Family GP 11 Machine Specifications Specifications are correct at the time of publication Machine specifications are subject to change without notice Refer to the following tables for machine specifications Table 1 General Specifications Table 2 Printer Specifications Table 3 Facsimile Specifications M20i Only Table 4 Scanner Specifications Table 5 Copy Specifications Table 6 Telephone Specifications M20i Only Table 7 Consumables Table 8 Fuser Operating Temperatures Table 9 HVPS Output Table 1 General specifications Item Description Type of Unit Desktop Operation System Win98 ME NT 4 0 2000 XP Duplex Printing Yes Default Printing Speed Simplex 22ppm for 8 5x11 21ppm for A4 Duplex 13ppm for 8 5x11 12 6ppm for A4 Interface IEEE1284 ECP USB without HUB mode CPU 120 MHz ARM946ES Table 1 General specifications Item Description Memory 4 Mbyte for flash Memory 32 Mbyte SDRAM Table 2 Printer specifications Item Description Standard Recommendation ITU T Group3 ITU International Telecommunications Union Appli
69. for the acronym list and cross reference lists of more com monly recognised part names Refer to Wiring Diagram 5 Perform the following 1 Open the DADF and clear the jam Raise the duplex guide Ensure the area is clean and free from paper Ensure the customer is not attempting to feed documents that are outside specification Refer to GP 21 DADF Document Feeding Specifications Clean the DADF pickup roller PL 5 13 Item 17 and MEA unit DADF rubber PL 5 13 Item 9 Check the following sensors PBA SUB DOC width PL 5 13 Item 10 PMO actuator REGI PL 5 10 Item 10 SUB gate PL 5 14 Item 10 PBA SUB REGI PL 5 10 Item 9 PBA SUB exit open PL 5 13 Item 11 NOTE It is not possible to test the DADF sensors using GP 1 Engine Test Mode Entry If necessary install a new ELA HOU DADF SUB PL 5 10 Item 31 Status Indicator RAPs 5 1 5 2 2 4 March 2004 Work Centre M20 Family 6 1 LSU Error RAP The machine has detected that the LSU unit has not come to the ready state at the expected time Procedure WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury WARNING Avoid exposure to laser beam Invisible laser radiation NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more co
70. identification an acronym list and cross reference lists of more commonly recogn ised part names have been included in the manual Refer to GP 20 Acronyms and Parts Description List Organization The service manual is the document used as the primary information source for repairing and maintaining this family of products and is available as EDOC on a CDROM or in printed for mat The information within the manual is divided into an introduction and eight other sections Section 1 Service Call Procedures This section is used to start and complete a service call The procedures in this section will either direct you to a Repair Analysis Procedure RAP or identify a faulty component or sub assembly Section 2 Status Indicator Repair Analysis Procedures This section contains the Repair Analysis Procedures RAPs and checkouts necessary to diagnose isolate and repair faults other than image quality faults Section 3 Image Quality This section contains the Image Quality Repair Analysis Procedures IQ RAPs checkouts and setup procedures necessary to diagnose isolate and repair image quality faults Section 4 Repairs Adjustments This section contains the instructions for removal replacement and adjustment of parts within the machine Section 5 Parts List This section contains the detailed and illustrated spare parts list Any part that is spared or that must be removed to access a spared part is illustrated Section 6 Ge
71. infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones WARNING Take care during this procedure Sharp edges may be present that can cause injury DANGER Ex cuter cette proc dure avec pr caution La pr sence de bords tranchants peut entrainer des blessures AVVERTENZA procedere con cautela durante questa procedura Possono essere pre senti oggetti con bordi taglienti pericolosi VORSICHT Bei diesem Vorgang vorsichtig vorgehen damit keine Verletzungen durch die scharfen Kanten entstehen AVISO Tenga cuidado al efectuar este procedimiento Puede haber bordes afilados que podr an producir lesiones WARNING Do not remove the DADF while the DADF is lowered In the lowered position the coun terbalance springs are compressed and can cause injury when released DANGER Ne pas retirer le CAD alors qu il est en position basse Dans cette position les ressorts compensateurs sont compress s et peuvent entrainer des blessures s
72. is complete 5 Click the Refresh icon and check what has been updated DOS Command mode Use this method if the machine can be connected to a PC via a parallel port only 1 The following files are required down bat down com bin fprt exe and Rom File file name for upgrade Save the files in the same folder 2 Open the DOS command window 3 In the DOS window input as below and push the enter key It will then automatically upgrade There are two commands for which can be used Use the correct command depending on the condition of machine a When the machine is in idle condition use down rom file b When the machine is in idle condition TECH MODE MAINTENANCE FLASH UPGRADE LOCAL use fprt rom file NOTE Do not turn off the power during the upgrade process Remote FAX Use this is a function to update a remote machine that has a fax A local fax machine that has the latest firmware can send files to the remote fax machine through the telephone line NOTE To perform this procedure successfully the sending and receiving machines must be identical configurations 1 Operate the local fax machine that has the latest firmware to prepare for the upgrade TECH MODE MAINTENANCE FLASH UPGRADE REMOTE 2 Input the fax number of the machine to be upgraded NOTE Several machines can be upgraded at the same time In this case enter the fax number of each machine 3 After pressing the enter button the firmware file will be
73. lesiones REP 10 1 ELA HOU Fuser Assembly WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les March 2004 Work Centre M20 Family Introduction Translation of Warnings pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricita pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones WARNING Take care during this procedure Sharp edges m
74. mientras efectua tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones IQ7 Dark Image RAP WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb Introduction Translation of Warnings March 2004 Work Centre M20 Family ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede
75. o es SS 1 Disconnect CN2 AP 1 0009 A Figure 7 ELA HOU OPE assembly removal March 2004 Repairs and Adjustments Work Centre M20 Family 4 35 REP 14 1 2 Remove the ELA HOU scan upper assembly 1 Remove 2 screws 2 1 Lift the left hand side of the A S 222 material dummy upper assem Unhook both sides of the bly then slide it to the left to ELA HOU scan upper lt assembly 1 0011 1 0012 Figure 9 ELA HOU scan upper assembly removal Figure 10 A S material dummy upper assembly removal 12 Remove the A S material dummy upper assembly Figure 10 13 Remove the IPR channel base frame Figure 11 Remove 4 screws then the IPR channel base frame AP 1 0013 A Figure 11 IPR channel base frame removal 14 Remove the PMO cover dummy lower Figure 12 Repairs and Adjustments March 2004 REP 14 1 4 36 Work Centre M20 Family 1 1 Remove the cover M CCD cable Remove 5 screws 2 Lift the PMO cover o S 0 a ge og P EG ES 2 MA AP 1 0015 A Figure 13 Cover M CCD cable removal C Y 16 Remove the CBF signal CCD FFC Figure 14 V Q WS ASS ny 1 0014 Figure 12 PMO cover dummy lower removal 15 Remove the cover M CCD cable Figure 13 o o 2 E a CBF signal AP 1 0016 A Figure 14 CBF signal CCD FFC remov
76. original power supply is faulty inform the customer 2 Disconnect the power cord from the power outlet and the machine Check the continuity of the power cord If necessary install a new power cord PL 1 10 Item 20 3 Disconnect the inline connector between the CBF harness inlet PL 1 10 Item 8 and the CBF power switch grey PL 1 10 Item 3 Measure the AC supply voltage between pins 1 and 2 on the inline connector Repair the wiring as necessary 4 Disconnect CON1 on the SMPS HVPS Measure the AC supply voltage between pins 1 and 3 on the connector If necessary install a new CBF power switch grey PL 1 10 Item 2 5 Check the voltages at both sides of the fuses the SMPS HVPS Fuse F1 110V NASG or 220 240V XE Fuse F2 110V NASG or 220 240V XE Fuse F3 5VDC If necessary install a new SMPS HVPS PL 1 10 Item 1 NOTE Fuses F1 F2 and F3 are not spared 6 Switch off the power to the machine Disconnect all harnesses on the SMPS HVPS other than CON1 and CON101 7 Switch on the power to the machine If the machine switches on perform step 8 If the machine fails to switch on perform step 9 8 Sequentially reconnect each connector onto the SMPS HVPS When the faulty circuit has been identified repair the wiring or install components as necessary 9 Reconnect all connectors to the SMPS HVPS Disconnect all connectors on the PBA main PL 1 10 Item 9 Sequentially reconnect each connector onto
77. pericolosi VORSICHT Bei diesem Vorgang vorsichtig vorgehen damit keine Verletzungen durch die scharfen Kanten entstehen AVISO Tenga cuidado al efectuar este procedimiento Puede haber bordes afilados que podr an producir lesiones REP 4 4 ELA HOU Frame Main Assembly WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efectua tareas que no necesitan energ a el ctrica La electricidad
78. pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones 9 2 Non Xerox Toner Cartridge RAP WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interv
79. puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones WARNING Take care during this procedure Sharp edges may be present that can cause injury DANGER Ex cuter cette proc dure avec pr caution La pr sence de bords tranchants peut entrainer des blessures AVVERTENZA procedere con cautela durante questa procedura Possono essere pre senti oggetti con bordi taglienti pericolosi VORSICHT Bei diesem Vorgang vorsichtig vorgehen damit keine Verletzungen durch die scharfen Kanten entstehen AVISO Tenga cuidado al efectuar este procedimiento Puede haber bordes afilados que podr an producir lesiones REP 5 1 ELA HOU DADF WARNING Introduction Translation of Warnings March 2004 Work Centre M20 Family Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare
80. senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efectua tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones 8 5 Paper Jam 1 Open Close Door RAP WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L
81. t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones WARNING Do not work in a confined space 1m 39 inches space is needed for safe working DANGER Ne pas travailler dans un espace restreint 1 m tre d espace est n cessaire pour un d pannage en toute s curit AVVERTENZA Non lavorare in uno spazio limitato necessario uno spazio di almeno un metro attorno alla macchina per la sicurezza dell operatore VORSICHT Nur mit ausreichendem Bewegungsspielraum 1 m arbeiten AVISO No trabaje en un espacio reducido Se necesita 1 metro de espacio para trabajar con seguridad SCP 5 Subsystem Maintenance WARNING Switch off the electricity to the machine Disconnect the power cord from the cus tomer s supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit
82. the PBA SUB OPE joint Figure 1 Disconnect the CBF signal Remove 4 screws then OPE FFC the PBA SUB OPE joint AP 1 0038 A Figure 1 PBA SUB OPE joint removal 3 Remove the PBA SUB OPE Figure 2 March 2004 Work Centre M20 Family Repairs and Adjustments REP 1 2 REP 2 1 2 Carefully remove the PBA SUB OPE 1 Remove the rubber contacts 1 SE AP 1 0040 A Remove 13 screws e Figure 3 Rubber contacts removal AP 1 0039 A 5 Remove the key pads Figure 4 Figure 2 PBA SUB OPE removal 4 Remove the rubber contacts Figure 3 Remove the key pads 1 0041 Figure 4 Key pads removal Repairs and Adjustments March 2004 REP 2 1 4 6 Work Centre M20 Family 6 If installed remove the cover E mail Figure 5 1 Remove the cover E mail by gently squeezing together the locking tabs located on the underside of the assembly 8 Remove the key plate Figure 7 1 Remove key plate AP 1 0044 A Figure 7 Key plate removal AP 1 0042 A 2 9 Remove the E mail key pad Figure 8 Figure 5 Cover E mail removal 7 Remove PBA SUB E mail Figure 6 1 ae Remove 5 screws then the 1 PBA SUB E mail Remove E mail key pad AP 1 0045 A Figure 8 E mail key pad removal AP 1 0043 A Figure 6 PBA SUB E mail removal Replacement Replacement is the reverse of the removal procedure March 2004 Repairs and Adjustments Work Centre M20 Family REP 2 1
83. the PBA main If the faulty circuit is identified repair the wiring or install components as necessary If the machine still fails to switch on install the following components as necessary CBF harness power HVPS PL 1 10 Item 3 PBA main PL 1 10 Item 9 If the fault is still present install a new SMPS HVPS PL 1 10 Item 1 March 2004 Work Centre M20 Family 2 3 Status Indicator RAPs 1 1 5 1 Load Document RAP The machine has detected a no document loaded when a document is required Procedure WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names Refer to Wiring Diagram 5 Perform the following 1 Load a document and try again 2 Check that the PMO actuator DOC moves freely PL 5 13 Item 12 3 necessary install a new ELA HOU DADF SUB PL 5 10 Item 31 5 2 Document Jam RAP The machine has detected a jammed document in the DADF Procedure WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury NOTE If necessary refer to GP 20
84. then ickup AE AP 1 0076 A Ree the solenoid pickup Figure 2 MEA unit guide CST PA assembly removal 1 0074 5 Remove the solenoid pickup and gear pickup Figure 3 Figure 3 Solenoid and gear pickup removal CAUTION Do not damage the IPR GND input when removing the ELA HOU pickup plus assembly 6 Remove the ELA HOU pickup plus assembly Figure 4 Repairs and Adjustments March 2004 REP 8 6 4 28 Work Centre M20 Family 1 Unclip the sensor cover Release the harnesses Remove the PMO guide A paper out SA 3 7 Remove 5 screws then the ELA HOU pickup IPR GND plus assembly input AP 1 0077 A Figure 4 ELA HOU pickup plus assembly removal Replacement Replacement is the reverse of the removal procedure When reinstalling the MEA unit guide CST PA assembly ensure the PMO sheet guide paper PL 4 25 Item 11 and the mylar strips PL 4 25 Item 12 are not damaged REP 10 1 ELA HOU Fuser Assembly Parts List on PL 9 10 Removal WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury WARNING Take care during this procedure Sharp edges may be present that can cause injury WARNING Do not touch the fuser while it is hot CAUTION Before performing this procedure refer to General Disassembly Precautions GP 10 NOT
85. to send interrupt to the CPU then it directly sends the data to DRAM by IOCS4 amp DRAMA 11 SIGNAL through DRAMD 24 31 SRAM 1MByte SRAM K6F1008U2C It stores a variety of option data FAX Transceiver General This circuit processes transmission signals of modem and between LIU and modem Modem U44 FM336 is a single ship fax modem It has functions of DTMF detection and DTMF signal pro duction as well as functions of a modem TX A1 2 is a transmission output port and RX IN is a received data input port POR signal controlled by MFP controller U3 ARM946ES can initial ize modem UM RST without turning off the system 00 07 are 8 bit data buses RSO RS4 sig nals to select the register in modem chips RS and WR signals control READ and WRITE respectively IRQ is a signal for modem interrupt Transmission speed of FM336 is supported up to 33 6k The modem is connected to LINE through transformer directly refer to Figure 4 1 gt 1 FM336 MODEM FAX TX RX CES 018 gt falling edge of the last WE signal 1 WER KZ 4227 Matching dE Transformer T2 I SS te 17 MAIN LIU PBA Wo 2 bon i AP 8 0091 A Figure 4 Fax transceiver AP 8 0088 A Figure 3 BYTE timings for write operations March 2004 General Procedures and Information Work Centre M20 Family GP 13 GP 14 Scanner Operation Purpose To give inform
86. 04 1 2 Work Centre M20 Family SCP 1 Initial Actions Initial Actions are used to gather information on the machine performance The Service Call Procedures section is used to identify a suspected problem with the machine Start a service call with this procedure and end with SCP 6 Final Actions Also refer to SCP 7 Machine Features Procedure WARNING Switch off the electricity to the machine Disconnect the power cord from the cus tomer s supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury WARNING Do not work in a confined space 1m 39 inches space is needed for safe working NOTE Ignore any references in this manual to options not installed on the machine 1 Take note of symptoms or error messages 2 Ask the operator to describe or demonstrate the problem 3 Make sure that a power cord is connected to the wall outlet and to the machine b Documents are not loaded in the DADF or on the document glass c Paperis loaded correctly and all paper trays and covers are closed d If installed the telephone line cable is connected correctly between the line socket and the wall jack e If installed the telephone line is good f H installed the USB cable parallel printer cable or network connection is installed correctly 4 If available check the machine service log book for any previous actions that may be rel evant to the call 5
87. 15 Figure 12 Preparation emove the unit guide pickup assembly Figu 15 Remove the guide M scan assembly Figure 13 March 2004 Repairs and Adjustments Work Centre M20 Family REP 5 1 2 Remove the MEA unit guide pickup assembly Remove 3 screws AP 1 0033 A Figure 15 MEA unit guide pickup assembly removal 18 Remove the guides Figure 16 2 Remove 3 screws then the guide M duplex inner 1 Remove 3 screws then the guide M duplex lower AP 1 0034 A Figure 16 Guide removal 19 Remove the cover P gear Figure 17 Repairs and Adjustments REP 5 1 March 2004 4 18 Work Centre M20 Family 2 Remove 1 E clip and 2 the MEC clutch Remove 3 screws then the ELA small duplex HOU DADF motor assembly Disconnect the MEC clutch small duplex inline connector AP 1 0036 A Figure 18 ELA HOU DADF motor assembly removal 21 Remove the ELA HOU duplex motor assembly Figure 19 Remove 3 screws disconnect 2 ground harnesses Disconnect the MEC clutch then remove the cover P gear 1 small registration inline con nector Disconnect CN4 AP 1 0035 A Figure 17 Cover P gear removal 20 Remove the ELA HOU DADF motor assembly Figure 18 Remove 3 screws then the ELA HOU duplex motor assembly AP 1 0037 A Figure 19 ELA HOU duplex motor assembly removal Replacement 1 Replacement is the reverse of the removal procedure When reconnecting t
88. 16 Duplex 60 gsm 75gsm 16lb 2010 General Procedures and Information March 2004 GP 21 GP 22 6 40 Work Centre M20 Family GP 23 Service Log For Edoc a PDF version is available on the CD Rom In File Manager or Explorer select the CD ROM drive g directory If is not the CD ROM drive substitute the drive letter for the CD ROM drive Double click on the folder service log For hardcopy make a copy of this page Double click on the PDF file called Service log pdf Service Log Use this service log to record all service procedures Figure 1 ADF OPTICS FUSER XERO PAPER FEED MISC Meter eee LLL LI eee eee eee Subsystem Adjustment Installed Tag Date 5 2 2 2 T 5 A T Account Data Problem H em Subsystem lem Subsystem H em Subsystem H H Subsystem AP 1 0138 A Figure 1 Service log March 2004 General Procedures and Information Work Centre M20 Family 6 41 GP 23 General Procedures and Information March 2004 GP 23 6 42 Work Centre M20 Family 7 Wiring Data Wiring Diagrams sn p ORAE ERIT 7 3 2004 Wiring Data Work Centre M20 Family 7 1 Wiring Data March 2004 7 2 Work Centre M20 Family Wiring Diagrams Purpose Wiring diagrams are an aid to trace wiring faults Wiring Diagrams are used to complement the fault analysis information contained in the relevant R
89. 2020202020202020202020 DIS 00000000 01110111 00010111 00100010 NSF 61005020003380140200001302090018010000 CSI 2020202020202020202020220202020220202020 DIS 00000000 01110111 00010111 00100010 TSI 2020202020202020202020202020202020202020 Dcs 00000000 01100001 00010101 00000000 FTT TSI 2020202020202020202020202020202020202020 Dcs 00000000 01100001 00010101 00000000 NDNANDAANDAANNNNNN ing or receiving operation Use this list to check for send and receive errors If a communication error occurs while the machine is in TECH mode the protocol list will print automatically Figure 1 Figure 1 Protocol list Fax Phonebook Lists all telephone numbers that have been stored in the machine Fax TX AP 1 0083 A This journal shows specific information concerning transmission activities the time and dates of up to 40 of the most recent transmissions Fax RX This journal shows specific information concerning reception activities the time and dates of up to 40 of the most recent receptions Schedule Jobs This list shows specific information on the documents currently stored for delayed transmis sion It provides the operation number starting time type of operation etc System Data This list provides a list of the user system data settings and tech mode settings Fax TX Confirm Displays the result of the last send operation General Procedures and Information GP 7 March 2004 6 14 Work Centr
90. 20i service mode settings Function Item Option Select Country UK Greece Turkey Ukraine Slovenia Russia Yugoslavia Australia HongKong NewZealand SouthAfrica Israel Korea K Xerox China India Asia STD Malaysia Singapore USA Canada Brazil Chile Columbia Mexico Argentina Peru Ger many France Austria Switzerland Italy Spain Portugal Norway Finland Sweden Netherlands Denmark Belgium Hungary Poland Czech Romania Bulgaria Ire land USB Mode Fast Slow Device Name Fax ID Date amp Time 00 00 0000 00 00 AM Clock Mode 12 24 Hours Toner Save On Off Discard Size 0 30 MM Fax Setup Lighten Darken L D Resolution Standard Fine Superfine Receive Mode Fax Tel Ans Fax Fax Duplex Off Long Edge Short Edge Speed Dials New Edit Delete Group Dials New Edit MSG Confirm On Err On Off Auto Reduction On Off Prefix Dial Fax Auto Report On Off ECM mode On Off Redials 0 13 Ring to Answer 1 7 Redial Term 1 15 Ringer Low Med High Off Junk Fax Setup On Off Secure Receive On Off Print Fax Tray Tray 1 Tray 1 amp Tray 2 All Dial Mode GP 4 Tone Pulse System Admin Password Protect No Yes Tools Department Enter Master Code Auxiliary Access On Off Work Centre M20 Family March 2004
91. 2K Tray 2 feed motor PL 7 16 Item 25 PBA SUB DOC width Document width sensors PL 5 13 Item 10 PBA SUB exit open DADF exit assembly open sensor PL 5 13 Item 11 MEA Unit Pickup Feed roll assembly PL 5 13 Item 17 PBA SUB gate Scan exit sensor PL 5 14 Item 10 LSU Refer to Table 6 Table 6 LSU Part name Commonly known as PL Ref Unit LSU ROS PL 6 10 Item 1 CBF Harness LSU ROS power communications harness 6 10 Item 2 Fan DC cardinal ROS cooling fan PL 6 10 Item 3 Cassette Assembly Refer to Table 7 Table 7 Cassette assembly Part name Commonly known as PL Ref Mec cassette assembly Tray 1 assembly PL 7 10 Item 1 PMO cover cassette Tray 1 front cover PL 7 10 Item 5 PMO Guide rear Left hand paper guide PL 7 10 Item 8 Guide side CST Front paper guide PL 7 10 Item 9 Guide side handle Front paper guide handle PL 7 10 Item 17 Side Cover Assembly Refer to Table 9 PBA SUB DADF DADF main PWB PL 5 11 Item 19 PBA SCF Tray 2 PWB PL 7 16 Item 3 MEA unit cover exit assembly DADF exit assembly PL 5 12 Item 1 CBF harness SCF 8P Tray 2 IOT power communications har PL 7 15 Item 4 MEA unit support pickup assembly Feed roll assembly support PL 5 13 Item 1 ness MEA unit guide pickup assembly Feed assembly PL 5 13 Item 5 MEA unit lower SCF2 Tray 2 paper f
92. 4 March 2004 Work Centre M20 Family Repairs and Adjustments REP 8 4 3 Remove the ELA HOU MP assembly Release the harness Unclip the ELA HOU MP assembly by releasing the two clips from under the machine REP 8 5 MEA Unit Feed Roller Assembly Parts List on PL 8 15 Removal WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury WARNING Take care during this procedure Sharp edges may be present that can cause injury CAUTION Before performing this procedure refer to General Disassembly Precautions GP 10 NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names Remove the ELA HOU MP assembly REP 8 4 2 Pull out the tray 1 cassette assembly approximately 100mm 4 inches 3 Prepare to remove the MEA unit feed roller assembly Figure 1 1 SESS Remove 3 screws Figure 4 ELA HOU MP assembly removal Replacement Replacement is the reverse of the removal procedure AP 1 0072 A Figure 1 Preparation 4 Remove the MEA unit feed roller assembly Figure 2 Repairs and Adjustments March 2004 REP 8 4 REP 8 5 Work Centre M20 Family 1 Remove the MEA unit feed roller assembly REP 8 6 ELA HOU Pickup Assembly Parts List on PL 8 25 Removal W
93. 5 1V 24 0V 12 0V 2 Rated Output Voltage 5 1V 24 0V 12 0V 3 Rate Output Current 2A 2 5A 0 8A 4 Maximum Load Current 2 5A Continued 3 0A Continued 0 8A Continued and Load Pattern 5 Load Change Range 0 5 2 0A 0 1 0 3A 0 1 0 8A 6 Rate output voltage For 5 1V5 24 0V10 12V5 rated I O 4 84 5 35V 21 60 26 40V 11 40 12 60V 7 1 Total Output Volt Including All Including All Including All age Deviation Input 5 1V5 24 0V10 12V5 Load Temp Aging 2 4 84 5 35V 21 60 26 40V 11 40 12 60V Dynamic Input Change Including Set Error Including Set Error Including Set Error 3 Dynamic Load Change 8 Refer to ripple amp noise 150mVp porless 500mVp p or less 200mVp p or less 27 9 Refer to load short and Must not ignite or Output voltage Must not ignite or overload protection 23 generate smoke must shutdown generate smoke Refer to load short and when output within the range of when output overload protection 23 shorted for 5 sec 3 5 6 5 shorted for 5 sec AC Input Stage AC input power path is consist of the fuse F1 for AC current limit the varistor TNR1 for by passing high voltage surge the discharge resistor R1 the AC impulse noise filtering circuit C2 C4 LF1 the common mode grounding circuit C5 C6 the second noise filter C7 LF2 and the thermistor TH1 When the power is turned on TH 1 limits current by it s high resistance and when it s tempera tu
94. 6 Refer to Wiring Diagram 1 Go to GP 1 Engine Test Mode Entry Perform test number 5 to check the MHV ADC and THV ADC read values As necessary perform the following Check the contact springs supplying the voltages to the ELA OPC unit set and the wiring to the SMPS HVPS Install a new ELA OPC unit set PL 9 10 Item 1 March 2004 Image Quality Work Centre M20 Family 3 5 IQ5 IQ6 Clean any contamination on the ELA toner unit set If necessary install a new ELA IQ7 Dark Image RAP toner unit set PL 9 10 Item 2 7 Ensure the transfer roller contacts which are housed within the PMO housing terminal MC2 are not deformed If necessary install a new ELA HOU frame main assembly PL Use this RAP when the machine produces dark images in all modes 4 15 Item 1 Procedure NOTE The PMO housing terminal MC2 is not d WARNING The housing termina is not spared ee f f p Switch off the electricity to the machine Disconnect the power cord from the customer 8 Install a new SMPS HVPS PL 1 10 Item 4 supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names Perform the following 1 Ensure that the paper tray settings match the paper or media size in the trays 2 Goto GP 6 Maintenance and perform the Adjust Shading procedure 3
95. 7 03 04 5 18 03 04 6 27 03 04 xxiv 03 04 3 2 03 04 4 18 03 04 5 19 03 04 6 28 03 04 3 3 03 04 4 19 03 04 5 20 03 04 6 29 03 04 1 1 03 04 3 4 03 04 4 20 03 04 5 24 03 04 6 30 03 04 1 2 03 04 3 5 03 04 4 21 03 04 5 22 03 04 6 31 03 04 1 3 03 04 3 6 03 04 4 22 03 04 5 23 03 04 6 32 03 04 1 4 03 04 3 7 03 04 4 23 03 04 5 24 03 04 6 33 03 04 1 5 03 04 3 8 03 04 4 24 03 04 5 25 03 04 6 34 03 04 Introduction ThS Manuals o acest Aantal Ee cuit pectet iii Warnings Cautions And Notes Safety Preca utiohs 2 tec e i v Health and Safety Incident vi Translation of Warnings vii March 2004 Introduction Work Centre M20 Family i Introduction March 2004 ii Work Centre M20 Family About This Manual Publication Comments Sheet This manual is part of a multinational service documentation system that is structured in the Comment Sheets provided at the tear otthe hardcopyimanual standard Xerox service manual format This manual is based on a Japanese original The part names used throughout do not comply with the standard Xerox part naming convention Because part names have been molded on to some plastic components and may also be embedded in the software the part names have not been changed To aid part
96. 8 25 Item 16 Rubber pickup small 50k feeds PL 8 25 Item 17 Rubber roller pickup 50k feeds PL 7 15 Item 9 Rubber roller pickup S 50k feeds PL 7 15 Item 10 Transfer roller 100k prints PL 8 10 Item 33 ELA HOU fuser assembly 100k prints PL 9 10 Item 4 ELA toner unit set 8k prints PL 9 10 Item 2 ELA OPC unit set 20k prints PL 9 10 Item 1 Complete the following if a fault is identified return to SCP 4 Fault Analysis Perform the end of call subsystem maintenance actions SCP 5 Subsystem Maintenance Exercise the machine in all modes making copies and or prints from all trays utilising the DADF and the document glass If a fault message is displayed or some other problem is evident go to SCP 4 Fault Analysis Make a proof copy or print of a customer document If any of the customers selections were changed return them to the customers preferred settings refer to GP 2 Mark off any hardware software options and modifications installed and or enabled on the Tag matrix card At the first service and at any subsequent service where changes are made or options are added print the configuration report and store it in the plastic folder along with the machine log book Discard any previous versions of the configuration report that may be in the plastic folder Remove and destroy any copies of test patterns Complete the machine service log book refer to GP 23 Service Log Ensure the machine and service area are cle
97. ADF on a solid flat sur face 2 Tilt the ELA HOU DADF forward then remove Pull up the ELA HOU DADF AP 1 0021 A Figure 2 ELA HOU DADF removal 5 Open the MEA unit cover open Figure Open the MEA unit cover AP 1 0022 A Figure 3 MEA unit cover open 6 Remove the front cover Figure 4 Remove 1 screw 2 Unclip the front cover then remove the front cover AP 1 0023 A Figure 4 Front cover removal 7 Remove the rear cover Figure 5 Repairs and Adjustments REP 5 1 March 2004 Work Centre M20 Family 9 Prepare to remove the MEA unit cover open Figure 7 2 Remove 2 screws then the rear cover NOTE Removing the 4 screws that secure the guide M scan assembly will ease the removal of the MEA unit cover open 1 Remove 4 screws Release the PMO stopper exit AP 1 0024 A Figure 5 Rear cover removal 8 Remove the MEA unit TX stacker Figure 6 AP 1 0136 A Figure 7 Preparation 10 Remove the MEA unit cover open Figure 8 Remove the MEA unit TX stacker Ensure the harness is released through the hole in the frame Disconnect CN3 AP 1 0025 A Figure 6 MEA unit TX stacker removal March 2004 Repairs and Adjustments Work Centre M20 Family 4 15 REP 5 1 2 Open the MEA unit cover open 3 Align the flat on the rear pivot with the slot in the frame Remove the MEA unit cover open from the rear pivo
98. AP NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names Introduction The main PBA connections are in the following wiring diagrams Input power and power distribution Wiring Diagram 1 PBA main ELA HOU platen assembly and PBA foreign device interface Wiring Diagram 2 PBA main unit LSU exit assembly ELA HOU drive assembly and ELA HOU pickup assembly tray 1 Wiring Diagram 3 PBA main ELA HOU frame main assembly and ELA HOU MP assembly Wiring Diagram 4 DADF Wiring Diagram 5 Tray 2 module Wiring Diagram 6 The wiring diagrams have the following features The connections on the PWBs are in numerical sequence where possible The complete component to PWB wiring is shown All interconnecting connectors shown in part or whole Connectors shown in part have reference to other wiring diagrams as necessary Where necessary components have references to show additional connections to them Relevant parts list references are shown March 2004 Wiring Data Work Centre M20 Family 7 3 Wiring Diagrams Wiring Diagram 1 ELA HOU FRAME MAIN ASSEMBLY PL 4 15 SMPS HVPS PL 1 10 HVPS SPRING ELA OPC UNIT SET PL 9 10 L CBF HARNESS INLINE CBF POWER CONTACTS INLET CONNECTOR SWITCH PL 1 10 i GREY POWERINPUT ACN 4 Pah a ted EN 1 4 7 ___ ACN GRY WI 2 ACL 9 PMO HOUS
99. ARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury WARNING Take care during this procedure Sharp edges may be present that can cause injury CAUTION Before performing this procedure refer to General Disassembly Precautions GP 10 NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names 1 Remove tray 1 cassette assembly PL 7 10 Item 1 2 Remove the ELA HOU drive assembly REP 4 1 1 0073 NOTE For clarity the machine is shown disassembled in Figure 1 Figure 2 and Figure 4 Figure 2 MEA unit feed roller assembly removal 3 Disconnect CN17 24 and CN25 Figure 1 Replacement 1 Replacement is the reverse of the removal procedure Disconnect CN17 CN24 and CN25 AP 1 0075 A Figure 1 Connectors 4 Remove the MEA unit guide CST PA assembly Figure 2 March 2004 Repairs and Adjustments Work Centre M20 Family REP 8 5 REP 8 6 e 3 ee eae Carefully push a 2mm allen key or similar tool into the hole to release the bearing While the bearing is released rotate it 90 degrees to align the clips with the cutouts in the machine frame Slide the bearing forward to remove Remove 2 screws then the MEA unit guide CST 2 1 hRemove thegear Remove 2 screws
100. ATION CIRCUIT SUPPLY DEV BIAS Output Unit Block Diagram AP 1 0122 A Figure 5 Bias output unit block diagram MHV Electrification Output Enable Electrification Output Enable is the electrification output control signal PWM LOW ACTIVE When MHV PWM LOW signal is received Q401 turns on and the steady voltage will be accepted to the non inverting terminal of OP AMP 324 As the voltage higher than the inverting reference voltage of OP AMP which is set to R405 and R406 OP AMP output turns high This output sends IB to the TRANS auxiliary wire through current restricting resistance Q402 via R408 and C403 and Q402 turns on When the current is accepted to Q402 Ic increases to the current proportional to time through the T401 primary coil and when it reaches the Hfe limit of Q402 it will not retain the on state but will tum to off 0402 off TRANS 1 will have counter electromotive force discharge energy to the second ary unit sends current to the load and outputs MHV voltage through the high voltage output enable which is comprised of Regulation circuit Refer to Figure 6 7401 MHV OUTPUT U103 7407 MHV PWM E KI BIAS Supply Dev Blade Output Unit BIAS Electrification Output Enable Electrification Output Enable is the electrification output control signal PWM LOW ACTIVE When BIAS PWM LOW signal is received Q501 turns on and the steady voltage will be accepted to the non inverting ter
101. BA sub MP 3 Enter GP 1 Engine Test Mode Entry Use the sensor test to check the following sensors sensor Install new components as necessary 3 If necessary install new components FD This is the feed sensor part of the PBA SUB feed amp P EMP SEN PL 8 25 PBA SUB MP SEN PL 8 20 Item 24 12 4 PBA main PL 1 10 Item 9 EX This is the PBA SUB exit sensor PL 4 15 Item 22 OB This is the PBA SUB bin full sensor PL 10 10 Item 20 4 Enter GP 1 Engine Test Mode Entry and check that the motor step MCK2 main and the motor DC MCK2 BLDC run Install new components as necessary PL 4 20 5 Rotate the duplex drive gears at the rear of the machine to remove any paper The gears should rotate freely Install new components as necessary PL 8 10 and PL 8 11 6 Disconnect the power cord from the machine and remove the rear cover Manually rotate in a counter clockwise direction the motor DC MCK2 BLDC PL 4 20 Item 4 Observe the PMO roller feed PL 8 15 Item 10 Check that the PMO roller feed rotates when the motor is rotated Install new components as necessary 7 Manually rotate in a counter clockwise direction the motor step MCK2 main PL 4 20 Item 2 Observe the PM roller FD F PL 10 10 Item 16 Check that the PM roller FD F rotate when the motor is rotated Install new components as necessary 8 If necessary install a new PBA main PL 1 10 Item 9 Status Indicator RAPs March 2004 8 2 8 3 2 6
102. Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones 9 6 Toner Low RAP WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incl
103. E If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names 1 Open the ELA HOU side cover assembly PL 8 10 Item 1 NOTE For clarity the ELA HOU side cover assembly is shown removed from the machine in Figure 1 Figure 2 and Figure 3 2 Remove the cover sheet connector Figure 1 1 Remove 1 screw then the cover sheet connec tor AP 1 0080 A Figure 1 Cover sheet connector removal March 2004 Work Centre M20 Family Repairs and Adjustments REP 8 6 REP 10 1 3 Disconnect the fuser connector Figure 2 1 1 Remove 3 screws then Disconnect the fuser the ELA HOU fuser connector assembly AP 1 0082 A AP 1 0081 A Figure 3 ELA HOU fuser assembly removal Figure 2 Fuser connector Replacement 4 he ELA HOU f ly Fi SES QU tuserassembly Figure 3 Replacement is the reverse of the removal procedure Repairs and Adjustments March 2004 REP 10 1 4 30 Work Centre M20 Family REP 10 2 MEC Exit Assembly Parts List on PL 10 10 1 Release the Removal harnesses WARNING Switch off the electricity to the machine Disconnect the power cord from the customer 3 supply while performing tasks that do not need electricity Electricity can cause death or Remove the injury Moving parts can cause injury exit WARNING assembly Take care during this procedure Sharp edges may be present that can cause injury CAUTIO
104. E orc oo Figure 2 Wiring Diagram 2 Wiring Data Wiring Diagrams March 2004 7 5 Work Centre M20 Family Wiring Diagram 3 PBA SUB EXIT SENSOR PL 4 15 ELA HOU FUSER ASSEMBLY PL 9 10 MEC EXIT ASSEMBLY PL10 10 1 1 PBA SUB BIN FULL SENSOR PL 10 10 CARDINAL PBA MAIN VOLTAGE FILTER 3 4 11 24 51 I mt V Tov 5 6 I DMOT START i gt RED 8 9 24VS CN16 DMOT READY RED DMOT CLK RED Figure 3 Wiring Diagram 3 STEP PULSES STEP PULSES STEP PULSES STEP PULSES 24VS 5V THERMISTOR MONITOR 1 THERMISTOR MONITOR 2 5V TONNER TX RED ELA HOU DRIVE ASSEMBLY PL 4 20 CN BLK B 24VS ov 1 RED ov RED ov MOTOR STEP MCK2 MAIN PL 4 20 MOTOR DC 4 MCK2 BLDC PL 4 20 1 ASSEMBLY TRAY 1 8 25 CN1 PBA SUB TONER TX PL 4 15 PBA FEED SENSOR PL 8 25 PBA PAPER EMPTY SENSOR PL 8 25 PBA SUB PTL PL 8 25 TAP 1 0003 A Wiring Data Wiring Diagrams March 2004 7 6 Work Centre M20 Family Wiring Diagram ELA OPC UNIT SET PL 9 10 ELA HOU FRAME MAIN ASSEMBLY 4 PL 4 15 BULKHEAD PBA SUB TERMINAL CONNECTOR PL 4 15 DEV
105. HV SUPPLY NEG VOLT Not to be used ON Switches on negative voltage to the THV Switches off the negative voltage to the THV General Procedures and Information GP 1 March 2004 6 4 Work Centre M20 Family Table 1 Test Map second intervals For actual components tested refer to the following items Test No Test Items Description Setting Description Setting Description THV SUPPLY 1301V Not to be used dur ON Switches on 1301V to the THV Switches off the voltage to the THV ing service manufacturing use only THV ADC READ CHECK Reads and displays the THV ADC value If the ADC NEXT Go to the next test MHV SUPPLY 1350V value is between 1 and 254 inclusive this indicates that the THV value is good If the value is 0 or 255 the display will read Over The Range This indicates problems with the toner cartridge or drum cartridge or their respective contacts 6 Auto TEST NEXT RIGHT KEY Automatically starts test sequence at 2 EXIT STOP KEY Returns to the top level of Engine Test Mode ALL MOTOR CONTROL FUSER MOTOR CONTROL DEV MOTOR CONTROL DUPLEX CONTROL FCF PICKUP CONTROL MP PICKUP CONTROL PTL CONTROL FAN CONTROL FUSER CONTROL LSU MOTOR CONTROL LASER DIODE CONTROL SENSOR DETECT FD CONTROL DEV CONTROL THV NEG CONTROL THV CONTROL MHV ADC READ THV ADC READ
106. ING ELA TONER 1 BLK BLK TERMINAL MC2 UNIT SET 3 3 SE PL 4 15 PL 9 10 1 GRN FUSE F1 FUSE F2 ELA HOU SIDE 1 COVER ASSEMBLY PL 8 10 TRANSFER ROLL PL 8 10 IPR BRACKET ELA HOU FUSER GUIDE A ASSEMBLY SMPS PL 8 11 PL 9 10 FUSE FS HEAT ROLL PBA BIAS BEARING omno PL 9 10 IPR TERMINAL FUSER PL 4 15 fo ELA AUD SPEAKER ens i PL 4 10 CON102 TONE PULSES BEK TONE PULSES 1 0001 Figure 1 Wiring Diagram 1 Wiring Data March 2004 Wiring Diagrams 7 4 Work Centre M20 Family 2 iagram D iring lt food ag 5 bog i 5 mz 8 1 20 Fg E 1 Sen a 18 GE CEES E ad e bog 1214 A uo EE zona 1 gt KE 55 lt o bg gaz m 1405 pog l pag rel zd 1 bog le o e Fog Fog ene a RUTAS EE E o E ae 221 1 ta 2 OE los lz ol o a 22 2 a a a a lt i E 5 5 d oe lt aj ao aja neg ae y aj ala i 1
107. Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones WARNING Take care when measuring AC mains line voltage Electricity can cause death or injury DANGER Prendre des pr cautions lors du relev de la tension de la prise de courant alternatif L lectricit peut entrainer des blessures graves voire mortelles AVVERTENZA Procedere con cautela durante la misurazione della tensione CA della rete L elettricit pu causare infortuni o morte VORSICHT Bei der Netzspannungspr fung stets vorsichtig vorgehen AVISO Tenga cuidado al medir la tensi n de la l nea de alimentaci n de corriente alterna La electricidad puede causar lesiones e incluso la muerte 5 1 Load Document RAP WARNING Switch off the electricity t
108. N Before performing this procedure refer to General Disassembly Precautions GP 10 NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names 1 Remove the ELA HOU scanner assembly perform REP 14 1 steps 1 through 7 2 Open the ELA HOU side cover assembly PL 8 10 Item 1 and the MEA unit cover front assembly PL 4 25 Item 6 3 Prepare to remove the MEC exit assembly Figure 1 1 Disconnect CN6 CN7 CN8 and 2 Remove 3 screws Ensure the rollers are raised AP 1 0053 A Figure 2 MEC exit assembly removal Replacement Replacement is the reverse of the removal procedure 3 Unclip the front of the MEC exit assembly AP 1 0052 A Figure 1 Preparation 4 Remove the MEC exit assembly Figure 2 March 2004 Repairs and Adjustments Work Centre M20 Family 4 31 REP 10 2 REP 10 3 MEA Unit Cover PA Exit Assembly Parts List on PL 4 25 Removal WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury WARNING Take care during this procedure Sharp edges may be present that can cause injury CAUTION Before performing this procedure refer to General Disassembly Precautions GP 10 NOTE If necessary refer to GP 20 for the acronym list and cross reference list
109. NING 82 6mm Heat roller P O ELA HOU fuser PL 9 10 Item 4 Switch off the electricity to the machine Disconnect the power cord from the customer assembly supply while performing tasks that do not need electricity Electricity can cause death or 91 1mm Pressure roller P O ELA HOU fuser PL 9 10 Item 4 injury Moving parts can cause injury assembly NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names Install new components as necessary Perform the following 1 transfer roller pressure may be unbalanced Check the spring pressure at each end PL 8 11 Item 6 and PL 8 11 Item 10 Install new components as necessary 2 Shake the ELA toner unit set to evenly distribute the toner Go to GP 1 Engine Test Mode Entry Perform the Toner State test If necessary install a new ELA toner unit set PL 9 10 Item 2 3 Goto GP 3 Perform the Clean Drum routine If necessary install a new ELA OPC unit drum PL 9 10 Item 1 4 If necessary install a new ELA toner unit set PL 9 10 Item 2 Image Quality March 2004 1Q13 1Q14 3 10 Work Centre M20 Family 1Q15 Horizontal Bands RAP Use this RAP when the image has bands appearing across the process direction An example is shown in Figure 1 Digital Print Digital Printer Digital Printer eee Digita Printer AP 1 0135 A Figure 1 Horizontal bands Procedure WARNING Switch off the electricity to the mach
110. O Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones WARNING Take care during this procedure Sharp edges may be present that can cause injury DANGER Ex cuter cette proc dure avec pr caution La pr sence de bords tranchants peut entrainer des blessures AVVERTENZA procedere con cautela durante questa procedura Possono essere pre senti oggetti con bordi taglienti pericolosi VORSICHT Bei diesem Vorgang vorsichtig vorgehen damit keine Verletzungen durch die scharfen Kanten entstehen AVISO Tenga cuidado al efectuar este procedimiento Puede haber bordes afilados que podr an producir lesiones REP 8 2 MEA Unit Duplex Assembly WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla pres
111. OPE Assembly WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones WARNING Take care during this procedure Sharp edges may be present that can cause injury DANGER Ex cuter cette proc dure avec pr caution La pr sence de bords t
112. PE FFC Not Spared NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more commonly recognised part names AP 8 0002 A March 2004 Parts List Work Centre M20 Family 5 5 PL 2 11 PL 4 10 Base Frame Assembly Item 1 2 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Part 009N01467 017 00212 015 00440 015 00441 030 00606 130 01213 127 07300 152 01991 140 62870 022 01486 Description ELA HOU Base Frame Not Spared Screw Taptite REF PL 31 10 Item 6 Screw Taptite REF PL 31 10 Item 6 Spring ETC Torsion Foot Holder Catch CST MC2 Not Spared IPR Channel Base Frame Not Spared IPR Ground Plate A OPC IPR Ground Plate B Base PMO Base Frame Not Spared PMO Bracket Push DEV Not Spared PMO Bracket Side Open PMO Cover Front Dummy Not Spared ELA M M AUD Speaker Spring ETC DEVE Rear Not Spared CBF Harness OPC GND Not Spared Fan DC Cardinal Spring ETC DEV Front Not Spared Holder M Roller Not Spared Shaft DEV Not Spared IPR Ground Plate SCF Not Spared CBF Harness SCF PBA Air Temperature Screw Taptite REF PL 31 10 Item 6 Solenoid Pickup NOTE 1 If necessary refer to GP 20 for the acronym list and cross reference lists of more commonly recognised part names AP 8 0014 A Parts List March 2004 PL 4 10 5 6 Work C
113. PER ON Runs the Fuser Motor only OFF Stops the Fuser Motor Deve MOTOR TEST BLDC ON Runs the Developer Motor only OFF Stops the Developer Motor FUSER MTR DIR TEST FWD Runs the Fuser Motor forward RVS Runs the Fuser Motor in reverse ALL MOTOR STOP STOP Stops the Developer Motor amp Fuser Motor NEXT Go to next test item FCF SOLENOID TEST FCF 1st Tray SOLENOID TEST ON Energizes the Solenoid on the First Cassette Feeder OFF De energizes the Solenoid on the FCF FCF 200ms timeout MPF MP Tray SOLENOID TEST ON Energizes the Solenoid on the Multi Purpose Feeder OFF De energizes the Solenoid of the MPF MPF 200ms timeout PTL TEST ON Switches on the Pre Transfer Lamp PTL OFF Switches off the PTL FAN TEST ON Runs the Fuser Fan and the LSU fan OFF Stops the Fuser Fan and the LSU Fan motors FUSER CONTROL TEST ON Switches on the Fuser Heater OFF Switches off the Fuser Heater only when the fuser temp is less than the stand by temp FUSER TEMP CHECK CHECK Displays the FUSER ADC VALUE See below for typi NEXT Go to first test in sequence ALL MOTOR TEST cal ADC conversions 112 170C 105 175C 97 180C 90 185C 84 190C 77 195C 71 200C 66 205C 60 210C 55 215C 51 2200 46 225C Refer to GP 11 for the correct fuser operating temperatures 1 LSU MOTOR TEST ON Runs the Polygon Mirror Motor in the LSU OFF Stops the Polygon Mirror Motor in the LSU LASER DIODE TEST ON Switches on the LASER diode in the LSU OFF
114. PL 1 10 091N80201 PL 2 10 140N62861 PL 1 10 091N80202 PL 2 10 140N62862 PL 1 10 091N80203 PL 2 10 140N62863 PL 1 10 091N80204 PL 7 10 140N62864 PL 1 10 091N80205 PL 7 10 140N62865 PL 2 11 098N01724 PL 31 10 140N62866 PL 2 11 106R01047 PL 9 10 140N62867 PL 5 10 106R01048 PL 9 10 140N62868 PL 5 14 110N01041 PL 4 15 140N62869 PL 5 10 113N00364 PL 4 15 140N62870 PL 4 10 113N00365 PL 4 15 140N62871 PL 1 10 113R00671 PL 9 10 140N62872 PL 14 11 115N00354 PL 10 10 140N62873 PL 4 15 117N01313 PL 1 10 140N62874 PL 7 16 117 01602 PL 1 10 140N62875 PL 1 10 117 01605 PL 14 11 140N62876 PL 1 10 117N01620 PL 1 10 140N62877 PL 1 10 120N00392 PL 8 20 140N62878 PL 1 10 Parts List March 2004 Part Number Index 5 30 Work Centre M20 Family Table 1 Part Number Index Part Number Part List 140N62879 PL 1 10 144N00128 PL 1 10 144N00129 PL 1 10 152N01991 PL 4 10 152N01992 PL 7 16 152N11548 PL 1 10 152N11549 PL 6 10 152N11550 PL 1 10 152N11551 PL 1 10 152N11552 PL 14 11 152N11553 PL 14 11 152N11554 PL 4 20 152N11555 PL 4 20 152N11556 PL 4 15 152N11557 PL 1 10 498N00184 PL 31 10 498N00364 PL 31 10 600301736 PL 10 10 600 01741 8 20 700 00096 2 10 700 00097 2 10 2004 Parts List Work Centre M20 Family 5 31 Part Number Index Parts List March 2004 Part Number Index 5 32 Work Centre M20 Family 6 General Procedures and Information
115. PL 5 10 Item 31 15 Motor Step DADF P O PL 5 11 Item 27 16 Bracket P DADF Motor P O PL 5 11 REP 5 1 17 Cover P Gear P O PL 5 10 Item 31 18 Sheet Guide Paper P O PL 5 10 Item 31 19 PBA SUB DADF P O PL 5 10 Item 31 20 PMO Actuator P O PL 5 10 Item 31 21 PMO Actuator Duplex P O PL 5 10 Item 31 22 CBF Harness Clutch IF P O PL 5 10 Item 31 23 CBF Harness DSUB P O PL 5 10 Item 31 24 CBF Harness DADF GND P O PL 5 10 Item 31 25 Shaft Gate Duplex P O PL 5 10 Item 31 26 Motor Step Duplex P O PL 5 11 Item 10 AP 8 0017 A 27 ELA HOU DADF Motor P O PL 5 10 Item 31 REP 5 1 NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more commonly recognised part names March 2004 Parts List Work Centre M20 Family 5 11 PL 5 11 PL 5 12 DADF Assembly 3 of 5 Item Part Description 1 MEA Unit Cover Exit Assembly P O PL 5 10 Item 31 2 Cover M Exit P O PL 5 12 Item 1 3 Spring ETC White BAR P O PL 5 12 Item 1 4 Roller Idle Scan P O PL 5 12 Item 1 5 Shaft Exit Idle P O PL 5 12 Item 1 6 Brush Antistatic P O PL 5 12 Item 1 7 Ground P Exit Cover P O PL 5 12 Item 1 8 Roller Exit P O PL 5 10 Item 31 9 Gear P O PL 5 10 Item 31 10 Label Cover Exit P O PL 5 12 Item 1 11 Guide M Duplex Lower P O PL 5 10 Item 31 REP 5 1 12 Guide M Duplex Inner P O PL 5 10 It
116. PR terminal FU FU Fuser PL 4 15 Item 28 Motor step MCK2 main MCK2 Development code name for PL 4 20 Item 2 machine Gear exit U Exit U Exit upper PL 4 20 Item 6 Gear RDCN feed inner RDCN Reduction PL 4 20 Item 15 MEA unit cover PA exit assembly Mechanical assembly PL 4 25 Item 1 PA Paper PMO tray extension MP NE PMO Processing mold PL 4 25 Item 2 MP Multi purpose bypass tray NE for NEC PMO connect paper MFP MFP Multi functional peripheral PL 4 25 Item 4 MPR name plate XRX MPR Machinery Press PL 4 25 Item 7 XRX Xerox Cover M front M Mold PL 4 25 Item 8 MEA unit guide CST PA assembly CST Cassette paper tray PL 4 25 Item 10 PA paper PMO cover BRKT motor BRKT Bracket PL 4 25 Item 20 PMO cam jam remove PMO Processing mold PL 4 25 Item 22 Special screw panel MFP MFP Multi functional peripheral PL 4 25 Item 23 Roller REGI REGI Registration PL 5 10 Item 6 PBA SUB REGI PBA SUB Sub printed circuit board assembly for the registration PL 5 10 Item 9 MEA unit TX stacker TX Transmit PL 5 10 Item 18 IPR washer spring CU CU Curve PL 5 10 Item 22 Ground P_scan roller Ground P Ground press PL 5 11 Item 2 IPR guard C O S W C O Cover open S W Switch PL 5 11 Item 13 IPR BRKT G DUP IPR Iron press BRKT Bracket G Ground DUP Duplex
117. R Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger March 2004 Work Centre M20 Family Introduction Translation of Warnings AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones 1013 Partial Blank Image Periodic RAP WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter l
118. RAM D 15 0 SRAM nRD SRAM_nWR Image SRAM Processing 8192x8 Module 2line 4096 x16 2 line Interrupt Vpeak Control Control Motor TXA Control DE TX_EN1 EN2 DMA CPU I F 4 Interface E E nCS nRD nWR A 5 0 D 15 0 nXDREQ nXDACK AP 1 0113 A Figure 3 Block Diagram of CIP4 GP 15 Host Interface Purpose To give information about the machines interfaces Host Interface USB Interface Option Direct Kit Network Kit Referred to IEEE 1284 standard NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names Host Interface PARALLEL PORT INTERFACE PART ARM946ES has the Parallel Port Interface Part that enables Parallel Interface with a PC This part is connected to a PC through a Centronics con nector It generates major control signals that are used to actuate parallel communication lt is comprised of ERROR PE BUSY ACK SLCT INIT SLCTIN AUTOFD and STB This part and the PC data transmission method support the method specified IEEE P1283 Paral lel Port Standard http www fapo com ieee1284 html In other words it supports both com patibility mode basic print data transmitting method the nibble mode 4bit data supports data uploading to PC and ECP enhanced capabilities port 8bits data high speed two way data transmission with PC Compatibility mode is generally referred to as the Centronics mode a
119. RG STEP PULSES L 5 84 ig 4 ORA 4 RED BLU Ke RED a MOTOR STER cui 1 RED 3 STEP PULSES 5 11 BLU GES STEP PULSES e MOTOR PNK STEP PULSES RED Wes DRIVER RED STEP PULSES 1 e YEL BLU Dis RED L3 PMO SCAN RED E SENSOR NC 4 0 OPEN DOOR SIGNAL cns 1 T Se 12 PMO DUPLEX RED i SENSOR RED me NC 4 Figure 5 Wiring Diagram 5 TAP 1 0005 A Wiring Data Wiring Diagrams March 2004 7 8 Work Centre M20 Family Wiring Diagram 6 MOTOR STEP SCF PBA SUB EXIT PBA SCF PL7 16 24V Ee STEP PULSES PL 7 16 BLU motor _ STEP PULSES T RED STEP PULSES L STEP PULSES ORA ov EE ELA HOU UPPER SCF2 PL 7 15 CN3 l 41 3 3V KE 11 RED PAPER EMPTY lt L j SENSOR RED t PLz45 d ov GRN CH ELA HOU 14 ax SE SOLENOID L SCF SOLENOID Bene BK PL 7 16 CNS P4 id 3 3V ac 1 BLU li SCF STS Ga 74 Et YEL I1 SCF CMD ME RED 2 A M i SCF RDY ee 1 gt foe ee i 24VS GRN 74 7 li 84 DN Lg BLK RAN TAP 1 0006 A Figure 6 Wiring Diagram 6 March 2004 T Miring Data Work Centre M20 Family 7 9 Wiring Diagrams Wiring Data Ma
120. Refer to Wiring Diagram 1 Perform the following Check the spring contacts and the wiring to the SMPS HVPS If necessary install a new SMPS HVPS PL 1 10 Item 4 4 Print a test pattern For example print the help list from the menu If necessary install a new PBA main PL 1 10 Item 9 Image Quality March 2004 106 1Q7 3 6 Work Centre M20 Family 108 Background RAP Use this RAP when the printed sheets have a dark or spotted background as shown in Figure 1 Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer AP 1 0132 A Figure 1 Background Procedure WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names Perform the following 1 Ensure that the paper tray settings match the paper or media size in the trays Also ensure the media is within specification refer to GP 22 Paper and Media Specifications 2 Ensure the machine is being operated in the correct environmental conditions Refer to IQ9 Ghost Images RAP Use this RAP when the printed sheets have ghost images as shown in Figure 1 Digital Printer Digital Printer Digital Printer AP 1 0133 A Figure 1 Ghost imag
121. SENSORS SENSORS 2P PTL 2P X 3EA SOLENOID PICK_UP DUPLEX MP X 2EA6P X 1EA PAPER SENSOR FEED P EMP EXIT MP Image Processer 4P COVER OPEN S W AFE Option 24N 5V PORT gt MODEM Modular Jack 33 6Kb Motor CNTR 5 LINE1 EXTERNAL SMART PHONE DMAC INTERFACE DAA 1 EXTERNAL PHONE CCDMODULE E CAEDE External Auditron Figure 1 Main circuit AP 1 0085 A Work Centre M20 Family March 2004 6 21 General Procedures and Information GP 12 GP 13 Circuit Operation Purpose To give information about the operation of the machines circuitry Power On Off Reset Program ROM Flash Memory Control AC Characteristics USB Universal Serial Bus SRAM 1MByte SRAM K6F1008U2C FAX Transceiver NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names Power On Off Reset Signal Operation Input signal 3 3V Power Line VCC Output Signal XC61 FN 3112 POWER ON OFF DETECT VCC RISING FALLING 3 1V RESET TIME Td 5 461ms Timing Chart Refer to Figure 1 mec Ll 4 TI LJ LI ec 5 461 ms 6553 j MCLK io age LII UUUUWUUU ALT LAL vein o S SS ma 5 461 ms 65535 MCLK K falling RESETn 15 HCLK AP 8 0086 A Figure 1 Timing chart Program ROM Flash Memory Control Device Refer to Table 1 Table 1 De
122. TE 2 5 Gear MP DUP DRV see NOTE 2 6 Spring Feed see NOTE 2 7 PMO Bushing Feed see NOTE 2 8 PMO Bushing TX B4 see NOTE 2 9 PMO Shaft DUP Driver see NOTE 2 10 RPR Rubber Exit see NOTE 2 11 IPR BRKT G DUP see NOTE 2 12 Roller Exit see NOTE 2 13 Spring Fuser Exit see NOTE 2 14 PMO GP Lower DP see NOTE 2 15 PMO Feed Frame see NOTE 2 28 29 32 16 IPR Bracket Guide see NOTE 24 25 27 2 17 CBF Harness OPE GND see NOTE 2 18 IPR BRKT Ground see NOTE 2 19 IPR BRKT Ground see NOTE 2 20 IPR BRKT Ground TR see NOTE 8 4 PLACES 2 Sch 21 PMO Holder Saw see NOTE 2 22 IPR Plate saw see NOTE 2 23 IPR BRKT Guide see NOTE 2 24 009 01363 MEA Unit Hold Gear 25 PMO Bush P O PL 8 10 24 26 Spring ETC TRR P O PL 8 10 Item 24 27 PMO Holder Gear TR P O PL 8 10 Item 24 28 MEA Unit Hold TR GND Not Spared 29 PMO Bush P O PL 8 10 28 30 Spring ECT TR P O PL 8 10 28 31 Spring ETC Plate TR P O PL 8 10 Item 28 32 PMO Holder GND TR P O PL 8 10 Item 28 33 022N01475 Transfer Roller AP 8 0005 A 34 007 01114 Gear Transfer NOTE 1 If necessary refer to GP 20 for the acronym list and cross reference lists of more commonly recognised part names NOTE 2 Part of PL 8 10 Item 2 March 2004 Parts List Work Centre M20 Family 5 19 PL 8 10 PL 8 11 Side Cover Assembly
123. To test various functions or components of the machine The test is performed then the result is displayed on the LCD NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names Procedure 1 Press Menu Exit 1 9 3 1 in sequence The LCD will display Engine Test Diagnos tic 2 Press Enter The machine has now entered service tech mode 3 Use the numbered keys to select the relevant test number Use the left and right keys to scroll through the available tests refer to Figure 1 To view details of each test number refer to Table 1 Test Map 4 exit engine test mode switch off the machine then switch on the machine NOTE To escape from the current test mode to the higher test mode press the stop button NOTE To escape from the engine test mode to the normal mode press again the stop button Sensor Test Description Actuating the relevant sensor changes its displayed state Table 1 Test Map Refer to Table 2 Sensor Description for the sensor names that are displayed on the LCD Signal The time in milliseconds will be displayed after approx imately 10 seconds Test Test Items Description Setting Description Setting Description 0 ALL MOTOR TEST ON Runs the Dev motor amp Fuser Motor OFF Stops the Dev motor amp Fuser Motor FUSER MOTOR TEST STEP
124. Work Centre M20 Family 8 4 Paper Jam 0 Open Close Door RAP The machine has failed to detect paper at the feed sensor Procedure WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names Refer to Wiring Diagram 3 Perform the following 1 Open the right hand cover Remove all jammed paper 8 5 Paper Jam 1 Open Close Door RAP The machine has detected paper jammed in the fuser area Procedure WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury WARNING Do not touch the fuser while it is hot NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names 2 Open the paper tray Remove all jammed paper Close the paper tray Refer to Wiring Diagram 3 Perform the following 3 Enter GP 1 Engine Test Mode Entry Use the sensor test to check FD This is the feed 41 Open the right hand cover Remove all jammed paper from the fuser area Ensure that the sensor part of the PBA SUB Feed amp P EMP SEN PL 8 25 I
125. a durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efectua tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones WARNING Take care during this procedure Sharp edges may be present that can cause injury DANGER Ex cuter cette proc dure avec pr caution La pr sence de bords tranchants peut entrainer des blessures AVVERTENZA procedere con cautela durante questa procedura Possono essere pre senti oggetti con bordi taglienti pericolosi VORSICHT Bei diesem Vorgang vorsichtig vorgehen damit keine Verletzungen durch die scharfen Kanten entstehen AVISO Tenga cuidado al efectuar este procedimiento Puede haber bordes afilados que podr an producir lesiones REP 8 3 Transfer Roller Assembly WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can ca
126. ail TX REport Billing Table 2 C20 user mode settings counters Print All Reports Function Item Option Machine Setup Tray 1 Size Letter A4 Legal Folio Tray 2 Size Letter A4 Legal Folio Bypass Size Letter A4 Legal Folio A5 Statement Power Save On Off Machine Timeout 15 30 60 180 Off Alarm Sound On Off Key Sound On Off Language English French German Italian Spanish Portuguese Dutch Danish Finnish Nor wegian Swedish Russian Localisation Inch MM Select Country UK Greece Turkey Ukraine Slovenia Russia Yugoslavia Australia HongKong NewZealand SouthAfrica Israel Korea K Xerox China India Asia STD Malaysia Singapore USA Canada Brazil Chile Columbia Mexico Argentina Peru Ger many France Austria Switzerland Italy Spain Portugal Norway Finland Sweden Netherlands Denmark Belgium Hungary Poland Czech Romania Bulgaria land USB Mode Fast Slow Toner Save On Off System Admin Password Protect No Yes Tools Network Setup Reset NIC Configure Network Netware Use Factory Defaults Email Setup SMTP Server Setup Auth User Setup Auto Send to Self Guest User Access Default From Default Subject LDAP Server Setup General Procedures and Information March 2004 GP2 6 8 Work Centre M20 Family GP 3 Service Mode Entry Purpose To perform various tests to isolate the cause of a fault
127. al 17 Remove the ELA HOU CCD module Figure 15 Repairs and Adjustments March 2004 REP 14 1 4 37 Work Centre M20 Family Replacement 3 1 Replacement is the reverse of the removal procedure Remove the shaft CCD 2 Ensure that the ELA HOU CCD module is installed correctly Figure 17 2 Remove 1 E clip ELA HOU CCD then the pulley module 4 Remove the ELA HOU CCD module from the belt 1 Unlock the ELA HOU CCD module AP 1 0017 A Spring ETC belt Figure 15 ELA HOU CCD module removal Figure 17 ELA HOU CCD module replacement 18 Remove the ELA HOU scan motor Figure 16 3 Ensure the CBF signal CCD FFC is re installed correctly onto the ELA HOU CCD mod 1 ule and the PBA main Disconnect the inline The blue flash on the end of the CBF signal CCD FFC should face toward the ELA connector HOU CCD module When connected to the PBA main the blue flash on the other end of the CBF signal CCD FFC should face downwards 2 Remove 3 screws then the ELA HOU scan motor AP 1 0018 A Figure 16 ELA HOU scan motor removal 19 Remove the PBA SUB D SUB PL 14 11 Item 5 Repairs and Adjustments March 2004 REP 14 1 4 38 Work Centre M20 Family ADJ 1 1 Machine Settings Purpose To correctly set up the machine Procedure All adjustments to the machines settings are made via GP 2 User Mode Entry or GP 3 Service Mode Entry Go to the relevant procedure
128. an before leaving the customer premises Provide customer training if required Service Call Procedures SCP 5 SCP 6 March 2004 1 6 Work Centre M20 Family SCP 7 Machine Configurations and Options Machine Configurations and Options Refer to Table 1 for the CopyCentre C20 WorkCentre M20 and WorkCentre 20 configura tions and options Table 1 Machine Configurations Features C20 WC M20 WC M20i Basic copier with paper tray 1 Yes Yes Yes Paper tray 2 Optional Optional Optional Bypass tray Yes Yes Yes Stand Optional Optional Optional Duplex assembly Yes Yes Yes DADF Yes Yes Yes Direct printing No Yes Yes Scan to file No Yes Yes Network printing No Optional see note 1 Yes Fax No No Yes Scan to e mail No Optional see note 1 Yes Qwerty keyboard No Optional see note 1 Yes Foreign device interface Optional Optional Optional Network connectivity kit No Optional No Postscript 3 DIMM No Optional see note 1 Yes Onboard memory 32Mb Yes Yes Yes Extra memory 48Mb No No Yes Extra memory 32Mb No Optional see note 1 NOTE 1 These components are only available as part of the network accessories kit NOTE 2 This service manual covers all the above configurations Within this manual ignore any references to options that are not installed March 2004 Work Centre M20 Family 1 7 Service Call Procedures SCP 7
129. ank Image Periodic RAP Use this RAP when the printed sheets have blank areas that form a regular or repeated pat tern Procedure WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names Perform the following 1 Measure the distance between the image and the defect Refer to Table 1 to determine the possible cause of the defect Table 1 Defect distance 1Q14 Different Image Density Left and Right RAP Use this RAP when the printed sheets have different areas of image density across the pro cess direction An example is shown in Figure 1 Digital Printer Digital Printer Digital Printer Digital Printer Defect distance Roller Component Parts List Ref Digital Pri nter 94 3mm ELA OPC unit drum P O ELA OPC unit drum PL 9 10 Item 1 38 3mm Charge roller P O ELA OPC unit drum PL 9 10 Item 1 43 8mm Supply roller P O ELA toner unit set PL 9 10 Item 2 Figure 1 Image density 54 3mm Developer roller P O ELA toner unit set PL 9 10 Item 2 51 9mm Cleaning roller P O ELA toner unit set PL 9 10 Item 2 Procedure 56 6mm Transfer roller Transfer roller PL 8 10 Item 33 WAR
130. ar PMO frame main PL 4 15 Item 11 and CN22 on the PBA main PL 1 10 Item 9 4 Ifthe message persists install a new PBA main PL 1 10 Item 9 Status Indicator RAPs March 2004 9 3 9 4 2 10 Work Centre M20 Family 9 5 Toner Empty RAP The machine has detected that the toner cartridge is empty Procedure WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names Refer to Wiring Diagram 1 Perform the following 1 Install a new ELA toner unit set PL 9 10 Item 2 2 If the message persists check the PBA SUB toner RX PL 4 15 Item 23 and the PBA SUB toner TX PL 8 25 Item 5 3 If necessary install a new PBA main PL 1 10 Item 9 9 6 Toner Low RAP The machine has detected that the toner cartridge is almost empty Procedure WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names 1 may be unevenly distributed
131. are il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones 1Q16 Periodic Printing Defects Check RAP WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi ona
132. arts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones 6 1 LSU Error RAP WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pan
133. ation about the operation of the scanner Summary CCD Key Features NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names Summary This flat bed type device to read manuscripts has 600dpi CCD as an image sensor There is one optical sensor for detecting CCD home position and scan end position The home position is detected by a optical sensor which is attached to the CCD Module The scan end position is calculated by the number of motor steps Refer to Figure 1 for the scanner block diagram AIN PI TG PM D ADC REFB LI Sensor Shading 12 bit Interface Acquisition AID converter AFE_CIP4 SRAM 1024x8 SRAM 15 0 R G B SRAM D 15 0 SRAM Processing 8192x8 Module 2line 4096 x16 2 line IRQ Interrupt Control TX A nTX A TX EN1 EN2 DMA CPU I F 4 Interface Lk 1 0111 nCS nRD nWR A 5 0 D 15 0 nXDREQ nXDACK Figure 1 Block Diagram CCD Charge Coupled Device improves productivity and allows a compact design The machine uses a color CCD Minimum Scan Line Time for One Color 2 5mSec Light Source Power 18V Maximum Pixel frequency 10 2 Effective Sensor Element 5340 X 3 Clamp Level 0 7 0 8V Bright Output MIN 0 8V8 3 2 Key Features Key Features Overview 0 5m C MOS process TLM 208 PIN QFP STD85 library Frequency Max PLL 80 MHz On Chip oscillator
134. ay be present that can cause injury DANGER Ex cuter cette proc dure avec pr caution La pr sence de bords tranchants peut entrainer des blessures AVVERTENZA procedere con cautela durante questa procedura Possono essere pre senti oggetti con bordi taglienti pericolosi VORSICHT Bei diesem Vorgang vorsichtig vorgehen damit keine Verletzungen durch die scharfen Kanten entstehen AVISO Tenga cuidado al efectuar este procedimiento Puede haber bordes afilados que podr an producir lesiones WARNING Do not touch the fuser while it is hot DANGER Ne pas toucher au four pendant qu il est encore chaud AVVERTENZA Non toccare il fonditore quando caldo VORSICHT Fixierbereich erst ber hren wenn dieser abgek hlt ist AVISO No toque el fusor mientras est caliente REP 10 2 MEC Exit Assembly WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interv
135. care during this procedure Sharp edges may be present that can cause injury CAUTION Before performing this procedure refer to General Disassembly Precautions GP 10 NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names 1 Remove the SMPS HVPS REP 1 1 2 Remove the connect paper MFP Figure 1 AP 1 0002 A Figure 2 MEA unit rear cover removal Replacement 1 Replacement is the reverse of the removal procedure Remove the thumbscrew then the PMO connect paper MFP AP 1 0062 A Figure 1 PMO connect paper MFP removal 3 Remove the PMO cover exit rear Figure 2 Repairs and Adjustments March 2004 REP 4 2 REP 4 3 4 10 Work Centre M20 Family 1 Figure 2 PMO cover exit rear removal Replacement Replacement is the reverse of the removal procedure Remove 1 screw then the PMO cover exit rear AP 1 0063 A REP 4 4 ELA HOU Frame Main Assembly Parts List on PL 4 15 Removal WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury WARNING Take care during this procedure Sharp edges may be present that can cause injury CAUTION Before performing this procedure refer to General Disassembly Precautions GP 10 NOTE If necessary refer to GP 20 fo
136. cation Circuit PSTN or behind PABX PSTN Public Switched Telephone Network PABX Private Automatic Branch Exchange Data coding Compression MH MR MMR JBIG JPEG Color Transmission Modem speed 33600 28800 21600 19200 14400 12000 Transmission Speed Approximately 3 sec 33 600 bps Effective Scanning Width 8 2 inches 208 mm Halftone 256 Levels Paper Capacity Input DADF Duplex Automatic Document Feeder 50Sheets 75g FAX Mode Standard Fine Super Fine Halftone Memory 8MB Table 3 Facsimile specifications Item Description System Memory 32Mb Warming up Time 40 Sec Stand By 25 C Absolute Storage Condition Temperature 20 C 40 C Humidity 10 RH 95 RH Operating Condition Temperature 10 C 32 C Humidity 20 RH 80 RH Recommended Operating Con dition Temperature 16 C 30 C Humidity 30 RH 70 RH Dimension W X D X H Basic 560 X 433 X 397 mm Platen cover attached Extended 560 X 433 X 490 mm DADF attached 560 X 433 X 530 mm SCF attached 560 X 433 X 620 mm both DADF and SCF Standard Recommendation ITU T Group3 ITU International Telecommunications Union Application Circuit PSTN or behind PABX PSTN Public Switched Telephone Network PABX Private Automatic Branch Exchange Data coding Compression MH MR MMR JBIG JPEG Co
137. cations Item Description Mode B W Quality Text Photo Mixed Mono Copy Speed 1 Platen SDMP 21 com ADF SDMP 21 com ADF MDSP Text mixed Approx 21 cpm Optical Resolution H x V 600 X 600 dpi Multi Copy 1 to 999 Maximum Original Size Legal Maximum Page Size Legal Paper Type Selection Plain Cardstock Transparency Bond Labels Colored Zoom Range Platen 25 400 1 Step ADF 25 100 1 Step NOTE 1 Speed claims based on the test chart Letter size SDMP Single Document Multiple Printout MDSP Multiple Document Single Printout Table 6 Telephone specifications Item Description Speed Dial 200 Locations Tone Pulse Tone only user mode Tone Pulse selectable in tech mode Ringer Volume OFF LOW MEDIUM HIGH Chain Dial None Pause Yes using the Pause Redial Key Table 7 Consumables Item Life expectancy Toner Cartridge 8 000 sheets 5 coverage pattern simplex normal mode Drum Cartridge 20 000 sheets simplex normal mode Table 8 Fuser operating temperatures Machine State or Paper Type Environment Power on after 2 minutes after 30 prints after 60 prints LL NN HH Machine in standby 200 195 degrees C 195 188 degrees C 195 185 degrees C Plain 205 195 degrees C 200 195 degrees C 200 195 degrees C Thick Bond Label 205 195 d
138. cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efectua tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones IQ11 Poor Fusing RAP WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n
139. ccepted to Q303 Q303 s Ic increases to the current proportional to time through the T301 primary coil and when it reaches the Hie limit of Q303 it will not retain the on state but will turn to off As Q303 turns off TRANS 1 will have counter electromotive force discharge energy to the second ary coil send current to load and output THV voltage through the high voltage output enable which is comprised of Regulation circuit Refer to Figure 8 tev R20 Y 10K 208 u2 105 21 NE t ir n CER Tas Ar Di E Um 1 R26 SBRI06 MGRI 2W100KF RaT SBR207 Zem 20202 Row E R215 0203 mum aen 22K C 2222 E eor 0304 gen oi i yowa mmm eum SBR306 AP 1 0125 A Figure 8 THV signal Environment Recognition THV voltage recognizes changes in transfer roller environment and allows the voltage suitable for the environment in order to realize optimum image output The analog input is converted to digital output by the comparator that recognizes the environmental changes of the transfer roller It is to allow the right transfer voltage to perform appropriate environmental response considering the environment and the type of paper depending on this digital output by th
140. ce harness PL 1 10 Item 17 Page M20i only list 6 Remove the PBA main Figure 2 2 Remove the MEA unit rear cover REP 4 2 3 Remove the PBA LIU Figure 1 Repairs and Adjustments March 2004 REP 1 2 4 4 Work Centre M20 Family 1 2 Remove 6 screws then the PBA main AP 1 0079 A Figure 2 PBA main removal Replacement 1 Replacement is the reverse of the removal procedure 2 If anew PBA main has been installed perform a memory clear GP 5 3 PBA main has been installed re enter the machine serial number Refer to GP 6 Maintenance 4 PBA main has been installed use the information on the System Data list and Connect Page M20i only list to re enter the customers settings Refer to GP 2 User Mode Entry REP 2 1 ELA HOU OPE Assembly Parts List on PL 2 10 and PL 2 11 Removal WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury WARNING Take care during this procedure Sharp edges may be present that can cause injury CAUTION Before performing this procedure refer to General Disassembly Precautions GP 10 NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names 1 Remove the ELA HOU scanner assembly perform REP 14 1 steps 1 through 8 2 Remove
141. ch Small Feed P O PL 5 10 Item 31 REP 5 1 Bush 6 D P O PL 5 10 Item 31 MEA Unit Pickup P O PL 5 10 Item 31 REP 5 1 Roller Feed P O PL 5 10 Item 31 PMO Bushing Holder P O PL 5 10 Item 31 Bush M Feed Roller P O PL 5 10 Item 31 NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more commonly recognised part names AP 8 0019 A March 2004 Parts List Work Centre M20 Family 5 13 PL 5 13 PL 5 14 DADF Assembly 5 of 5 Item 1 2 Part 002N02285 025 00081 006 01241 022 01511 130 01201 140 62868 003 00939 Description ELA Unit Platen Cover REF PL 5 10 Item 28 PMO Cover Platen C P O PL 5 14 Item 1 PMO Extension Platen P O PL 5 14 Item 1 Guide M Extension P O PL 5 14 Item 1 DADF Document Cushion IPR P Pinch Scan P O PL 5 14 Item 1 Shaft Pinch PMO Roll Pinch PMO Actuator Sensor SCAN PBA SUB GATE MEA Unit Hinge Assembly Plate P Dummy Platen P O PL 5 14 Item 1 Spring ETC Charge P O PL 5 14 Item 1 Spring ETC Torsion DOC P O PL 5 14 Item 1 NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more commonly recognised part 7 4 ie 8 3 PLACES gt 6 3 PLACES AP 8 0020 A Parts List March 2004 PL 5 14 5 14 Work Centre M20 Family PL 6 10 LSU Description Part Item Unit LSU REP 6 1 CBF Harness LSU
142. ct the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones IQ10 Stains on Back of Paper RAP WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can
143. ctricity Electricity can cause death or injury Moving parts can cause injury NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names Refer to Wiring Diagram 1 Perform the following 1 Install the ELA toner unit set PL 9 10 Item 2 9 2 Non Xerox Toner Cartridge RAP The machine detects an incompatible toner cartridge Procedure WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names Refer to Wiring Diagram 1 and Wiring Diagram 3 Perform the following 1 Ensure that the cartridge is the correct Xerox cartridge for the machine ELA toner unit set PL 9 10 Item 2 2 Goto GP 1 Perform the Toner State test 2 Goto GP 1 Perform the Toner State test 3 If the test cannot be performed check the CRUM contact within the holder terminal PL 3 If the test cannot be performed check the CRUM contact within the holder terminal PL 4 15 Item 7 4 15 Item 7 4 Install new components as necessary 4 nstall new components as necessary e ELA toner unit set PL 9 10 Item 2 ELA toner unit set PL 9 10 Item 2 PBA main PL 1 10 Item 9 PBA main PL 1 10 Item 9 March
144. dad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones WARNING Take care during this procedure Sharp edges may be present that can cause injury DANGER Ex cuter cette proc dure avec pr caution La pr sence de bords tranchants peut entrainer des blessures AVVERTENZA procedere con cautela durante questa procedura Possono essere pre senti oggetti con bordi taglienti pericolosi VORSICHT Bei diesem Vorgang vorsichtig vorgehen damit keine Verletzungen durch die scharfen Kanten entstehen AVISO Tenga cuidado al efectuar este procedimiento Puede haber bordes afilados que podr an producir lesiones REP 8 5 MEA Unit Feed Roller Assembly WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono
145. de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efectua tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones WARNING Take care during this procedure Sharp edges may be present that can cause injury DANGER Ex cuter cette proc dure avec pr caution La pr sence de bords tranchants peut entrainer des blessures AVVERTENZA procedere con cautela durante questa procedura Possono essere pre senti oggetti con bordi taglienti pericolosi VORSICHT Bei diesem Vorgang vorsichtig vorgehen damit keine Verletzungen durch die scharfen Kanten entstehen AVISO Tenga cuidado al efectuar este procedimiento Puede haber bordes afilados que podr an producir
146. der Bedienelementen deren Verwendung nicht ausdr cklich in diesem Handbuch angewiesen wurde kann dazu f hren dass unsichtbare Laser strahlung frei gesetzt wird Direkter Blickkontakt mit dem Laserstrahl kann bleibende Augensch den verursachen AVISO Siga los procedimientos de mantenimiento tal como est n descritos El uso de controles o ajustes no especificados en este manual puede tener como resultado la exposici n a radiaci n l ser invisible Durante las operaciones de mantenimiento la radiaci n de l ser invisible puede causar da os en los ojos si se mira directamente a ella 1 Service Call Procedures SCP 1 Initial Actions WARNING Switch off the electricity to the machine Disconnect the power cord from the cus tomer s supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger
147. e M20 Family Junk Fax List This list shows specific information about the fax numbers from which the machine will receive faxes Email TX Report This report shows specific information concerning scan to email activities the time and dates of the most recent transmissions Billing Counters This list shows specific information about the machines total print count Connect Page This list shows specific information about the machines connection profile User Auth List This list shows specific information about the authorised email users Print All Reports This function will print all available reports including the Help List The Help List shows a brief description on the machine s basic functions and commands Use it as a quick reference guide GP 8 Firmware Upgrade Purpose To give details of the 2 possible firmware upgrade procedures local and remote Local Machine Remote FAX Local Machine RCP Remote Control Panel mode Use this method if the machine can be connected to a PC via a parallel port or USB port 1 Connect the PC to the machine with either a parallel cable or USB cable 2 Execute RCP and select Firmware Update Current firmware version and emulation ver sion are displayed in the current version window 3 Use the browse function to locate the firmware file to update 4 Click the Update icon the firmware file is transmitted to the machine automatically The machine will initialize when the update
148. e causare lesioni personali VORSICHT Weist darauf hin dass ein Abweichen von den angef hrten Arbeits und Wartungsanweisungen gesundheitliche Sch den m glicherweise sogar schwere Ver letzungen zur Folge haben kann AVISO Un aviso se utiliza siempre que un procedimiento de operaci n o mantenimiento pr ctica o condici n puede causar da os personales si se respetan estrictamente WARNING Follow the service procedure exactly as written Use of controls or adjustments other than those specified in this manual may result in an exposure to invisible laser radia tion During servicing the invisible laser radiation can cause eye damage if looked at directly DANGER Les proc dures de d pannage doivent tre suivies la lettre Si les r glages ou v rifications ne sont pas effectu s suivant les instructions de ce manuel il peut y avoir un risque d exposition dangereuse au faisceau laser Celui ci peut provoquer des l sions oculaires s il est observ directement AVVERTENZA Eseguire le procedure di servizio esattamente come descritto L utilizzo di dispositivi di controllo o di registrazione diversi da quelli riportati in questo manuale potrebbe comportare un esposizione a radiazioni laser invisibili Tali radiazioni possono danneggiare gli occhi se si guarda direttamente il fascio laser durante gli interventi di servizio VORSICHT Die Wartungsarbeiten genau den Anweisungen entsprechend durchf hren Der Umgang mit Steuer o
149. e cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones 1014 Different Image Density Left and Right RAP WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectrici
150. e customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names Perform the following 1 Ensure that the gap between the original and the scanner glass MCT glass DADF PL 14 10 Item 4 is less than 0 5mm 2 If necessary go to GP 6 Maintenance and perform the Adjust Shading procedure 104 Vertical Black Lines or Bands RAP Use this RAP when there are black lines or bands along the process direction as shown in Fig ure 1 AP 1 0129 A Figure 1 Vertical black line and band Procedure WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names 1 If the defect is only present on received faxes ensure the defect is not being generated by the fax machine that is transmitting the fax 2 Ifthe defect is only present when making copies clean the MCT glass scanner PL 14 10 Item 12 3 If the defect is only present when making copies from the DADF clean the MCT glass DADF PL 14 10 Item 4 4 Lightweight media can cause fusing problems that
151. e injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones 8 3 Duplex Jam RAP WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cess
152. e is regulated by On Off switch and turns to DP dial signal with a COUPLER 21 does not have telephone capability but has the number 3 and 4 Line Connection No DP condition but possibility to get approval only on DTMF Dial based terminal Ring Detection Part RING SIGNALS from the LINE section TIP RING are further passed through C5 R3 ZD1 and ZD2 and ends up at U9 PC 814 U9 then detects above RING SIGNAL and passes the output to MAIN BD The wire diagrams C5 is RINGER CAPACITOR and it normally uses 1UF 250V A limits AC current and controls upper and lower REN meter March 2004 Work Centre M20 Family General Procedures and Information GP 18 GP 19 SMPS Unit Operation Purpose To give information about the operation of the SMPS Switching Mode Power Supply Summary DC Matching Part AC Matching Part Dialer Part NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names SMPS Specifications The SMPS Switching Mode Power Supply Unit used here is a PWM Pulse Width Modula tion type power supply unit that supplies DC 5V to controller and control panel and DC 5V DC 24V and DC 12V to the engine It also supplies AC power to fixer heat lamp Refer to Table 1 for output channel information Table 1 Output channel information No Output Channel Ch 1 Ch 2 Ch 3 1 Channel Name
153. e non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones 1Q4 Vertical Black Lines or Bands RAP WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali
154. e pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones 9 1 Install Cartridge RAP WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les
155. e pro grams that can be input to the engine controller ROM This environment recognition setting is organized as follows First set the THV standard voltage Allow 200M load to transfer output enable output and set the standard voltage 800V using VR201 Then set 56 CPU s recognition index value as the standard using VR302 This standard value with CPU makes sure that the current feedback is 4A when output voltage is 800V and load is 200M If the load shows different resistance value when 800V is output the current feedback will also be different and thus the index value will also be different according to the index value read by CPU the transfer voltage output will differ according to the preset transfer table General Procedures and Information March 2004 Work Centre M20 Family 6 31 GP 16 GP 17 PBA OPE Operation Purpose To give information about the operation of the PBA OPE NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names Summary The OPE board is separated functionally from the main board and operated by the MICOM HT48R50 in the board OPE and the main use UART universal asynchronous receiver trans mitter channel to exchange information OPE reset can be controlled by the main OPE MICOM controls key scanning and LCD and LED display If there occurs an event in OPE such as key touch it sends specific codes to the main to respond to the si
156. e total print count refer to GP 3 5 Goto SCP 4 Fault Analysis SCP 4 Fault Analysis Fault Analysis is used to identify a fault Procedure When diagnosing or repairing a fault in a particular subsystem exercise the machine in all modes until the fault is determined In the instance of finding more than one fault or failure cor rect one fault before going to the next fault If no fault is found go to SCP 5 Subsystem Mainte nance Fault Messages If a fault message is displayed go to the relevant RAP 5 1 Load Documents RAP 5 2 Document Jam RAP 6 1 LSU Error RAP 8 1 Door Open RAP 8 2 Bypass Jam RAP 8 3 Duplex Jam RAP 8 4 Paper Jam 0 Open Close Door RAP 8 5 Paper Jam 1 Open Close Door RAP 8 6 Paper Jam 2 Check Inside RAP 8 7 No Paper Add Paper RAP 9 1 Install Cartridge RAP 9 2 Non Xerox Toner Cartridge RAP 9 3 Drum Warning RAP 9 4 Replace Drum RAP 9 5 Toner Empty RAP 9 6 Toner Low RAP 10 1 Low Heat Error RAP 10 2 Open Heat Error RAP 10 3 Over Heat Error RAP 20 1 FAX Error Messages RAP 20 2 Scan to E mail Error Messages RAP OF1 Function Impossible RAP OF2 IP Conflict RAP OFS Use Auxiliary Access RAP Power Failure If the machine fails to power on go to the 1 1 Power Failure RAP Image Quality Defects If the image quality is defective go to the relevant RAP IQ1 Blank Copies RAP IQ2 Black Copies From the Scanner RAP
157. ed with ESDs place the assembly on a con ductive surface such as aluminum or copper foil or conductive foam to prevent electro static charge buildup in the vicinity of the assembly 4 Use only a grounded tip soldering iron to solder or desolder ESDs Use only an anti static solder removal device Some solder removal devices not classi fied as anti static can generate electrical charges sufficient to damage ESDs March 2004 Introduction Work Centre M20 Family v Safety Precautions Health and Safety Incident reporting Summary This section defines requirements for notification of health and safety incidents involving Xerox products equipment and materials at customer locations Il Scope Xerox Corporation and subsidiaries worldwide Ill Objective To enable prompt resolution of health and safety incidents involving Xerox products and to ensure Xerox regulatory compliance IV Definitions Incident An event or condition occurring in a customer account that has resulted in injury illness or property damage Examples of incidents include machine fires smoke generation physical injury to an operator or service representative Alleged events and product conditions are included in this definition V Requirements Initial Report 1 Xerox organisations shall establish a process for individuals to report product incidents to Xerox Environment Health amp Safety within 24 hours of becoming aware of the event 2
158. ee AP 1 0050 A 1 4 Unclip the front and rear bush Figure 1 MEA unit duplex assembly removal holders AP 1 0051 A Replacement Replacement is the reverse of the removal procedure Figure 1 Transfer roller assembly removal Replacement Replacement is the reverse of the removal procedure Repairs and Adjustments March 2004 REP 8 2 REP 8 3 Work Centre M20 Family REP 8 4 ELA HOU MP Assembly Parts List on PL 4 25 and PL 8 20 Removal WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury WARNING Take care during this procedure Sharp edges may be present that can cause injury CAUTION Before performing this procedure refer to General Disassembly Precautions GP 10 NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names 1 Remove the ELA HOU frame main assembly REP 4 4 2 Disconnect CN27 and CN31 Figure 1 1 Disconnect CN27 and AP 1 0068 A Figure 1 Connectors 3 Remove the PMO cover feed Figure 2 1 Remove 1 screw then the PMO cover feed AP 1 0069 A Figure 2 PMO cover feed removal 4 Prepare to remove the ELA HOU MP assembly Figure 3 1 Remove 3 screws AP 1 0070 A Figure 3 Preparation 5 Remove the ELA HOU MP assembly Figure
159. eed guide PL 7 15 Item 10 MEA Unit DADF rubber Retard pad PL 5 13 Item 9 Table 9 Side cover assembly Part name Commonly known as PL Ref ELA HOU side cover assembly Right hand cover and duplex assembly PL 8 10 Item 1 MEA unit duplex assembly Duplex assembly PL 8 10 Item 2 MEA unit side SUB Right hand cover assembly PL 8 11 Item 1 MEC unit tray assembly Bypass tray PL 8 11 Item 8 Feeder Assembly Refer to Table 10 Table 10 Feeder assembly Part name Commonly known as PL Ref MEA unit feed roller assembly Main feed roll assembly PL 8 15 Item 1 PMO roller feed Main feed roll PL 8 15 Item 10 MP Assembly Refer to Table 11 Table 11 MP assembly Part name Commonly known as PL Ref ELA HOU MP assembly Paper transport assembly PL 8 20 Item 1 General Procedures and Information GP 20 March 2004 6 38 Work Centre M20 Family Table 11 MP assembly Part name Commonly known as PL Ref Solenoid MP Bypass tray feed solenoid PL 8 20 Item 4 PMO actuator MP Paper present sensor actuator PL 8 20 Item 12 PMO housing pickup MP Paper feed ramp PL 8 20 Item 19 RPR rubber pickup MP Bypass tray feed roll PL 8 20 Item 21 RPR RCT pad pickup MP Retard pad PL 8 20 Item 22 PBA SUB MP SEN Paper present sensor PL 8 20 Item 24 MS material pickup
160. egrees 200 195 degrees 200 195 degrees Thin 195 190 degrees 190 183 178 173 190 180 degrees C degrees C Envelope 200 degrees C 200 195 degrees 195 190 degrees Cardstock 210 205 degrees 210 205 degrees 205 200 degrees OHP 175 degrees C 170 degrees C 170 degrees C The environment acronyms are as follows LL Low temperature low humidity NN Normal temperature normal humidity HH High temperature high humidity Table 9 HVPS Output HVPS Output Voltage Transfer High Voltage THV Max 5000V DC 10 Transfer Cleaning Voltage THV Neg 1000V DC 15 Developing Voltage DEV 250V to 500V DC 5 General Procedures and Information GP 11 March 2004 6 18 Work Centre M20 Family Table 9 HVPS Output HVPS Output Voltage Charge Voltage MHV 1300V to 1450V DC 5 Supply Voltage 400V to 650V DC 5 Blade Voltage 300V to 550V DC 5 OPC Drum 135V 15 March 2004 General Procedures and Information Work Centre M20 Family 6 19 GP 11 GP 12 Circuit Description Purpose To give information about the machines main circuitry PBA main NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names The main circuit that consists of CPU MFP controller built in 32bit RISC processor core ARM946ES including variou
161. eign device check the wiring between the foreign device and the PBA foreign device interface 2 Check the wiring between the PBA foreign device interface and the PBA main If neces sary install a new PBA foreign device interface harness PL 1 10 Item 17 3 If necessary install new PBA foreign device interface PL 1 10 16 4 f necessary install a new PBA main PL 1 10 Item 9 OF4 Audible Noise RAP To isolate and identify the source of unusual noises Procedure WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names Ask the customer if there are any specific machine functions that are noisy Identify the source of the noise by exercising the machine in all modes To isolate the noise within an assembly perform the following To run the motor step MCK2 main enter GP 1 Engine Test Mode Perform the fuser motor test To run the motor DC MCK2 BLDC enter GP 1 Engine Test Mode Perform the BLDC motor test To run the unit LSU motor enter GP 1 Engine Test Mode Perform the LSU motor test To run the motor step SCF enter GP 1 Engine Test Mode Perform the SCF motor test The following are possible causes and potential s
162. electricity Electricity can cause death or injury Moving parts can cause injury WARNING Take care during this procedure Sharp edges may be present that can cause injury CAUTION Before performing this procedure refer to General Disassembly Precautions GP 10 NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names 1 Remove the ELA HOU side cover assembly REP 8 1 2 Remove the MEA unit duplex assembly Figure 1 2 Remove the MEA unit duplex assembly REP 8 3 Transfer Roller Assembly Parts List on PL 8 11 Removal WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury WARNING Take care during this procedure Sharp edges may be present that can cause injury CAUTION Before performing this procedure refer to General Disassembly Precautions GP 10 NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names 1 Open the ELA HOU side cover assembly NOTE For clarity the MEA unit duplex assembly is shown removed from the machine in Fig 1 2 Remove the transfer roller assembly Figure 1 2 Remove the transfer roller assembly 1 Unclip the MEA unit duplex assembly from the front and
163. em 31 REP 5 1 13 Gear Scan Roller P O PL 5 10 Item 31 14 PMO Bushing Holder P O PL 5 10 Item 31 15 Roller SCAN P O PL 5 10 Item 31 16 Spring ETC Clutch P O PL 5 10 Item 31 1 2 7 10 17 Roller Duplex P O PL 5 10 Item 31 18 Clutch Small Duplex P O 9 PL 5 10 Item 31 19 Bush 60 P O PL 5 10 Item 31 6 20 Bush 10 D P O PL 5 10 31 21 MEA Unit Guide Duplex P O PL 22 5 10 Item 31 REP 5 1 22 Bush 6D L P O PL 5 10 31 NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more commonly recognised part names AP 8 0018 A Parts List March 2004 PL 5 12 5 12 Work Centre M20 Family PL 5 13 DADF Assembly 4 of 5 Item 1 10 11 12 13 14 15 16 17 18 19 20 Part 019N00795 Description MEA Unit Support Pickup Assembly P O PL 5 10 Item 31 REP 5 1 Pickup Support P O PL 5 13 Item 1 Decurler P O PL 5 13 Item 1 Spring P O PL 5 13 Item 1 MEA Unit Guide Pickup Assembly P O PL 5 10 Item 31 REP 5 1 Guide M Pickup Upper P O PL 5 13 Item 5 MEA Unit Holder DADF Rubber Guide M Pickup Lower P O PL 5 13 Item 5 Spring ETC Torsion DOC CC2 F P O PL 5 13 Item 5 PBA SUB DOC Width P O PL 5 13 Item 5 PBA SUB Exit Open P O PL 5 13 Item 5 PMO Actuator DOC P O PL 5 13 Item 5 Spring ETC Clutch P O PL 5 10 Item 31 Bush 10 D P O PL 5 10 Item 31 MEC Clut
164. enoid is actuated in the same way When it receives control signal from the CPU the solenoid for paper feeding is actuated by switching circuit D29 1N4003 diode is applied to the both ends of the output terminal Q22 KSC1008 Y from noise pulse induced while the solenoid is de energized to protect PTL Actuation Circuit PTL actuation circuit switches its power using NPN TR Motor Actuation Circuit Motor actuation circuit is determined while selecting the initial driver IC provided by the ven dor This system uses TEA3718 U57 U58 A2918 U59 s motor driver IC However the sensing resistance R273 R274 R292 R293 and reference resistance R284 R289 R294 R295 can vary depending on the motor actuation current value It receives motor enable signal 2 phase from CPU and generates bipolar pulse constant current and sends its output to stepping motor input High Voltage Power Supply Summary It is the high voltage power supply that has DC 24V DC 5V used for the image forming device in OA digital picture developing method as the rated inputs It supplies electrifying volt age MHV supply voltage SUPPLY developing voltage DEV blade voltage BLADE and transferring voltage THV Each high voltage supply shows the voltage required in each digital picture process Digital Picture Process Digital picture developing method is widely used by copy machine laser beam printer and fax paper The process is comprised of elec
165. ent located in the vicinity of the incident b Return any affected equipment part s to the location designated by Xerox EH amp S and or the Business Division c Implement all safety retrofits 3 Xerox EH amp S shall a Manage and report all incident investigation activities b Review and approve proposed product corrective actions and retrofits if necessary c Manage all communications and correspondence with government agencies d Define actions to correct confirmed incidents VI Appendices The Health and Safety Incident Report involving a Xerox Product Form EH amp S 700 is avail able in the following locations On electronic documentation EDOC located in the folder safety In the hardcopy located at the end of the manual Introduction Health and Safety Incident reporting March 2004 Work Centre M20 Family Translation of Warnings Introduction Warnings Cautions And Notes WARNING A warning is used whenever an operating or maintenance procedure practice condi tion or statement if not strictly observed could result in personal injury DANGER Une note Danger est utilis e chaque fois qu une proc dure d utilisation ou de maintenance peut tre cause de blessure si elle n est pas strictement respect e AVVERTENZA Un segnale di avvertenza utilizzato ogni volta che una procedura oper ativa o di manutenzione una pratica una condizione o un istruzione se non stretta mente osservata potrebb
166. enti che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones WARNING Take care during this procedure Sharp edges may be present that can cause injury DANGER Ex cuter cette proc dure avec pr caution La pr sence de bords tranchants peut entrainer des blessures AVVERTENZA procedere con cautela durante questa procedura Possono essere pre senti oggetti con bordi taglienti pericolosi VORSICHT Bei diesem Vorgang vorsichtig vorgehen damit keine Verletzungen durch die scharfen Kanten entstehen AVISO Tenga cuidado al efectuar este procedimiento Puede haber bordes afilados que podr an producir lesiones REP 10 3 MEA Unit Cover PA Exit Assembly WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause in
167. enti che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efectua tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones 9 3 Drum Warning RAP WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT
168. entre M20 Family PL 4 15 Main Frame Assembly Item Part Description 1 002N02279 ELA HOU Frame Main Assembly REP 4 4 2 PMO Housing Terminal 2 P O PL 4 15 Item 1 3 IPR Terminal Blade P O PL 4 15 Item 1 4 IPR Terminal Supply P O PL 4 15 Item 1 5 IPR Terminal TR P O PL 4 15 Item 1 6 140N62873 PBA SUB Terminal 7 Holder Terminal P O PL 4 15 Item 1 8 CBF Harness Blade Supply DEV P O PL 4 15 Item 1 9 CBF Harness Main THV Wire P O PL 4 15 Item 1 10 CBF Harness Main MHV Wire P O PL 4 15 Item 1 11 PMO Frame Main P O PL 4 15 Item 1 12 PMO Lens Toner Sensor P O PL 4 15 Item 1 13 IPR GND Exit P O PL 4 15 Item 1 14 Ring CS P O PL 4 15 Item 1 15 IPR GND OPC Base P O PL 4 15 Item 1 16 IPR Ground Fuser MC2 P O PL 4 15 Item 1 17 IPR Guard C O S W P O PL 4 15 Item 1 18 IPR GND Terminal P O PL 4 15 Item 1 19 152N11556 CBF Harness AC Wire 20 110N01041 CBF Harness Switch Micro 21 B CBF Harness Motor P O PL 4 15 Item 1 22 130N01205 PBA SUB Exit Sensor 23 130N01208 SUB Toner RX 24 Gear Exit U ID P O PL 4 15 Item 1 25 Gear Exit Idle 217 P O PL 4 15 Item 1 26 011N00463 CBF Harness Thermistor Joint 27 PMO Housing Terminal P O PL 4 15 Item 1 28 IPR Terminal Fuser P O PL 4 15 Item 1 29 113N00364 CAP Connector L 30 113N00365 CAP Connecto
169. erletzungen durch die scharfen Kanten entstehen AVISO Tenga cuidado al efectuar este procedimiento Puede haber bordes afilados que Introduction Translation of Warnings March 2004 Work Centre M20 Family podrian producir lesiones REP 8 4 ELA HOU MP Assembly WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electrici
170. es Procedure WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names Perform the following 1 Measure the distance between the image and the ghosted image Refer to Table 1 to determine the possible cause of the defect Table 1 Ghosted image distance GP 11 Machine Specitications Defect distance Roller Component Parts List Ref 3 Check for contamination of the ELA toner unit set and if necessary install a new ELA 943mm ELA unit drum P O ELA unit drum PL 8 10 Item 1 toner unit set PL 9 10 Item 2 4 Clean any contamination on the ELA OPC unit set and if necessary install a new ELA Seon Charge roller P O ELA OPC unit drum 9 10 Item 1 OPC unit set PL 9 10 Item 1 43 8mm Supply roller P O ELA toner unit set PL 9 10 Item 2 5 Refer to Wiring Diagram 1 Perform the following 54 3mm Developer roller P O ELA toner unit set PL 9 10 Item 2 Go to GP 1 Engine Test Mode Entry Perform test number 5 to check the MHV ADC 51 9mm Cleaning roller P O ELA toner unit set PL 9 10 Item 2 and THV ADC read values 56 6mm Transfer roller Transfer roller PL 8 10 Item 33 Check that
171. esiones e incluso la muerte Las piezas m viles pueden causar lesiones OF1 Function Impossible RAP WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les Introduction Translation of Warnings March 2004 Work Centre M20 Family pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones
172. fuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones WARNING Take care during this procedure Sharp edges may be present that can cause injury DANGER Ex cuter cette proc dure avec pr caution La pr sence de bords tranchants peut entrainer des blessures AVVERTENZA procedere con cautela durante questa procedura Possono essere pre senti oggetti con bordi taglienti pericolosi VORSICHT Bei diesem Vorgang vorsichtig vorgehen damit keine Verletzungen durch die scharfen Kanten entstehen AVISO Tenga cuidado al efectuar este procedimiento Puede haber bordes afilados que podr an producir lesiones WARNING Avoid exposure to laser beam Invisible laser radiation DANGER Eviter toute exposition au faisceau laser Radiation laser invisible AVVERTENZA Evitare l esposizione al fascio laser Radiazioni laser invisibili VORSICHT Nicht in den Laserstrahl blicken Verletzungsgefahr durch unsichtbare Laserstrahlung AVISO Evite la exposici n al rayo l ser Radiaci n de l ser invisible REP 7 1 MEC Unit Tray Assembly WARNING Switch off the electricity to the machine Disconnec
173. ght P O PL 5 10 Item 18 22 IPR Washer Spring CU P O PL 5 10 Item 18 23 PMO Gear Pinion P O PL 5 10 Item 18 24 140N62867 SUB Length 25 120N00438 PMO Actuator Length 26 PMO TX Stacker Lower P O PL 5 10 Item 18 27 Spring ETC Torsion DOC CC F P O PL 5 10 Item 18 28 ELA Unit Platen Cover REF PL 5 14 Item 1 29 002302286 Front Cover 30 002N02287 Rear Cover 31 002N02291 ELA HOU DADF SUB P O PL 5 10 Item 1 NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more commonly recognised part AP 8 0016 A names Parts List March 2004 PL 5 10 5 10 Work Centre M20 Family PL 5 11 DADF Assembly 2 of 5 Item Part Description 1 Guide M SCAN P O PL 5 10 31 2 Ground SCAN Roller P O PL 5 10 Item 31 3 Ground P Exit Roller P O PL 5 10 Item 31 4 PBA SUB Sensor IF P O PL 5 10 Item 31 5 IPR BRKT White Bar P O PL 5 10 Item 31 6 Spring ETC White Bar P O PL 5 10 Item 31 7 Sheet Guide Paper P O PL 5 10 Item 31 8 6D P O PL 5 10 Item 31 9 Bracket P Duplex Motor P O PL 5 11 Item 10 REP 5 1 10 ELA HOU Duplex Motor P O PL 5 10 Item 31 REP 5 1 11 ELA HOU Cover Open Switch P 10 9 26 O PL 5 10 Item 31 f 12 Gear DADF 24 A P O PL 5 10 27 15 16 Item 31 13 IPR Guard C O S W P O PL 5 10 Item 31 14 Clutch Small Registration P O
174. gue la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efectua tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones WARNING Take care during this procedure Sharp edges may be present that can cause injury March 2004 Work Centre M20 Family Introduction Translation of Warnings DANGER Ex cuter cette proc dure avec pr caution La pr sence de bords tranchants peut entrainer des blessures AVVERTENZA procedere con cautela durante questa procedura Possono essere pre senti oggetti con bordi taglienti pericolosi VORSICHT Bei diesem Vorgang vorsichtig vorgehen damit keine Verletzungen durch die scharfen Kanten entstehen AVISO Tenga cuidado al efectuar este procedimiento Puede haber bordes afilados que podrian producir lesiones REP 4 2 MEA Unit Rear Cover WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un da
175. he inline con nectors ensure they are connected correctly March 2004 Repairs and Adjustments Work Centre M20 Family 4 19 REP 5 1 The MEC clutch small feed connects to the black wires The MEC clutch small registration connects to the green wires The MEC clutch small duplex connects to the yellow wires The ELA HOU cover open switch connects to the red wires Ensure the 2 ground harnesses are installed onto the cover P gear and the 3 ground harnesses onto the guide M scan assembly 2 REP 6 1 Unit LSU Parts List on PL 6 10 Removal WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury WARNING Take care during this procedure Sharp edges may be present that can cause injury WARNING Avoid exposure to laser beam Invisible laser radiation CAUTION Before performing this procedure refer to General Disassembly Precautions GP 10 NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names 2 Remove the MEA unit cover PA exit assembly REP 10 3 Prepare to remove the unit LSU Figure 1 Repairs and Adjustments REP 5 1 REP 6 1 4 20 March 2004 Work Centre M20 Family 1 Remove 3 screws then the unit LSU AP 1 0060 A AP 1 0061 A Figure 1 Prepara
176. ically together with any recommended actions Please note that the service actions are limited If the machine has a fax fault without displaying a message go to the 20 3 Fax Faults Without a Message RAP Messages WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names Comm Error Communication failure has occurred with either Fax transmission or reception Try re sending the Fax Group not available The user has selected a group location where only a single location can be used or when the group location is unavailable Try again checking for the correct group location Incompatible The remote party does not have the feature the user has requested for example polling Line Busy The remote party did not answer Wait and try again Line Error There is a problem with the phone line affecting transmission or reception Try again and if necessary wait for the line to clear Memory Full The Fax data memory is full Delete any unnecessary documents awaiting transmission or wait until more memory becomes available or split the current Fax in to smaller units No Answer It has not been possible to connect to the remote Fax even afte
177. id Server or Port Number The user has selected the incorrect SMTP server or port number Mail Too Large The machine is unable to split the mail and send it This can occur when the machine is config 20 3 Fax Faults Without a Message RAP Use this RAP when the machine has a fax fault but does not display a message If a fax fault message is displayed go to the 20 1 Fax Error Messages RAP Procedure WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names Refer to Wiring Diagram 4 Perform the following 1 Ensure the telephone line cable is properly connected into the line connector on the PBA LIU 2 Check the CBF harness LIU PL 1 10 Item 15 from CN37 on the PBA main to CN3 on the PBA LIU ured to send a maximum mail size For example 1 0MB and the scanned mail page exceeds 3 Ensure the correct dialing mode is selected Refer to GP 4 System Data this size 4 Use a known good telephone handset or a line test tool to check the telephone line 5 f necessary install a new PBA LIU PL 1 10 Item 13 Not Assigned 6 If necessary install a new PBA main PL 1 10 Item 9 The user has attempted to use a group mail that has no email a
178. ils se relachent AVVERTENZA non rimuovere l alimentatore automatico documenti quando abbassato In questa posizione le molle del contrappeso sono compresse e possono causare lesioni al rilascio VORSICHT Vorlageneinzug nicht in abgesenkter Position entfernen Bei abgesenktem Vorlageneinzug sind die Ausgleichsfedern zusammengedr ckt und k nnen bei Fre igabe Verletzungen verursachen AVISO No quite el alimentador de documentos autom tico si est bajado Cuando est bajado los resortes de contrapeso est n comprimidos y pueden causar lesiones al soltarse REP 6 1 Unit LSU WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzu
179. imum value of line voltage VAC At this point the width of rise rate will be determined by dv dt and overshoot voltage by the circuit When triac commutes off line the voltage of both ends of triac will have the same voltage as the line voltage Refer to Figure 2 Inductive IL GP 20 Acronyms and Parts Description List Purpose To provide a list of acronyms used throughout this service manual with an explanation of their meaning Refer to Table 1 To also provide a cross reference list of part descriptions used throughout this service manual with a list of more commonly recognised part descriptions Refer to the relevant section SMPS and PBA Main OPE Assembly Frames Drives and Covers DADF LSU Cassette Assembly SCF Side Cover Assembly Feeder Assembly MP Assembly Pickup Assembly Toner Drum Cartridge and Fuser Exit Assembly Scanner Assembly NOTE All tables have the items listed in parts list order Acronyms Refer to Table 1 Table 1 Acronyms Acronym Description PL Ref IPR shield SMPS upper IPR Iron press PL 1 10 Item 1 CBF power switch grey CBF Cable form PL 1 10 Item 2 SMPS HVPS SMPS Switching Mode Power Sup PL 1 10 Item 4 AP 1 0128 A ply HVPS High Voltage Power Supply Figure 2 Inductive circuit Shield P main lower P Press PL 1 10 Item 6 CBF harness LIU GND LIU Line interface unit for FAX PL 1
180. ine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names Perform the following 1 Check the high voltage spring contacts and clean if necessary Check that the contact is good 2 Goto GP 3 Perform the Clean Drum routine If necessary install a new ELA OPC unit drum PL 9 10 Item 1 3 Measure the distance between the image and the defect Refer to Table 1 to determine the possible cause of the defect Table 1 Defect distance Table 1 Defect distance Defect distance Roller Component Parts List Ref 51 9mm Cleaning roller P O ELA toner unit set PL 9 10 Item 2 56 6mm Transfer roller Transfer roller PL 8 10 Item 33 82 6mm Heat roller P O ELA HOU fuser PL 9 10 Item 4 assembly 91 1mm Pressure roller P O ELA HOU fuser PL 9 10 Item 4 assembly Install new components as necessary 4 Clean the charge roller and if necessary install a new ELA OPC unit set PL 9 10 Item 1 5 Check the condition of the ELA HOU fuser assembly and if necessary install a new ELA HOU fuser assembly PL 9 10 Item 4 6 If necessary install a new PBA main PL 1 10 Item 9 Defect distance Roller Component Parts List Ref 94 3mm
181. ine produces light images in all modes as shown in Figure 1 AP 1 0131 A Figure 1 Light image Procedure WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names NOTE For solid print area specifications refer to IQS 1 Solid Area Density Perform the following 1 Ensure that the paper tray settings match the paper or media size in the trays 2 Goto GP 1 Engine Test Mode Entry Perform the Toner State test If necessary install a new ELA toner unit set PL 9 10 Item 2 2 Goto GP 1 Engine Test Mode Entry Perform the Toner State test If necessary install a 3 Refer to REP 6 1 Lift out the unit LSU Clean the unit LSU window using a clean lint new ELA toner unit set PL 9 10 Item 2 free cloth If necessary install a new unit LSU PL 6 10 Item 1 3 Examine the ELA toner unit set PL 9 10 Item 2 and the ELA OPC unit set PL 9 10 Item 1 and ensure they are free from all packing or sealing material 4 Goto GP 6 Maintenance and perform the Adjust Shading procedure 5 Refer to REP 6 1 Lift out the unit LSU Clean the unit LSU window using a clean lint free cloth If necessary install a new unit LSU PL 6 10 Item 1
182. information about the machines control circuits Fuser Control Thermistor Circuit Paper Sensing Circuit LSU Circuit Fan Solenoid Actuation Circuit PTL Actuation Circuit Motor Actuation Circuit High Voltage Power Supply NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names Fuser Control Thermistor Circuit This circuit controls the heat lamp temperature to fix the transferred toner onto the paper It is comprised of the thermistor that has the negative resistance against the temperature and LM393 voltage comparator and transistor for switching The thermistor has the resistance value reverse proportional to the heat lamp surface temper ature The voltage value is read by 60 pin AVIN2 of CPU referring to the parallel combined resistance with the resistor R43 connected parallel to it and the voltage distribution of R29 The voltage read activates inactivates fuser signal to high or low referring to the set tem perature and when the fuser on signal turns down high to low high by Q3 switching the 521 4 inside SMPS turns on off and this eventually turns two way thyristor SY1 on off to allow shut AC voltage to the heat lamp LM393 is a H W designed to protect the system when the software heat lamp control does not run normal When the thermistor temperature goes up to 210C 1 pin s level LM393 will turn low to tu
183. itant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones 8 4 Paper Jam 0 Open Close Door RAP WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr
184. jury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones WARNING Take care during this procedure Sharp edges may be present that can cause injury DANGER Ex cuter cette proc dure avec pr caution La pr sence de bords tranchants peut entrainer des blessures AVVERTENZA procedere con cautela durante questa procedura Possono essere pre senti oggetti con bordi taglienti pericolosi VORSICHT Bei diesem Vorgang vorsichtig vorgehen damit keine Verletzungen
185. l a new unit LSU PL 6 10 Item 1 6 If necessary install a new PBA main PL 1 10 Item 9 March 2004 Status Indicator RAPs Work Centre M20 Family 2 5 6 1 8 1 8 2 Bypass Jam RAP The machine has detected a failure to feed from the bypass tray Procedure WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names Refer to Wiring Diagram 4 Perform the following 1 Check that the area at the bypass tray is clean and that the PMO actuator MP moves 8 3 Duplex Jam RAP The machine has detected the paper jam during duplex printing Procedure WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names Refer to Wiring Diagram 3 Perform the following 1 Open the right hand cover Remove all jammed paper freely PL 8 20 Item 12 2 Check that the paper path is clear and undamaged 2 Enter GP 1 Engine Test Mode Entry Use the sensor test to check the ME P
186. le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efectua tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones 3 Image Quality RAPs IQ1 Blank Copies RAP WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peu
187. legare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi March 2004 Work Centre M20 Family Introduction Translation of Warnings onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones IQ3 Blurred Image From the Scanner RAP WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi ch
188. ll P O PL 8 25 Item 1 16 022N01600 Rubber Pickup 17 130N01337 Rubber Pickup Small 18 Shaft Pickup CST P O PL 8 25 Item 1 19 Shaft Pin ADF P O PL 8 25 Item 1 20 Sheet PTL Path P O PL 8 25 1 21 Shaft SUB Pickup P O PL 8 25 Item 1 22 Ring 104 REF PL 31 10 6 23 Ring E ID5 REF PL 31 10 6 24 PMO Bearing Shaft Not Spared 25 120N00393 Actuator No Paper 26 007N01193 Gear Pickup AP 8 0011 A NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more commonly recognised part names March 2004 Parts List Work Centre M20 Family 5 23 PL 8 25 PL 9 10 Toner Drum Cartridge amp Fuser Item 1 Rol Part 113R00671 106R01048 106R01047 007 01118 002 02278 002 02277 Description ELA Unit OPE Drum Set ELA Toner Unit Set XE ELA Toner Unit Set NASG XCL PMO Lock Drive ELA HOU Fuser Assembly XE REP 10 1 ELA HOU Fuser Assembly NASG XCL REP 10 1 ELA HOU Drives Assembly REF PL 4 20 Item 1 PBA Bias Not Spared Cover Sheet Connector Not Spared NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more commonly recognised part names 7 8 0021 Parts List March 2004 PL 9 10 5 24 Work Centre M20 Family PL 10 10 Exit Assembly Item 1 2 JO a 12 13 14 15 16 17 18 19 20
189. lor Transmission Modem speed 33600 28800 21600 19200 14400 12000 Transmission Speed Approximately 3 sec 33 600 bps Effective Scanning Width 8 2 inches 208 mm Halftone 256 Levels Paper Capacity Input DADF Duplex Automatic Document Feeder 50 Sheets Work Centre M20 Family 6 17 attached 759 Weight About 26Kg with CRU FAX Mode Standard Fine Super Fine Halftone Acoustic Noise Less than 65 dB Copy Printing scanning mode Memory 8MB Power Rating AC 100VAC 127VAC 15 50 60Hz 3Hz AC 220VAC 240VAC 15 50 60Hz 3Hz Table 4 Scanner specifications Power Consumption Avg 500W h Print Copy Item Description i 35W h SEH ac SC 1 2 Ghz 128 MB RAM 220MB Hard Disk Flatbed With DADP mmen m entium 2 i GE Ee S Speed Mono Binary 0 68 msec line Color Mono Gray 2 5 msec equirement line ini Requi Pentium 111 Mhz 32 MB RAM 100MB Hard Disk EE a S EE Device Color CCD Charge Coupled Device Module LCD 20 characters X 2 lines March 2004 General Procedures and Information GP 11 Table 4 Scanner specifications Item Description Interface IEEE1284 ECP Support USB without HUB Mode Compatibility TWAIN Standard WIA TBD Optical Resolution H X V 600 X 600 dpi Interpolation Resolution Max 4800 dpi Halftone 256 Levels Effective Scan width 8 2 inches 208 mm Table 5 Copy specifi
190. m monly recognised part names Refer to Wiring Diagram 3 Perform the following 8 1 Door Open RAP The machine has detected that the right hand side cover is open When the cover is open there is no 5V supply to the LSU laser unit and no 24V supply to the main motor the LSU laser unit motor or the HVPS Procedure WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names Refer to Wiring Diagram 4 Perform the following 1 Close the right hand cover 1 Switch off the machine Switch on the machine 2 2 Test Mode Entry Use the sensor test to check the CBF harness 2 CBF harness switch micro PL 4 15 Item 20 controls the 5V supply to the unit LSU Enter GP 1 Engine Test Mode Entry Use the sensor test to check the CBF har 3 If necessary install new components ness switch micro and install a new part as necessary CBF harness switch micro PL 4 15 Item 20 3 Ifthe fault persists check the CBF harness LSU PL 6 10 Item 2 Repair or install a new PBA main PL 1 10 Item 9 part as necessary 4 Enter GP 1 Engine Test Mode Entry Use the LSU motor test to check the operation of the LSU motor 5 Instal
191. m 10 PMO lever jam remove Jam clearance latch PL 4 25 Item 21 PMO cam jam remove Jam clearance cam PL 4 25 Item 22 Work Centre M20 Family March 2004 6 37 General Procedures and Information GP 20 DADF Refer to Table 5 SCF Refer to Table 8 Table 5 DADF Table 8 SCF Part name Commonly known as PL Ref Part name Commonly known as PL Ref ELA HOU DADF DADF assembly PL 5 10 Item 1 ELA unit SCF Tray 2 assembly PL 7 15 Item 1 MEA unit cover open DADF top cover assembly PL 5 10 Item 2 Rubber roller pickup Nudger roll PL 7 15 Item 9 Roller REGI Registration roller PL 5 10 Item 6 Rubber roller pickup S Small nudger roll PL 7 15 Item 10 PBA SUB REGI Registration sensor PL 5 10 Item 9 PMO M actuator no paper Paper empty sensor actuator PL 7 15 Item 12 MEA unit TX stacker Input tray assembly PL 5 10 Item 18 Feed roller SCF MC2 Tray 2 feed roll PL 7 15 Item 18 PBA SUB length Length detect sensor PL 5 10 Item 24 PBA SUB exit SEN Tray 2 empty sensor PL 7 15 Item 22 ELA HOU DADF SUB Document transport assembly PL 5 10 Item 31 ELA HOU solenoid SCF2 Tray 2 feed solenoid assembly PL 7 15 Item 23 PBA SUB sensor IF DADF sensor PWB PL 5 11 Item 4 Solenoid pickup Tray 2 feed solenoid PL 7 16 Item 18 ELA HOU duplex motor DADF duplex motor assembly PL 5 11 Item 10 Motor step SCF
192. m 2 54 3mm Horizontal dark Developer P O ELA toner unit PL 9 10 band roller set Item 2 51 9mm Black side contami Cleaning roller P O ELA toner unit PL 9 10 nation transfer fault set Item 2 56 6mm Black spot White Transfer roller Transfer roller PL 8 10 spot Item 33 82 6mm Black side contami Heat roller P O ELA HOU PL 9 10 nation fuser assembly Item 4 91 1mm Kind of abnormal Pressure roller P O ELA HOU PL 9 10 image fuser assembly Item 4 Install new components as necessary 3 If the defect appears to be fuser related ensure that the paper tray settings match the paper or media size in the trays Also ensure the media is within specification refer to GP 22 Paper and Media Specifications Image Quality 1Q16 Work Centre M20 Family IQS 1 Solid Area Density Documents Test pattern 82P524 and the solid area density scales 82E8230 SIR 542 00 or 82P448 SIR 494 00 Specification Make a copy of the test pattern Compare the copy with the solid area density scale The den sity of the 1 0 areas on the copy of the test pattern must be as dark or darker than the 0 8 ref erence on the solid area density scale Refer to Figure 1 SIR 542 00 All densities are contrast SIR 494 00 AP 1 0139 A Figure 1 Solid area density March 2004 Image Quality Work Centre M20 Family 3 13 IQS 1 IQS 2 Skew Documents Test pattern 82P524 Specification Refer to Table 1 Skew specifications
193. may result in vertical lines Ensure the customer is using media that is within specification Refer to GP 22 5 fuser may be contaminated Make 10 blank copies If necessary install a ELA HOU fuser assembly PL 9 10 Item 4 6 Refer to Wiring Diagram 3 Check that the harness between the unit LSU and the PBA main is correctly and securely connected 7 Install new components as necessary e ELA OPC unit set PL 9 10 Item 1 ELA toner unit set PL 9 10 Item 2 Unit LSU PL 6 10 Item 1 Image Quality 1Q3 IQ4 March 2004 Work Centre M20 Family 1Q5 Vertical White Lines RAP Use this RAP when there are white lines along the process direction as shown in Figure 1 Digital Prir ter L igital ter L igital Prir ter Digital Prir ter L igital ter AP 1 0130 A Figure 1 Vertical white lines Procedure WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names 1 Remove the ELA toner unit set PL 9 10 Item 2 and the ELA OPC unit set PL 9 10 Item 1 Ensure there are no obstructions that block the unit LSU from imaging the ELA OPC unit set IQ6 Light Image RAP Use this RAP when the mach
194. minal of OP AMP 324 As the voltage higher than the inverting reference voltage of OP AMP which is set to R506 and R507 OP AMP output turns high This output sends IB to the TRANS auxiliary wire through cur rent restricting resistance Q502 via R509 and C504 and Q502 turns on When the current is accepted to Q502 Ic increases to the current proportional to time through the T201 primary coil and when it reaches the Hfe limit of Q502 it will not retain the on state but will turn to off As Q502 turns off TRANS N1 will have counter electromotive force discharge energy to the secondary unit sends current to the load and outputs DEV voltage through the high voltage output enable which is comprised of Regulation circuit Refer to Figure 7 R514 pem 7 eoe sv E 81 4 T li C506 20501 Wy ice 980 om R506 C505 SIR EN MGRU2W 100 mar 2kv 680 V1 supe BIAS PWM K aray I II 9 20501 CONO3W24 403A R519 M 7407 22 R503 504 C501 3g ong 104 em n e L MGR1I2W12MF se R502 Sen be MGRVAN 50K nor AP 1 0124 A Figure 7 Bias signal THV THV THV Output Unit Transfer output unit is the transfer output control signal PWM LOW ACTIVE When THV PWM LOW signal is received Q203 turns on and the steady voltage will be accepted to the non inverting terminal of OP AMP 324 As the voltage is higher than the i
195. mited approximately 12 seconds and unlimited time When 12 sec is selected the machine switches to receiving mode as soon as it detects a period of silence When unlimited is selected the machine waits until the answering opera tion is concluded even though a period of silence is detected After the answering operation is concluded the machine switches to receiving mode Flash Upgrade The firmware upgrade procedure has two methods local and remote For more information refer to Firmware Upgrade GP 8 Reset Passcode Use this procedure to either disable or reset the system administrator passcode March 2004 Work Centre M20 Family General Procedures and Information GP 6 GP 7 Reports Purpose To give details of the information available in the reports function in service mode GP 3 Protocol List Fax Phonebook Fax TX Fax RX Schedule Jobs System Data e Fax TX Confirm Junk Fax List Email TX Report Billing Counters Connect Page User Auth List Print All Reports Protocol List This list shows the sequence of the CCITT group 3 T 30 protocol during the most recent send Facsimile Information Field Sending Receiving Name of signal data described in hexdecmal code Facsimile Control Field in ASCII code PROTOCOL DUMP LIST MAR 20 1999 06 35 S R _FCF WJFIF DATA ASCII FIF data described NSF 61005820003380140200001302090018010000 CSI 202020202020202020
196. nage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones WARNING Avoid exposure to laser beam Invisible laser radiation DANGER Eviter toute exposition au faisceau laser Radiation laser invisible AVVERTENZA Evitare l esposizione al fascio laser Radiazioni laser invisibili VORSICHT Nicht in den Laserstrahl blicken Verletzungsgefahr durch unsichtbare Laserstrahlung AVISO Evite la exposici n al rayo l ser Radiaci n de l ser invisible 8 1 Door Open RAP WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that d
197. ncore chaud AVVERTENZA Non toccare il fonditore quando caldo VORSICHT Fixierbereich erst ber hren wenn dieser abgek hlt ist AVISO No toque el fusor mientras est caliente 10 2 Open Heat Error RAP WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles p
198. nd this is the protocol used by most PC s to transmit data to a printer ECP mode is an improved protocol for the com munication between a PC and peripherals such as a printer and a scanner and it provides high speed two way data communication ECP mode provides two cycles in the two way data trans mission data cycle and command cycle The command cycle has two formats Run Length Count and Channel Addressing RLE Run Length Count has high compression rate 64x and it allows real time data compression that is useful for the printer and scanner that need to transmit large raster image that has a series of same data Channel Addressing was designed to address multiple devices with single structure For example like this system when the fax printer scanner have one structure the parallel port can be used for other purposes while the printer image is being processed This system uses RLE for high speed data transmission PC control signal and data send receive tasks such as PC data printing high speed uploading of scanned data to PC upload download of the fax data to send or receive and monitoring the System control signal and overall system from PC are all processed through this part USB Interface Option Direct Kit Network Kit Refer to Figure 1 General Procedures and Information GP 14 GP 15 March 2004 Work Centre M20 Family USB 2 0 Serial USB Configuration Local Bus USB Transcei
199. necte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones 20 3 Fax Faults Without a Message RAP WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar l
200. neral Procedures Information This section contains all other procedures product specifications and general information Section 7 Wiring Data This section contains the wiring diagrams Section 8 Accessories This section contains details of any accessories that the machine may have March 2004 f Introduction Work Centre M20 Family iii About This Manual Warnings Cautions And Notes WARNING A translated version of all warnings is in Translation of Warnings Follow the service procedure exactly as written Use of controls or adjustments other than those specified in this manual may result in an exposure to invisible laser radia WARNING tion During servicing the invisible laser radiation can cause eye damage if looked at EMT directly A warning is used whenever an operating or maintenance procedure practice condi tion or statement if not strictly observed could result personal injury CAUTION A caution is used whenever an operation or maintenance procedure practice condition or statement if not strictly observed could result in damage to the equipment NOTE A note is used where it is essential to highlight a procedure practice condition or state ment The following are examples of the symbols that are used in this manual for an electrostatic damage caution and laser radiation warning ESD caution symbol CAUTION Certain components in this product are susceptible to damage from electrostatic discharge
201. nger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones WARNING Take care during this procedure Sharp edges may be present that can cause injury DANGER Ex cuter cette proc dure avec pr caution La pr sence de bords tranchants peut entrainer des blessures AVVERTENZA procedere con cautela durante questa procedura Possono essere pre senti oggetti con bordi taglienti pericolosi VORSICHT Bei diesem Vorgang vorsichtig vorgehen damit keine Verletzungen durch die scharfen Kanten entstehen AVISO Tenga cuidado al efectuar este procedimiento Puede haber bordes afilados que podr an producir lesiones REP 4 3 PMO Cover Exit Rear WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do
202. not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones WARNING Take care during this procedure Sharp edges may be present that can cause injury DANGER Ex cuter cette proc dure avec pr caution La pr sence de bords tranchants peut entrainer des blessures AVVERTENZA procedere con cautela durante questa procedura Possono essere pre senti oggetti con bordi taglienti
203. nstall a new SMPS HVPS PL 1 10 Item 4 Status Indicator RAPs March 2004 10 1 10 2 2 12 Work Centre M20 Family 10 3 Over Heat Error RAP The fuser temperature has risen above the normal level Although the fuser unit can return to a normal operating temperature the fuser unit may consequently be damaged Procedure WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury WARNING Do not touch the fuser while it is hot NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names Refer to Wiring Diagram1 Wiring Diagram 2 and Wiring Diagram 3 Perform the following 1 Switch off the machine Remove the fuser unit Examine the ELA HOU fuser assembly for heat damage necessary install a new ELA HOU fuser assembly PL 9 10 Item 4 Check that the thermistor is connected to the PBA main Check that the thermistor is clean and in good contact with the fuser roll Check the wiring from CN5 on the PBA main to CON101 on the SMPS HVPS If necessary installa new PBA main PL 1 10 Item 9 mb oh If necessary installa new SMPS HVPS PL 1 10 Item 4 20 1 Fax Error Messages RAP This is the set of messages displayed when the machine encounters fax problems The mes sages are listed alphabet
204. nt range of LIU is 12mA 9mA Adapting CTR21 standard the regulation limits to 60 CURRENT flow through the terminal Therefore select for EU PIT Option to connect necessary items then the current through LIU will not exceed 60mA CTR21 Standard Europe 12mA 60mA OTHER Standard U S 12mA 90mA DC has a character to pass through the LINE And with Q1 VN2410 GATE section s LINE INPUT current and Q1 Source connection to R20 can be decided as follows VDCR VL1 ILINE X R20 VDCR Tip Ring CD Voltage ILINE Current flow VL1 Line Input Voltage VL1 VBD1 VCE Q2 VDS Q1 AC Matching Part Basic LIU s AC IMPEDANCE is 600 and uses R47 48 and C36 to possibly control combined IMPEDANCE U S Usage A terminal IMPEDANCE 600W 30 CTR21 A Terminal IMPEDANCE 270 750W 150nF Dialer Part MF Dial DTMF Dialing is controlled by MODEM and should be selected by appropriate LEVEL and on off time output based on each countries own national specification Frequency Tolerance 1 596 High Group 1209 1336 1477 1633Hz Low Group 697 770 852 941 Hz Refer to Table 1 Table 1 Tolerance levels U S Usage CTR21 High Frequency Level 9 042 0 2 5 7 0 1 0 2 0 Low Frequency Level 9 0 1 0 2 0 11 0 2 5 2 0 DP Dial Controls from MAIN through DP Terminal for U S Usage set time to DF signal of 40 60 M B DP signal is made of U6 pcb817 The DC current which flows through Q2 Bas
205. number of the contact point the cus tomers fax number the model name and the serial number Billing Counters Displays the following counters Total impressions Toner impressions Drum impressions DADF scanned pages Platen scanned pages Replaced toner Replaced drum Send Level The transmission signal level can set Typically the level should be under 12dBm NOTE The send fax level is set at the optimum level during manufacture Do not change the send fax level arbitrarily Dial Mode M20i only Refer to GP 4 Switch Test Use this feature to test all keys on the operation control panel The result will be displayed on the LCD window each time you press a key Modem Test Use this procedure to hear various transmission signals to the telephone line from the modem and to check the modem If no transmission signal is heard the modem part of the main board is defective DRAM Test Use this procedure to test the machines DRAM The result will appear on the LCD display If the memory is working correctly the LCD will display Ok ROM Test Use this procedure to test the machines ROM The result and the software version will appear on the LCD display FLASH VER 1 00 V General Procedures and Information GP 6 March 2004 Work Centre M20 Family 1 00 Pattern Test This procedure is used during manufacturing only Not to be used during service Shading Test
206. nverting reference voltage of OP AMP OP AMP output turns high The 24V power adjusts the electric potential to ZD201 and ZD202 sends IB to TRANS auxil iary wire through current restricting resistance R215 via R212 and C204 and eventually Q204 will turn on When the current is accepted to Q402 Ic increases to the current propor tional to time through the T201 primary coil and when it reaches the Hfe limit of Q204 it will not retain the on state but will turn to off As 0402 turns TRANS N1 will have counter electromotive force discharge energy to the secondary coil sends current to the load and outputs THV voltage through the high voltage output enable which is comprised of Reg ulation circuit The output voltage is determined by the DUTY width 0203 switches with PWM DUTY cycle to fluctuate the output by fluctuating the OP AMP non inverting end VREF 1 0123 electric potential and the maximum is output at 0 and the minimum at 100 out put unit is THV EA L enable Figure 6 MHV signal General Procedures and Information March 2004 GP 16 Work Centre M20 Family When is L Q302 turns on and the VCE electric potential of Q302 will be formed and The changes in transfer output required by each load is controlled by PWM DUTY sends IB to TRANS auxiliary wire through R311 C305 and VR302 via current restricting resis tance R314 and eventually Q303 will turn on When the current is a
207. o not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali Introduction Translation of Warnings March 2004 Work Centre M20 Family VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones 8 2 Bypass Jam RAP WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can caus
208. o the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones 5 2 Document Jam RAP WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving p
209. ode processing for text photo mixed document 4 EDF data memory 2x4Kx16bits 128Kbits internal 5 LAT data memory 4x4Kx16bits 256Kbits external Scaling of Input Image 1 Scaling factor Horizontal direction 25 800 by 1 unit Vertical direction 25 100 by 1 unit 2 Scaling data memory 2x8Kx8bits 128Kbits internal Intelligent Scan Motor Controller 1 Automatic acceleration deceleration uniform velocity 2 Data memory 256x16bits 4Kbits internal Auto Run Automatic CLK LINE line processing start control and TG line scan start control signal gen eration 1 Available re synchronization of TG signal 2 Programmable TG s period amp CLK LINE s occurrence number Processed Data Output Format in DTM Data Transfer Module 1 DMA mode Burst On demand mode 2 CDIP I F LINE SYNC PIXEL SYSNC PIXEL DATA 7 0 36 General Purpose Input Output 8 GPO 28 GPIO Black White Reversion and Image Mirroring Support Refer to Figure 2 and Figure 3 ADDR BUS DATA BUS DMA Controller SPGPm DATA MEMORY Image Processor Scan Motor AFE 12bit ADC 12bit R G B Analog Signal Scanner nix A nTx_B DOCUMENT IMAGE AP 1 0112 A Figure 2 External interface with CIP4 March 2004 Work Centre M20 Family 6 25 General Procedures and Information GP 14 AIN PLTG A EXT SRAM H AID converter AFE_CIP4 SRAM 1024x8 R G B SRAM 15 0 S
210. olutions Go to the relevant procedure Squeaks Unusual Noise from the ELA HOU Scanner Assembly Squeaks Possible causes are Contamination of the bushes and drive shafts Solution Clean the components Plastic bushes should be cleaned and lubricated Install new components as necessary Bearing in cooling fans Solution Install new components as necessary Mis adjusted or worn drive belts Solution Install new components as necessary Mis aligned or damaged parts Solution Check for parts that are damaged or out of position Adjust the components if appropriate Install new components as necessary Noise from the DADH input tray document guides March 2004 Work Centre M20 Family 2 17 Status Indicator RAPs OF3 OF4 Solution Clean the DADH input tray in the area beneath the input guides Unusual Noise from the ELA HOU Scanner Assembly Possible causes are Mis aligned or damaged parts Defective motor driver Solution Check the position of the motor step scan and associated gears PL 14 11 e Ensure the ELA HOU CCD module PL 14 11 Item 16 moves freely Install new components as necessary Status Indicator RAPs March 2004 OF4 2 18 Work Centre M20 Family Image Quality RAPs Je Blank Gopies E 3 3 3 Image Quality IQ2 Black Copies From the Scanner 3 3 IQ3 Blurred Image From the Scanner RAP 3 4 IQ4 Vertical Black Lines or Bands RAP 3 4
211. ons Speed Dials New Edit Delete 7 Press Enter to select the required option Group Dials New Edit MSG Confirm On Err On Off Table 1 M20i user mode settings Auto Reduction On Off Function Item Option Prefix Dial Fax Machine Setup Tray 1 Size Letter A4 Legal Folio Auto Report On Off Tray 2 Size Letter A4 Legal Folio ECM mode On Off Bypass Size Letter A4 Legal Folio A5 Statement Redials 0 13 Power Save On Off Ring to Answer 1 7 Machine Timeout 15 30 60 180 Off Redial Term 1 15 Stamp RX Name On Off Ringer Low Med High Off Alarm Sound On Off Junk Fax Setup On Off Key Sound On Off Secure Receive On Off Print Speaker Control On Off Comm Fax Tray Tray 1 Tray 1 amp Tray 2 All Language English French German Italian Spanish Dial Mode Tone Pulse Portuguese Dutch Danish Finnish Nor SOUL Swedish Russian System Admin Password Protect No Yes Localisation Inch MM Select Country UK Greece Turkey Ukraine Slovenia Russia Yugoslavia Australia HongKong NewZealand SouthAfrica Israel Korea K Xerox China India Asia_STD Malaysia Singapore USA Canada Brazil Chile Columbia Mexico Argentina Peru Ger many France Austria Switzerland Italy Spain Portugal Norway Finland Sweden Netherlands Denmark Belgium Hungary Poland Czech Romania Bulgaria Ire land USB Mode Fas
212. orm the following 1 Switch off the machine Remove the ELA HOU fuser assembly Check that the ther mistor is clean and is in good contact with the fuser roll 2 Goto GP 1 Perform Fuser Temp Check to verify the condition of the thermistor 2 Check the wiring from the thermistor to the PBA main 3 Goto GP 1 Perform Fuser Control Test to verify the heating lamp 3 Check for continuity between the two pins the ELA HOU fuser assembly where the 4 Switch off the machine Remove the ELA HOU fuser assembly Check that the ther fuser connects to the IPR terminal fuser PL 4 15 Item 28 mistor is in good contact with the fuser roll and is clean NOTE A cold fuser will have a resistance of approximately 46 ohms 220V 240V or 5 Check for continuity between the two pins on the ELA HOU fuser assembly where the approximately 14 ohms 110V fuser connects to the IPR terminal fuser PL 4 15 Item 28 4 Check that there is continuity through the fuser heater and across the over temperature NOTE A cold fuser will have a resistance of approximately 46 ohms 220V 240V or cut out approximately 14 ohms 110V 5 If necessary install a new ELA HOU fuser assembly PL 9 10 Item 4 6 If necessary install a new ELA HOU fuser assembly PL 9 10 Item 4 6 If necessary install a new PBA main PL 1 10 Item 9 7 ff necessary install a new PBA main PL 1 10 9 7 If necessary install a new SMPS HVPS PL 1 10 Item 4 8 If necessary i
213. orts GP 7 System Data Email TX Report Billing Counters Print All Reports includes Help List General Procedures and Information GP 3 March 2004 6 10 Work Centre M20 Family GP 4 Fax Setup GP 5 Memory Clear Purpose Purpose To give details of the fax setup that can be selected in service mode GP 3 To give details of the memory clear procedure that can be performed in service mode GP 3 Dialing Mode Clear All Memory Dialing Mode Clear All Memory Select the dialing mode according to the users line status This function resets the system to the default factory setting All the values will be returned to TONE Electronic dialing modern systems default values and all the information which has been set by the user will be lost A memory PULSE Mechanical dialing older systems clear must be performed if a new main PBA has been installed Perform the following 1 Enter service mode GP 3 2 Select MEMORY CLEAR 3 Press the ENTER button 4 Select the relevant country 5 Press the ENTER button March 2004 General Procedures and Information Work Centre M20 Family 6 11 GP 4 GP5 GP 6 Maintenance Purpose To give details of the maintenance tests or procedures that can be performed in service mode GP 3 Serial Number Clean Drum New Drum e Notify Toner Low Billing Counters Send Level Dial Mode M20i only Switch Test Modem Test DRAM Test
214. ot need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones OF4 Audible Noise RAP WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter
215. pears only the copy mode perform the following IQ2 Black Copies From the Scanner RAP Use this RAP when the scanner produces black copies but on line printing is normal Procedure WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names Refer to Wiring Diagram 1 Perform the following 1 Go to GP 6 Maintenance and perform the Adjust Shading procedure 2 Check the ribbon cable between the ELA HOU CCD module and the PBA main If nec 1 Ensure the scanner cover is closed Room illumination can be transmitted through thin essary install a new CBF signal CCD FFC PL 14 11 Item 17 originals 8 f necessary install a new ELA HOU CCD module PL 14 11 Item 16 2 Goto GP 6 Maintenance and perform the Adjust Shading procedure 4 f necessary install a new PBA main PL 1 10 Item 9 If the fault appears in all modes perform the following 1 Examine the ELA toner unit set PL 9 10 Item 2 and the ELA OPC unit set PL 9 10 Item 1 Ensure they are free from all packing or sealing material 2 Shake the ELA toner unit set If there is a slight improvement in the image the ELA toner unit set is empty Install a new ELA toner unit set
216. per going out of the set with the exit sensor assembled to the actua tor attached to the frame If CPU does not turn back high a while after the paper hits the exit sensor CPU detects this and inform as Paper Jam2 red LEDs on the OP panel will turn on LSU Circuit Polygon Motor Unit actuated by 24V The polygon motor inside LSU rotates by the PMOTOR signal When it reaches the motor constant velocity section through the initial transient transient response section it sends the nLREADY signal to the CPU The clock pin is the pin that receives clock of the required frequency when LSU uses external CLK as the motor rotational frequency Currently the external clock circuit is located in the HVPS and 1686Hz 6 9083MHz crystal frequency 212 74HC4060N IC is used as the rota tional frequency of the polygon motor Laser Unit actuated by 5V After laser is turned on by nLD ON signal it is reflected by 6 mirrors polygon mirror attached to the polygon motor and performs scan in horizontal way When the laser beam hits the corner of the polygon mirror it generates nHSYNC signal pulse and the CPU forms the left margin of the image using this signal horizontal synchronous signal Fan Solenoid Actuation Circuit The fan actuation circuit its power using NPN TR When it receives FAN signal from the CPU The TR will turn on to make the voltage supplied to the fan to 24V in order to actuate the fan The sol
217. personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones WARNING Take care during this procedure Sharp edges may be present that can cause injury DANGER Ex cuter cette proc dure avec pr caution La pr sence de bords tranchants peut entrainer des blessures AVVERTENZA procedere con cautela durante questa procedura Possono essere pre senti oggetti con bordi taglienti pericolosi VORSICHT Bei diesem Vorgang vorsichtig vorgehen damit keine Verletzungen durch die scharfen Kanten entstehen AVISO Tenga cuidado al efectuar este procedimiento Puede haber bordes afilados que podr an producir lesiones REP 1 2 PBA Main WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d
218. r supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names Refer to Wiring Diagram 3 Perform the following 1 Add paper to the paper tray Refer to Wiring Diagram 3 Perform the following 2 f necessary enter GP 1 Engine Test Mode Entry and check FE This is the paper entry 1 Remove all of the jammed paper from the exit area sensor part of the PBA SUB feed amp P EMP SEN PL 8 25 Item 12 2 Open the right hand cover Remove all paper 3 If necessary install a new PBA main PL 1 10 Item 9 3 Check that the paper path is clear 4 Enter GP 1 Engine Test Mode Entry Use the sensor test to check OB This is the PBA SUB bin full sensor PL 10 10 Item 20 5 Enter GP 1 Engine Test Mode Entry Check that the motor step MCK2 main fuser motor runs Install new components as necessary PL 4 20 6 If necessary install a new PBA main PL 1 10 Item 9 Status Indicator RAPs March 2004 8 6 8 7 2 8 Work Centre M20 Family 9 1 Install Cartridge RAP The toner cartridge is not installed or the CRUM in the toner cartridge is not in good contact with the PMO Housing Terminal MC2 Procedure WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need ele
219. r U AP 8 0023 A 31 Spring Clutch P O PL 4 15 Item 1 NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more commonly recognised part names March 2004 Parts List Work Centre M20 Family 5 7 PL 4 15 PL 4 20 Drives Assembly Item Part Description 1 002N02289 ELA HOU Drive Assembly REP 4 1 2 127N07298 Motor Step MCK2 Main 3 152N11554 CBF Harness Fuser Motor 4 127N07299 Motor DC MCK2 BLDC 5 152N11555 CBF Harness Feed Motor 6 Gear Exit U P O PL 4 20 Item 1 7 Ring C P O PL 4 20 Item 1 8 IPR Link Duplex P O PL 4 20 Item 1 9 Gear Swing DRV 34 17 P O PL 4 20 Item 1 10 Gear 31 19 P O PL 4 20 Item 1 11 Gear 71 23 P O PL 4 20 Item 1 12 Gear DEV DRV P O PL 4 20 Item 1 13 PMO DEV Coupling P O PL 4 20 Item 1 14 Gear 86 23 P O PL 4 20 Item 1 15 Gear RDCN Feed Inner P O PL 4 20 1 16 Gear Hub Clutch P O PL 4 20 Item 1 17 Gear RDCN Feed Outer P O PL 4 20 Item 1 18 Gear Feed DRV P O PL 4 20 Item 1 19 Gear OPC 53 37 P O PL 4 20 Item 1 20 Gear OPC DRV P O PL 4 20 Item 1 21 Gear OPC P O PL 4 20 Item 1 22 IPR BRKT Break P O PL 4 20 Item 1 23 Gear Fuser DRV Outer P O PL 4 20 Item 1 24 Gear Fuser DRV Inner P O PL 4 20 1 25 Ring E REF PL 31 10 6 26 Brake Gear P O PL 4 20 Item 1 27 Fan P O PL 4 20 Item 1 28 IPR BRKT Motor P O PL 4
220. r re dial attempts Check that the remote Fax is on line and try again No Not Assigned No number has been assigned for the speed dial location selected Assign a number to this location or dial the number manually Power Failure During a power off period the machine has lost its user memory Check that the backup bat tery on the Main PBA is holding its charge of about 3V If necessary install a new PBA main PL 1 10 Item 9 March 2004 Work Centre M20 Family Status Indicator RAPs 10 3 20 1 Retry Redial This indicates that the machine is waiting to re dial Press Start to re dial immediately or press Stop to cancel the re dial procedure 20 2 Scan to E mail Error Messages RAP This is the set if messages displayed when the machine encounters scan to e mail problems The messages are listed alphabetically together with any recommended action Please note that service actions are limited Messages WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names Address Book Full The address book has reached the maximum number of entries Clear any unused entries Authentication Failure Either the ESMTP account identity or the pa
221. r the acronym list and cross reference lists of more com monly recognised part names 1 PECO Ur de e Remove the ELA toner unit set PL 9 10 Item 2 and the ELA OPC unit set PL 9 10 Item 1 Remove the ELA HOU side cover assembly REP 8 1 Remove the ELA HOU drive assembly REP 4 1 Remove the ELA HOU fuser assembly REP 10 1 Remove the unit LSU REP 6 1 Remove the PMO exit cover rear REP 4 3 Remove the PMO dummy base frame PMO cam jam remove and MEA unit cover front assembly Figure 1 Work Centre M20 Family March 2004 4 11 Repairs and Adjustments REP 4 3 REP 4 4 1 1 Remove 5 screws Remove 1 screw then the cover bracket motor 1 0065 Figure 2 Cover bracket motor removal Prepare to remove the ELA HOU frame main assembly Figure 3 Remove the PMO lock developer N e c o gt 16 e 22 c 5 5 lt ote ui gt gt gt SEN EE 2 0250 gt E co o WY owy AN V GA GC D 1 AP 1 0064 A N 2 F 52 9 ON ER Figure 1 Dummy base frame removal ai o e 2 gt D XT o 2 gt lt 2 gt D 2 x O S 6 5 D gt o o o gt a 8 AP 1 0066 A Figure 3 Preparation March 2004 Repairs and Adjus
222. ranchants peut entrainer des blessures AVVERTENZA procedere con cautela durante questa procedura Possono essere pre senti oggetti con bordi taglienti pericolosi VORSICHT Bei diesem Vorgang vorsichtig vorgehen damit keine Verletzungen durch die scharfen Kanten entstehen AVISO Tenga cuidado al efectuar este procedimiento Puede haber bordes afilados que podr an producir lesiones REP 4 1 ELA HOU Drive Assembly WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apa
223. rch 2004 Wiring Diagrams 7 10 Work Centre M20 Family 8 Accessories ACC 1 PBA Foreign Device 8 3 March 2004 Accessories Work Centre M20 Family 8 1 Accessories March 2004 8 2 Work Centre M20 Family ACC 1 PBA Foreign Device Checkout Procedure Go to the OF3 Use Auxiliary Access RAP March 2004 Accessories Work Centre M20 Family 8 3 ACC 1 Accessories March 2004 ACC 1 8 4 Work Centre M20 Family XEROX EUROPE PUBLICATION COMMENT SHEET Please copy this master sheet and use it to help us to improve this publication We would like you to tell us about improvements to its accuracy format and quality Please give specific references i e page numbers and figure numbers and attach marked up photocopies wher ever possible If you have identified a solution please include your suggestions with your reply Please also answer the customer satisfaction question set When you have completed the PCS send it by internal mail to the address below You will receive an acknowl edgement and feedback on your comments Please ensure that your name and CBU District location code are fully completed NAME JOB TITLE ENGINEER NUMBER CONTACT TELEPHONE NUMBER OPERATING COMPANY CBU DISTRICT LOCATION CODE DATE PRODUCT AND PUBLICATION PUBLICATION REVISION SOFTWARE REVISION LEVEL TITLE DATE PAGE NUMBER CUSTOMER SATISFACTION QUESTION SET COMMENT Plea
224. re parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones 4 Repairs and Adjustments REP 1 1 SMPS HVPS WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli Introduction Translation of Warnings March 2004 Work Centre M20 Family interventi che non richiedono elettricita L elettricita causare infortuni morte azi onare parti della macchina che possono causare lesioni
225. re rise it s resistance become about Zero ohm SMC Switched Mode Control The AC input voltage is rectified and filtered by BD1 and C10 to create the DC high voltage applied to the primary winding of T1 Q5 pin 1 is driven by the SMPS device IC2 IC2 auto starts and chops the DC voltage The U502 is PWM SMPS IC and has internally a SMC switched mode control IC and a MOSFET output stage The SMC IC has a auto restart with out a power supply for the IC and a thermal shutdown function and so on R4 R5 C11 D1 clamp leading edge voltage spikes caused by transformer leakage inductance The power secondary winding Pin 5 6 is rectified and filtered by D8 D9 L2 C33 C34 to create the 5V output voltage The bias winding Pin 9 8 is rectified and flittered by D2 and C12 to create U502 bias voltage The secondary output 5V is regulated through the path of the voltage divide by R34 R35 Fixed Temperature Control Fixed Lamp Control Circuit Refer to Figure 1 AC Power Live AC Neutral Logic UnitFuser On SMPS UnitDC Power CON502 PC3 AP 1 0127 A Figure 1 Fixed lamp control circuit The Concept of Fixed Lamp Control For fixed lamp control the logic unit fuser on control signal and SMPS unit DC power must be supplied This circuit turns on only when fuser on sends the signal and the DC power is supplied General Procedures and Information GP 19 March 2004 Work Centre M20 Family The following
226. red REP 14 1 ELA HOU CCD Module REP 14 1 CBF Signal CCD FFC P O PL 14 11 Item 31 REP 14 1 CBF Harness OPE PMO Cover Dummy Lower Not Spared REP 14 1 Holder M CCD UMAX Not Spared IPR Channel Base Frame Not Spared REP 14 1 Cover Scan Lower UMAX Not Spared ELA HOU Scan Motor REP 14 1 Bracket Motor Platen P O PL 14 11 Item 23 Motor Step Scan P O PL 14 11 Item 23 Gear Idle P O PL 14 11 Item 23 PMO Holder Belt P O PL 14 11 Item 23 Gear Timing P O PL 14 11 Item 23 Ring E REF PL 31 10 Item 6 Gear Reduction 73 37 P O PL 14 11 Item 23 ELA HOU Scan Lower P O PL 14 10 Item 1 NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more commonly recognised part names 31 1 30 23 24 30 AP 8 0004 A Work Centre M20 Family March 2004 5 27 Parts List PL 14 11 PL 31 10 Maintenance Installation Removal Kits Item 1 oak WP Part 497N00184 498N00364 098 01724 Description Foreign Interface Device Kit see NOTE 2 Network Accessory Kit 2nd Paper Tray Stand Repackaging Kit see NOTE 2 Common Hardware Kit see NOTE 2 NOTE 1 If necessary refer to GP 20 for the acronym list and cross reference lists of more commonly recognised part names NOTE 2 Part number unavailable at time of publication NO EXPLODED VIEW PROVIDED 8 0027 Parts List PL 31 10
227. res graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones WARNING Do not touch the fuser while it is hot DANGER Ne pas toucher au four pendant qu il est encore chaud AVVERTENZA Non toccare il fonditore quando caldo VORSICHT Fixierbereich erst ber hren wenn dieser abgek hlt ist AVISO No toque el fusor mientras est caliente 8 7 No Paper Add Paper RAP WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la pris
228. rn the fuser on signal to high forcefully shuts off Q3 In other words LM393 shuts off the heat lamp forcefully Paper Sensing Circuit Cover Open Sensing Cover Open Sensor is located on the right rear side of the printer In case the right cover is open it shuts 5V LSU laser unit and 24V main motor polygon motor of fixer LSU and HVPS that are supplied to each unit It detects the cover opening through CPU In this case the red LED of the OP Panel LED will turn on Paper Empty Sensing The paper empty sensor photo interrupter located inside bottom of the bin cassette detects paper with the actuator connected to it and informs the CPU of whether there is paper When there is no paper in the cassette the red LED of the OP panel LED will turn on to tell the user to fill the cassette with papers Work Centre M20 Family March 2004 General Procedures and Information GP 15 GP 16 Paper Feeding When the paper is fed into the set and passes through the actuator of the feed sensor unit transistor inside the photo interrupter will turn on nFEED signal will turn low and inform CPU that the paper is currently fed into the system CPU detects this signal and sprays video data after certain time related to paper adjustment If the paper does not hit the feed sensor within certain time CPU detects this and informs as Paper red LED on the OP panel will turn on Paper Exit Sensing The system detects the pa
229. roximately 100mm 4 inches 2 Ensure both ground harnesses are reconnected to the ELA HOU drive assembly REP 4 2 MEA Unit Rear Cover Parts List on PL 4 25 Removal WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury WARNING Take care during this procedure Sharp edges may be present that can cause injury CAUTION Before performing this procedure refer to General Disassembly Precautions GP 10 NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names 1 Remove the 6 screws securing the MEA unit rear cover Figure 1 1 Remove 6 screws AP 1 0001 A Figure 1 Screw removal 2 Separate the MEA unit rear cover from the ELA HOU base frame assembly and ELA HOU scanner assembly Figure 2 March 2004 Work Centre M20 Family Repairs and Adjustments REP 4 1 REP 4 2 2 777 a 2D 2 unit rear cover REP 4 3 PMO Cover Exit Rear Parts List on PL 4 25 Removal WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury WARNING Take
230. s I O device drivers system memory scanner printer motor driver PC I F and FAX transceiver controls the whole system The entire structure of the main circuit is as shown in Figure 1 General Procedures and Information March 2004 GP 12 6 20 Work Centre M20 Family LCD 20x2line MICOM LCD Drive Key Scan Scan to Email 24 Option DRIVER Backup logic SRAM Flash Kernel 1Mb X 2EA SDRAM 32Mb C20 M20 32Mb 48Mb M20i Option SDRAM 32Mb M20 Only Flash DIMM PS3 2 DIRECT KIT PCL6 USB IEEE1284 ARMS46ES ARM946ES CACHE 16K 2 NETWORK KIT NETWORK I F Net ONE PCL6USBIIEEE 1284 FAST SRAM 1Mbit AFE 24P M DEV H H SUPPLY V V BLADE SMPS HVPS 5V 24V 12V 24Vs Fuser MOTOR SDRAMC DRIVER STEP MOTOR A3977SLR A ROMC 5 ki BLDC MOTOR DMAC BP 11 LSU pe 2p SCF THERMISTOR GEU HCT gCODEC ae FAN Engine Control ExtendedGPIO ai MOTOR DEV_ID DRIVER IEEE1284 USB2 0 TONER TX T TONER RX
231. s of more com monly recognised part names 1 Remove the ELA HOU scanner assembly perform REP 14 1 steps 1 through 7 2 Remove the MEA unit cover PA exit assembly Figure 1 1 Remove 2 screws then the MEA unit cover PA exit assembly AP 1 0054 A Figure 1 MEA unit cover PA exit assembly removal Replacement Replacement is the reverse of the removal procedure Repairs and Adjustments March 2004 REP 10 3 4 32 Work Centre M20 Family REP 14 1 ELA HOU Scanner Assembly Parts List on PL 14 10 and PL 14 11 Removal 1 Remove 3 screws WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury WARNING Take care during this procedure Sharp edges may be present that can cause injury CAUTION Before performing this procedure refer to General Disassembly Precautions GP 10 NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names 1 Remove the ELA HOU DADF perform REP 5 1 steps 1 through 4 2 Remove the MEA unit rear cover REP 4 2 3 Disconnect the CCD and scan harnesses from the main PBA Disconnect 2 ground har nesses from the shield P main lower Figure 1 AP 1 0004 A Figure 2 Screw removal 1 5 Open the ELA HOU side cover assembly and the MEA unit
232. s tranchants peut entrainer des blessures AVVERTENZA procedere con cautela durante questa procedura Possono essere pre senti oggetti con bordi taglienti pericolosi VORSICHT Bei diesem Vorgang vorsichtig vorgehen damit keine Verletzungen durch die scharfen Kanten entstehen AVISO Tenga cuidado al efectuar este procedimiento Puede haber bordes afilados que podrian producir lesiones REP 8 1 ELA HOU Side Cover Assembly WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVIS
233. se submit a marked up photocopy of the relevant pages NOT APPLICABLE QUESTION VERY SATISFIED SATISFIED NEITHER SATISFIED NOR DISSATISFIED DISSATISFIED VERY DISSATISFIED DO YOU FIND THE MANUAL IS TECHNICALLY ACCURATE DO YOU FIND THE FORMAT OF THE MANUAL EASY TO USE WHAT IS YOUR OVERALL SATISFACTION LEVEL WITH THE MANUAL FOR OFFICE USE ONLY RECEIVED DATE PCS NUMBER MANAGER DUE DATE Global Knowledge amp Language Services Xerox Europe Enterprise Centre Bessemer Road Welwyn Garden City Hertfordshire AL7 1HE England Attention Phil Hayes XEROX EUROPE
234. sent This procedure will take approximately 15 minutes NOTE A sending fax machine must be set up as ECM mode The receiving machines memory must be set up as 100 If not the function will not operate successfully March 2004 Work Centre M20 Family General Procedures and Information GP 7 GP8 GP 9 Identify Sale Date M20i Only Purpose This function confirms the date that the consumer bought the product and the date that the product was first used The machine recognizes the first scan page count print page count etc Procedure Perform the following 1 Press MENU 1 9 3 in sequence NOTE The Firmware version will be displayed on the LCD GP 10 General Disassembly Precautions Purpose Use this procedure when disassembling and reassembling components Procedure The close proximity of cables to moving parts makes proper routing essential If components are removed any cables disturbed by the procedure must be restored as close as possible to their original positions Before removing any component from the machine note the cable rout ing that will be affected Whenever servicing the machine perform the following 2 Press 1 The LCD display shows the Updated date i Press 2 The LCD display shows Product first use date 1 Check to verify that documents not stored in memory 2 Unplug the power cord NOTE These contents are remembered after a memory delete Clear All Memory 3 Usea
235. set PL 9 10 Item 2 IQ10 Stains on Back of Paper RAP Use this RAP when the printed sheets have stains on the non image side of the paper Procedure WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names Perform the following 1 Check the transfer roller PL 8 10 Item 33 and clean as necessary 2 Check the paper path for dirt and contamination Clean as required 3 Check the ELA HOU fuser assembly and if necessary install a new ELA HOU fuser assembly PL 9 10 Item 4 Image Quality March 2004 1Q9 1Q10 3 8 Work Centre M20 Family 1Q11 Poor Fusing RAP Use this RAP when the image is improperly fused Procedure WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury WARNING Do not touch the fuser while it is hot NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names Perform the following 1 Ensure that the paper tray settings match the paper or media size in the trays Also en
236. splays the current state of the OPC Fuse NEXT Go to the next test TONER STATE TONER STATE CHECK Displays the Toner status NEXT Go to the next test TONER LOW CHECk This test does not check current toner status It only displays the stored value in the SDRAM when the side cover was last opened or at power on To update the stored value in the SDRAM open and close the side cover TONER LOW CHECK CHECK current toner status NEXT Go to the next test PAGE COUNTER INC PAGE COUNTER INC CHECK Increases the page count by 1 NEXT Go to the next test AIR TEMP CHECk AIR TEMP CHECK CHECK Displays the temperature of current working environ NEXT Go to the next test OPC FUSE STATE ment using ADC values See below for typical ADC conversions 200 11 12 178 0C 32F 155 10C 50F 121 25C 77F 73 50 122 5 MHV SUPLY 1350V Not to be used dur ON Switches on 1350V to the MHV Switches off the voltage to the MHV ing service manufacturing use only MHV ADC READ CHECK Reads and displays the MHV ADC value If the ADC Go to next test DEV SUPPLY 450v value is between 1 and 254 inclusive this indicates that the MHV value is good If the value is 0 or 255 the display will read Over The Range This indicates problems with the toner cartridge or drum cartridge or their respective contacts DEV SUPPLY 450V Not to be used dur ON Switches on 450V to the DEV Switches of the voltage to the DEV ing service manufacturing use only T
237. ssigned to it Assign email to the group or type the email manually using the Qwerty keyboard Recipient Address Failure The email address used has not been recognised Send Error SMTP The machine cannot connect to the server or has lost contact due to a network problem One of the following Simple Mail Transfer Protocol errors may have occurred SMTP SERVER DISCONNECTION The SMTP server has been disconnected SMTP ENCODER FAILURE The Network Interface Card has returned this error due to an encoding activity failure SMTP MEMORY FAILURE The Network Interface Card has returned this error due to a memory failure during the SMTP operation SMTP MISC ERROR The Network Interface Card has returned this error due to any miscellaneous failure during the SMTP operation SMTP DNS CONN Failure A DNS failure has occurred The Domain Name System has failed to translate the address cor rectly SMTP DNS Domain Error A DNS failure has occurred due to a domain error SMTP SERVER CONN Failure An SMTP connection failure has occurred March 2004 Status Indicator RAPs Work Centre M20 Family 20 2 20 3 OF1 Function Impossible RAP The selected mode is not supported in the current machine configuration Procedure WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury
238. ssword has failed the authentication process Ensure that the correct data in entered Authentication Required The mail server requires that authentication data is entered or the authentication process has been disabled Configured already The user is attempting to configure a group that has already been configured Connection Failure There has been a communication or network failure during the SMTP or ESMTP operation Email Associated Cannot Delete The user has attempted to delete an address book entry that is associated with group mail Remove the group mail association then remove the entry Empty Address Book The user has attempted to retrieve an address while the address book is empty Enter Again The user has attempted to enter an invalid group number Entry Already Exists The user has attempted to enter an address that already exists in the address book Group Empty The user has attempted to delete a number from a group that is already empty Status Indicator RAPs 20 1 20 2 March 2004 Work Centre M20 Family Group Full The user has attempted to enter a number into a group that is full Try deleting unused num bers Invalid Email ID The user has attempted to enter an invalid email ID Expamples are Spaces in the ID Invalid starting character such as _ More than one Invalid Login The user has attempted to enter an invalid login name or corresponding password Inval
239. sure the media is within specification refer to GP 22 Paper and Media Specifications 2 Refer to Wiring Diagram 3 Measure the voltage across the thermistor at CN7 on the PBA main The voltage measured should be 2 3V 5 3 Examine the ELA HOU fuser assembly and ensure the thermistor is in good contact with the heat roll and is clean If necessary go to the 10 1 Low Heat Error RAP or the 10 2 Open Heat Error RAP 4 Ensure the machine is being operated in the correct environmental conditions Refer to GP 11 Machine Specifications 5 Ifthe machine has been standing a low temperature environment for a long time try to bring the environment up to a warmer temperature before re trying the machine 1Q12 Partial Blank Image Not Periodic RAP Use this RAP when the printed sheets have blank areas not forming a regular pattern Procedure WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names Perform the following 1 Goto GP 1 Engine Test Mode Entry Perform the Toner State test If necessary install a new ELA toner unit set PL 9 10 Item 2 March 2004 Work Centre M20 Family 3 9 Image Quality IQ11 1Q12 1Q13 Partial Bl
240. t Slow Device Name Fax ID Date amp Time 00 00 0000 00 00 AM Clock Mode 12 24 Hours Tools Department Enter Master Code Auxiliary Access On Off Network Setup Reset NIC Configure Network Netware Use Factory Defaults Email Setup SMTP Server Setup Auth User Setup Auto Send to Self Guest User Access Default From Default Subject LDAP Server Setup Change Passcode Clear Memory System Data Fax TX History Fax RX His tory Fax Phone Book Email Address Book Email TX History Maintenance Serial Number Clean Drum New Drum Billing Counters Notify Toner Low Mailbox Setup Create Delete Work Centre M20 Family March 2004 6 7 General Procedures and Information GP 2 Table 1 M20i user mode settings Table 2 C20 user mode settings Function Item Option Function Item Option Fax Email Forward Fax Email Change Passcode Clear Memory System Data Fax TX History Fax RX His Reports Fax Phonebook Fax TX Fax RX System EE Data Scheduled Jobs Fax TX Confirm Emal TX HIStory Email TX REport Junk Fax List Billing Maintenance Serial Number Clean Drum New Drum counters Connect Page User Auth List Billing Counters Notify Toner Low Print All Reports le 2 C2 S Reports System Data Em
241. t peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones IQ15 Horizontal Bands RAP WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scolleg
242. t then the front pivot 2 Remove the MEA unit support pick up assembly Then disconnect the spring 1 Disconnect 5 1 ground harness AP 1 0026 A 1 Figure 8 MEA unit cover open removal Remove 2 screws 11 Remove the MEA unit guide duplex Figure 9 AP 1 0028 A 1 Remove the MEA unit Figure 10 MEA unit support pick up assembly removal guide duplex 13 Remove the MEA unit pickup Figure 11 AP 1 0027 A Figure 9 MEA unit guide duplex removal 12 Remove the MEA unit support pick up assembly Figure 10 Repairs and Adjustments March 2004 REP 5 1 4 16 Work Centre M20 Family 3 Remove 1 E clip then the bearing 2 Remove 1 E clip then the MEC clutch small feed Disconnect the inline con nector 4 Remove 1 1bearing then the MEA unit pickup AP 1 0029 A Figure 11 MEA unit pickup removal 14 Prepare to remove the guide M scan assembly Figure 12 3 Disconnect ELA HOU cover open switch inline connector 1 If necessary remove 4 screws 2 Remove the guide M scan assembly AP 1 0031 A Figure 13 Guide M scan assembly removal 16 Prepare to remove the MEA unit guide pick up assembly Figure 14 1 Open the MEA unit cover exit assembly 2 Disconnect CN4 CN6 2 AP 1 0032 A Disconnect 2 ground harnesses d 1 Figure 14 Preparation Disconnect CN2 AP 1 0030 A 17 R he MEA unit gui ick mbly Figure
243. t entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efectua tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones 102 Black Copies From the Scanner RAP WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scol
244. t mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones 20 2 Scan to E mail Error Messages RAP WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desco
245. t the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones March 2004 Work Centre M20 Family Introduction Translation of Warnings WARNING Take care during this procedure Sharp edges may be present that can cause injury DANGER Ex cuter cette proc dure avec pr caution La pr sence de bord
246. tecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones 9 5 Toner Empty RAP WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina
247. tem 1 PMO BRKT Feed P O PL 8 15 Item 1 PMO Roller Feed PMO Holder Pinch C P O PL 8 15 Item 1 PMO Holder Pinch SUB P O PL 8 15 Item 1 PMO Roller Feed L P O PL 8 15 Item 1 Holder Push Feed CST P O PL 8 15 Item 1 PMO Holder Pinch M P O PL 8 15 Item 1 PMO SUB Holder Feed P O PL 8 15 Item 1 Washer Plain P O PL 8 15 Item 1 PMO Roller Feed S P O PL 8 15 Item 1 IPR Shaft Feed Idler P O PL 8 15 Item 1 Sheet Feed P O PL 8 15 Item 1 Spring Feed MP Feed P O PL 8 15 Item 1 PMO Roller Pinch Feed P O PL 8 15 Item 1 E Clip P O PL 8 15 Item 1 NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more commonly recognised part names AP 8 0009 A Work Centre M20 Family March 2004 5 21 Parts List PL 8 15 PL 8 20 MP Assembly Item Part Description 1 600N01741 HOU MP Assembly REP 8 4 2 013N00515 Bushing Pickup MP 3 Ring E REF PL 31 10 6 4 Solenoid MP P O PL 8 20 Item 1 5 009N01364 Spring Cam MP 6 Spring Pickup MP P O PL 8 20 Item 1 7 009N01365 Spring Knockup 8 IPR Bracket Solenoid P O PL 8 20 Item 1 9 PMO Holder Cam P O PL 8 20 Item 1 10 PMO Gear P U MPF P O PL 8 20 Item 1 11 PMO Roller Cam MP P O PL 8 20 Item 1 12 120N00392 Actuator MP 13 022N01479 Adjuster MP 14
248. tem 12 paper path is clear 4 Enter GP 1 Engine Test Mode Entry and check the motor DC 2 BLDC Install 2 Enter GP 1 Engine Test Mode Entry Use the sensor test to check EX This is the PBA components as necessary PL 4 20 SUB exit sensor PL 4 15 Item 22 5 Enter GP 1 Engine Test Mode Entry and using the MP solenoid test Check the operation 3 Enter GP 1 Engine Test Mode Entry Check that the motor step MCK2 main fuser of the solenoid pickup PL 4 10 Item 25 Install new components as necessary motor runs Install new components as necessary PL 4 20 6 If necessary install a new PBA main PL 1 10 Item 9 4 f necessary install a new PBA main PL 1 10 Item 9 March 2004 Status Indicator RAPs Work Centre M20 Family 2 7 8 4 8 5 8 6 Paper Jam 2 Check Inside RAP The machine has detected paper at the output sensor Procedure WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury WARNING Do not touch the fuser while it is hot NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names 8 7 No Paper Add Paper RAP The machine does not detect paper in the paper tray Procedure WARNING Switch off the electricity to the machine Disconnect the power cord from the custome
249. ter A M20i Spanish Panel OPE Front Not Spared Sheet Name Plate C20 Sheet Name Plate M20 Sheet Name Plate M20i Sheet Numerical Not Spared NASG XCL ELA HOU E mail Option Unit Sheet Email EU Sheet E mail Cover E mail P O PL 2 10 Item 7 REP 2 1 E mail Keypad P O PL 2 10 Item 7 REP 2 1 Key Plate P O PL 2 10 Item 7 REP 2 1 PBA SUB E mail P O PL 2 10 Item 7 REP 2 1 Cover Dummy E mail C20 M20 Cover M OPE REF PL 2 11 Item 1 NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more commonly recognised part names AP 8 0001 A Parts List March 2004 PL 2 10 5 4 Work Centre M20 Family PL 2 11 OPE Assembly 2 of 2 Item 1 E C Inn 9 10 11 12 13 14 15 16 17 18 Part 002N02282 018N00193 029N00355 029N00345 029N00356 029N00346 029N00354 029N00347 140N62866 140N62865 029N00348 029N00349 029N00350 018N00194 029N00351 029N00352 029N00353 Description Cover M OPE Indicator REP 2 1 Rubber Scroll A REP 2 1 Key M Copy REP 2 1 Rubber Numerical REP 2 1 Key M E mail REP 2 1 Rubber Copy A REP 2 1 Key M Navigator REP 2 1 PBA SUB OPE Joint REP 2 1 PBA SUB OPE REP 2 1 Key M Job Status REP 2 1 Key M Manual REP 2 1 Key M Numerical REP 2 1 Indicator M Job Interrupt REP 2 1 Key M Job Interrupt REP 2 1 Key M Stop REP 2 1 Key M Start REP 2 1 CBF Signal O
250. the high voltage spring contacts are clean and connected 82 6mm Heat roller P O ELA HOU fuser PL 9 10 ltem 4 Check the high voltage wiring to the SMPS HVPS assembly Install a new SMPS HVPS as necessary PL 1 10 Item 4 March 2004 Image Quality Work Centre M20 Family IQ8 1Q9 Table 1 Ghosted image distance Defect distance Roller Component Parts List Ref 91 1mm Pressure roller P O ELA HOU fuser PL 9 10 Item 4 assembly If the distance between the image and the defect matches the heat roller or pressure roller perform the following that the paper tray settings match the paper or media size in the trays Ensure the media is within specification refer to GP 22 Paper and Media Spec ifications Goto GP 1 Engine Test Mode Entry Perform the Fuser Temp Check Ensure the fuser is operating within the correct temperature range refer to GP 11 Machine Specifications If the distance between the image and the defect matches the ELA OPC unit drum or the charge roller go to GP 1 Engine Test Mode Entry Perform the PTL Pre Transfer Lamp test As necessary perform the following Refer to Wiring Diagram 3 Check the wiring between the PBA SUB PTL and the PBA main Install a new PBA SUB PTL PL 8 25 Item 6 Install a new PBA main PL 1 10 Item 9 2 Clean any contamination around the ELA toner unit set area and if necessary install a new ELA toner unit
251. tion Figure 2 Unit LSU removal 3 Remove the unit LSU Figure 2 Replacement Replacement is the reverse of the removal procedure March 2004 Repairs and Adjustments Work Centre M20 Family 4 21 REP 6 1 REP 7 1 MEC Unit Tray Assembly Parts List on PL 8 11 Removal WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury WARNING Take care during this procedure Sharp edges may be present that can cause injury CAUTION Before performing this procedure refer to General Disassembly Precautions GP 10 NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names 1 Prepare to remove the MEC unit tray assembly Figure 1 1 Fully open the MEC unit tray assembly Separate the front and rear hinges by carefully pulling the MEC unit tray assembly away from the machine AP 1 0048 A Figure 1 Preparation Remove the MEC unit tray assembly and PMO tray links MP Figure 2 Remove the front and rear PMO tray links MP While holding the MEC unit tray assembly vertically disengage the front and rear PMO tray links MP AP 1 0049 A Figure 2 MEC unit tray assembly removal Replacement Replacement is the reverse of the removal procedure Repairs and Adjustmen
252. tments REP 4 4 Work Centre M20 Family 4 12 10 Remove the ELA HOU main frame assembly Figure 4 2 Remove 7 screws then the ELA HOU frame main assembly 1 Release the harnesses AP 1 0067 A Figure 4 ELA HOU frame main assembly removal Replacement Replacement is the reverse of the removal procedure REP 5 1 ELA HOU DADF Parts List on PL 5 10 PL 5 11 PL 5 12 PL 5 13 and PL 5 14 Removal WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury WARNING Take care during this procedure Sharp edges may be present that can cause injury CAUTION Before performing this procedure refer to General Disassembly Precautions GP 10 NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names 1 Remove the MEA unit rear cover REP 4 2 2 Disconnect the CBF harness DSUB Figure 1 CBF harness DSUB AP 1 0020 A Figure 1 CBF harness DSUB 3 Raise the DADF March 2004 Repairs and Adjustments Work Centre M20 Family REP 4 4 REP 5 1 WARNING Do not remove the DADF while the DADF is lowered In the lowered position the coun terbalance springs are compressed and can cause injury when released 4 Remove the ELA HOU DADF Figure 2 Place the ELA HOU D
253. trification exposure develop transfer and fixing Refer to Figure 1 BLADE SUPPLY LSU SUPPLY ROLLER DEVELOPER ROLLER HEAT ROLLER DIRECTION OF PAPER EL ELECTRIFICATION ROLLER THV PRESSURE ROLLER TRANSFER ROLLER AP 1 0118 A Figure 1 Process First in the electrification process retain constant charge at approximately 900V for the elec tric potential on the OPC surface by electrifying OPC drum at approximately 1 4KV through the electrification roller The electrified surface of OPC is exposed responding to the video data by the LSU that received print command due to rotation The unexposed non video section will retain the original electric potential of 900V but the electric potential of the image area exposed by LSU will be approximately 180V that it will form the electrostatic latent image The surface of the photo conductive drum where the electrostatic latent image is formed reaches the developer as the drum rotates Then the electrostatic latent image formed on the OPC drum is developed by the toner supplied to the developing roller by supplying roller and it is transformed into visible image It is the process to change the afterimage on the OPC drum surface formed by LSU into visible image by the toner particles General Procedures and Information GP 16 March 2004 Work Centre M20 Family While the supply roller energized with 450V by HVPS and the developer roller energized
254. ts REP 7 1 4 22 March 2004 Work Centre M20 Family REP 8 1 ELA HOU Side Cover Assembly Parts List on PL 8 10 Removal 2 Disengage the rear hinge WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury WARNING Take care during this procedure Sharp edges may be present that can cause injury CAUTION Before performing this procedure refer to General Disassembly Precautions GP 10 NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names 1 Prepare to remove the ELA HOU side cover assembly Figure 1 Remove the ELA HOU side Disengage the front cover assembly hinge AP 1 0047 A Figure 2 ELA HOU side cover removal Replacement Replacement is the reverse of the removal procedure 2 Disengage both PMO tie Remove 2 screws stoppers AP 1 0046 A Figure 1 Preparation 2 Fully open the ELA HOU side cover assembly Remove the ELA HOU side cover assembly Figure 2 March 2004 Repairs and Adjustments Work Centre M20 Family 4 23 REP 8 1 REP 8 2 MEA Unit Duplex Assembly Parts List on PL 8 10 and PL 8 11 Removal WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need
255. tuation and the main analyzes these codes and operates the system For example it the main is to display messages in OPE the main transmits data through UART line to OPE according to the desig nated format and OPE displays this on LCD LED OPE s sensing is also transmitted to the main through UART line and then the main drives necessary operation OPE PBA consists of U1 MICOM HT48R50 LCD key matrix LED indicators Refer to Refer to Figure 1 Signals from the key matrix are delivered to U1 input pin group D1 D6 U1 pin 48 TX DATA is the UART code sent to MAIN PBA Display from the controller is received at U1 pin 5 RX DATA e LCD drive signals are sent from U1 P2 x pin group P3 4 P3 6 pins Machine status LED drive signals are sent from U1 LEDO LED7 RESONATOR7 37 MHz LCD20 X 2line Connector Key Matrix AP 1 0126 A Figure 1 OPE block diagram General Procedures and Information March 2004 GP 17 6 32 Work Centre M20 Family GP 18 PBA LIU Purpose To give information about the operation of the PBA LIU Summary DC Matching Part AC Matching Part Dialer Part Ring Detection Part NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more com monly recognised part names Summary LIU wire connects main BD s MODEM and line parts and impedance matching AC DC ring detection part and line seizure dialer DC Matching Part Normal moveme
256. uede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones WARNING Take care during this procedure Sharp edges may be present that can cause injury DANGER Ex cuter cette proc dure avec pr caution La pr sence de bords tranchants peut entrainer des blessures AVVERTENZA procedere con cautela durante questa procedura Possono essere pre senti oggetti con bordi taglienti pericolosi VORSICHT Bei diesem Vorgang vorsichtig vorgehen damit keine Verletzungen durch die scharfen Kanten entstehen AVISO Tenga cuidado al efectuar este procedimiento Puede haber bordes afilados que podr an producir lesiones March 2004 Work Centre M20 Family xxiii Introduction Translation of Warnings Introduction March 2004 Translation of Warnings xxiv Work Centre M20 Family 1 Service Call Procedures SCP 1 Initial Actions cen wean ENEE eh Ry Sl ei Rite Ra ee 1 3 SCP2 FirstGCall ACOnS ore er tree 1 3 SCP 3 Norimal Call Actions teer Deed nece cap Deere te 1 4 SGP 4 Fault Analysis one eret reri hei nen rene 1 4 1 6 1 6 1 7 SCP 5 Subsystem Maintenance SCP 6 Final ACTIOnS inn edu nete SNE en SCP 7 Machine Configurations and Options sse March 2004 Service Call Procedures Work Centre M20 Family 1 1 Service Call Procedures March 20
257. ueden causar lesiones WARNING March 2004 Work Centre M20 Family Introduction Translation of Warnings Do not touch the fuser while it is hot DANGER Ne pas toucher au four pendant qu il est encore chaud AVVERTENZA Non toccare il fonditore quando caldo VORSICHT Fixierbereich erst ber hren wenn dieser abgek hlt ist AVISO No toque el fusor mientras est caliente 10 3 Over Heat Error RAP WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m
258. ungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones IQ6 Light Image RAP WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente
259. ures d Disbeseotueddbatersssaceordina todhexanutacture e instcdon and the protection they provide could be lost if a replacement component differs from the P M 9 original This holds true even though the replacement may be rated for higher voltage wattage etc 8 Use only replacement components that have the same ratings especially for flame resis tance and dielectric specifications A replacement part that does not have the same safety characteristics as the original may create shock fire or other safety hazards ESD Precautions 1 Certain semiconductor devices can be easily damaged by static electricity Such compo nents are commonly called Electrostatically Sensitive ES Devices or ESDs Examples of typical ESDs are integrated circuits some field effect transistors and semiconductor chip components The techniques outlined below should be followed to help reduce the incidence of compo nent damage caused by static electricity CAUTION Ensure no power is applied to the chassis or circuit and observe all other safety precautions 2 Immediately before handling a semiconductor component or semiconductor equipped assembly discharge any electrostatic charge on your body by touching a known earth ground Alternatively employ a commercially available wrist strap device which should be removed for your personal safety reasons prior to applying power to the unit under test 3 After removing an electrical assembly equipp
260. use injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efectua tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones WARNING Take care during this procedure Sharp edges may be present that can cause injury DANGER Ex cuter cette proc dure avec pr caution La pr sence de bords tranchants peut entrainer des blessures AVVERTENZA procedere con cautela durante questa procedura Possono essere pre senti oggetti con bordi taglienti pericolosi VORSICHT Bei diesem Vorgang vorsichtig vorgehen damit keine V
261. uso la muerte Las piezas m viles pueden causar lesiones 10 1 Low Heat Error RAP WARNING Switch off the electricity to the machine Disconnect the power cord from the customer supply while performing tasks that do not need electricity Electricity can cause death or injury Moving parts can cause injury DANGER Couper l alimentation lectrique de la machine D connecter le cordon d ali mentation de la prise pendant les activit s de d pannage ne n cessitant pas d alimenta tion lectrique L lectricit peut entrainer des blessures graves voire mortelles Les pi ces mobiles peuvent galement pr senter un danger AVVERTENZA Spegnere la macchina Scollegare il cavo elettrico dalla presa durante gli interventi che non richiedono elettricit L elettricit pu causare infortuni o morte e azi onare parti della macchina che possono causare lesioni personali VORSICHT Ger t ausschalten Bei Wartungsarbeiten die keine Stromzufuhr erfordern Netzstecker ziehen Bei Kontakt mit der Netzspannung besteht Verletzungs und Leb ensgefahr Bei beweglichen Teilen besteht Verletzungsgefahr AVISO Apague la m quina Desconecte el cable de alimentaci n de la toma de corriente mientras efect a tareas que no necesitan energ a el ctrica La electricidad puede causar lesiones e incluso la muerte Las piezas m viles pueden causar lesiones WARNING Do not touch the fuser while it is hot DANGER Ne pas toucher au four pendant qu il est e
262. ver gt gt nterface gt Protocol Registers Interface Engine SIE Controller Packet Buffer 4 1 0117 Figure 1 USB interface Features USB Specification Version 2 0 Compliant high and speed Interfaces between a local CPU bus and a USB bus Supports USB Full Speed 12 Mbps and High Speed 480 Mbps Supports optional Split Bus DMA with dedicated DMA and CPU access Provides 3 Configurable Physical Endpoints in addition to Endpoint 0 Provides 30 Configurable Virtual Endpoints Each endpoint can be Isochronous Bulk or Interrupt as well as IN or OUT Supports high bandwidth isochronous mode Supports Max Packet Size up to 1K bytes double buffered Internal 3 Kbyte memory provides transmit and receive buffers Local CPU bus easily interfaces to generic CPUs 8 bit or 16 bit CPU or DMA bus transfers Multiple register address modes supports both direct and indirect register addressing Automatic retry of failed packets Diagnostic register allows forced USB errors Software controlled disconnect allows re enumeration Atomic operation to set and clear status bits simplifying software Low power CMOS in 64 Pin Plastic TQFP Package 30 MHz oscillator with internal phase lock loop multiplier Provides an output clock to the local bus 8 programmable frequencies from OFF to 60 MHz 2 5V 3 3V operating voltages with 5V tolerant I O GP 16 Engine Controller Purpose To give
263. ver alter or add to the mechanical or electrical design of this Ss Minimize body motion wher handling unpacked ESDS Normal motions equipment such as auxiliary connectors etc Such alterations and modifications will void such as the brushing together ot cloning fabric angling eteot irom acarpeted EECH the manufacturers warranty generate static electricity sufficient to damage an ESD 5 Components parts and wiring that appear to have overheated or are otherwise damaged Lithium Battery Precautions should be replaced with parts which meet the original specifications Always determine 1 Exercise caution when replacing a lithium battery There could be a danger of explosion the cause of damage or overheating and correct any potential hazards and subsequent operator injury and or equipment damage if incorrectly installed 6 Observe the original harness routing especially near sharp edges AC and high voltage 2 sure to replace the battery with the same or equivalent type recommended by the power supplies Always inspect for pinched out of place or frayed wiring Do not change manufacturer the spacing between components and the printed circuit board 3 Lithium batteries contain toxic substances and should not be opened crushed or burned 7 Product safety notice some electrical and mechanical parts have special safety related for disposal characteristics which might not be obvious from visual inspection These safety feat
264. vice TYPE NO AM29LU160DB CAPACITY 4 MBYTE 1M 16BITS 2 Programming Refer to Table 2 Table 2 Programming BEFORE ASS Y EPROM PROGRAMMER or PROGRAMMING at the factory AFTER ASS Y DOWNLOAD from PC Operating Principle When the RCSO ROM CHIP SELECT signal is activated from the CPU after the POWER is ON it activates RD SIGNAL and reads the DATA HIGH LOW stored in the FLASH MEMORY to control the overall system The FLASH MEMORY may also write When turning the power on press and hold the key power switch for 2 3 seconds then the LED will scroll and the PROGRAM DOWNLOAD MODE will be activated In this mode you can download the pro gram through the parallel port AC Characteristics Refer to Figure 2 and Figure 3 General Procedures and Information GP 13 6 22 March 2004 Work Centre M20 Family Read Status Data last two cycles Progr am Command Sequence last two cycles Addresses CE OE WE Data AP 8 0087 A Figure 2 Program operation timings NOTE 1 PA program address PD program data Dout is the true data at the program address NOTE 2 Figure 2 shows device in word mode NOTE Refer to the Erase Program Operations table for Tas and Tah specifications USB Universal Serial Bus NS s USBN9602 is used as the interface IC and 48MHz clock is used When the data is received through the USB port EIRQ1 SIGNAL is activated
265. with 300V rotate in the same direction it keeps the toner particles between two rollers sup plied to OPC drum in negative state by the friction between two rollers The toner supplied to the developer roller is biased to bias electric potential by the developer roller and transferred to the developing area After toner is attached to the developer roller it will move to the exposed high electric potential surface 180V rather than to the unexposed low electric potential surface 900V of the developer roller and OPC drum Eventually the toner will not settle in the low electric potential surface to form the visible image Later the OPC drum continues to rotate and reaches to transfer location in order to accomplish the transfer process This process transfers the toner on the transfer roller to the printing paper by the transfer roller The toner attached to the OPC drum will be energized to hundreds to thousands of the transfer voltage by HVPS The electrostatic force of the transfer roller generated has higher adhesiveness than the toner OPC drum and thus it moves to the surface of the paper passing through the transfer roller The toner transferred to the paper with weak electrostatic force is fixed to the paper by the pressure and heat of the fixer composed of pressure roller and heat roller The toner attached to the paper is melted by applying the heat approximately 180C from the heat roller and the pressure appro
266. ximately 4kg from the pressure roller After the fixing pro cess the paper is sent out of the set to finish the printing process Organization of the Device The HVPS is comprised of electrification output unit bias output unit and transfer output unit Refer to Figure 2 Figure 3 Figure 4 and Figure 5 1 Input Unit 2 Electrification Output Enable Unit MHV Main High Voltage 3 Bias Output Enable Unit DEV Development Voltage Supply Supply Voltage BLADE Blade Voltage Transfer Output Enable Unit THV Transfer High Voltage Transfer Output Enable Unit THV Transfer High Voltage Switching Unit Feedback Unit Regulation Unit Output Unit oor D OT dE OUTPUT CIRCUIT REGULATION CIRCUIT SWITCHING CONTROL UNIT MHV PWM AP 1 0119 A Figure 2 Electrification unit block diagram SWITCHING Cree CONTROL UNIT IRCU FEEDBACK THVPWM PWM CONTROL UNIT THV SWITCHING REGULATION CONTROL UNIT CIRCUIT THVREAD THV ENVIRONMENT RECOGNITION CIRCUIT FEED BACK AP 1 0120 A Figure 3 Transfer Output Unit Block Diagram SWITCHING PWMCONTROL UNIT CONTROL UNIT FEEDBACK MHV PWM AP 1 0121 A Figure 4 MHV output unit block diagram March 2004 Work Centre M20 Family 6 29 General Procedures and Information GP 16 BIAS PWM PWMCONTROL UNIT BLADE SWITCHING ONTROL UNIT FEEDBACK REGUL
267. y Refer to Table 15 Table 15 Scanner assembly Part name Commonly known as PL Ref ELA HOU scanner assembly Scanner PL 14 10 Item 1 ELA HOU SCAN upper assembly Scanner top cover assembly PL 14 10 Item 2 A S material dummy upper assembly CVT glass assembly PL 14 10 Item 3 MCT glass DADF CVT glass PL 14 10 Item 4 MCT glass scanner legal Document glass PL 14 10 Item 12 PBA SUB D SUB Scanner PWB PL 14 11 Item 5 PMO lever sensor DADF angle sensor actuator PL 14 11 Item 12 ELA HOU CCD module CCD module PL 14 11 Item 16 CBF signal CCD FFC CCD harness PL 14 11 Item 17 CBF Harness OPE Scanner Ul harness PL 14 11 Item 18 Holder M CCD CCD lock PL 14 11 Item 20 ELA HOU scan motor Scan motor assembly PL 14 11 Item 23 Motor step scan Scan motor PL 14 11 Item 25 Work Centre M20 Family March 2004 6 39 General Procedures and Information GP 20 GP 21 DADF Document Feeding Specifications Purpose To list the specifications of the documents that can be fed through the DADF Specifications Refer to Table 1 Table 1 Specifications Item Specification Length 145mm 356mm 5 75 inches 14inches Width 145mm 216mm 5 75 inches 8 5 inches Weight 50 gsm 105 gsm 12 510 2810 Thickness 0 075mm 0 13mm Curl Less than 5mm GP 22 Paper and Media
268. y recognised part names AP 8 0007 A Parts List March 2004 PL 7 10 5 16 Work Centre M20 Family PL 7 15 Tray 2 Cassette Assembly 1 of 2 Item 1 2 JO O a 13 14 15 16 17 18 19 20 21 22 23 Part 022 01600 130 01337 120 00393 Description ELA Unit SCF MC2 REF PL 31 10 Item 3 PMO Cover Top SCF Not Spared ELA HOU Upper SCF2 Not Spared PMO Guide Paper Upper SCF Not Spared Shaft Pickup CST Not Spared Shaft Pickup SUB Not Spared PMO Bearing Shaft Not Spared Gear Pickup Not Spared Rubber Roller Pickup Rubber Roller Pickup S PMO Bushing P U MP Not Spared PMO M Actuator No Paper Housing M Pickup Large Not Spared Housing M Pickup Small Not Spared Gear Feed SCF Not Spared Ring 104 REF PL 31 10 6 RING E 105 REF PL 31 10 6 Feed Roller SCF MC2 Not Spared ICT Pin ADF Not Spared Ground Plate SCF Not Spared CBF Harness GND Star Wheel Not Spared PBA SUB Exit SEN Not Spared PMO Base Frame SCF REF PL 7 16 Item 2 NOTE If necessary refer to GP 20 for the acronym list and cross reference lists of more commonly recognised part names AP 8 0024 A March 2004 Parts List Work Centre M20 Family 5 17 PL 7 15 PL 7 16 Tray 2 Cassette Assembly 2 of 2 Item 1 OO JO Om A Cc

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