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Service Manual

1. 3 34 3 3 28 end 8 Lever Paper near end 3 35 3 3 29 Guide L Dy 3 3 30 Guide Assy GCasselle eerte roto FE DE xcu qu ReFU Re sade 3 38 4 sss tss sss 4 1 4 1 Maintenance Modes And 4 1 4 1 1 User maintenance mode 4 3 4 1 2 gt System maintenance 4 7 4 1 3 Engine maintenance nennen nnns 4 10 LA E MR ic coeli el Rm T TM 4 14 42 Adjustment When Replacing 4 15 4 2 1 Resetting the fuser counter 2 4 16 422 852155 TET 4 17 5 PERIODIC MAINTENANCE si tecswoccencenssesssusssudsenecesavesgecetcacsexseses 5 1 51 Replacing Part T UE 5 1 Sr mE 5 1 5 2 1 Cleaning of LED lens 5 1 52 2 Cleaning ithe es FIM PT Do m 5 2 6 TROUBLESHOOTING PROCEDURES 6 1 6 1 Troubleshooting TipS usce mistero rtr eerte taurus Es runners iate omg edes nad 6 1 6 2 Points to Check before Correcting Image 6 1 6 3 Tips for Correcting Image Problems 6 1 6 4 Preparation
2. 1 7 1 5 1 Certification label a5 1 7 5 0 Wanng labeh TREE 1 7 OPERATION DESCRIPT TION 2 1 2 1 Main Control Board BOARD AAA 2 3 22 SU nitricum iura 2 7 2 3 Electro photographic 5 2 9 2 3 1 X Electro photographic process mechanism 2 9 2 3 2 Electro photographic process Rena Na 2 11 2 3 3 Process operation descriptions 2 15 2 3 4 Revision of LED Head lllumination 2 2 25 2 4 Paper Jam Detection RE m 2 30 COVO IDO ee 2 31 2 6 Toner Low Detection 2 32 27 Stacker full Detection nnne nnn nnn nnn 2 34 25 Fade oze MET 2 34 2 9 PostScript ROM module BOARD MSM 2 34 PARTS 3 1 3 1 Precautions for Parts Replacement tu abri Cb Apnea 3 1 UPC deg 33 le depellere 3 6 33 1 Face up Stacker 66 oai uui 3 7 3 3 2 Contact ASSy RRCNR E
3. Blank paper is output Figure 6 4 Black belts stripes in the vertical direction Figure 6 4 D Cyclical defect Figure 6 4 Print voids Poor fusing images are blurred or peeled off when touched by hands White belts streaks in the vertical direction Figure 6 4 B Snowy print of high density pattern Figure 6 4 B Blockly faded print Figrue 6 4 A Light or blurred Dark background C Blank paper D Black stripes in the images as a whole density vertical direction Cyclical defect E White belts or Snowy print of 1 Blockly faded print streaks in the highdensity pattern vertical direction Fig 6 4 Abnormal images CO Image are light or blurred a whole Is toner low Is the TONER LOW message displayed e Yes Supply toner No Is paper of the specified grade used No Use paper of the specified grade Yes 15 the lens surface of the LED head dirty e Yes Clean the lens No Is the LED head installed properly Check connector HEAD1 14P HEAD2 12P of the Main board and PC connector on the LED head for proper connec tion No Install the LED head properly Power Supply Unit High Voltage properly See Figure 6 6 e No Make the contact plate of the transfer roller contact with the Power Supply Unit High Voltage and Shaft of the transfer roller properly Yes the contact of the developing roller and the contact of the toner sup
4. M Press the Xl or Press the Xl or 18 M AUTO TYPES TYPE3WB Writing into the EEPROM is performed when the Enter key is pressed Writing into the EEPROM is performed when the Enter key is pressed Writing into the EEPROM is performed when the Enter key is pressed 0 5 mm intervals 4 12 When HEADTYPE AUTO is selected AUTO 16 AUTO 15 AUTO AUTO 15 Press the lt or Displayed with 1 mm intervals Writing into the EEPROM is performed when the Enter key is pressed Press the Menu key Press the 4 or Writing into the EEPROM is performed FRNT POS Same as 1 9 lt gt 1 when the Enter key is pressed Press the Menu press the PKey Game as 1 Writing into the EEPROM is performed o when the Enter key is pressed Press the Menu key Press the X or Dkey No 1 Writing into the EEPROM is performed No 2 when the Enter key is pressed No 3 Press the Menu Key Press the lt lor Same as 1 Writing into the EEPROM is performed gt when the Enter key is pressed Press the Press the X or No 1 Writing into the EEPROM is performed 2 when the Enter key is pressed Press the we Menu key Press the DUP POS pss Same as 1 Press the Menu key FUSR CNT nnnnnn Pres
5. o olo ojo 4 o o 9 O ojo ojo olo o 2 H o o od q TQ 0412 oq D LLI 4 N P of A wo CO STKFULL 1 9 9 3 BEYI LO st N N SIdNW e 1 O O st st 3 O e 21 000000000000000000 99 52 LZ 0000000000000000 gt lt gt lt gt gt 21 T LZ o E S 21 000000000000000000 LZ ooo00000000000000009 0000000000000000 o o LL 6101 a I TA1 3 1 setting 2pin 3pin Note short plug TA1 setting Esser Er ded deb pop eS HOLOW 8 PARTSLIST PARTS LIST 8 Figure 8 1 Printer Unit Table 8 1 Printer Unit 1000 40441001 Cover Side L Ass 40304101 Cover Side H 40304401
6. LCD display 5 5 MNT Press the Menu key PAGE CNT nnnnnn Press the Menu key PAGE PRT DISABLE Press the Menu key CONT PRT Press the LOOP TEST Press the EEPROM RESET Menu key Menu key Pressthe 4 or Writing into the is performed ENABLE g into the Is performe when the Enter key is pressed Press the Press the End of processing Enter key CONTINUOUS ONLINE key is performed by the m PRINT ___ gt CONTINUOUS Det PRINTING PRINT CANCELED Press the Enter nnnnnn _ Press the After the end Enter key of processing EEPROM ON LINE Press the key HSP ERR RECOVER gt SIOP HSP ERR CNT nnn Press the Enter key HSP ERR HSP ERR n CNT RST RESETNG ON LINE Press the SIDM key ENABLE DISABLE Press the Menu key Press the ON LINE key INITIALIZING ON LINE Engine maintenance mode The engine maintenance mode is activated when the power is turned ON while pressing to the Form Feed key and Enter key This mode adopts the menu for function selection The method for exit from this mode depends on the setting The engine maintenance mode is provided with the following functions Head type setting select LED Head type e Sets the select LED head type Head drive time setting e Sets the drive time of the LED head Head drive time setting at auto head type e This fu
7. foe zigol lee eli gt gt 7559 Yolon AVHLONE Sockets for DRAM SIMM Socket for FLASH SIMM or PS SIMM MODULE 2 Power supply board AC120V 230V I LL e T 2 SW1 4 PostScript ROM module BOARD MSM or BOARD FSL C BOARD FSL 2 BOARD MSM 5 Flash ROM module BOARD FSL Motor Mai Between pins 1 and 2 3 10 mE Between pins 3 and 4 310 to CN2 connector Thermostat on the Power Supply Heater Or 230V Between pins 1 and 2 220kQ at 25 C Fusing Unit Between pins 3 and 4 1 50 120V to connector TT 5 80 240V on the Power Supply Unit High Voltage 99U2 99UE SISOH 5270 ip pue suid 5 9 Z pue suid eouejsisau N IN IVNVJ oDueJQ weeg 1010 Hu In case of EP ROM or OTP ROM Program Font ROM Location 1 7 4 Sc 1 HEAD2 HEAD1 0000000 TE 1 12 2 1 3 14 1 o o o o o o o o o o o o o o o o o o o
8. READY ATTENTION ATTENTION IONER LOW TONER SENSOR CHANGE DRUM FUSER LIFE COPY nnn mmm Informs that the amount of toner low This is indicated in combination with other messages of the first line Normal operation is possible But when LOW OFF has been selected in the menu ATTENTION LED will flash Informs that toner sensor detects an error But when the total drum count were 30 pages this error would be indicated when the total drum count were lt 30 pages an impossible to reset alarm ERROR 77 which will be described later would be indicated This is indicated in combination with other messages of the first line Normal operation is passible Informs of the drum life This is indicated in combination with other messages of the first line Normal operation is enabled if desired Informs that the life of a replaceable part such as fuser fusing device and roller This is indicated in combination with other messages of the first line Normal operation is possible Indicates that the number of sheets in current printing when the number of copies is two or more Deletes not yet printed data within the buffer and initiates the status of the printer to user default Temporary DLL macro user pattern will be deleted Replace the toner cartridge Check the operation of the toner sensor lever Replace the Power Supply Unit High Voltage Replace the main board N
9. Check the paper in the Second third ERROR PAPER SIZE per feeding from the Second Paper Feeder Also check to see if there CHECK TRAY third Paper Feeder was a feeding of multiple sheets Carry out the recovery printing by opening the cover removing paper and closing the Paper size error cover and then turning the error display off Tray paper out Notifies of no paper or paper Load the paper or paper cassette in the PAPER OUT cassette state of the Second Second third Paper Feeder mmmmmmmm TRAY third Paper Feeder mmmmmmmm Paper size in the tray being selected Interface Timeout Notifies of occurrence of in Verify connection of Board BBB and terface timeout between the square shaped connector Replace the printer and the Second third square shaped connector if necessary Paper Feeder Replace Board BBB 2or3 4 3 2 Troubleshooting Flow JAM error Paper Input Jam Does paper jam at the inlet when the power is turned on YES 15 the paper located above the inlet sensor lever e YES Remove the paper NO Isthe inlet sensor lever operating normally Replace the inlet sensor lever e YES Clean the inlet sensor 1 on the power supply unit High Voltage or replace the power supply unit High Voltage See Fig 2 3 Sensor Layout Diagram YES 15 paper being fed to above the inlet sensor lever YES 15 the inlet sensor lever operating normally NO Replace the inlet sensor lev
10. Remove SPRING Sheet and then remove LINK Sheet and pull block Pay attention the direction of hook of SPRING Sheet Remove spring and then remove cassette stopper Remove screw 8 from LINK Sheet and then remove link support and Roller link Remove Earth Plate L and Plate Earth link 3 3 30 Guide Assy Cassette 1 Turn the AC power switch off Unplug the AC power cord from the outlet 2 Remove Frame Main See 3 3 12 7 3 Remove PLATE Base and FRAME Assy Hopping See 3 3 28 5 4 Unscrew two screw 1 and then remove Guid Assy Cassette b Remove SPRING Sheet and then remove LINK Sheet and pull block Pay attention the direction of hook of SPRING Sheet 6 Remove spring and then remove cassette stopper 7 Remove screw 8 from LINK Sheet and then remove link support and Roller link 8 Unscrew two screws 17 and remove the Square shaped connector 176496 1 and Nylon Connector Cord 9 and TR 23 11 R CORE 9 Unscrew two screws 15 and remove the two Plate Earth Bottom 10 Unscrew two screws 47 and remove the Square shaped connector 5 176496 1 and Connection Cord Wire 9 and TR 23 11 R CORE 69 11 Unscrew a screw 0 and remove the Detector spring 12 Unscrew a screw 03 and remove the Board PXC 6 4 ADJUSTMENT 4 1 ADJUSTMENT This chapter explains the adjustment necessary when replacing a part Adjustment is
11. wem 20 4061601 Bearna 2 2 5 1 rs s oo mem 9 il o sese a7 o e e mme e o sexe e uwwec saw o seme O O C1 Table 8 2 Frame Main Unit 1000 40299501 GEAR Idle EM 40299601 GEAR Idle HE 40302301 GEAR Idle J E 40313501 BEARING Plastic Feed 4PP4076 5308P001 40371501 GEAR Assy Clutch 250 40432301 PLATE FG 1st 40313201 ROLLER Ass Feed 40371601 GEAR Assy Clutch 240 4PP4076 5044P001 EP Rock Lever R 4PP4076 5045P001 EP Lock Spring 40301001 ROLLER ASS BK 40316101 GEAR Idle EA 40316201 GEAR Idle EB 40302501 LEVER Back up release 40300501 HEAT Assy A4 120V 40300502 HEAT Assy A4 230V C Bearing 2 2 2 20 20 40306401 40306402 40307401 4PP4076 5191G001 40587001 4 4128 1164 001 LAMP Halogen 750W 120V LAMP Halogen 750W 230V GUIDE Assy Eject Damper Arm Caulking Stacker Assy For Maintenance HEAD Spring SENSOR Stack Full Film Guide Film FG 1 2 403
12. 29 3 3 23 LEVER Assy Out Sensor 1 Turn the AC power switch off Unplug the AC power cord from the outlet 2 Remove the frame main See 3 3 12 7 3 Pressthe clamp part of LEVER Assy Out Sensor Remove the LEVER Assy Out Sensor by pushing it upward from the lower side 3 3 24 Toner sensor lever 1 Turn the AC power switch off Unplug the AC power cord from the outlet 2 Remove the frame main See 3 3 12 7 3 Squeeze the clamp part of toner sensor lever and remove the toner sensor lever by pushing it upward from the lower side 3 3 25 Paper sensor lever 1 Turn the AC power switch off Unplug the AC power cord from the outlet 2 Remove the frame main See 3 3 12 7 3 Squeeze the clamp part of the paper sensor lever and remove the paper sensor lever by pushing it upward from the lower side 3 3 26 Inlet sensor lever 1 Turn the AC power switch off Unplug the AC power cord from the outlet 2 Remove the frame main See 3 3 12 7 3 Squeeze the clamp part of two inlet sensor levers Remove the inlet sensor levers by pushing them downward 3 3 27 Power supply unit Turn the AC power switch off Unplug the AC power cord from the outlet Remove the frame main See 3 3 12 7 Unscrew 2 screws 1 and remove the Unscrew 10 screws 3 and remove the connector 6 remove the Power supply unit AC DC 120 230V Power supply unit High vo
13. 506904d50906990 8 Oc6 cSH 1399 9g o o o o o o o o o 5 o gt ojo ojo ojo o o o o lt N TIP o G ae oo ojo o I I o o ojo o o ojo o 55 o 9 p LV o000000000000000000000000000000 CoV STKFULL 1 655 3 40o00o0oooooooooooooooo 000000000000000000 7 999000000000000000 0000000000000000 LL cA 000000000000000000 000000000000000000 LZ o0o0000000000000000 o o L FSIMM1 SIMM1 SIMM2 HDD NIVIN ONIddOH
14. Thank You for purchasing this Factory Service Manual on EBAY from PCTECHI NFO Click Here for more Factory Service Manuals for other Computer and Printer Copier Manufacturers from PCTECHI NFO OKI OKIPAGE20 OKIPAGE20n LED Page Printer Maintenance Manual ODA OEL INT PostScript Adobe and the PostScript logo are trademarks of Adobe Systems Incorporated registered in the U S A Times Helvetica and Palatino are trademarks of Linotype AG and or its subsidiaries ITC Avant Garde Gothic ITC Zapf Chancery ITC Zapf Dingbats and ITC Bookman are registered trademarks of International Typeface Corporation HP and LaserJet are registered trademarks of Hewlett Packard Company Diablo 630 is a registered trademark of Xerox corporation AppleTalk is a registered trademark of Apple Computer Inc LocalTalk is a trademark of Apple Computer Inc PREFACE This maintenance manual describes the field maintenance methods for OKIPAGE20 OKIPAGE20n This manual is written for use by maintenance personnel Note however that the user should refer to the USER S MANUAL for methods of handling and operating the equipment 1 CONTENTS CONFIGURATION EREA 1 1 Ore a 18 0162 ile 9 Mm 1 1 Prine OPIN AOU saeco 1 2 Md ODM OC 2111 a 1 3 DE 1 5 Lo
15. 9 Message cannot be received through the serial interface 5 message ERROR HOST displayed o_o 4 gt Yes NO Set the RS 232C ENABLE in HOST I F items of Menu 1 e No Setthe RS 232C to ENABLE Do the following items selected for RS232C SERIAL in menu level 2 coincide with those selected at the host side FLOW CONTROL PARITY e BAUD RATE MIN BUSY DATA BITS No Ifthe selection differs between the printer and the host change the setting of Yes NO Yes Yes NO the above items in menu level 2 so as to coincide with the setting at the host side Is the connector of the serial interface cable connected to the printer properly Connect the connector printer properly Is there any defect in the serial interface cable broken or bent pin broken wire Replace the serial interface cable Perform the loop back test using the loop test function in the system mainte nance mode To make this test it is necessary to form the following loop back connector Connect the loop back connector to port instead of connecting the host 13 LOOP TEST displayed ERROR NO Replace the serial interface cable Is the printer recovered NO Yes e YES END Replace the Main board Replace the Main board or ask the user to check the hardware and software at the host side 2 TD 3RD 4RTS 5 5 8 NOT USED 11 SSD loop back connector E serial in
16. C 12 n 19 3 3 2 Connector 5 9714 14 C 14 Coss NNI T C 15 224 SOEBNCOIDUASSV C 16 17 THOUBLESHOO C 18 41 Precautions Prior to the Troubleshooting C 18 4 2 Preparations for the Troubleshooting C 18 4 3 Troubleshooting Method C 19 4 3 1 LCD Status Message LISL C 19 4 3 2 Troubleshooting C 20 CONNECTION DIAGRAM 4 0 21 1 24 5 1 Interconnection Diagram i C 24 02 ge 9 lc C 25 PARTS ec C 26 1 OUTLINE 1 1 Functions DUPLEX UNIT is a unit which is installed on the printer unit for controlling both sided printing from the printer unit intended for automatically reversing papers of which one side have been already printed and re feeding them to the unit for printing other side The main functions are the followings Paper that can be used Paper Type e Cut Sheet Size A4 Le
17. Hopping roller gear 7 Planetary gear D F Sub roller Za Planetary gear M N Sub roller gear 2 Pc ue Planetar 3rd paper feeder gear G Idle gear EX Hopping motor Ww 2 2 Hopper Mechanism The hopper is a motion where papers are automatically sent into the printer one by one When papers are set to the cassette the feeding motion is activated by the hopping motor to send only a top paper which is caught on the brake shoe Printer Roller feeder Hopping Roller Sub Roller lt Second Paper Feeder gt lt Third Paper Feeder gt 3 1 PARTS REPLACEMENT In this section the removing and installing procedure of assembly and unit in field are described Although this section describes the removing procedure the installing procedure is basically to conduct the removing one in reverse Precautions Concerning Parts Replacement 1 Parts replacements must be carried out by first turning the printer power switch off O and removing the High Capacity Second Third Paper Feeder from the printer Do not disassemble the Second Third Paper Feeder if it is operating normally Establish the extent of disassembly suitable for the purpose of the procedure and do not disassemble any more than necessary Only specified service tools may be used Disassembly must be carried out according to the prescribed procedures Parts may be damaged if such procedures are not followed
18. Yes 5 INITIALIZING message shown the LCD display e Replace the Main board 7 yes ONLINE XXX message shown in the LCD display XXXX XXXX Take the proper action following the message shown in the LCD display For details see the chapter 6 5 1 LCD STATUS message trouble list YES END STKFULL 1 699 3 000000000000 ZO joooooooooooo00 fl 968654 OF 2 oooooo 1 9999 0 LZ 000000000000000000 ig COR PRS oo 000000000000000000 LZ 0 0 0 0 co coco 0 00 9 0000000000000000 CA 99 dp oro LL 000000000000000000 0000000000000000 FSIMM1 SIMM1 SIMM2 Enea E ded ded qup qu HOLOW 919 N3 MOT AVHLONE 000000000000 12 DUP 29 CO LO POWER CONNECTOR LZ N LL Fig 6 1 Connector and Pin Location Main control board BOARD AAA Measurement by a Multimeter Fig 6 2 6 17 TNSNS WRSNS Fig 6 3 Connector an
19. 3 8 Ie EM UU UU m 3 9 334 QOP Panel ASSy 3 10 339 3 11 3 3 6 Stacker Assy Damper Arm Cover 3 12 3 3 7 Sensor Stacker Full uenerat ttt hoe er rane emi tra Pam edit radi 3 13 mE 3 14 399 eT TE Uem 3 15 2210 i e Mire tomm 3 16 3 3 11 3 17 3 3 12 Motor Main 3 18 SSH NITE 3 20 3 3 14 Heat Assy EEUU 3 21 Scu MEL Ecchi NETT 3 22 3 316 Rollor ASSY BK 3 23 3 3 17 Roller Uu 3 24 LED T Rm 3 25 3 3 19 Paper cassette ROLLER Ass Feed ROLLER Assy Hoppibg 3 26 3 3 20 5 5 3 27 3 3 21 Transfer Roller TH Gear TR Bearing rer tr tt oa ceret 3 28 3 322 ilo e ERR EIER RECTE 3 29 mors 3 30 3 3 24 Toner sensor 3 31 3 3 25 Paper KS an drea DU REY FED iss 3 32 3 926 3 33 3 3 27 Power supply
20. JeJSuEl DuisnJ yale Jaded 1910 99 oJnsseJd Duisn 19 eoH JeJSUeJ 7 1910 V Josuas SA dn eoe 1009195 jaded Duiueo 2 Figure 2 5 ddns JOMOd 101 131 190 ale jaded Jebjeu ddns JOMOd umop 9024 pele jaded 20 pele jaded 2 12 6 9 2 DMON N DRUM MOTOR HMON N HOPPING MOTOR PWM1 P CLUCH for hopping 2 CLUCH for REGISTRATION PSIN1 N INLETSENSOR 1 WRSENSE N PAPER SENSOR PSOUT N OUTLET SENSOR STB N LED HEAD PAPER OFF OFF ON ON OFF OFF oF po ON do f OFF PAPER TRAY PRINTER STACKER SIMPLEX PRINTING TIMING CHART 2 2 n DMON N DRUM MOTOR HMON N HOPPING MOTOR PWM 1 P CLUCH for hopping 2 CLUCH for REGISTRATION PSIN1 N INLETSENSOR 1 WRSENSE N PAPER SENSOR PSOUT N OUTLET SENSOR STB N LED HEAD UNIT MAIN MOTOR in DUPLEX CLON P CLUCH in DUPLEX UNIT SLON P SOLENOID in DUPLEX UNIT DUPINSNS N INLET SENSOR in DUPLEX DUPRSNS N REAR SENSOR inDUPLEX UNIT DUPFSNS N SENSOR DUPLEX UNIT PAPER OFF op ON ON OFF d PO OFF ON
21. No Replace the Duplex In sensor lever LEVER Sensor D IN and SPRING Sensor D IN No Is the connection cord between the Motor and the Board LEX Yes Replace the GEAR Assy OK Yes end NO Replace the Motor OK Yes end Replace the Board LEX NO Connect the connection cord properly Does the square shaped connector between the Duplex unit and printer unit has any trouble Is there pin bend or other troubles Yes Is the connection cord between the Duplex unit and the printer unit connected properly See Chapter 7 1 and Appendix C Chapter 5 1 Yes Does the connection cord have a break Yes Replace the connection cord Core Assy DUPLEX Is the connection between the solenoid and con nected properly C 20 Yes Heplace the SOLENOID Assy OK Yes end Replace the Connect the connection cord properly NO Connect the connection cord properly Replace the square shaped connector Connector IMSA 9714N 144 Duplex FEED JAM1 Is there a paper on the Duplex In sensor lever YES Is the Duplex In sensor operating normally Yes Is the connection cord between the Duplex In sensor and the Board LEX connected properly Yes Does the connection cord have a break Yes the connection cord Connection Code Wire the Duplex In sensor FX50 Photo Sensor OK Yes end Replace the Board LEX Connect t
22. OFF m m a ON ON 5 ON OFF ON OFF OFF ON PAPER PRINTER PRINTER DUPLEX UNIT DUPLEX UNIT PRINTER PRINTER DUPLEX UNIT STACKER DUPLEX PRINTING TIMING CHART 2 4 3 Process operation descriptions 1 Hopping Hoppings from the first tray and the front feeder are effected by a single hopping motor in the mechanism shown below Hopping Motor 1st Tray Turning the Hopping motor in direction a CW drives the 1st Hopping Roller Turning the Hopping motor in direction b CCW drives the Front Hopping Roller Gear C and Hopping roller bult in one way bearing so that turning each of these gears in reverse direction will not be transmitted to the corresponding roller Gear C One way Clutch build in Hopping Motor CL IN lai WSS Six Inlet mie Front Hopping Roller One way clutch build in DS Lac TD Roller Regist Planet Gear aN WS BS S 1st Hopping One way clutch build in 2 Roller Paper Hopping from the 1st Tray Align Roller CD Regist Roller 264 S egist Roller Hopping Rotating the Hopping Motor in direction a CW drives the 1st Hopping Roller and the Sub Roller then pick up a
23. Troubleshooting ES rent ines 6 2 69 SIRO OTIS NETTE E o S TERNOS 6 2 6 5 1 LCD status message trouble 6 2 6 5 2 LCD message troubleshooting sees 6 14 6 5 3 Image troubleshooting s eor Ea apart RYE th PR EE Bea eR SOR ues 6 34 7 WIRING DIAGRAM 22 032 cente 7 1 75 Interconnect Signal DIGOFalTE 7 1 2 POBE 7 2 73 E m memet 7 5 OM ROM OC AOI 7 7 PARTS CIST c 8 1 APPENDIX A CENTRONICS PARALLEL INTERFACE A 1 APPENDIX B RS 232C SERIAL INTERFACE B 1 APPENDIX DUPLEX UNIT C 1 APPENDIX D Second Third Paper Feeder D 1 APPENDIX E Multi Feeder 1 1 CONFIGURATION 1 CONFIGURATION 1 1 System Configuration OKIPAGE20 OKIPAGE20n consists of control and engine blocks as the standard configura tion See Figure 1 1 In addition the following options are also available Printer Operator PC i o Power Printer li Main control
24. Unlock this part before removing Q DC Fan Motor 3 3 3 See 3 3 2 1 1 Remove the cover assy side L 2 Remove the DC fan motor by pulling out the connector of DC fan motor 0 v NM y NG V SN E T1752 2 RN ES 7 gt 7 0 2 3 34 Panel Assy 1 Disconnect the Interface cable 1 2 Open the stacker assy unscrew 2 screws 3 and remove the cover side I F 3 Remove 2 screws 5 and flexible cable to remove the operator panel assy 3 3 5 Board AAA 1 Remove the operator panel assy and cover side I F See 3 3 4 2 Unscrew 2 screws 1 and remove the cover side R 3 Unscrew 2 screws 3 and remove plate shield 4 Unscrew 3 screws 5 and 2 screws 6 unplug all the connectors 7 and remove Board AAA 3 3 6 Stacker Assy Damper Arm Cover Rear Remove the face up stacker assy See 3 3 1 Remove the cover side L See 3 3 2 1 Remove the OP panel assy See 3 3 4 Remove the Board AAA See 3 3 5 Loosen 2 screws unlock the both sides latches and remove the cover rear Unscrew 2 screws 1 and cover frame Unscrew 3 screws 3 and remove the plate assy side R 4 Remove the lever back up release and unlock the engagement of the projection on the right side of gear at the right side of stacker cover Remove a screw 6 and washer and then remove the stacker assy
25. 2 3 Removing Installing Duplex Unit Removing Duplex Unit 1 Power Off and remove the Paper Cassette from 1st tray 2 Remove the Lever Release from the boss of the Hopping Frame LEVER Release Dup Release Release LEVER Release Dup B View 3 Rotate the LEVER Lock Dup in the direction of the arrow to release the Lock Connector Duplex Unit Installing Duplex Unit 1 Hold the LEVER Lock Dup in horizontal lock position Then insert the Duplex Unit along the groove up to accord both rear faces between printer and Duplex Unit Printer LEVER Release Dup Note Printer and Duplex Unit will connect automatically with built in connector 2 Lock the Duplex Unit to the printer by turning the LEVER Lock Dup to the next locking position as below Connector LEVER Lock 3 From front side of printer snap fit LEVER Release into the boss Hopping Frame Boss onap Fit onap Fit onap Fit LEVER Release Dup 4 After installing Duplex Unit put back the Paper Cassette into 1st Tray Note Asthe direction is changed from to CCW to from CW with right and left pay attention to it 3 1 PARTS REPLACEMENT This section covers the procedures for the disassembly reassembly and installations in the field This section describes the disassembly procedures and for reassembly procedures basically proceed with the disassembly procedu
26. 30 165 5 31 4PP3522 3568P001 32 40325401 33 40325301 40317901 35 40318001 Lever Paper near end Parts No Name Reccomended Q ty Remarks 50 1000 4 4120 1137 001 050 Photo Sensor 40375202 To Paper End 40375302 Connection Code Wire 40337301 LEVER Sub roller caulking 40337601 ROLLER Link Sub Connection Code Wire 40433701 Bracket Sub roller Press fitting 1 40358101 40317701 GEAR Planet 228 40367101 BRACKET Spring Sub 40607301 SPRING Sub Roller 40313201 ROLLER Ass Feed 40371901 SPRING Release 105 1051 2001 TR 23 11 14 CORE 40298001 PLATE Base 40494601 Spacer Card KGPS 5RF 40298101 40159901 Power Supply Unit AC DC 120V 1 40160001 Power Supply Unit AC DC 230V 1 40160301 40307301 Plate Planet 4 FILM Insulation ODA 120V O 4ODA 230VJOEL NT Power Supply Unit High Voltage 1 BRACKET AC Appendix A CENTRONICS PARALLEL INTERFACE 1 Connector e Printer side 36 receptacle Type 57RE 40360 830B D29 made by DDK or equivalent 36 pin plug Type 57 30360 made by DDK or equivalent e Cable side 2 Cable e Cable length 6 ft 1 8 m max a shielded cable composed of twisted pair wires is recommended for noise prevention Note Cable is not provided 3 Table of parallel I F signals Pin No Signal name Signal direction Compatible
27. 40247301 Rollerfeed 1 1 6 f 28 4PP4043 4489P001 Feeding bearing 1 1 3 6 29 4 4076 3949 001 1 6 30 40247001 Gea feed 1 1 2 2 6 12 f 31 40247201 Pulley feed 1 1 6 f 32 140247801 JBraketj int 11 1 6 Jf 93 4044341 Springjoint 1 3 6 34 402471 Gearjoint 11 6 f 35 40247501 jSnadfthoping 1 1 6 f 36 4 3522 3568 001 ADF bearing 2 2 6 12 37 40433701 jBracketsubrolle Caukng 1 1 3 6 38 40317701 7 28 1 1 3 6 99 40358101 Plate planet 10 3 6 f Bracket spring sub 0 3 6 fh 41 40607301 1 3 6 Jf 42 40317601 Gearzza 171 3 6 f 43 40385901 1 3 6 44 40363301 11 0 3 6 45 40442501 Guide roler 2 0 6 12 f 46 4 4076 5308 001 1 3 6 47 40363401 Spacer hopping 1 O 3 6 48 40348401 7 Gearhoppinggn 1 1 3 6 f 49 40348501 7 jBracketplanetassy 1 1 6 Lever paper end Table 6 1 High Capacity Second Third Paper Feeder 2 2 4031801 Leverpapernearend 1 1 4038711 1 1 3 6
28. and ENTER keys Set the LED head drive time Refer to Section 4 2 Replace the Main board or Power Supply Unit High Voltage 5 Cyclic error Image drum 3 71 94 2 mm Developing roller 2 05 52 1 mm Toner supply roller 3 24 82 24 mm Charging roller 1 37 34 7 mm Cleaning roller 1 17 29 8 mm Transfer roller 2 28 58 mm 3 46 88 mm Back up roller 3 46 88 mm Notes 1 After replacing the image drum cartridge set the printer in the user maintenance mode by turning the power on while pressing the MENU key and reset the drum counter Refer to User s Manual 2 After replacing the fusing unit assy set the printer in the engine maintenance mode by turning the power on while pressing the FORM FEED and ENTER keys and reset the fuser counter Refer to See 4 1 6 Print voids Is the contact plate of the transfer roller contacted with the Power Supply Unit High Voltage properly See Figure 6 5 e No Adjust the contact plate contact to contact the Power Supply Unit High Volt age properly and the shaft of the transfer roller Yes Replace the transfer roller See 3 3 36 Has the trouble been removed e Yes End No Are the contacts of the toner supply roller developing roller image drum and charging roller contacted with the contact assy properly No Adjust the contacts to contact the contact assy properly Yes Replace the image drum
29. 2 LCD message troubleshooting If troubles are not correctable from the LCD message trouble list follow the troubleshooting flowcharts given here to deal with them The printer does not work normally after being turned on 2 Jam error Paper input jam 1st Tray Paper input jam Front feeder Paper feed jam Paper exit jam 5 SSIO Synchronous Serial I O error 1 between the Main board and the Power Supply Unit High voltage I F time out between the printer and the operator panel 7 7 I F time out response between the printer and optional tray 2nd tray 3rd tray multi feeder Messages cannot be received through the parallel interface Messages cannot be received through the serial interface Data cannot be received through the OKI HSP interface BEN 11 I F time out between the printer and the Duplex unit Printing sequence error in the Duplex Note When replacing the Main board install the EEPROM from the old Main board onto the new Main board CD The printer does not work normally after being turned on Is message shown in the LCD display for less than 1 second NO NO NO Is the AC cable connected properly e No Connect the cable properly Is the message 16 columns display only on the top row shown in the LCD display e Yes Replace the Main board Are the following voltages applied to the corresponding pins of the POWER con
30. 4 Using the connector remover remove the nylon cord 3 from the square shaped connector 2 Confirmation after assembly 1 The square connector 2 should be horizontal to the cover frame 5 MEMO _ 3 3 4 Hopping Motor 1 Remove the upper cover see 3 3 1 1 to 3 2 Remove the AOLE PCB see 3 3 2 3 Remove two screws 1 then remove the hopping motor 2 14 3 3 5 Planet gear 1 Remove the upper cover see 3 3 1 1 to 3 2 Remove the AOLE PCB see 3 3 2 3 Remove two screws 1 then remove the motor bracket assy 2 and the planet gear 3 E T9 3 3 6 Roller B the upper cover see 3 3 1 1 to 3 Disengage the plate and frame on both sides Remove the separator assy see 3 3 1 4 to 5 the AOLE PCB see 3 3 2 the motor bracket assy see 3 3 5 Remove the gear 1 Shift the roller B 2 to the right lift it by holding on its left side and pull it out to the left side The bearing 3 also comes off at the same time so be careful not to lose it Further pay special attention to make sure that you do notdamage the sensor lever 4 while going through this procedure Engaging section 16 3 3 7 Roller A Remove the motor bracket assy see 3 3 5 Remove two gears 1 and then another gear 2 Disengage the plate 3 and the frame 4 Remove four scre
31. 40304301 Cover Side I F 40323401 Plate Shield 40304001 Cover Rear 40304501 Frame OP panel Ass ODA 40304503 Frame OP Panel Ass OEL 40304502 Frame OP panel Ass INT 2381002P0007 SMCD6X280BDX10 B EB jou uma 1 s e 1 ts ste 3 3 wem 3 of fe aseara 1 0 5 lf 2 L d AAS N V N WH 2 9 N TEN OE Figure 8 2 Frame Main Unit Table 8 2 Frame Main Unit No Parts No Name Q ty U Reccomended Q ty Remarks 100 1000 ee emus mem e a um wen o s _ n aerar sosro wae o _ o e 1 o e fp 1 e 8 uas e wmmeswew Rock 1 _ s wie o 1 ele
32. 8 Cleaning After the end of the transfer residual toner on the image drum is attracted to the cleaning roller temporarily by static electricity to clean the image drum surface Image Drum Supply Transfer Roller 9 Cleaning of rollers The charge roller transfer roller and cleaning roller are cleaned in the following cases e In warming up at power on time e In warming up after the cover is opened and closed e When the number of accumulated sheets is 10 or more and the printout operation ends Changes in bias voltage applied to each roller move adhesive toner from the roller to the image drum and return it to the developer 2 3 4 From CPU Revision of LED Head Illumination An LED correcting head which is capable of correcting the illumination of the LED for each dot is being used in this printer LED illumination correction function of 16 steps is carried out by using an EEPROM which is installed in the LSI that maintains the LED illumination correction values and an LED correction drivers together as a pair The LED correcting head consists of the correction control LSI LED drivers and an LED array The block diagram of the LED correcting head is shown below Correction Control LSI EEPROM LED Driver LED Driver LED Array DATA 1 LED Driver LED Driver p The LED correcting head is a 600 dpi head with the LED drivers located on both sides of the LED array with a 300 dpi pitch spac
33. ConnecionCode Wie 11 1 3 6 fTolNSensr 18 40460160 1 FILM Pinch R 2 2 6 12 f 2 19 4029700 11 1 3 6 HR 20 4059751 lt lt JGEARAsy 1 1 3 6 f 2 02 21 4PB4076 5330P001 Moor 117 36 O 22 4038181 JROllERFeedF 11 1 3 6 2 23 40381901 ROLLER Feed R 11 1 3 6 22 24 4 4043 4489 001 BearingFeed 1 12360 25 4 4076 3949 001 133 9 18 2 26 40339901 7 7406 1 1 3 6 hf 27 4034000 JPULEYMXL2 12 2 6 12 d 28 40448101 Mini Pitch Bet 11 1 3 6 29 40382000 7 JOOLLERFeedRV 1 1 36 0 30 4 4076 5345 001 1 11 36 22 31 4PP3527 5355P001 FX30 Bearing 11 32 403380 7 GEARZ488 121 36 33 40338901 7 LEVER Sensor F R 2 2 6 12 34 403861 SPRING Sensor F R 12 2 6 12 35 40375301 Connection Code Wire 11 1 3 6 fToFrontSensot 36 40483400 SOLENOID Ass 1 136 20 37 403995500 JSPRNGSL 1 1736 38 40382601 PLATEEathFR 11 1 3 6 2 39 4032901 A pPLATEEathFR2 11 1 3 6 f 202 40 4038281 PPLATEEathBT 1 1 3 6 0 41 2 12606 2 16 12 42 RE SK pERIng 1 1 3 6 2 43 4033931000 J LEVERLoK DU 2 2 6 72 f 44 40338601 lt lt LEVERReleasDU 2 2 6 12 f 45 40393700 JSPRINGSupprt 12 2 6 12 f 36 0 PLATE Ear
34. Mechanism E Centronics aM Parallel interface Bidirection E Er RS 232C Serial I F Motor Main Hopping motor LAN etc OKI HSP Paper tray interface board Option Papersize detection switch High Capacity Second Paper Multi Feeder Feeder Option Option 4MB 8MB PostScript High Capacity Flash ROM SIMM SIMM Third Paper Duplex Unit Option Option Feeder Option Option Consumables mp Paper feeding gt Singal flow produced by third vender Figure 1 1 1 2 Printer Configuration The printer unit consists of the following hardware components e Electro photographic processor e Paper feeder e Controller e Operator panel e Power sensor board Figure 1 2 shows the printer unit configuration Plate Shield Frame OP panel Assy Cover Side l F Face up stacker Assy I D Unit Base Unit Figure 1 2 1 3 Optional Configuration The options below are available for use with OKIPAGE20 OKIPAGE20n They are sold separately from the printer unit 1 Multi Feeder 3 DUPLEX Unit 3 D RAM SIMM module 72 pin SIMM 4 MB 8 MB 16 MB 32 MB 4 Flash ROM module 72 pin SIMM 4MB 8MB b PostScript ROM module 72pin SIMM 1 4 opecification 1 Type 2 External dimensions excludes protruding Portion 3 Weight 4 Development method Exposure method 5 Paper us
35. N 7 OPTSCLK N 6 To the Printer 5 2 Layout AOLE PCB PARTS LIST 6 12 Table 6 1 Multi Feeder 1000 5644600 Separator 1 3 8 08 6514 001 Rorera Jo 1 9 8 aPP4085 5520P00 3 1 3 8 4PB4083 6075P001 Hopping motor 1 1 3 6 X 3PB40835524PO01 RolerC 1 1 3 8 4ZOJ 4PB4043 4614P001 One way pulley i 1 3 8 Mmipkhbet 3 8 4PB40434743PO01 Roller B 1 1 3 6 9 6 220100001417 Comedo MSAS7TAN MB 1 0 3 6 4764011 4448 004 Nylon 1 0 8 6 o APP4083 2304P001 S mernlergea 3 9 8B OKI Oki Data Corporation 4 11 22 Shibaura Minato ku Tokyo 108 Japan Tel 81 Japan 3 Tokyo 5445 6159 Fax 81 3 5445 6188 40029801TH 12 97
36. Precautions for Parts Replacement 1 Before starting parts replacement remove the AC cable and interface cable Disconnect a Remove the AC cable in the following procedure i off the power switch of the printer li Disconnect the AC inlet plug of the AC cable from the AC receptacle iii Disconnect the AC cable and interface cable from the printer the printer in the following procedure i Connect the AC cable and interface cable to the printer ii Connect the AC inlet plug to the AC receptacle iii Turn on I the power switch of the printer Connect Do not try disassembly as long as the printer is operating normally Do not remove unnecessary parts try to keep disassembly to a minimum Use specified service tools When disassembling follow the determined sequence Otherwise parts may be damaged Since screws collars and other small parts are likely to be lost they should temporarily be attached to the orginal positions When handling ICs such as microprocessors ROM and RAM and circuit boards do not wear gloves that are likely to generate static electricity Do not place printed circuit boards directly on the equipment or floor Service Tools Table 3 1 shows the tools required for field replacement of printed circuit boards and units Table 3 1 Service Tools No 1 100 Philips 1 2 2 5 mm screws gt screwdriver No 2 200 Philips 3 5 mm screws screwdriv
37. cover 2 using a flat head screwdriver and remove the upper cover 2 4 Remove two pan head screws 3 and remove the cover frame 4 5 Disengage the plate and the frame Refer to 3 3 6 6 Remove two screws 5 and remove the separator assy 6 7 Lift the paper stay 7 and disengage it from the separator bracket 8 then remove the separator 9 The spring 40 comes off at the same time so be careful not to lose it dm Less than 0 1mm Plessure spring Check at the time of assembly Roller When the secondary stage of idle gear 17 is turned in the A direction after engaging the plate and the frame the inclination of the pressure roller 42 is less than 0 1 mm against the plate 43 as shown in the right figure When the inclination of the pressure roller exceeds 0 1 mm fine adjust it by pressing with fingers as shown in the left figure with the pressure spring roller installed 3 32 AOLE PCB 1 Remove the upper cover see 3 1 1 1 to 3 2 Remove two screws 1 and remove the AOLE PCB 2 3 Remove the connector 3 4 Remove the connector 4 Caution careful to set the sensor plate properly when mounting AOLE PCB Sensor plate E 12 3 3 3 Square shaped connector 1 Remove the upper cover and remove the cover frame 5 see 3 3 1 1 to 4 2 Remove the AOLE PCB see 3 3 2 3 Remove the screw 1 and remove the square shaped connector 2
38. default corresponding to each destination will be loaded Category LCD READY ATTENTION Trouble or status message LED LED ERROR CONTROLLER Light off Flash A fault occurred in the printer nn aaaaaaaa Turn the power off then on to release the error display If the error display cannot be released by this procedure call a service person Code Error nn An error was detected by program hash check Replace the program ROM Location BOARD AAA IC6 IC8 Replace the Main board BOARD AAA Note When replacing the Main board install the EEPROM mounted on the replaced Main board 20 An error was detected by font format check Replace the font ROM Location BOARD AAA IC6 IC8 Replace the Main board BOARD AAA Note When replacing the Main board install the EEPROM mounted on the replaced Main board 30 An error was detected by resident RAM check Replace the Main board BOARD AAA Note When replacing the Main board install the EEPROM mounted on the replaced Main board An error was detected by EEPROM check Replace the EEPROM Location IC19 Replace the Main board BOARD AAA An error was detected by optional software ROM Replace the PostScript module BOARD MSM or BOARD FSL An error was detected by optional RAM check Check the optional RAM for proper connection Replace the optional RAM fault occurred in the fan motor Connect the fan motor cable properly Replace th
39. electrical physical characteristics of the interface see the interface technical manual Printer Network etc Control board LAN expansion board OKI HSP interface Fig 2 2 2 5 7 RAM module e Pin layout 1 36 3 T2 e Basic specificaton Type 72 pins Standerd SIMM 82 bits buss width Note EDO SIMMtype cannot be used Access time 60 5 70 5 80ns 100 5 Capacity 4 8 16 32MB Parity None 8 Flash ROM module e Pin layout Board FSL e Basic specificaton Type 72 pins SIIM 32 bits buss width Access time 9005 Capacity 4 or 8MB 9 PS ROM module PS ROM module is BOARD MSM or BOARD FSL BOARD MSM consists of MASK ROM BOARD FSL consists of Flash ROM 8MB e Pin layout BOARD MSM Or BOARD FSL e Basic specificaton Type 72 pins SIIM 32 bits buss width Access time 100ns 5 90n Board FSL Capacity Board MSM 8MB Board FSL e Emulation X Pstscript Level 2 2 2 Power Supply Unit The power supply unit consists of an AC filter circuit a low voltage power supply circuit a high voltage power supply circuit heater drive circuit and photosensors 1 Low voltage power supply circuit This circuit generates the following voltages Output voltage 15 V Logic circuit supply voltage 30 V Motor and fan drive voltage and source voltage for high voltage supply 18 V Reset circuit RS232C L
40. etc This function shall not be open for users 5 PERIODIC MAINTENANCE 5 PERIODIC MAINTENANCE 5 1 Periodic Replacing Part As specified below the parts shall be replaced periodically Part name Condition for replacement Toner cartridge 9 000 LED head Consumables Regist Paper dust Image drum cartridge 30 000 LED head Consumables Regist Paper dust Heat Assy 200 000 Maintenance Kit Transfer Roller 200 000 Maintenance Kit Back up Roller Assy 200 000 Maintenance Kit Feed Roller Assy 200 000 Maintenance Kit Hopping Roller Assy 200 000 Maintenance Kit Separation Frame Assy 200 000 NEN Maintenance Kit Note Maintenance Kit shall be replenished by user s calling to serviceman 5 2 Cleaning Remove any toner and dust Clean inside and around the printer with a piece of cloth when necessary Use the handy cleaner VACCUM for cleaning the printers interior Note Do not touch image drum LED lens array and LED head connector block 5 2 1 Cleaning of LED lens array Clean the LED lens array or replace the toner cartridge when white lines or stripes void light printing are generated vertically down the page Note The LED lens array must be cleaned with an LED head cleaner White lines or stripes void light printing 5 2 2 Cleaning the Plastic Film 1 Open stacker assy and remove unit After cleaning LED head wipe off the paper powder b
41. necessary Replace AOLE PCB 4 3 2 Troubleshooting Flow JAM error Paper Input Jam Does paper jam at the inlet when the power is turned on YES 15 paper located above the inlet sensor lever e YES Remove the paper NO Is the inlet sensor lever operating normally Replace the inlet sensor lever YES Clean the inlet sensor 1 on the power supply unit High Voltage or replace the power supply unit High Voltage See Fig 2 3 Sensor Layout Diagram NO When the paper is fed in does the paper input jam occur YES Is paper being fed to above the inlet sensor lever YES Isthe inlet sensor lever operating normally Replace the inlet sensor lever YES Clean the inlet sensor 1 on the power supply unit High Voltage or replace the power supply unit High Voltage See Fig 2 3 Sensor Layout Diagram e NO Replace the feed roller roller A or roller B e YES Set the paper properly NO Isthe belt torn e YES Replace belt NO Is the pulse motor turning e YES Replace planet gear NO Isthe connector cable being connected properly Connect the connector cable properly YES Check the coil resistance approx 320 of the stepping motor Is it normal Replace the stepping motor Are the feed roller roller A and roller B rotating e YES Replace the AOLE PCB 5 CONNECTION DIAGRAM 5 1 Interconnection Diagram Pulse motor M T3 d 1 4 OPTPSIN
42. perform recovery printing and the error display is released If this error occurs frequently see chapter 6 5 2 Category LCD status message Trouble or status Daily status C3 DUPLEX INPUT JAM REMOVE THE PAPER ATTENTION FEED IHE PAPER FEED JAM2 THE PAPER FEED JAM3 EAPER OPEN JAM IHE PAPER PAPER INPUT CHECK ATTENTION Informs that in feeding papers from tray n to the Duplex unit jam occurs in the separator or Duplex unit by monitoring OUTSNS ON DUP INSNS ON Tray n Tray1 Tray2 Tray3 Front Multi Feeder Informs that in feeding papers form n tray to the Duplex unit a jam occurs in the separator or Duplex unit by monitoring DUP INSNS ON DUP INSNS OFF Informs that in feeding papers from n tray to the Duplex unit a jam occurs when a paper is reversed to the reverse roller of the Duplex unit by monitoring MOTOR Duplex ON DUP SNS ON Informs that in feeding papers from n tray to the Duplex unit a jam occurs when a paper is impinge fed in the Duplex unit by monitoring DUP R SNS ON DUP SNS ON Jam which occurs in feeding papers to the Duplex when the first tray cassette is pull out in paper remaining state Structurally No first tray cassette will cause no reverse root for papers and open the Duplex cover downwards Informs that a jam occurs during paper running after exiting from the tray Remove all of t
43. remove the connector IMSA 9714N 14A D 17 3 3 7 pulley pulley Idle Mini pitch belt Plate Earth shaft Gear double Tray switch assy Remove the Motor See section 3 3 5 Remove the Connector See section 3 3 6 Unscrew two screws 1 to remove the motor bracket 2 At this time the Mini pitch belt 3 and Gear double 4 be removed simultaneously Disengage latchs to remove the Frange pulley 5 and pulley Idle Unscrew a screw 7 to remove the Plate Earth shaft 8 Unscrew a screw 9 to remove the Tray switch assy 49 3 3 8 Roller feed 1 Remove the Motor See section 3 3 5 2 Remove the Connector See section 3 3 6 3 Remove the motor bracket See section 3 3 7 4 Disengage latchs to remove the Feeding bearing 1 5 Disengage latchs to remove the Pulley feed 2 At this time the Gear feed 3 and Bush 4 can be removed simultaneously 6 Remove the Roller feed 5 3 3 9 Bracket sub roller Remove the Roller assy hopping and Roller assy feed See section 3 3 1 Remove the Roller feed See section 3 3 8 Unscrew a screw 1 to remove the Bracket joint 2 Spring joint 3 and Gear joint 4 Take away the E ring 5 to remove the Gear hopping 6 Disengage latchs to remove the Gear hopping 2nd 7 At this time the Bracket planet assy 8 can be removed simultaneously Take away two E ring 9 and pull out the Knock pin 40 to remove the G
44. sheet of paper in the 1sttray The Main Motor is always driven in direction c CCW on printing After the paper fed approx 30mm from tray the Clutch Feed drives the Align Roller to advance the paper until the Inlet Sensor turns off Aligning After turning on the Inlet Sensor the paper fed by a predetermined length and choked up to the wedge space formed by the Regist Roller and the Pressure Roller so that to align the skew of paper During the paper fed from the 1st tray the build in clutch of Gear C is idled and not to drive the Front Hopping Roller Feeding After aligned the paper the Hopping Motor turned off and stop hopping Also the Clutch Feed turned off and the Align Roller idled freely Then Clutch Regist turned on and the Regist Roller start to feed the paper After the paper fed the 1st Hopping Roller is freely idled by releasing build in one way clutch also the Sub Roller is freely idled by escaping the Planet Gear Start printing after the paper turns off the Write Sensor Pressure Roller Inlet Sensor Clutch Regist Write Sensor SUN ID L 2 7 7 Clutch Feed v Gear D Main Motor b Hopping from the Front Feeder CD Hopping The Front Feeder Plate is normally locked at the lower position by the Release Lever and turn the Micro SW on Top of the FF Cam which attached on end of the Front Hopping Shaft is normally located Upper position 0 t
45. switch assy 3 3 7 Roller feed 3 3 8 Bracket sub roller 3 3 9 Frame side L 3 3 10 Frame side R 3 3 11 3 3 1 Roller assy hopping Roller assy feed 1 Remove the Case assy cassette 1 2 Disengage latchs to remove the Roller assy hopping 2 3 Disengage latchs to remove the Roller assy feed 3 3 3 2 Cover front assy 1 Unscrew two screws 1 to remove the Cover front assy 2 3 3 3 Board BBB 1 Unscrew a screw 1 to remove the PCB cover bracket 2 2 Take away all connectors 3 and three screws 4 to remove the Board BBB 3 3 4 Lever paper end Lever paper near end 1 Unscrew five screws 1 to remove roller cover bracket 2 and PLATE Earth L 3 2 Disengage latches to remove the Lever paper end 4 and Lever paper near end 5 3 35 Motor Hemove the Cover front assy See section 3 3 2 Remove the PCB cover bracket See section 3 3 3 Remove the roller cover bracket See section 3 3 4 Unscrew seven screws 1 to remove the bottom bracket 2 Unscrew five screws 3 to remove the Frame side L assy 4 and Frame side R Take away two screws 6 and connector to remove the Motor 7 aS 3 3 6 Connector IMSA 9714N 14B Connector 5 9714 14 1 Remove the Motor See section 3 3 5 2 Unscrew two screws 1 to remove Connector IMSA 9714N 14B 2 and Plate Earth FR 4 3 Unscrew two screws 4 to
46. 1 Go through the basic checking items provided in the Operator Guide 2 Obtain detailed information concerning the problem from the user 3 Go through the checking in the conditions similar to that in which the problem occurred Preparations for the Troubleshooting 1 Display on the Operator panel The status of the problem is displayed on the LCD Liquid Crystal Display on the Operator panel Go through the appropriate troubleshooting procedures according to the messages displayed on the LCD 43 Troubleshooting Method When a problem occurs go through the troubleshooting according to the following procedure Problem occurs Problem displayed by Troubleshooting Carry out detailed the LCD message according to the LCD troubleshooting Status Message List according to the see 4 3 1 Troubleshooting Flow see 4 3 2 4 3 1 LCD Status Message List The listing of the statuses and problems displayed in the form of messages on the LCD is provided in Table 4 1 Table 4 1 Classification LCD Status Message Recovery method Interface Timeout DUPLEX FEED JAM2 REMOVE THE PAPER DUPLEX FEED JAM3 REMOVE THE PAPER DUPLEX OPEN JAM REMOVE THE PAPER Informs that a jam occurs in retracting papers into the re verse roller within the Duplex Unit Informs that a jam occurs in reversing papers in the re verse roller within the Duplex Unit Informs that a jam occurs in impinge feeding papers within the Duplex Unit Inf
47. 16mm Paper length 210 to 356mm Weight e 60 105 g m2 e Paper loading capacity 75 g m paper 530 sheets 1 2 Appearance and Parts Name Frame side R Assy over front Assy Cassette Assy 2 1 DESCRIPTION OF OPERARTION Driving Mechanism The high capacity second third paper feeder only a top paper which is set in the cassette by a signal from the printer 1 Second paper feeder as an example is shown First of all the hopping motor rotates in the direction of arrow A Roller C rotates by way of idle gear on the same shaft on which the hopping gear is placed At the same time the planetary gear D shifts in the direction of arrow E and a sub roller gear and a sub roller on the same shaft rotate Roller C and sub roller make a paper hop Also the planetary gear G shifts in the direction of arrow H and Roller K rotates and when the length of sheet is legal 13 inch or more a hopping paper will be impinged to the regist roller within the printer When the length of paper is A4 or less hopping papers will be carried until the defined amount When the length of paper is A4 or less the hopping roller rotates in the direction of arrow B next At this time the planetary gear G shifts in the direction of arrow rotate Roller K and impinge the papers which are carried to the defined amount to the regist roller within the printer During the hopping roller is rotating Roller C is racing because it includes one way bearin
48. 30V YES END Is the face up stacker drawn out or pushed into the printer completely Draw the face up stacker out the printer completely or push it into the printer completely Is the eject roller assembly installed properly Install the eject roller assembly properly Replace the eject roller assembly Paper size error Is paper of the specified size used No Use paper of the specified size Yes inlet sensor lever and paper width sensor lever operate smoothly No Replace the inlet sensor lever or paper width sensor lever Is the printer recovered No Clean the inlet sensor 1 or paper width sensor on the Power Supply Unit High Voltage See Fig 2 3 Sensor Layout Diagram Is the printer recovered e No the Power Supply Unit High Voltage YES END YES END YES Does the outlet sensor lever operate smoothly No Replace the outlet sensor lever Is the printer recovered No Clean the outlet sensor on the Power Supply Unit AC120V or 230V See Fig 2 3 Sensor Layout Diagram Is the printer recovered Replace the Power Supply Unit AC120V or 230V YES END YES END Yes Clean the inlet sensor 1 inlet sensor 2 and outlet sensor See Fig 2 3 Sensor Layout Diagram Is the printer recovered the Power Supply Unit High Voltage YES END Fuser unit error ERROR 71 ERROR 72 ERROR 73 Turn the power OFF ON e Does fuser unit error occur immedia
49. 40375101 Connectioncodeewre 1 0 3 6 4LP 1313 121 Miipithbet 1 1 BF 40371301 6 132 40313201 215118 2 40378401 _1 40607101 1 3 6 40496001 0 3 6 NK3 16SUS 40387401 40387601 6 6 1 40387301 Plate Earth BL 40432901 Plate Earth R 40583601 Core Assy 2nd Tray _1 ols d p 77 7 40387501 Plate Earth BR Ge ae D 40371301 403132017 40378401 2 40607101 40496001 NKS 6SUS 40387401 2 i 1 40387601 40387501 40387301 2 40432901 40583601 To Printer or 2nd Tray Appendix E Multi Feeder Maintenance PREFACE This Maintenance Manual is intended for the service personnel and describes the field maintenance methods for Multi Feeder option of OKIPAGE20 OKIPAGE20n LED Page Printer Refer to the USER S MANUAL for equipment handling and operation methods CONTENTS 4 1 MERERETUR E 4 1 2 External View and Component Names 4 MECHANISM DESGHIE 5 2 1 General Mechanism soit eter rit ot atrae soak sr nr ips esa EE De
50. 5 C between pins 1 and 2 1 5 Q 120 V and 5 8 240 V between pins 3 and 4 See chapter 7 3 Yes Replace the fuser unit Is the AC voltage applied to the CN2 connector on the Power Supply Unit AC120V or 230V See Fig 6 3 Is CN2 connector connected to the Power Supply Unit AC120V or 230V e No Connect the connector to the Power Supply Unit AC120V or 230V properly Yes Is Pin 6 HEAT ON signal of the POWER connector of the Main board turned on In heater on state this pin is set to O V No Replace the Main board e Yes Replace the Power Supply Unit High Voltage YES Goto B 5 I F time out between printer and optional tray ERROR 81 ERROR 82 Is an optional tray 2nd 3rd tray or envelope feeder used Yes 15 connection between the Main board and the optional tray connected properly See chapter 7 1 e No Connect the cable properly Yes Replace the Main board 15 printer recovered e No Isolate the trouble by following the 2nd 3rd tray or multi feeder maintenance manual See appendix D or E YES END NO Replace the Main board 6 I F time out between printer and Duplex Unit ERROR 83 Is an Duplex Unit used Yes 15 connection between the Main board and the Duplex Unit connected properly See chapter 7 1 No Connectthe cable properly Yes Replace the Main board Is the printer recovered e No Isolate the trouble by following the Du
51. 65401 40409201 40409301 2PP4128 1096P001 40450501 HEAD Cable Assy 4PP4076 5009P001 Washer 3PB4076 5290P001 DC Fan Motor 92 40307201 PLATE FG F 40443301 Feeder Unit FRONT 40547201 LED HEAD 105A1046C1001 ZCAT1325 0530A R CORE 4PP4043 4489P001 Bearing 2 Cable Cover 2 1 1 1 1 1 1 1 1 2 1 1 Co 1 Figure 8 3 Base Unit v5 8 Table 8 3 Base Unit No Parts No Name Reccomended Q ty Remarks 50 100 1000 2 40597101 GUIDE Cassette L EH For Maintenance 3 4PP4122 1217P001 6 4PP4076 5358P001 8 4076 5359 001 4PP4043 4526P00 EN 12 40597201 GUIDE Cassette R For Maintenance 13 40349101 Lever Link Caulking 14 40368302 Board PXC 15 2201000P0140 Connector IMSA 9714N 14A 16 4 54011 4448 Nylon Connector Cord PIE ehe eke ekekeke ELL n flee fe rt 17 4PP4076 5360P001 Detector Spring 18 40389801 PLATE Earth Bottom 19 40518501 PLATE Earth Link 20 2201000P0141 Connector IMSA 9714N 14B 21 40375001 22 40316901 23 40377801 40597301 25 40322101 Connection Code Wire PLATE Bottom FRAME ASS Hopping FRAME Hopping PLATE Hopping caulking SHAFT Hopping ROLLER Guide ROLLER Assy Hopping GEAR Z38 Knock Pin ADF Bearing GEAR Z58 GEAR Z42 To Duplex N Co 1 N For Maintenance 26 40317401 40442501 28 40371301 29 40317601
52. 97 JOSUaS jede 726 181497 10SU 1euo e2 1osueg 1no ssy 19 91 cc EFTE 0055 yeys 3207 dg oe 3 ssy aping 1 8166 q31 6 jadweq 82 J9 0 reg N4 josueg LESE 9 9L 0266 uoneredeg Assy awes4 6L poo J ssy jsiDeu Assy orc 1910095 Assy 1990946 yg ssy Jejou 6 1U0J 4 Iluf J9peo vvv preog Assy V3H Y L J9 OH 4915461 55 5 ejoesse Jaded Assy jaued dO Assy 12010 Assy 1932215 dn ooe J 3 3 1 Face up Stacker Assy 1 Turn off the AC Power Switch and unplug the AC Power Cord from the outlet 2 Disconnect the Interface Cable 1 3 Open the face up stacker unhook the right and left projections and then remove the face up stacker assy 6 3 3 2 Contact Assy 1 Open the stacker assy and unscrew 2 screw 2 to remove the assy side L 2 Unscrew 2 screws 4 and remove the plate contact 5 and contact Assy Note Don t deform the electrode plates of the contact assy 70 wi V 2 S E EE c 7 2 2 BAD T
53. ARTS GIST E 24 1 OUTLINE 1 1 Functions This Multi Feeder is installed on the front section of the printer and it supplies paper automatically through the operation of hopping motor which is driven by signals sent from the printer The main functions are the followings e Paper that be used Paper type Quanity of paper Plain paper A6 106 x 148 mm A4 64 90 g m Post card label sheet Post card A4 size equivalent 64 128 g m C5 DL COM 10 COM 9 Monarch 64 90 g m approximately 50 sheets of envelopes can be set at a time 1 2 External View and Component Names Link Hopper cover Upper cover Roller Paper supporter Paper guide L L Square shaped connector Cover frame 2 1 MECHANISM DESCRIPTION General Mechanism The sheet or envelope at the very bottom of the stack is fed into the printer one at a time when the Multi Feeder receives the signal from the printer 1 First the hopping motor rotates in the direction of arrow D The planet gear F moves to the direction of arrow G and drives rollers A and B The roller C is linked to pulley which is on the same shaft as roller A and it also turns at the same time as roller A The paper is fed for a predesignated distance until the leading edge reaches roller C 2 Next the hopping motor rotates in the direction of arrow E The planet gear F moves
54. At this time the damper arm can also be detached simultaneously 3 3 7 Sensor Stacker Full 1 Turn the AC power switch off Unplug the AC power cord from the outlet 2 Remove the Stacker assy See 3 3 6 3 Remove four screws 1 Remove stacker mount 2 by releasing the tabs at position 4 Remove Sensor stacker full amp by releasing speading the plastic tabs on each side of sensor Assy and lifting switch from cover 3 3 8 cover guide film 1 Turn the AC power switch off Unplug the AC power cord from the outlet 2 Remove the stacker Assy See 3 3 6 3 Unscrew 2 screws 1 release tabs at portion C1 Remove cable cover 2 guide film Note Use care when replacing cable cover Do not pitch crimp or cut cables or protective sheet 3 14 3 3 9 Damper 1 Remove the damper arm See 3 3 6 2 Unscrew 2 screws 1 and remove the two damper AN 3 3 10 Feeder Unit Front 1 Open the manual feed assy and release both right and left parts by pulling out the engagements on the lower part Stand the manual feed assy on end and unhook the engagements with both right and left manual feed hopper stays Remove the OP panel assy See 3 3 4 Unscrew 5 screws 2 and remove the feeder unit front 3 3 11 Roller Assy Regist 1 Remove the feeder unit front See 3 3 10 2 Remove E ring 3 gear assy clutch and four screws 1 in this o
55. Blockly faded print Is toner low e Yes Supply toner No Is paper of the specified grade used No Use paper of the specified grade e Yes Clear the lens Is the LED head installed properly No Install the LED head properly Yes Is the lens of the LED head dirty e Yes Decrease the printer setting number 0 5 1 Refer to User s manual Figure 6 6 7 WIRING DIAGRAM WIRING DIAGRAM T 1 1 Interconnect Signal Diagram xejdnq d9c V3H 0 1 YOSNAS TINA YAMANLS E 1 39V110A 1418 H3MOd gt U aleje gt 27 Co Ro LOV3H 92 d3MOd Ig AG 1132415 935 3 02 OV qxq qavog VW Vv dquvog puz aNg O U O c 70 gt r 70 DE HOSN3S ANJ HVHN H3dVd QNS 430334 HOSN3S H3dVd AGE ONIddOH HOS H1N9 Y37104 NOLLVHISIO3 HO4 HOLITIO HOLOW r N HOSN3S NLHdINH 9 35D 6 A8 OOd dHvOg 1 2 Motor driver for Main Motor Motor driver for Hopping Motor EEPROM PCB Layout 1 Main board BOARD AAA pL 000000000000 GZ
56. LED head 4 Pull out the head spring from the post Note Don t remove two LED cable from the PC connector 2 3 3 19 Paper cassette ROLLER Ass Feed ROLLER Assy Hoppibg 1 Pull out the case assy cassette from the printer 2 Remove the ROLLER Ass Feed and remove the ROLLER Assy Hopping b VN 3 3 20 Frame Assy Separation Turn the AC power switch off Unplug the AC power cord from the outlet Pull out the case Assy Cassette from the printer See 3 3 19 1 Release two locks and remove frame assy separation At this time coil spring 3 is also remove Be careful not to lose this spring 3 3 21 Transfer Roller TR Gear TR Bearing 1 2 Open the stacker cover Unlock the lock by lifting the TR gear to remove the TR gear and roller transfer Note Don t place the removed roller transfer directly on the desk and so on When placing it lay a paper and the like under it Remove right and left 2 bearings from the frame main by sliding them inside while pushing them At this time 2 transfer springs R would be detached simultaneously 3 3 22 EP lock shaft Turn the AC power switch off Unplug the AC power cord from the outlet Remove Frame Main See 3 3 12 7 Remove screw 1 Turn EP lock lever L Assy in the direction of Remove spring Drop EP lock shaft down and turn in the direction of arrows B and remove it
57. Minimum difference 35 6 35 6 oF of wet and dry bulb temperatures 2 2 C Notes 1 Storage conditions specified above apply to printers in packed condition 2 Temperature and humidity must be in the range where no condensation OCCUIS Temperature 32 28 Operation range 10 20 80 Humidity 96 13 Noise During operation 50 or less without second tray 55 dBA or less with second tray At standby 45 dBA or less Power save mode 43 dBA or less 14 Consumables Toner cartridge kit 5 000 pages 5 Image drum cartridge 30 000 pages at continuous Simplex printing 19 000 pages 3 page job Simplex printing Simplex printing without Power Save 1 5 Safety Standards 1 5 1 Certification label The safety certification label is affixed to the printer in the position below ex ODA 120V Division of OKI America Inc 8 This Class B digital apparatus meets all USTEO Model No N22000A Model No N22000A requirements of the Canadian Interference OKIDATA 120VAC 50 60Hz 7A This device complies with Part 15 of the FCC Rules Operation is ations subject lo the following wo conditions 1 this device may not de la classe D Serial No harmful interference and 2 this devi any f s du R glem 135789 Made in Japan received including interference ndesired op du Canada pu 1 5 2 Warning label The warning label is affixed to the portion which may cause an
58. Nibble ECP 1 DATA STROBE PR nStrobe Host Clk Host Clk 2 9 DATA n PR Data 1 LSB 8 MSB 10 ACKNOWLEDGE lt PR nAck Ptrclk PeriphClk 11 BUSY lt PtrBusy PeriphAck 12 PAPER END lt PR Perror AckDataReq nAck Reverse 19 SELECT lt PR Select Xflag Xflag 14 AUTO FEED PR nAutoFb HostBusy HostAck 15 16 0V Signal Ground 17 CHASSIS GROUND Chassis Ground 18 PR 5V Supply 50 19 0V Signal Ground 20 27 Signal Ground 28 0V Singal Ground 29 0V Signal Ground 30 0V Signal Ground 31 INPUT PRIME PR ninit ninit nReverseRequest 32 FAULT lt PR nFault nDataAvail nPeriphRequest 33 OV 34 35 HILEVEL lt PR High Level 36 SEL IN PR nSelectin 1284 Active 1284 Active Connector pin arrangement 4 Signal level e LOW 0 V to 0 8 V e HIGH 2 4 V to 5 0 V 5 Interface circuit a Receiving circuit DATA STROBE and INPUT PRIME 741519 or equivalen D C mE Signal name DATA STROBE INPUT PRIME 5V R3 3 3KQ R3 7415374 or equivalent DATA BIT 1 to 8 b Sending circuit 5V 7407 or equivalent Open collector 6 Timing charts Compatible mode a Data receiving timing PARALLEL DATA DATA 1 to 8 DATA STOROBE 0 5 us min 0 5 us max UL BUSY 0 min 0 min ACKNOWLEDGE 0 5 us to 10 us 0 min b On line off line switching timing by ON LINE SW ON LINE SW SELECT c Off line on line switching timing
59. Third tray e function which sets the parameter selecting the third tray by paper source command on PCL 12 Select paper source command parameter Front tray e function which sets the parameter selecting the front tray by paper source command on PCL 13 Page placement e function which aligns a printing image to the right 14 SETTING e his function is used to adjust to improve print quality 2 1 Rough thick paper Low temperature humidity and or blockly faded print appeared 0 media enviroumental conditions 1 Rough papers high temperature humidity and or snowy print of high density pattern 15 Cleanig cycle e Set the page interval to perform Cleaning Sequence User maintenance mode menu system LCD display USER MNT Press the Menu key Press the After the end Enter key MENU of processing ON LINE RESET NG Press the Menu key Press the HEX DUMP Enter key ON LINE End of processing is performed by the power supply OFF Press the Menu key Press the After the end DRUM CNT DRUM CNT of processing ON LINE RESET RESET NG Press the Menu key Press the RSRC SAV key Press the Menu key Press the REC BUFF dor key Press the Menu key Press the E OP MENU lt DISABLE the ibo Is performed ENABLE 54 when the Enter key is pressed Press the E
60. UR Press the s X ADJUST or 0 mm Writing into the EEPROM is performed when the Enter key is pressed Press the Menu key 0 25 mm 0 75 mm 1 00 mm 1 25 mm 1 50 mm 1 75 mm 2 00 2 00 mm 1 75 mm 0 25 mm intervals 0 25 mm Y ADJUST 0 n Press the Menu key Press the DUP ADJ lt or 301 0 Press the Menu key 2ND TRAY or 3ND TRAY lt or Ei ee FRONT Xl or PLACE PG 4 or lt SETTING 0 Press the Menu key CLN CYCL X or Press the Menu key Press the Menu key Press the Menu key Press the Menu key Press the Menu key Press the Press the Press the Press the Press the Press the Press the Press the ON LINE key INITIALIZING ON LINE 0 mm 0 25 mm 0 75 mm 1 00 1 25 1 50 1 75 2 00 2 00 1 75 mm 0 25 0 25 0 50 0 75 1 00 2 00 2 00 mm 1 75 0 25 NORMAL MIDDLE HIGH Writing into the EEPROM is performed when the Enter key is pressed 0 25 mm intervals Writing into the EEPROM is performed when the Enter key is pressed 4 1 2 System maintenance mode The system maintenance mode is set when the
61. a state of In the off line mode the data is printed by pressing the waiting for following data FORM FEED button DATA PRESENT xxx ATTENTION Category LCD status message Trouble or status Daily status Indicate that the printer is printing Normal operation C PRINTING ATTENTION Indicates that job flush is designated and the state in which data is SE received and abandoned until the completion of a job ATTENTION Mean that in shifting to off line in data remaining state if you want to Flushing job Press the RESET button BLUSE abandon the data being processed execute the reset Resume Press the ON LINE button ATTENTION Indicates that not installed printer language is designated by Warning O PS NOT AVAILABLE command Warning When CLEARABL WRNINGS ON has been selected in the menu this indication is cleared by pressing Recover switch Informs that the printer becomes power save status heater off This is Normal operation POWER indicated in combination with other messages of the first line ATTENTION ATTENTION Informs that the sheets are near to end in a tray cassette common with Warning 1st 2nd 3rd when the remaining reaches 20 sheets it is detected C PAPER NEARED In ATTENTION Category LCD status message Trouble or status Daily status ATTENTION 0 ATTENTION ATTENTION ATTENTION
62. able This function selects the download table for the Multi Feeder 16 Setting of duplex feed length e This function sets the paper feed length of the duplex 17 N Fuser count display e Displays on the LCD the total number of printed pages counted at the engine 18 Fuser count reset e When the fuser unit is replaced the maintenance person uses this fuser count reset function to reset the fuser lifetime e Afterthefuser counter is reset the engine enters into the operation mode automatically 19 Engine reset e EEPROM areas used by the engine are reset to the factory default values e following items are excluded Menu level 1 Menu level 2 Operator panel menu disable enable Page print disable enable e Transition to the operation mode occurs upon completion of resetting Note Do not change the default value of 1 5 8 16 they are the parameter for adjusting in the factory e Engine maintenance mode menu system ENTER key FORM FEED LCD display ENG MNT Press the Menu key HEAD TYPE Press the Menu key LED HEAD No 17 Press the Menu key Press the Menu key PRINTPOS 0 mm Press the Menu key DRUM CNT T nnnnnn Press the Menu key DRUM nnnnnn Press the Menu key Press the Xl or 18 M Press the 4 or
63. by ON LINE SW ON LINE SW BUSY SELECT ACKNOWLEDGE 0 min 100 ms max d INPUT PRIME timing when set to the effective INPUT PRIME signal 50 us min HII SELECT Sus max RI ACKNOWLEDGE 10 ps INPUT PRIME 0 5 us to 10 m Nibble Mode Conforms to IEEE 1284 spec ECP Mode Conforms to IEEE 1284 spec Appendix B RS 232C SERIAL INTERFACE 1 Connector e Printer side 25 receptacle Type 17LE 13250 27 D4CC made by or equivalent e Cable side 25 pin plug Type 17JE 23250 02 D8C made by DDK Note Plug shall be able to be fixed with a lock screw 2 Cable Cable length 6 ft 1 8m max Cable shall be shielded Note Cable is not provided 3 Interface signal Pin No Signal name Abbreviation Signal direction Functions 1 Frame Ground FG Frame ground 2 Transmitted Data TD lt PR Transmitted data 3 Received Data RD PR Received data 4 Request To Send RTS lt PR Stay space level 5 Not connected 6 Not connected 7 Signal Ground SG Signal ground 8 17 Not connected 18 lt PR 5V 50mA maxx 19 Not connected 20 Data Terminal Ready DTR PR Data terminal ready 21 25 Not connected Connector pin arrangement 13 1 OOO OD QUO OD OO SO OO OD Cu E Oo 25 14 View from the cable side When the Reade Busy protocol is used for the buffer busy control method the busy signal can be set to Pin 20 DTR in the men
64. cartridge Has the trouble been removed e Yes End Note After replacing the image drum cartridge set the printer in the user maintenance mode by turning the power on while pressing the MENU key and reset the drum counter Refer to User s Manual Is the LED head installed properly Check connector HEAD1 14p HEAD2 12p on the Main board and PC Connector on the LED head e No Install the LED head properly Yes Replace the LED head or the head cable Has the trouble been removed Yes Note After replacing the LED head set the printer in the engine mainte nance mode by turning the power on while pressing the FORM FEED and ENTER keys Set the LED head drive time Refer to Section 4 2 Replace the Main board or Power Supply Unit High Voltage 7 Poor fusing 3 4 4 4 Is paper of the specified grade used No Use paper of the specified grade Yes Is the spring of the back up roller normal No Replace the spring Yes 15 contact of the fusing unit assy contacted with the contact assy properly No Adjust the contact of the fusing unit assy to contact the contact assembly properly Yes Replace the fusing unit assy Has the trouble been removed e Yes End Replace the Main board or Power Supply Unit High Voltage White belts or streaks in the vertical direction Are the LED lens dirty e Yes Clean the LED lens No Is th
65. ch when the time set in Press FORM FEED button PRESS FORM FEED WAIT TIME OUT of AUTO OPERATION in the level 2 menu has been TO passed since no data received ATTENTION Category LCD status message Trouble or status Daily status ATTENTION ATTENTION STACKER FULL REMOVE THE PAPER PAPER OUT mmmmmmmmmm tttttt tttttt INSTALL mmmmmmmmm tttttt PAPER REQUEST ERROR POSTSCRIPT ERROR MEMORY OVERF LOW Indicates that the face down stacker is full with sheets Indicates that no paper or paper cassette in a tray IIndicates that in an attempt to use the third tray the first or second tray which is the medium of the path is pulled out Indicates that in an attempt to use the second tray the first tray which is the medium of the path is pulled out Provisions The first and second tray should be returned Requests that a sheet indicated in the first line message is inserted Indicates that the interpreter detects an error due to the following reasons From this point on the receiving data is flushed until the completion of a job It is automatically canceled when job receiving is completed Indicates that the capacity of memory is Overflowed due to the following reasons The operation is continued by pressing Recover switch Additional RAM should be installed or the amount of data be reduced Too large printing data within one page Too large macro data Too large DLL data Overfl
66. chanism Clutch for Roller Regist Clutch for Feed Roller LED head Image data for each dot line from the control board is received by the shift register and latch register The 4992 LEDs are driven to radiate the image data to the image drum Fuser The fuser consists of a heater a heat roller a thermistor and a thermostat An AC voltage from the power supply board is applied to the heater under the control of the HEATON signal from the control board This AC voltage heats the heater The control board supervises the heat roller temperature via the thermistor and regulates the heater roller at a predetermined temperature 185 Normal paper MEDIA TYPE MEDIUM by connecting or disconnecting the AC voltage supply to the heater If the heater roller temperature rises abnormally the thermostat of the heater voltage supply circuit is activated to cut the AC voltage supply forcibly 2 3 2 Electro photographic process The electro photographic processing is outlined below Figure 2 5 shows the electro photo graphic printing process 4 Charging The surface of the image drum is uniformly charged with negative charges by applying a negative voltage to the charge roller 2 Exposure Light emitted from the LED head irradiates the negatively charged surface of the image drum The surface potential of the irradiated part of the image drum surface is lowered so that an electrostatic latent image associated with the print image
67. d DRAM gt ae TRANSISTOR Regist Roller Centronics 7407 7407 Clutch for TRANSISTOR Hopping Roller Hopping Motor RS232C DRIVER 75188 CPU DRIVER Main Motor LAN etc Operator panel Option LED HEAD Inlet sensor1 paper sensor Inlet sensor2 Toner sensor Sub CH SUB CHARGE ROLLER LOW VOLTAGE GENERATION CH CHARGE ROLLER CIRCUIT HIGH us TRANFER ROLLER VOLTAGE CIRCUIT BE DEVELOPPING ROLLER POWER SE TONER SUPPLY ROLLER SUPPLY UNIT CB CLEANING ROLLER high voltage AC120V 230V FAN HEATOR Figure 2 1 OKIPAGE20 OKIPAGE20n block diagram 2 1 Main Control Board BOARD AAA The control board consists of an one chip CPU a LSI program font ROM s DRAM s EEPROM a host interface circuit and a mechanism driving circuit 1 One chip CPU The one chip CPU is a custom CPU 32 bit internal bus 32 bit external bus 40 MHz clock that incorporates an RISC CPU and its peripheral devices and has the following functions Chip select controller Control of peripheral LSI ROM DRAM and 1 0 device Bus controller DRAM controller DMA controller Transfer of data from Host to RAM Serial interface controller Control of RS232C serial interface Parallel interface controller Control of Centronics parallel interface Timer Generation of various control timing Monitoring of paper running and paper size Serial I O port Control of serial interface between controlle
68. d Pin Location 6 18 JAM error 2 1 Paper input jam 1st tray Does a jam error occur when the power is turned on Yes NO Yes NO Is the paper at the inlet sensor lever Yes Remove the paper Does inlet sensor lever operate smoothly the inlet sensor lever Yes Clean the inlet sensor 1 on the Power Supply Unit High Voltage or replace the Power Supply Unit High Voltage See Fig 2 3 Sensor Layout Diagram Does jam eror occur after paper feeding Is the paper fed on the inlet sensor lever Yes Does the inlet sensor lever operate smoothly e Replace the inlet sensor lever Yes Clean the inlet sensor 1 on the Power Supply Unit High Voltage or replace the Power Supply Unit High Voltage See Fig 2 3 Sensor Layout Diagram the hopping roller assembly or paper cassette assembly No Is the hopping roller rotating Yes Yes NO NO Yes DU Yes Set the paper cassette properly Is the hopping motor rotating GEAR ASSY CLUTCH Z50 turned ON lIsacable and connector securely connected between GEAR ASSY CLUTCH and MAIN BOARD No Connect the cable firmly Is the printer recoverd Yes End No Replace the GEAR ASSY CLUTCH Z50 Yes Replace the Frame Assy Hopping Are the cable and connector between the hopping motor and the Main board connected properly see chapter 7 1 Connect each connector p
69. data is less than one page printing can be activated manually be pressing the Form Feed key after selecting the OFF LINE mode by pressing the ON LINE key Automatic activation of printing even when the received data is less than one page by selecting the Auto Eject function on the menu e To exit from this mode is turning the power OFF Drum counter reset e his function resets the drum life data when the user replaces the image drum unit e operation mode starts automatically upon completion of resetting Resource Save e Set the storage area size of resource to be stored between PCL and Postscript Receive Buffer Size e Set the receiving buffer Operator panel menu disable e This function is for enabling and disabling the operator panel menu functions Menu 1 Menu 2 Tray Select Copies and Paper Size X ADJUST e This function is used to adjust the printing start position within the range of 2 mm in 0 25 mm steps in the X direction Y ADJUST e This function is capable to adjust the printing start position within the range of 2 mm in 0 25 mm steps in the Y direction 9 Duplex agjust e hefunction which performs a correction in Y direction towards the sheet supplied from the tray in double sided printing 10 Select paper source command parameter Second tray e function which sets the parameter selecting the second tray by paper source command on PCL 11 Select paper source command parameter
70. double Tray switch D 18 920 DUET D 19 3 3 9 Bracket sub roller sem cesi Uu UU UU D 20 9 0 10 Frame side L ASSY oues en D 21 3 3 11 Frame side HR D 22 TROUBLE SOO FING 2 rE sore quce D 23 41 Precautions Prior to the Troubleshooting D 23 4 2 Preparations for the Troubleshooting D 23 4 3 Troubleshooting Method D 24 4 3 1 LCD Status D 24 4 3 2 lt Troubleshooting D 25 CONNECTION DIAGRAM 2 2 2 1 D 26 5 1 Interconnection Diagram D 26 02 one ne ePi i E 27 PARTS LIST D 28 1 OUTLINE 1 1 Functions This high capacity second third paper feeder which is located under the printer rotates the hopping motor according to the signal from the printer to supply papers to the printer automati cally The main functions are as followings e Applicable media Paper Type e Cut Sheet Size A4 A5 B5 Letter Executive Legal13 Legal14 e Special Size Paper Width 148 to 2
71. e contact plate of the transfer roller contacted with the Power Supply Unit High Voltage properly See Figure 6 6 No Make the contact plate contact with the Power Supply Unit High Voltage properly Yes Replace the transfer roller See 3 3 36 Has the trouble been removed e Yes End Is the LED head installed properly Check connector HEAD1 14 HEAD2 12p on the Main board and PC connector on the LED head e No Install the LED head properly Yes Replace the LED head Has the trouble been removed e Yes End Note After replacing the LED head set the printer in the engine mainte nance mode by turning the power on while pressing the FORM FEED and ENTER keys Set the LED head drive time Refer to Section 4 2 Yes Replace the image drum cartridge Has the trouble been removed e Yes End Note After replacing the image drum cartridge set the printer the user maintenance mode by turning the power on while pressing the MENU key Reset the drum counter Refer to User s Manual Replace the Main board or Power Supply Unit High Voltage 9 Snowy print of high density pattern Is toner low e Yes Supply toner No Is paper of the specified grade used e No Use paper of the specified grade Yes 1 the lens of the LED head dirty e Yes Clear the lens Is the LED head installed properly e No Install the LED head properly e Yes Increase the printer setting number 0 1 Refer to User s manual
72. e fan motor Power Supply Unit AC120V 230V Category LCD READY ATTENTION Trouble or status Controller message LED LED A fault occurred in the fuser See chapter 6 5 2 Thermistor open error 73 Thermistor short error operator panel 81 See chapter 6 5 2 82 optional tray 2nd tray 3rd multi feeder See chapter 6 5 2 90 Turn the power off then on Replace the Main board BOARD AAA Note When replacing the Main board install the EEPROM F1 mounted on the replaced Main board F6 IPT2 program error F7 IPT1 program error 509 38 Category LCD READY ATTENTION Trouble or status message LED LED ERROR CONTROLLER Light off Flash An error occurred in the controller error nn aaaaaaaa 1 Exception Code aaaaaaaa Error address Exception Error Turn the power off then on Reserved Replace the Main board BOARD AAA Address Error Exception Lead instruction instruction fetch Note When replacing the Main board install the EEPROM mounted on the replaced Main board Address Error Exception Store instruction Bus Error Exception Instruction Fetch Bus Error Exception Load instruction store instruction System Call Exception Breakpoint Exception Reserved Instruction Exception Coprocessor Unusable Exception Arithmetic Overflow Exception O eo CD N gt Y O gt H 6 5
73. ear 238 41 Remove two ADF bearing 42 Spring release 3 Bearing F 44 and Space hopping shaft 45 and remove the Shaft hopping 46 Guide roller 47 Lever release assy 19 and Bracket sub roller 9 Take away the Gear planet 228 69 to remove the Planet plate 0 Take away the Bracket spring sub 22 to remove the Spring sub 693 3 3 10 Frame side L assy 1 Remove the Frame side L assy See section 3 3 5 2 Remove the Plate Earth BL 1 3 Take away the Spring 2 to remove the Cassette stopper 3 4 Take away the Spring sheet 4 to remove the Pull block 5 At this time Lever link 6 can be removed simultaneously 5 Unscrew a screw 7 to remove the Link support 8 6 Remove the Roller link 9 7 Remove two Rubber foot 40 3 3 11 Frame side R assy 1 Remove the Frame side R assy See section 3 3 5 2 Remove the Plate Earth BR 1 3 Take away the Spring 2 to remove the Cassette stopper 3 4 Take away the Spring sheet 4 to remove the Pull block 5 At this time Lever link 6 can be removed simultaneously 5 Unscrew a screw 7 to remove the Link support 8 6 Remove the Roller link 9 7 Remove the Plate earth do 8 Unscrew a screw 17 to remove the Detector spring 42 9 Unscrew a screw 3 to remove the Board PXC 44 1 4 1 4 2 TROUBLESHOOTING Precautions Prior to the Troubleshooting 1 Go through the basic checking items provided in the Op
74. ed 6 Printing speed 7 Paper feed method 8 Paper delivery method 9 Resolution 10 Power input Desk top Height 13 0 331 mm Width 14 4 366 mm Depth 18 2 462 mm 19 0 kg 42 16 If Installed Duplex 21 3 kg 47 105 Dry electrophotography LED stationary head Type e Standard paper Xerox 4200 20 105 Application paper manual face up feed Label Envelope OHP paper Transparency Size e Standard sizes Letter Legal Executive Envelope e Applicable sizes Width 3 4 to 8 5 86 to 216 mm Length 5 5 to 14 140 to 355 6 mm Thickness Automatic feed 16 to 28 lbs 60 to 105 g m2 Manual feed Label OHP paper transparency Envelope 16 36 Ib First print 8 sec Continuous print 20 sheets min at duplex print 10 Warm up time 90 sec at room temperature 77 25 C and rated voltage 120 VAC Automatic feed or manual feed Face down face up 600 x 600 dots inch 600 x 1200 dots inch 120 5 5 15 230 10 11 Power consumption Peak Approx 820W Typical Operation Approx 350W Idle Approx 95W Power save mode Approx 25W 12 Temperature and humidity In operation Power off mode During Storage Unit Temperature 50 90 32 110 14 110 s 10 32 0 43 10 43 Humidity 20 80 10 90 10 90 RH Maximum wet 77 80 4 oF bulb temperature 25 26 8 C
75. ed the LCD message according to the LCD troubleshooting Status Message List according to the see 4 3 1 Troubleshooting Flow see 4 3 2 4 3 1 LCD Status Message List The listing of the statuses and problems displayed in the form of messages on the LCD is provided in Table 4 1 Table 4 1 Classification LCD Status Message Recovery method Jam error Notifies of occurrence of Check the paper in the Multi Feeder PAPER INPUT JAM jam while the paper is being Carry out the recovery printing by CHECK FEEDER fed from the Multi Feeder opening the cover removing jammed paper and closing the cover and then PAPER FEED JAM 224 CHECK FEEDER 2 to through the Troubleshooting Paper size error Notifies of incorrect size pa Check the paper in the Multi Feeder ERROR PAPER SIZE per feeding from the Multi Also check to see if there was feed CHECKFEEDER Feeder ing of multiple sheets Carry out the recovery printing by opening the cover removing paper and closing the cover and then turn ing the error display off Tray paper out Notifies of no paper state of Load the paper in the Multi Feeder PAPER OUT the Multi Feeder mmmmmmmm FEEDER mmmmmmmm Paper size in the tray being selected Interface Timeout Notifies of occurrence of Verify connection of AOLE PCB and interface timeout between square shaped connector the printer and the Multi Replace the square shaped connec Feeder tor if
76. ensor See Fig 2 3 Sensor Layout Diagram Is the printer recovered No Replace the Power Supply Unit High Voltage YES END Has the paper reached the paper sensor lever Is the Drum motor rotating No Goto on the next page Yes 15 cluch for register roller 44 in Figure 8 2 turned on NO Is a cable from the clutch connected to CLR connector on the main board Yes Replace the Clutch Is the printer recovered Replace the Main board YES END Go to on the next page Go to on the next page From on the preceding page From on the preceding page Yes Is the image drum set properly e No Set the image drum properly Yes Incase of paper feed from the front feeder check the hopping roller of the front feeder assembly In case of paper feed from the tray check the hopping roller assembly and the tray Has the paper reached the outlet sensor lever Yes Does the outlet sensor lever operate smoothly No Replace the outlet sensor lever Yes Clean the outlet sensor on the Power Supply Unit AC120V or 230V See Fig 2 3 Sensor Layout Diagram Is the printer recovered No Replace the Power Supply Unit AC120V 230 YES END Is the drum motor rotating Ols there any defective gear in the motor bracket assembly e Yes Replace the defective gear No the connections for Motor connector on the Main board between drum motor p
77. er YES Clean the inlet sensor 1 on the power supply unit High Voltage or replace the power supply unit High Voltage See Fig 2 3 Sensor Layout Diagram NO Replace the hopping roller shaft assy or paper cassette Is the hopping roller shaft rotating YES Set the paper properly NO NO 15 the stepping motor turning e YES Replace the one way clutch gear on the hopping roller shaft assembly NO 15 connector cable being connected properly Connect the connector cable properly When paper is fed in does the paper input jam occur Is it normal YES Check the coil resistance approx 6 7 2 of the stepping motor NO Replace the stepping motor e YES Replace the Board BBB 5 CONNECTION DIAGRAM 5 1 Interconnection Diagram to PRINTER UNIT 2nd TRAY 2nd tray 3rd BOARD PXC tray auto setting switch zo Oz LL IG Z NI N N N Z o Oj ooo o N o mo aj SIZE 6P BOARD BBB O THR TWO IN U U U U U U U Z alg lz m lt lt o lie to 3rd TRAY Z6 Paper near end sensor Paper end sensor Motor driver 1 4 god 6 PARTS LIST I 53 26 Table 6 1 High Capacity Second Third Paper Feeder 1 2 1000 1 je 40488701 Guidecas
78. er Magnetized Digital multimeter Handy cleaner LED Head cleaner Cleans LED head P N 4PB4083 2248P 1 Disconnector for Disconnect Jack in connector Jack in connector P N 4PP4076 5395P 1 For removing Holder TR Eject ROLLER Transfer P N 40596701 Parts Layout 3 2 Plate Shield Cover Side l F Frame OP panel Assy ROLLER Transfer Face up stacker Assy Cover Rear IS 2 NR UNA 226 y Cover Side R AN Assy L Cover Side Base Unit CASE Assy Casse Figure 3 1 Feed Unit FRONT Toner Cartridge Type 7 48 otor Main Dy E i YS N sy SN ud NE E ak e LAUS ROLLER Assy Feed a EE _ amp SUN Ner 2 90 ANY y ADA V FRAME Main DC Fan Motor Figure 3 2 Power Supply Unit 120V 230V Power Supply Unit High Voltage 8 PLATE Bottom Figure 3 3 How to Change Parts 3 3 This section explains how to change parts and assemblies appearing in the disassembly diagram below 06766 u enesseo Assy 626 1 5 eipno 9 pee 1908 pue Jaded 826 9 pue 7 1666 samod 9066 JOA 108095 2 97 194
79. erator Guide 2 Obtain detailed information concerning the problem from the user 3 Go through the checking in the conditions similar to that in which the problem occurred Preparations for the Troubleshooting 1 Display on the Operator panel The status of the problem is displayed on the LCD Liquid Crystal Display on the Operator panel Go through the appropriate troubleshooting procedures according to the messages displayed on the LCD 4 3 4 3 1 Troubleshooting Method When a problem occurs go through the troubleshooting according to the following procedure Problem occurs Problem displayed by Troubleshooting Carry out detailed the LCD message according to the LCD troubleshooting Status Message List according to the see 4 3 1 Troubleshooting Flow see 4 3 2 LCD Status Message List The listing of the statuses and problems displayed in the form of messages on the LCD is provided in Table 4 1 Table 4 1 Classification LCD Status Message Recovery method Jam error Notifies of occurrence of Check the paper in the Second third PAPER INPUT JAM jam while the paper is being Paper Feeder Carry out the recovery CHECK TRAY fed from the Second third printing by opening the cover removing Paper Feeder jammed paper and closing the cover and then turning the error display off PAPER FEED EAM When the problem occurs frequently to CHECK TRAY through the Troubleshooting Notifies of incorrect size
80. etteL 0031 1 1 3 6 For Maintenance 4 4122 1217 001 2 2 6 12 94 40349102 1 1 3 6 4PP4076 5358P001 Link support 2 2 6 12 40607201 2 0 6 12 9 4 4076 5359 001 Cassettestopper 2 2 6 12 4 4043 4526 001 2 0 6 12 J 4 4016 1960 002 4 4 24 3PP4076 5714PO01 GuideralplateL 1 1 3 6 40349701 2 2 6 12 9 40346801 1 1 3 6 X 40488801 Guide cassette R 1 1 3 6 For Maintenance 40349101 Leverlink Cauking 1 1 3 6 3 4076 5715 001 GuiderailplaeR 1 1 3 6 4PP4076 5360PO0 Detector spring 1 1 3 6 17 40368303 JBoadPXC 1 1 6 f 18 40433001 pPlaeeathR 11 1 6 Jf 19 40347001 Coverfrotasy 1 1 3 6 f 20 40366501 1171 3 6 f 21 40247001 11 1 3 6 f 22 40348301 3 6 f 23 40422101 1 1 3 6 f 24 40444301 lIrayswithasy 1 6 12 25 2201000P0141 Connector IMSA 9714N 14B 1 0 3 6 ToPrinteror 2nd Tray 26 2201000P0140 Connector IMSA 9714N 14A 1 0 3 6 Tray 27
81. g At the same time planetary gear D shifts in the direction of arrow F and the sub roller gear and another sub roller on the same shaft won t rotate In the third paper feeder when the length of paper is legal 13 inch or more and if the rotating direction is arrow A papers will be carried to the defined amount without being impinged to the regist roller and then the rotating direction of the hopping roller will be changed to arrow B When the rotating direction of the hopping roller A arrow direction the motion is same as 1 When B arrow direction the motion will be same as 2 until Roller K begin to rotate The planetary gear M will shiftin the direction of arrow L by way ofthe gear O which begin to rotate at the same time when the roller K does And gear N rotates resulting in rotating the gear J and roller K on the same shaft and impingeing papers to the regist roller within the printer At this time as the gear O and gear P engaged by the planetary gear G on the same shaft on which the gear J and roller K are placed includes an one way clutch gear the planetary gear G won t rotate Impinged papers are afterwards fed by the control of printer s inside Paper Gear O Engaging to gear P or planetary gear G Gear J for timing belt Roller K Roller C Hopping roller gear E Planetary gear D Sub roller 2nd paper feeder Hopping motor Gear N for timing belt Gear J Roller C Roller K
82. g the FORM FEED key and ENTER key Function There are 19 functions as follows e Head type setting e Head drive time setting e Head drive time setting at Auto head type e Head strobe time at 600 x 1200 e Printing start position setting e Drum counter total display e Drum count display e Setting of standard paper feed length e Setting of front feeder paper feed length e Setting of second tray paper feed length e Selection of second tray feeder download table e Setting of third tray paper feed length e Selection of third tray feed download table e Setting of Multi purpose feeder paper feed length e Selection of Multi purpose feeder download table e Setting of duplex feed length e Fuser count indication e Fuser count reset e Engine reset 4 1 1 User maintenance mode To enter the user maintenance mode turn the power supply ON while pressing the Menu key This mode uses the menu for function selection The user maintenance mode provides the following functions Menu reset e settings for Menu level 1 are reset to the factory default values The menus for all executable emulations including options are reset to the factory default values e operation mode starts automatically upon completion of resetting Hex dump The data received from the host is dumped in hexadecimal notation to the printer e Printing is activated automatically when the received data exceeds one page If the received
83. he Write Sensor Hopping Roller Hopping Motor Front Feeder Gear C one way clutch build in Pressure Roller Front Feeder Plate INS Ss Inlet Sensor V dm Paper Ee EU EON Ee x ae 7 Regist Roller A Paper VA Si P Hopping Roller 1st Hopping Gear One way Gear build in EN Sub Roller home position Helease Lever P vd Micro SW Front Plate 2 18 N Pressure Roller b Gear E E Regist Roller Inlet Sensor Clutch Regist WM pM Wes m 5 i EB d s VT ANY eC I YT EO 9 Cluich Feed j Gear D Main Motor N Align Roller 2 Feeding After the end of hopping the pulse motor dedicated for driving the registration roller rotates to drive the registration roller The driven registration roller advances the paper until it comes out of the registration roller When leading edge of the paper causes the paper sensor to turn on the printing is started synchronously Although Gear D is always rotating due to an all time rotation of the main motor in direction the regist roller would not rotate because the clutch regist is turned off After the completion of hopping turn on the clutch regist to drive the regist roller The regist roller would drive a paper until the paper has passed 3 Charging Charging is effected b
84. he connection cord properly the Duplex In sensor lever LEVER Sensor D IN and SPRING Sensor D IN Remove the paper Duplex FEED JAM 2 Has a paper reached the Duplex Rear sensor Yes Is the connection cord between the clutch and the connected properly Yes Replace the GEAR Assy OK Yes end Replace the Board LEX NO Connect the connection cord properly Is the Duplex Rear sensor operating normally Yes Replace the Board LEX Replace the Duplex Rear sensor lever LEVER Sensor F R and SPRING Sensor F R Duplex FEED JAM 3 Has a paper reached the Duplex Front sensor No Is the connection cord between the clutch and the Board LEX properly Yes Replace the GEAR Assy OK Yes end No Replace the Board LEX NO Connect the connection cord properly Yes Is the Duplex Front sensor lever operating normally Yes Is the connection cord between the Duplex Front sensor and the Board LEX connected properly Yes Does the connection cord have a break Yes the Duplex Front sensor FX50 Photo Sensor OK Yes end No Replace the Board LEX NO Connect the connection cord properly Replace the Duplex Front sensor lever LEVER Sensor F R and SPRING Sensor F R CONNECTION DIAGRAM 5 Interconnection Diagram 5 1 Jejuug oi MIO SNSLNO GND GND AS GND GND A8 gt m 5 2 212 or 0 77 dct X3 ld
85. he magnet on the stirring bar The stirring bar rotates through the link on the protrusion in the stirring gear F N Protrusion Stirring Bar Stirring Gear Operation Toner Low is detected by monitoring the time interval of the encounter of the magnet set on the sensor lever and the magnet on the stirring bar Stirring Gear Section Stirring Bar The stirring bar rotates due to the interlocking with the stirring gear Even when the magnet on the stirring bar reaches the maximum height since the other side is being dipped in the toner the stirring bar is pushed by the stirring gear Sensor Lever Toner Sensor Stirring Bar When the stirring bar reaches the maximum height since there is no resistance provided by the toner on the other side it falls to the minimum height due to its own weight Be cause of this the time interval during which it is in encounter with the magnet of the sensor lever becomes long By monitoring this time interval toner low can be detected Sensor Lever TONER FULL state TNRSNS lt 2 727 4 t1 2 727 SEC TONER LOW state TNRSNS d pP 11 Ff t1 gt 2 727 4 2 727 SEC e When the toner low state is detected 2 times consecutively Toner Low is established e When the toner full state is detected 2 times consecutively Toner Low is cancelled e Whenthere is no change with the toner sensor for 2 cycles 2 727 sec x 2 or more the
86. he paper in the printer Open the cover then close it to perform recovery printing and the error display is released Remove all of the paper in the printer Open the cover then close it to perform recovery printing and the error display is released Remove all of the paper in the printer Open the cover then close it to perform recovery printing and the error display is released Remove all of the paper in the printer Open the cover then close it to perform recovery printing and the error display is released Remove all of the paper in the printer Open the cover then close it to perform recovery printing and the error display is released Check the paper in the cassette Open the cover then close It to perform recovery printing and the error display is released lf the error ocuurs frequently see chapter 6 5 2 Category LCD status message Trouble or status Daily status ATTENTION ATTENTION READY ATTENTION ATTENTION PAPER FEED JAM CHECK LECCE PAPER EXIT JAM REMOVE THE PAPER OKI HSP I F CARD RESETTING ERROR HOST I F ORI HSE XX COVER OPEN EEPROM RESETTING Informs that a jam occurs during paper running after exiting from the Open the cover remove the paper then close the cover tray When the cover is closed recovery printing is performed and the error display is released If the error occurs frequently see chapter 6 5 2 Informs that a jam occurs after eject
87. ine voltage 8 V 5232 Line voltage 3 8V LED HEAD supply voltage 2 High voltage power supply circuit This circuit generates the following voltages necessary for electro photographic processing from 30 V according to the control sequence from the control board When cover open state is detected 30 V supply is automatically interrupted to stop the supply of all the high voltage outputs Output Use Remarks 5 450 V Voltage applied to toner supply roller TR 4 KV 1 3 kV Voltage applied to transfer roller Variable Only CB 450 V 1350V Voltage applied to clearimng roller 3 Photosensor The photosensor mounted on this power supply unit Supervises the paper running state during printing Figure 2 3 shows the sensor layout diagram Paper running direction 4 Roller exit Roller feeder c m Outlet sensor 1 Roller Heat Roller transfer Paper sensor Toner sensor LT Roller regist Inlet sensor 1 Inlet sensor 2 Feed roller m Figure 2 3 Sensor Function Sensing state Inlet sensor 1 Detects the leading part of the paper and gives the supervision ON Paper exists timing for switching from hopping operation to feeding OFF No paper exists tion Supervises the paper running state and the paper size accord ing to the paper reach time and running time Inlet sensor 2 Detects the form width ON Aor larger OFF S
88. ing The printing and correction data obtained from the CPU through four signal lines are sent to the LED array In OKIPAGE 20 OKIPAGE 20n the correction control of LED head is excuted direction by CPU The procedure is as follows 1 LEDheadissettothe correction control read mode correction data stored in EEPROM within the correction control LSI are read by CPU and stored temporarily in the memory 2 Next LED head is set to the correction control direct mode and the correction data stored temporarily in the memory is transferred directly to the LED driver pejqeue dd ip MM __ 195 peas peal 5 0 8 0 8 59019 8 8 599010 8 L gy o oKo Read of correction data uiu 50060 1 r 8415 15 415 8415 2 26 Transfer of correction data to head driver correction data 2 pejqeue 123410 198 123ulQ AE Dunes IPON 5000 101 101294107 011291107 748815 VIVO 01991109 uon9el0 u01 991109 0 01 uli L 9019 uusuz gt 2f The LED driver corrects the LED illumination by controlling the LED current The LED il
89. ing a paper Open the cover and remove the paper inside Open the cover remove the paper then close the cover When the cover is closed recovery printing is performed and the error display is released If the error occurs frequently see chapter 6 5 2 Informs that OKI HSP I F card is under reset It be automatically restored by stopping the reset Warning Informs that an error significant malfunction occurs The operation is continued by pressing Recover switch xx 10 timeout 20 Initial error occurs 10 seconds later since powering on 21 Inthe event that it takes 3 seconds or more for shifting to the operating mode or a command for operating mode is received during power on mode Communication error between HSP host Press REWCOVER key If the error occurs frequently check HSP card Informs that the upper cover is open Close the cover to release toe error display If the display does not change after the comer is closed check for correct operation of cover open switch and lever Replace the Power Supply Unit High Voltage Indicates that an error occurs from the results of checking ID No of EEPROM The operation is continued by resetting EEPROM to factory default after a few second indication It displays the message for a few seconds It reset the EEPROM to the factory default state to continue operation When the program ROM is updated and the EEPROM is replaced with new one the menu factory
90. ing data e Menu data e Various counter data page counter drum counter fuser counter etc e Adjustment parameters LED head drive time print start position etc 5 LSI LZOFF22 Built in device Function Serial port Control of serial interface between controller and 2nd tray 3rd tray Multi purpose feeder Control of serial interface between controller and Duplex unit Motor driver controller Control of Hopping motor I O port Inputting of various sensor signals Outputting of various control signals 6 Host interface This printer has the following interfaces to the host e Centronics bidirectional parallel interface RS232C interface e OKI interface Option The single effective interface or the automatic interface select mode can be selected using the menu If the busy state of the printer continues for a long time period the buffer near full control releases the busy status at constant intervals even if the host side is busy so not to cause the interface time out at the host side Bed a c Centronics bidirectional parallel interface This is an interface conforming to IEEE 1284 and provides either of unidirectional and bidirectional communications according to each of the following communication modes e Compatibility mode Unidirectional communications from the host to the printer e Nibble mode This mode transmits 4 bit wide data from the printer to the host In this mode each 1 b
91. injury to human body Follow the instructions on warning labels during maintenance CAUTION HOT ATTENTION CHAUD VORSICHT HEI 8 ATENCION ALTA TEMPERATURA ATENCAO ALTA TEMPERATURA CAUTION HOT Do not touch the inner roller Ber hren Sie nicht die innere Walzel ATTENTION CHAUD ATENCION ALTA TEMPERATURA Ne pas toucher le rouleau interne No toque el rodillo interior ATEN O ALTA TEMPERATURA BOR X Non toccare il rullo interno CORNO F FEMNEV TCE 2 OPERATION DESCRIPTION OPERATION DESCRIPTION OKIPAGE20 OKIPAGE20n consists of a main control board a power supply unit 120V 230V a power supply unit high voltage an operator panel and an electro photographic process mechanism The control board receives data through a host decodes and edits the data and stores the edited data in a memory After completing edition of one page of data it references the font memory and generates bit data on the same memory Atthe same time it transfers the bit image data to an LED head in units of one dot line The electro photographic process mechanism prints data on paper The operator panel is used for operations and status display Fig 2 1 shows an OKIPAGE20 OKIPAGE20n block diagram MAIN BOARD BOARD AAA FLASH ROM Module DUPLEX unit MULTI feeder Paper end sensor E E Zz 2 Extension DRAM Paper near end sensor Module Tray size BOARD PXC sensor boar
92. is formed 3 Developing and toner recovery When the negatively charged toner is brought into contact with the image drum itis attracted to the electrostatic latent image by static electricity making the image visible At the same time the residual toner on the image drum is attracted to the developing roller by static electricity 4 Transfer When paper is placed over the image drum surface and a positive charge opposite in polarity to the toner is applied to the reverse side of the paper from the transfer roller the toner is attracted by the positive charge and is transferred to the paper As aresult the toner image formed on the image drum is transferred to the paper 5 Temporary cleaning Residual toner that remains on the image drum without being transferred is made uniform by the cleaning roller and is temporarily attracted to the cleaning roller by static electricity 6 Fusing The toner image transferred to the paper is fused under heat and pressure Figure 2 6 shows an electro photographc process timing chart ay jo uongo JO Jaded yed Buiddoy jede g poo ede uononpoud 2101 2101 jddns 1 Y jaded jaded Josues 19 u Josues Jaded Jopoo 101204 Jouo 910 seig Ajddns J MOd
93. ltage 3 3 28 Lever Paper 8 Lever Paper near end 1 Turn the AC power switch off Unplug the AC power cord from the outlet 2 Remove the frame main See 3 3 12 7 3 Remove screw 1 and then remove the PLATE Base 4 Remove two Spacer Cord KGPS 5RF and then remove FILM Insulation b Remove four screws 5 and then remove the FRAME ASS Hopping Q 6 Remove the GEAR Z58 Q and GEAR Z42 Q At this time the ADF Bearing can also be detached simultaneously 7 Remove the GEAR Z38 ADF Bearing ROLLER Guide and SHAFT Hopping Bracket Sub roller 69 At this time the Kock Pin can also be detached simultaneously 8 Remove two screws 7 and then remove the SPRING Release and then remove the LEVER Sub roller PLATE Hopping 9 Remove the GEAR Planet Z28 B Plate Planet 6 BRACKET Spring Sub and SPRING Sub ROLLER 10 Press the clamp part of Lever Paper end 68 and Lever Paper near end Remove the Lever Paper end and Lever Paper near end by pushing it upward from the FRAME Hopping 69 11 Remove the Connection Cord Wire and TR 23 11 14 R CORE 63 together 12 Remove two Photo Sensor 3 3 29 Guide Turn the AC power switch off Unplug the AC power cord from the outlet Remove Frame Main See 3 3 12 7 Remove PLATE Base and FRAME Assy Hopping See 3 3 28 5 Unscrew two screw 1 and then remove Guid Assy Cassette L
94. lumination can be set in 16 steps with 7 steps in the direction of illumination increase in relation to the standard value and 8 steps in the direction of decrease For this reason the LED correction data 5 a 4 bit data for each dot The relationship between the LED correction data and LED current correction steps with the LED driver used in an LED head is shown below LED Correction Data Corretion Data Correction Correction o o t 091110111 f o 1 1 0 12 J correction ny _0_ 90 1 increasing 1 o o 8 oq rq i oo trj o o oj t o o o o 11011110 o3 1 0 1 o Correction by Pt 4 0 decreasing _1_ 0 1 iumnaton pt 0 1 0 tm _1 og op y The printing operation timing chart is shown below Normal Mode Printing Timing Chart nnnuunnmvinL patas 0 STRE STRB2 N m STRB3 N eo 6 6 STRB4 N First line printing data sent second line printing data sent First line printing The printing operation is carried out in normal mode Under ordinary circumstances such as when the power is turned on or when LOAD signal level is low the normal mode is enabled The printing operation is carried out in the foll
95. m counter Refer to User s Manual Replace the Main board or Power Supply Unit High Voltage Black paper is output Is the LED head connected properly Check connector HEAD1 14P HEAD2 12p on the Main board and PC connector on the LED head e No Connect the LED head properly or replace the head cable Yes Is the contact of the image drum cartridge contacted with the ground contact properly See Figure 6 5 D e No Check the ground contact of the image drum cartridge Yes Check the connectors HEAD1 14 and HEAD 12 No Replace the LED head Yes Replace the connector Has the trouble been removed e Yes End Note After replacing the LED head set the printer in the engine mainte nance mode by turning the power on while pressing the FORM FEED and ENTER keys Set the LED head drive time Refer to Section 4 2 Replace the Main board or Power Supply Unit High Voltage Black belts or stripes in the vertical direction Replace the image drum cartridge Has the trouble been removed e Yes End Note After replacing the image drum cartridge set the printer the user maintenance mode by turning the power on while pressing the MENU key and reset the drum counter Refer to User s Manual the LED head Has the trouble been removed e Yes End Note After replacing the LED head set the printer in the engine mainte nance mode by burning the power on while pressing the FORM FEED
96. made by changing a parameter value set in EEPROM on the controller PCB A parameter is able to set with the key operation on the operator panel This printer has three kinds of the maintenance mode it is required to select one of the maintenance mode necessary when replacing a part Maintenance Modes And Functions o User maintenance mode To enter the user maintenance mode turn on the POWER switch while pressing the MENU key Function There are 13 functions as follows e Menu reset e Y adjust e Hex dump e Duplex Adjust e Drum counter reset e Select paper source command parameter e Resource Save Second Third Front Tray e Receive Buffer Size e Page placement e Operator panel menu disable e Setting e X adjust e Cleaning cycle e System maintenance mode Note This mode is used only by service persons and it should not be released to the end users To enter the system maintenance mode turn on the POWER switch while pressing the RECOVER key Function There are 8 functions as follows e Page count display e Page count printing enable disable e Rolling ASCII continus prinitng e RS232C LOOP TEST e EEPROM reset e ERROR recovery e ERROR count display e ERROR count reset e SIDM enable disable Engine maintenance mode Note This mode is used only by service persons and it should not be released to the end users To enter the engine maintenance mode turn on the POWER switch while pressin
97. maller than A4 Paper sensor Detects the leading part of the paper ON Paper exists Supervises the paper running state OFF No paper exists Outlet sensor Supervises the paper feed and size according to the time of ON Paper exists arrival to the sensor and the time of passage of paper OFF No paper exists Toner low sensor Detects the lack of toner ON long Toner low exists OFF short Toner low exists 2 3 Electro photographic Process 2 3 1 Electro photographic process mechanism This mechanism prints image data from the control board on the paper by electro photographic process The Figure 2 4 shows the layout of the electro photographic process mechanism Image Drum Unit LED HEAD Heat Assy Hopping Motor Face Up stacker 1st Hopping Roller Motor Main Sub Roller Figure 2 4 Image drum unit Theimage drum unit consists of a sensitive drum a charger and a developer Theunitforms a toner image on the sensitive drum using a electrostatic latent image formed by the LED head Hopping motor This motor is a pulse motor of 48 steps rotation that is two phase excited by the signal from the control board It drives the hopping roller of the first tray and the front feed roller via two one way clutches according to the direction of rotation Motor Main This motor is a pulse motor of 72 steps rotation that is two phase excited by the signal from the control board and is the main motor of this me
98. mbly must be carried out according to the prescribed procedures Parts may be damaged if such procedures are not followed omall parts such as screws and collars can easily be lost therefore these parts should be temporarily fixed in the original location When handling printed circuit boards do not use any glove which may generate static electricity Do not place the printed circuit boards directly on the equipment or floor Service Tools Table 3 1 shows the tools required for the replacement of printed circuit boards and units in the field Table 3 1 Service Tools Service Tools No 1 100 Philips screwdriver 2 4 mm screws Digital multimeter OKI P N 4PP4076 5395P1 3 2 Parts Layout This section describes the layout of the main components Hopping cover Upper cover Hopping motor e Control board AOLE PCB Sensor lever Separator lt gt Roller B 3 3 Parts Replacement Methods This section describes the parts replacement methods for the components listed in the disassembly order diagram below Multi Feeder Separator 3 3 1 AOLE PCB 3 3 2 Square shaped connector 3 3 3 Hopping motor 3 3 4 Planet gear 3 3 5 Roller B 3 3 6 Roller A 3 3 7 Mini pitch belt amp Feed roller 3 3 8 3 39 1 Separator 1 Turn the printer power off and remove the Multi Feeder 2 Disengage the link and hopper cover 3 Remove two screws 1 disengage two locks of the upper
99. move Photo Sensor 3 om 5 M 2 X Film Pinch R NV Note It should not become a state such as of dotted line from the results of installation p Film Pinch R SOLENOID Assy 3 3 4 Release the lock to remove Two LEVER Sensor F R 1 and two SPRING Sensor F R Unplug the Connection Code Wire 3 and remove Photo Sensor 4 Take away the SPRING SL 5 and two screws 6 to remove SOLENOID Assy 7 Remove the Frame Main DUP See section 3 3 2 1 2 3 4 16 3 3 5 Motor Remove the Frame Main DUP See section 3 3 2 Unscrew two screws 1 to remove PLATE Earth F R 2 Unscrew three screws 3 to remove PLATE Earth F R 2 4 Disengage the latch to remove the Bearing L 5 24058 6 Bearing Mand ROLLER Feed RV 8 At this time Knock Pin 9 can be removed simultaneously Unscrew the screw 9 to remove the PLATE Earth BTM 4 Disengage the latch and remove two PULLEY MX25 2 Mini Pitch Belt 43 and two Bushes 44 Disengage the latch to remove the Bearing Feed 45 and ROLLER Feed F 46 Remove the E Ring 47 and Bush 49 Unscrew two screws 19 to remove the GEAR Assy 69 At this time the 24056 0 Knock Pin 02 and ROLLER Feed R 23 can be removed 10 Unscrew two screws 64 to remove Motor 65 4 1 4 2 TROUBLESHOOTING Precautions Prior to the Troubleshooting
100. n the Toner Sensor Alarm is activated e toner sensor is not monitored while the drum motor is in halt 2 7 2 0 2 9 Stacker full Detection The sensor interlocked with the lever at the paper outlet to the stacker detects a stacker full state about 250 sheets and stops printing of the ensuing pages Page Size Detection The four tab pieces are driven according to the setting position of the paper guide through the cam interlocked with the paper guide of the paper cassette When the paper cassette is inserted into the printer the state of the tab pieces is detected by the microswitch to recognize the paper size State of Microswitches Paper size 5 1 SW2 SW3 SW4 PostScript ROM module BOARD MSM or BOARD FSL PostScript ROM module is mounted on SIMM socket FSIMM1 The PostScript ROM module consists of program font ROM s an EEPROM 1 Program font ROM s The program font ROM s store the PostScript Level Il program and its fonts BOARD MSM consists of Mask ROM BOARD FSL consists Flash ROM Mask ROM and Flash ROM is used as the program font ROM s 2 EEPROM The EEPROM has a 4 kbit capacity and stores the PostScript s menu settings 3 Emulation PostScript Level 2 3 PARTS REPLACEMENT PARTS REPLACEMENT The section explains the procedures for replacement of parts assemblies and units in the field Only the removal procedures are explained here Reverse the procedure for the installation 3 1
101. n the direction of the arrow by lifting the right side first Note As the heat assy becomes high temperature soon after the power is turned off start the work after it cools off sufficiently Carry out a reset of the counter after the replacement See Section 4 2 EZ 24 ja 4 vw V 2 ANN C 1j 4 x 24 7 3 3 15 Roller feed C 1 Remove the guide assy eject See 3 3 13 But roller transfer feeder unit front plate FG F have not be removed 2 Remove the gear roller C and bush warp a part of the plate FG BK 3 Take off the carrier bearing and remove the roller feed G in the direction of the arrow Note Be careful not to deform a part of the plate FG BK 3 ex 9 SY STM A WV 3 3 16 Roller Assy BK 1 Remove the heat Assy See 3 3 14 2 Remove the lever back up release See 3 3 12 8 3 Unlock the engagement with the plate FG 1 and lift out the roller heat assy v o 3 3 17 Roller Assy Feed 1 Remove the feeder unit front See 3 3 10 2 Remove the roller assy feed by unlocking a latch 3 3 18 LED Head 1 Remove the stacker assy See 3 3 6 2 Unplug the PC connector 2 and 2 LED cables from the LED head 3 Open the hooks of the cover stacker 1 in the direction of the arrow and remove the
102. na AS IE moms HOSN3S calles m HOLOIN diHd elo _ L m Tr aavog HOSN3S 9 INO HOLNTO 8 p GION310S A8 A8 C 24 22 PCB Layout LEX PCB 12 15 53959 SN3SNI s HOLNTO Rear Sensor Motor driver PARTS LIST 6 7 N 2 N LO lt lt S 8 A g LEZ O E gt eo Table 6 1 Duplex Unit 1000 1 40658401 COVERUppe DUP Afix 1 1 3 6 2 40339401 ROLLER Pinch 6 6 18 36 6 40393301 lt 2 2 6 72 f 7 40457701 JBRACKETPinhR 12 2 6 72 f 8 4045781 12 2 6 72 f 22 9 4044380 LEVERLokAs 2 2 6 12 f 202 10 4054150 SPRING Lock frame 1 1 3 6 f 20 11 40541500 SPRING Lock frame 1 1 3 6 f 2 02 12 40338701 JLEVERSensc DIN 11 1 3 6 202 13 4039301 7 SPRING Sensor D IN 1 1 3 6 14 4YB4120 1137P001 FX50 PhotoSensor 2 2 6 12 15 4059800 Core Assy DUPLEX 1 1 3 6 202 16 2201000P0140 1 9714 14 1 1 3 6 42 17 40375201
103. nction sets head drive time when HEADTYPE AUTO is selected Head strobe time at 600 x 1200 e This function sets head strobe time at 600 x 1200 dpi Printing start position setting e Sets the printing start position Drum count total display e Displays on the LCD the total number of drum revolutions in the unit counted at the engine Drum count display e Displays on the LCD the total number of EP drum revolutions counted at the engine Setting of standard tray paper feed length e This function sets the paper feed length of standard tray paper Setting of front feeder paper feed length This function sets the paper feed length of the front feeder 10 Setting of High Capacity Second Paper Feeder paper feed length This function sets the paper feed length of the High Capacity Second Paper Feeder 11 Selection of High Capacity Second Paper Feeder download table This function selects the download table for the High Capacity Second Paper Feeder 12 Setting of High Capacity Third Paper Feeder paper feed length e This function sets the paper feed length of the High capacity Third paper feeder 13 e Selection of High Capacity Third paper feeder download table This function selects the download table for the High capacity third paper feeder 14 Setting of Multi Feeder paper feed length This function sets the paper feed length of the Multi Feeder 15 Selection of Multi Feeder download t
104. nector on the Main board For the measuring points see Fig 6 1 Pin 23 8V Pin 24 Pins 19 20 30V Pins 9 12 17 18 0V Pins 13 14 5V Measure the resistance between L and N pins of the AC inlet using a multimeter Is there continuity between L and pins normal resis tance 554 For measuring points see Fig 6 2 No Replace the fuse F2 or the Power Supply Unit AC120V No Remove the AC cable Set the POW switch to the ON position 230 Yes Are POWER connector of the Main board and Connection cord Wire 26 pin connected properly Are connection cord wire and CN3 connector of the Power Supply Unit AC120V or 230V connected properly e No Connect the connectors properly Yes Are the following voltages applied to CN3 connector of the Power Supply Unit AC120V or 230V For measuring points see Fig 6 3 Pins 19 20 30V Pins 9 12 17 18 OV Pin 23 Pins 13 14 5V Pin 24V e Replace the Power Supply Unit AC120V or 230V Yes Replace the Connection cord wire 26 pin Is the printer recovered e No Replace the Main board YES END From 1 2 on the preceding page 1 Yes Is the operator panel connected to the Main board properly No Connect the operator panel properly Yes Is the connecting cord defective e Yes Replace the connecting cord No Replace the operator panel assembly Is the printer recovered No Replace the Main board YES END
105. o o O O O O O O O O O d O O O O O O O O O O O 000000f000 00000000000 12 ooo SIZE 2 1 5 6 IV CoV SIdNW STKFULL 1 3 99 28 88008 A LL 000000000000090090 qq LZ SGb EERO bo P 0000000000000000 ass ooo LL 000000000000000 FSIMM1 SIMM1 SIMM2 6151 HDD INOHJ dO13AN3 HOLOW HIO 40439501 40439601 40439701 40439801 TA1 3 pin 1 pin Note short plug TA1 setting setting 1pin 2pin In case of MASK ROM 2 N Z Yl 000000000000 GZ O 52052220224 966654 1399 12 o lo o o 9 ojo ojo o oS o Je o olo o 2 ojo ojo o 5 o 2 Po o mO Njo 9 o ojo ojo ojo o Ss olo olo o Clo 4 LIP o
106. o 30 degree home position Rotating the Hopping Motor in direction b CCW drives the Front Hopping Shaft and then attached the FF Cam and the Front Hopping Roller are driven During the FF Cam rotated approx 60 degree the Release Lever was pushed and the Front Feeder Plate lifts up then the Front Hopping Roller picks up a sheet of paper Atthe FF Cam rotated approx 180 degree the Front Feeder Plate is pushed down and locked by the Release Lever again At the FF Cam rotated approx 275 degree the paper fed until the Inlet Sensor turns off Aligning After turning on the Inlet Sensor the paper fed by a predetermined length and choked up to the wedge space formed by the Regist Roller and the Pressure Roller so that to align the skew of paper During the paper fed from the Front Feeder Plate the one way clutch of 1st Hopping Roller is idled and not to drive the 1st Hopping Roller and the Sub Roller Feeding After aligned the paper the Hopping Motorturned off and stop hopping Then Clutch Regist turned on and the Regist Roller start to feed the paper After the paper fed the Front Hopping Roller drives the Front Hopping Shaft and attached the FF Cam with small idle torque of build in one way clutch and when comes into the Release Lever the one way clutch is slipped and the FF Camis stopped at the upper position home position The Front Hopping Roller continuously idled up to the paper away Start printing after the paper turns off t
107. omall parts such as screws and collars can easily be lost therefore these parts should be temporarily fixed in the original location When handling printed circuit boards do not use any glove which may generate static electricity Do not place the printed circuit boards directly on the equipment or floor Service Tools Table 3 1 shows the tools required for the replacement of printed circuit boards and units in the field Table 3 1 Service Tools service Tools Place of use Remarks STS 1 100 Philips screwdriver 2 2 5 mm screws No 2 100 Philips screwdriver 3 5 mm screws No 3 100 screwdriver No 5 200 screwdriver un P onnector remover 1 P N 4PP4076 5395P1 1 1 mE EN mE Digital multimeter mE m mu mu Parts Layout 3 2 This section describes the layout of the main components 2 h oller assy feed 33 Parts Replacement Methods This section describes the parts replacement methods for the components listed in the disassembly order diagram below High Capacity Second ThirdPaper Feeder Roller assy hopping Roller assy feed 3 3 1 Cover front assy 3 3 2 Board BBB 3 3 3 Lever paper end Lever paper near end 3 3 4 Motor 3 3 5 Connector IMSA 9714N 14B Connector IMSA 9714N 14A 3 3 6 Frange Pulley Pulley Idle Mini Pitch belt Plate Earth shaft Gear double Tray
108. or IMSA 9714N 14A Photo sensor 11 3 3 Parts Replacement Methods This section describes the parts replacement methods for the components listed in the disassembly order diagram below Duplex Unit Board LEX 3 3 1 Connector 3 3 2 Photo Sensorr 3 3 3 Solenoid Assy 3 3 4 Motor 3 3 5 3 3 1 Board LEX 1 Remove two LEVER Lock DUP 1 by rotating them in the arrow direction 2 Unscrews five screws 2 to remove the bracket 3 3 Unlatch all the nails and unplug all the connectors 4 to remove the Board LEX 5 Note When installing the Board LEX install it positioning earth plate over the PCB Y 3 3 2 Connector IMSA 9714N 14A 2 Take away two SPRING Support 2 to remove FRAME MAIN DUP 3 Remove the FRAME MAIN DUP by lifting in up fron side 3 Unscrew two screws 4 to unplug the Connector IMSA 9714N 14A 5 1 Remove two LEVER Release DUP 14 3 3 3 Photo Sensor 1 Remove the Frame Main DUP see section 3 3 2 2 Release the lock to remove two SPRING Lock frame 0 and two LEVER Lock Assy 2 3 Pull outfour SHAFT Pinch 3 and remove four ROLLER Pinch 4 and eight SPRING Pinch 4 Release the lock to remove two BRACKET Pinch 6 and two SPRING Pinch R 9 5 Release the lock to remove LEVER Sensor D IN 40 and SPRING Sensor 17 6 Unplug the Connection Code Wire 2 and re
109. orms that the 1st tray is pulled out in paper remaining state when feeding papers within the Duplex Informs that an I F time out occurs between the printer and Duplex Informs that a jam occurs in Remove all the papers from the inside of DUPLEX INPUT JAM feeding papers to the Duplex printer unit and Duplex unit and close the REMOVE THE PAPER unit cover DUPLEX FEED 1 REMOVE THE PAPER Remove all the papers from the inside of printer unit and Duplex unit and close the cover Remove all the papers from the inside of printer unit and Duplex unit and close the cover Remove all the papers from the inside of printer unit and Duplex unit and close the cover Remove all the papers from the inside of printer unit and Duplex unit and close the cover Verify connection of LEX PCB and square shaped connector Replace the square shaped connector if necessary Replace LEX PCB 4 3 2 Troubleshooting Flow JAM error Duplex INPUT JAM Is the leading edge of paper is fed in the Duplex unit Yes Has the leading edge of paper reached the Duplex In sensor Yes Is the Duplex In sensor lever operating normally Yes Is the connection cord between the Duplex In sensor and the Board LEX connected properly Yes Does the connection cord have a break Yes Replace the connection cord Connection Code Wire Replace the Duplex In sensor FX50 Photo Sensor OK Yes end No Connect the connection cord properly
110. ote When replacing the main board install the EEPROM mounted on the replaced main board Repace the image drum cartridge Note After replacing the drum cartridge reset the drum counter Refer to the User s Manual Replace the fuser unit Note After replacing the fuser unit reset the fuser counter Refer to chapter 4 2 1 Normal operation Normal operation Category LCD status message Trouble or status Daily status SEND Prints all the fonts which are included in the printer Normal operation or Ready Light on execution by command Ready Flash execution by switch ATTENTION Indicates that the printer is under cleaning printing process Set requested paper to front tray and press FORM FEED The second line will become MANUAL LETTER REQUEST button MANUAL mmmmmm REQUEST MANUAL A4 SIZE REQUEST ATTENTION Prints the demo page Normal operation POTE DOMO eae Ready light on execution by command e Ready flash execution by switch ATTENTION Prints current menu setting Normal operation DD PRINT MENU 9 m Light on execution by command Ready Flash execution by switch ATTENTION Requests that a sheet indicated in the second line message is inserted Set requested paper to front tray and press FORM FEED by hans button mmmmmmmmm MANUAL YYYYYYYY REQUEST YYYYYYYY sheet type PAPER ENVELOPE Promotes an forced exit by FORM FEED swit
111. ow after the compression of frame buffer Remove the paper from the stacker Repair the broker stacker sensor cable Repeat the insertion and removal of the connector Clean or replace the stacker full sensor Load a paper or paper cassette to the tray Install the displayed tray Load the requested paper in tray Warnig Check the print job format Press the RECOVER key on the operator panel to release the error display Install an expansion optional RAM or reduce the amount of print data Category LCD status message Trouble or status Daily status ATTENTION ATTENTION ERROR RECEIVE BUFFER OVERFLOW ERROR PRINT OVERRUN ERROR HOST I F RS232C FRONT TRAY ERROR PRESS RECOVERKEY IONER EMPTY REPLACE TNR CART ERROR PAPER SIZE CHECK tttttt Informs that the data within the receiving buffer Overflows The operation is continued by pressing Recover switch The host side should be changed in settings to be able to recognize a printer Busy status and the data be re transmitted Informs that the printer occurs an Overrun The operation is continued by pressing Recover switch The page formatting should be slightly simplified It can be canceled in PS mode when the completion of a job Informs that an error occurs in serial I F The operation is continued by pressing Recover switch This is indicated when parit
112. owing sequence First the printing data through DATAO are stored sequentially shifted in the shift registers of the LED drivers by the printing data synchronous clock CLOCK Then the printing data stored in shift registers are latched by the high level pulse of LOAD The latched printing data turns the LEDs on by STRB1 N through STRB4 N and actuates printing Paper Jam Detection The paper jam detection function supervises the paper state at power on time and during printing In the event that the following state occurs this function interrupts the printing process If any of the following errors is presented recovery printing will be performed by removing the jammed paper namely by opening the upper cover removing the jammed paper and closing the upper cover Cause of error Paper input jam At power on time the paper is placed at the inlet sensor After hopping operation is attempted three times the leading part of the paper does not reach the inlet sensor Paper feed jam At power on time the paper is placed at the paper sensor The leading part of the paper does not reach the paper sensor within a predetermined distance after the paper has reached the inlet sensor The traiding part of the paper does not pass over the paper sensor within a predetermined distance after the leading edge of the paper has passed over the paper sensor The leading part of paper does not reach the outlet sensor within a predetermined di
113. plex Unit maintenance manual See appendix C YES END NO Replace the Main board T I F time out occurs between the printer and the operator panel ERROR 80 sthe connecting cord of the operator panel connected to the PANEL connector of the Main board properly See chapter 7 1 No Connect the connecting cord of the operating panel to the PANEL connector of the Main board properly Yes Is the connecting cord defective Yes Replace the connecting cord No Replace the operator panel assembly Is the printer recovered No Replace the Main board YES END Message cannot be received through the parallel interface e sthe parallel ENABLE in HOST item of Menu 1 No Setthe Parallel I F to ENABLE Yes Is the host set to the bidirectional communication Yes parallel to the bidirectional communication enable state DISABLE ENABLE in menu level 2 No Setthe parallel to the bidirectional communication disable state ENABLE DISABLE in menu level 2 Is the printer recovered Yes END No 15 connector of the parallel interface cable connected to the printer prop erly No Connect the connector of the parallel interface cable to the printer properly Yes Is there any defect in the cable broken or bent pin broken wire Yes Replace the parallel interface cable No Replace the Main board or ask the user to check the hardware and software at the host side
114. ply roller of the image drum cartridge contacted with the contact assembly properly See Figure 6 5 and No Adjust the contacts of the developing and toner supply roller to contact the contact assembly properly Yes gt Replace the transfer roller See 3 3 36 Has the trouble been removed Yes End No Replace the image drum cartridge Has the trouble been removed Yes End Note After replacing the image drum cartridge set the printer in the user maintenance mode by turning the power on while pressing the MENU key and reset the drum counter Refer to User s Manual Yes Is the contact plate of the transfer roller contacted with the contact assembly of the Replace the Main board or Power Supply Unit High Voltage Dark background density Has the image drum been exposed to external light e Yes Mount the image drum the printer and wait for about 30 minutes Is the heat roller of the fusing unit dirty Yes Clean the heat roller Is the contact of the cleaning roller of the image drum cartridge contacted with e contact assembly properly See Figure 6 5 No Adjust the contact of the cleaning roller to contact the contact assembly prop erly Yes Replace the image drum cartridge Has the trouble been removed Yes End Note After replacing the image drum cartridge set the printer in the user maintenance mode by turning the power on while pressing the MENU key and reset the dru
115. power is turned ON while pressing the Recover key This mode adopts the menu for function selection The system maintenance mode is provided with the following functions Page count display e total number of pages counted at the engine is displayed on the Page count printing enable disable e hisfunction selects whether to include enable or exclude disable the total number of printed pages counted at the engine at the time of menu printing Rolling ASCII continuous printing e Therolling ASCII pattern is printed continuously for various engine tests e Press the ON LINE key to cancel this mode RS232C LOOP TEST e Performs a loop test of RS 232C EEPROM reset e All EEPROM areas including Menu level 2 to the factory default values e following items are excluded Head drive time setting Fine adjustment of printing start position Standard tray paper feed amount setting e Transition to the operation mode occurs upon completion of resetting e Press the Menu key to update each category The operation returns to the first category after updating the last category HSP ERROR recovery e Select HSP ERROR recovery function either recover or stop HSP ERROR count e Display total ERROR count 8 HSP ERROR count reset Heset the HSP ERROR counter 9 SIDM enable disable If it s selected disable cannot select SIDM emulations by Menu oystem maintenance mode menu system RECOVER key
116. r and operator panel EEPROM Control of a serial interface between controller and power supply board I O port Inputting of various sensor signals Outputting of various control signals Motr driver controller Control of Main Motor Compression extension circuit Compressed frame buffer is produced by compressing the data of temporar band buffer Extension printing operation is executed by extending the data of compressed frame buffer 2 Program font ROM s The program font ROM s store the HP LJ5 emulation program and various types of font MASK ROM is used as the program font ROM s 3 DRAM s 4 Megabyte DRAM 16 Mbit DRAM x2 is mounted as resident memory to be used for storing the program and providing various buffers This DRAM is expandable up to 68 Mbytes by adding expansion memory SIMMs This DRAM provides the areas shown in the following table Memory area Use Memory capacity setting MENU Expansion RAM Raster buffer Stores converted bit image data Enable Expandable Receive buffer Stores temporarily the data received Enable Expandable from the host interface Page buffer Adds print information to the analyzed Expandable receive data and stores the resulted data DLL macro buffer Stores soft fonts and macro data Expandable Font cache buffer Stores bit map fonts generated by the Enable Expandable font rasterizer based on scalable font information 4 EEPROM The EEPROM has a 1 kbit capacity and stores the follow
117. r is composed of conductive sponge material and is designed to make the image drum surface and the paper closely into contact Paper is placed over the image drum surface and a positive charge opposite in polarity to the toner is applied to the paper from its reverse side The application of a high positive voltage from the power supply to the transfer roller causes the positive charge induced to the transfer roller surface to be transferred to the paper at the contact between the transfer roller and the paper As a results toner charged negative that is attracted to the image drum surface is transferred to the upper side of the paper by the positive charge on the lower side of the paper Image drum Transfer roller 7 Fusing After the end of the transfer the unfused toner image is fused on the paper under heat and pressure as it passes between the heater roller and the back up roller The heater roller with a Teflon coating incorporates a 750W heater Halogen lamp which heats the heat roller A thermistor which is in contact with the heater roller regulates the heater roller at a predetermined temperature about 180 200 C safety thermostat cuts off voltage supply to the heater by opening the thermostat in the event of abnormal temperature rises The back up roller is held under a pressure of 5 kg from the pressure spring at each side Heater Separation Claw Thermistor Heater Roller Paper Pressure Spring
118. rder and lifting out the roller assy regist 3 3 12 Motor Main 1 Remove the stacker assy See 3 3 6 2 Remove the feeder unit front See 3 3 10 At this point the manual feed assy has not to be removed 3 Remove the DC fan motor See 3 3 3 4 Remove the contact assy See 3 3 2 5 Remove the plate FG F 1 6 Remove the TR gear and roller transfer 7 Unscrew 7 screws 4 and remove the main frame 8 Unlock latches at two points of the lever back up release and pull out it in right direction 9 Unhook the EP lock spring 7 and remove the EP lock lever Q 10 Take off the E ring 9 and remove the plate FG 1st 40 and gear assy clutch Q9 11 Unlock 2 latches to remove the motor assy main and idle gear B 12 Unscrew 2 screws 44 and remove the motor main No NN 4 ENS 4 lt A N ru 3 3 13 Guide Assy Eject 1 Remove the lever back up release See 3 3 12 8 But the roller transfer feeder unit front plate FG have not be removed 2 Remove the cover rear See 3 3 6 5 3 Loosen 2 screws 1 unlock the both side s latches and remove the cover rear 4 Unlock the latches on both sides of the guide assy eject and lifting it out MO 7 Y M NA NE 3 3 14 Heat Assy 1 Remove the cover assy side L See 3 3 2 1 2 Unplug the connectors 0 3 Unscrew 4 screws 3 and remove the heat assy i
119. res in the reverse order Precautions Concerning Parts Replacement 1 Parts replacements must be carried out by first turning the printer power switch off and removing the Duplex Unit from the printer Do not disassemble the Duplex Unit if it is operating normally Establish the extent of disassembly suitable for the purpose of the procedure and do not disassemble any more than necessary Only specified service tools may be used Disassembly must be carried out according to the prescribed procedures Parts may be damaged if such procedures are not followed Small parts such as screws and collars can easily be lost therefore these parts should be temporarily fixed in the original location When handling printed circuit boards do not use any glove which may generate static electricity Do not place the printed circuit boards directly on the equipment or floor Service Tools Table 3 1 shows the tools required for the replacement of printed circuit boards and units in the field Table 3 1 Service Tools Service Tools No 1 100 Philips screwdriver 1 1 ae a i a No 5 200 screwdriver 1 e Digital multimeter m un Connector remover OKI P N 4PP4076 5395P1 C 10 Parts Layout 3 2 This section describes the layout of the main components Solenoid Assy Control board Photo sensor Connect
120. roperly See chapter 7 1 e No Connect these connectors properly No 15 coil resistance normal resistance between pins 1 and 2 between pins 3 and 4 3 1 of the drum motor normal e No Replace the drum motor Is the printer recovered No Replace the Main board YES END Go to on the next page From on the preceding page A No No No Is the transfer roller rotating smoothly No 15 any defective gear of the transfer roller e Yes Replace the defective gear No Replace the transfer roller Is the fuser unit installed properly No Install the fuser unit properly Is the image drum cartridge set properly No Setthe image drum cartridge properly Does the paper sensor lever operate smoothly No Replace the paper sensor lever Yes Clean the paper sensor on the Power Supply Unit High Voltage See Fig 2 3 Sensor Layout Diagram Is the printer recovered the Power Supply Unit High Voltage YES END 2 4 Paper exit jam Does a paper exit jam error occur when the power is turned on YES e Yes e Yes Is the paper on the outlet sensor lever Yes Remove the paper e No Does the outlet sensor lever operate smoothly No Replace outlet sensor lever Yes Clean the outlet sensor on the Power Supply Unit AC120V or 230V See Fig 2 3 Sensor Layout Diagram Is the printer recovered No Replace the Power Supply Unit AC120V or 2
121. roperly or replace the nylon connector cord white 9 pins Is the coil resistance normal resistance about 6 7 W of the hopping motor normal Replace the hopping motor Replace the Main board 6 19 2 2 Paper input jam front feeder Does jam error occur when the power is turned on Yes Is the paper at the inlet sensor lever Yes Remove the paper No Does the inlet sensor lever operate smoothly No Replace inlet sensor lever e Yes Clean the inlet sensor 1 on the Power Supply Unit High Voltage replace the Power Supply Unit High Voltage See Fig 2 3 Sensor Layout Diagram e No Does ajam error occur after paper feeding Yes Is the paper fed on the inlet sensor lever Yes Goto No Goto B Does the front feeder paper sensor lever operate smoothly No Replace the lever of the front feeder paper sensor Yes Clean the front feeder paper sensor Is the printer recovered YES END No Replace the front feeder paper sensor assembly No Is the hopping roller rotating Yes the paper properly No 15 the hopping motor rotating Yes Replace the front feeder gear or idle gear gt 2 3 Paper feed jam Does a paper feed jam occur when the power is turned on Yes NO Is the paper on the paper sensor lever Yes Remove the paper No Does the paper sensor lever operate smoothly No Replace the paper sensor lever Yes Clean the paper s
122. s the Menu key Press the Upon completion Enter key of processing kk FUSR CNT gt FUSR CNT gt ON LINE RESET RESET NG Press the Menu key Press the Upon completion Enter key of processing kk ENGINE ENGINE ON LINE RESET RESET NG Press the Menu key Press the ON LINE key INITIALIZING ON LINE XXX 4 13 41 4 EEPROM initialization The corresponding area of the EEPROM is initialized for each event as shown Table 4 1 and Table 4 2 Table 4 1 EEPROM Initial Setting Range 7 i Users Maintenance Menu Reset Systeems Maintenance EEPROM Reset Menu Level 1 Menu level 2 F W Revision Range Destination Information Maintenance Systems Maintenance Total Print Firm Revision Check Error Power On Engine ID Check Error at Power On Setting for Shipping Destination Users Information o 7 Error Note 1 The items for each maintenance menu of the events are to be listed Engine Maintenance Engine Reset Table 4 2 Items Related to Each Maintenance Menu of EEPROM Reset Users Maintenance Menu Range Maintenance Menu Users Maintenance Menu Range Systems Maintenance Menu Range Maintenance Menu Systems Maintenance Menu Range Engine Maintenance Menu Range Resource Save Enable Disable of Total Number of Menu Correction head type excluding the time Print upon engine maintenance engine reset Receive Buffer Enable Disable of Switching SIDM LED head drive time e
123. stance after the paper has reached the paper sensor Paper exit jam At power on time the paper is placed on the outlet sensor The paper does not pass over the outlet sensor within a predetermined after the leading part of the paper has reached the outlet sensor The paper size check with the manual feed specified considers the reference size as free size Paper size error The size of the paper is supervised by the inlet sensors 1 It is detected that the paper does not pass over the inlet sensor 1 within predetermined range of distance The inlet sensor 2 detects that the size of the loaded paper is A4 or larger or smaller than A4 The detected paper size differs from the paper size set by command or menu The paper size check with the manual feed specified considers the reference size as free size 2 5 Cover Open When the stacker cover is opened the cover open microswitch on the Power Supply Unit High voltage is turned off to cut the supply of 30V to the high voltage power supply circuit As a result all high voltage outputs are interrupted Atthe same time the CVOPN signal is sentto the control board to notify it of the off state of the microswitch and the Main board performs the cover open processing 2 6 Toner Low Detection Operation during toner low state Operation during toner full state d Composition The device consists of the stirring gear which rotates at a constant rate the stirring bar and t
124. tely Yes Is the thermistor open or shorted Measure the resistance between thermistor contacts About 220 kQ at room temperature 25 C See chapter 7 3 for the measuring points Yes Replace the fuser unit A No Is a cable of the thermistor connected to CN8 connector on the Power Supply Unit Is there any flaw on the cable of the thermistor e No Adjust the thermistor contact so as to touch the contact assembly properly e Yes Does appear the heat on signal at pin 6 HEAT ON signal 0 V in heater state of the POWER connector on the Main board No Replace the Main board e Yes Replace the Power Supply Unit High Voltage No Does a fuser unit error occur after more than 120 seconds from the power on Goto Yes power OFF ON Is the heater of the fuser unit turned on When the heater is turned on heat is radiated e Yes Is a cable of the thermistor connected to connector on the Power Supply Unit High Voltage e No Isacable of the heater connected to CN2 connector on Power Supply Unit 120V or 230V To on the next page To on the next page From on the preceding page From on the preceding page B Yes Replace the fuser unit e 15 the printer recovered No Replace the Main board YES END No Is the heater or thermistor open Measure the resistance between the thermistor contacts and between heater contacts normal resistance 220 2
125. terface cable 6 DSR 20 DTR DB25S Connection method Test connector connecting drawing 6 31 Data cannot be received through the OKI HSP interface e sthe interface board option connected to the interface connector on the board properly Yes Yes NO OK NO Connect the interface board option to the OKI HSP interface connector properly Is there any broken or bent pin in the interface board option Ask the user to replace the interface board option Replace the Main board A trouble may exist in the interface board option interface cable or host side Ask the user to check these items 1 Synchronous serial error ERROR 74 Are POWER connector of the Main board and Connection cord wire Fig 8 2 No 21 properly Are Connection cord wire Fig 8 2 No 21 and CN3 connector of the Power Supply Unit AC120V or 230V connected properly No Connect the connectors properly Yes Is there any flaw or breake Yes Replace the connection cord wire Yes Replace the Main board Is the printer recovered No Replace the Power Supply Unit High Voltage Yes END 6 5 3 Image troubleshooting Procedures for troubleshooting if abnormal images have been printed out are explained below Figure 6 3 below shows typical abnormal images Trouble Flowchart number Images are light or blurred as a whole Figure 6 4 Dark background density Figure 6 4
126. th MTR 21 11 66 jf 7 Appendix D Second Third Paper Feeder Maintenance PREFACE This Maintenance Manual is intended for the service personnel and describes the field maintenance methods for Second Third Paper Feeder option of OKIPAGE20 OKIPAGE20n Page Printer Refer to the USER S MANUAL for the equipment handling and operation methods CONTENTS D 4 See RTT D 4 1 2 Appearance and Parts Name rere nier nta rn nera nn o ne D 4 Description of operartion curd nS D 5 2 1 Driving 5 5 2 2 Hopper Mechanism ETT D 7 PARTS REPLACEMENT 2 2 4 21 1 D 8 3 1 Precautions Concerning Parts Replacement D 8 REL T0 D 10 3 3 Parts Replacement 5 D 11 3 3 1 Roller assy hopping Roller assy D 12 du EIU D 13 gt mimis NR D 14 3 3 4 Lever paper end Lever paper near D 15 T MN det D 16 3 36 Connector IMSA 9714N 14B Connector IMSA 9714N 14A D 17 3 3 7 X Frange pulley pulley Idle Mini pitch belt Plate Earth shaft Gear
127. to the direction of arrow H and drives idle gear J The rotation of idle gear J is transmitted to the gears linked to it and drives pulley on the same shaft as roller A turning roller C to feed the paper into the printer until it reaches the registration roller of the printer During this process a one way bearing is engaged at pulley so that the rotation of pulley is not transmitted to roller A preventing any feeding of papers by roller A Planet gear F Hopping motor Idle gear J Paper Roller B Pulley Belt Roller A 2 2 Hopper Mechanism The hopper automatically feeds the printer with the paper being set single sheet at a time Multi Feeder Printer Roller B Roller A Registration roller 3 1 PARTS REPLACEMENT This section covers the procedures for the disassembly reassembly and installations in the field This section describes the disassembly procedures and for reassembly procedures basically proceed with the disassembly procedures in the reverse order Precautions Concerning Parts Replacement 1 Parts replacements must be carried out by first turning the printer power switch off and removing the Multi Feeder from the printer Do not disassemble the Multi Feeder if it is operating normally Establish the extent of disassembly suitable for the purpose of the procedure and do not disassemble any more than necessary Only specified service tools may be used Disasse
128. tter Executive Legal13 Legal14 e Special Size Paper Width 210 to 216mm Paper length 279 to 356mm Weight e 16lbs 24 lbs 64 81 g m2 1 2 External View and Component Names 2 1 MECHANISM DESCRIPTION General Mechanicsm When the Duplex Unit receives an instruction for both sided printing from the unit the separator will be opened by the action of a solenoid within Duplex and the route will be shifted to the one into the Duplex after one sided printing of papers which are fed from the tray are completed At this time as the roller 1 rotates in the direction of arrow A a sheet is retracted in the rear of the cassette And then a given time later after the edge of the sheet passes through the IN SNS DUP the roller will reverse and the roller 1 rotates in the direction of arrow B and sending out the paper into the Duplex After that it passes though the roller 2 and 3 and is fed again into the unit given a another sided printing and ejected Roller 3 Front Roller 2 Rear Roller 1 Sensor Sensor In retracting paper In sending out paper 2 2 JAM Release Mechanism The LEVER Lock can be pulled outwards and the sheet route section of the Duplex opens by pulling out the cassette This enables a jam to be released Structurally the LEVER Release can be pushed up by back edge of cassette and the sheet route automatically close when the cassette is returned LEVER Release LEVER Lock
129. u 4 Signal level e MARK polarity 3V to 15V LOGIC 1 e SPACE polarity to 15V LOGIC 0 5 Interface circuit a Receiving circuit 75189 or equivalent INPUT output 12V 3V 3V INPUT 12V b Sending circuit 75188 or equivalent INPUT Deum OUTPUT 147 9V 9V Note The above signal level is for the case where x 15pF is being connected to the terminal 6 Communications protocol a READY BUSY protocol b X ON X OFF protocol Appendix C DUPLEX UNIT Maintenance PREFACE This Maintenance Manual is intended for the service personnel and describes the field maintenance methods for Duplex Unit option of OKIPAGE20 OKIPAGE20n Page Printer Refer to the USER S MANUAL for the equipment handling and operation methods CONTENTS OUTLINE C 4 M MELIUS C 4 1 2 External View and Component Names C 4 MECHANISM DESCRIPTION 2 2 2 2 2 5 2 1 General Mechanicsm 5 2 2 JAM Release Mechanism C 6 2 3 Removing Installing Duplex C 7 PARTS REPLACEMENT 2 22 2 2 2 1 C 9 3 1 Precautions Concerning Parts Replacement C 9 11 3 3 Parts Replacement 5
130. ubleshooting Flow If troubles should develop in this printer troubleshoot in the following procedure flow Troubles Troubleshoot from the LED Perform detailed trouble indicated by LCD status message list 3 shooting with the trouble message See 6 5 1 shooting chart See 6 5 2 Image troubles Perform troubleshooting and troubles that with the troubleshooting are not indicated by chart See 6 5 3 LCD message 6 5 1 LCD status message trouble list Table 6 1 lists the status and troubles that may be indicated by messages on the LCD LED status OFF BLINK O ON C Undefined Category LCD status message Trouble or status Daily status Indicates on line status Normal operation e ON LINE tttttt Tray ATTENTION TRAY 1 TRAY 2 TRAY3 and FRONT MANUALFEEDER Tn Cassette tray T1 TRAY 1 T2 TRAY 2 T3 TRAY 3 mmmmmmmmnm Paper size in the tray being selected LETTER EXECUTIVE LEGAL 14 LEGAL 13 A4 SIZE A5 SIZE A6 SIZE B5 SIZE 10 9 DL ENV C5 ENV C4 ENV XXX Emulation in operation AUT PCL PS PPR FX and HEX dddddd The mode of both sided printing one sided printing is indicated DUPLEX SIMPLEX Indicates off line status e OFF LINE XXX dddddd LUEULL ATTENTION Indicates during data receiving or outputting PROCESSING ATTENTION Indicate that not yet printed data is remained in the buffer In
131. ve PM SFr pies E 5 2 2 Hopper Mechanism E 6 7 3 1 Precautions Concerning Parts Replacement 7 NETTE 9 3 3 Parts Replacement 5 10 11 29 POLEP OB 12 9 9 9 eguare shaped 13 3 3 4 Hopping der 14 9 5 9 oa E UOI DUUM eas 15 RO B L 16 ONSE beside sya DENEN NN MUR E 17 3 3 8 Mini pitch belt amp Feed 18 TROUBLESHOOTING 19 4 1 Precautions Prior to the Troubleshooting E 19 4 2 Preparations for the Troubleshooting E 19 4 3 Troubleshooting Method epa e Io qe baa ager utens E 19 4 3 1 LOD Status Message LSU iniret eoo 20 4 3 2 Troubleshooting E 21 CONNECTION DIAGRAM 1 eere rennen nennen nnn nnnm nnns E 22 5 1 22 92 23 P
132. ws 5 and remove the frame 4 see 3 3 6 Move the belt to the right and remove it from the one way pulley 6 Move the carrier roller assembly to the right and remove it from the shaft 7 Move the roller A 8 to the right lift its left side and then pull it off to the left Be careful not to lose the shaft 7 being removed together Ss SS Belt Carrier roller assy E 17 3 3 8 Mini pitch amp Feed roller 1 Remove the roller A see 3 3 7 2 Remove the bearing 1 and remove the feed roller assy 2 3 Remove two bearings 3 and remove the plate 4 4 Remove the mini pitch belt 5 and the feed roller 6 4 1 4 2 4 3 TROUBLESHOOTING Precautions Prior to the Troubleshooting 1 Go through the basic checking items provided in the Operator Guide 2 Obtain detailed information concerning the problem from the user 3 Go through the checking in the conditions similar to that in which the problem occurred Preparations for the Troubleshooting 1 Display on the operator panel The status of the problem is displayed on the LCD Liquid Crystal Display on the operator panel Go through the appropriate troubleshooting procedures according to the messages displayed on the LCD Troubleshooting Method When a problem occurs go through the troubleshooting according to the following procedure Problem occurs Problem displayed by Troubleshooting Carry out detail
133. xcluding the time Emulation upon engine maintenance engine reset Enable Disable of Operator Panel 600 x 1200dpi strobe time relative value Menu Function excluding the time upon engine maintenance engine reset YI DUP ADJUST Print start position Print Shift to Left Based BEEN Paper feed distance from the Duplex Unit Cleaning Cycle Control parameter of each option tray motor 4 14 4 2 Adjustment When Replacing A Part Adjustment necessary when replacing one of the followimg parts Part Replaced Adjustment Image Drum Cartridge Reset the image drum counter Refer to User s manual Fuser Unit Reset the fuser counter Refer to Chapter 4 2 1 421 Resetting the fuser counter 1 The fuser counter can be reset in the engine maintenance mode 2 Resetting method Operation LCD display With the ENTER and FORM ENG MNT FEED keys pressed turn the printer power on Press the MENU key until FUSER FUSER COUNT COUNT RESET is displayed RESET Press the ENTER key to reset the fuser count After the initializing process is completed the printer enters into the operation mode 4 16 4 2 2 Destination setting The desired destination can be set by turning the power on while depressing two keys corresponding to the destination according to the following table Destination Keys to be depressed DA MENU gt OEL OKI INT A MENU PAPER SIZE Australia etc OKI INT L MENU TRAY TYPE Singapore
134. y LED LENS CLEANER and remove the paper powder Plastic Film 2 3 Take the remove paper powder out of the printer unit in such a way as not to spill it and then waste it U mM 6 TROUBLESHOOTING PROCEDURES 6 1 6 2 6 3 TROUBLESHOOTING PROCEDURES Troubleshooting Tips 1 Check the basic check points covered in the user s manual 2 Gather as much information on the problem from the customer as possible 3 Perform inspections in conditions close to those in which the problem had occurred Points to Check before Correcting Image Problems 1 15 the printer being run in proper ambient conditions 2 Have the supplies toner and the routine replacement part image drum cartridge been replaced properly 3 Is the paper normal See paper specifications section 4 the image drum cartridge been loaded properly Tips for Correcting Image Problems 1 Do not touch or bring foreign matter into contact with the surface of the image drum 2 Do not expose the image drum to direct sunlight 3 Keep hands off the fuser unit as it is heated during operation 4 Do not expose the image drum to light for longer than 5 minutes at room temperature 64 Preparation for Troubleshooting 1 Operator panel display The failure status of this printer is displayed on the liquid crystal display LCD in the operator panel Take proper corrective action as directed by messages that are displayed on the LCD 65 Tro
135. y applying a DC minus voltage to the charge roller that is in contact with the image drum surface Charge roller Image drum 4 Exposure Light emitted from the LED head irradiates the image drum surface with negative charges The surface potential of the irradiated part of the image drum drops thereby forming an electrostatic latent image associated with the image signal LED head Charge roller yx LED head Image drum Paper Image drum 5 Developing Toner is attracted to the electrostatic latent image on the image drum surface to convert it into a visible toner image Developing takes place at the contact between the image drum and the developing roller D Asthetoner supply roller rotates while rubbing on the developing roller a friction charge is generated between the developing roller and the toner allowing the toner to be attracted to the developing roller The developing roller surface is charged positive and the toner negative Doctor blade Charge roller Toner supply roller Developing roller Image drum 2 toner attracted to the developing roller is scraped off by the doctor blade forming a thin coat of toner on the developing roller surface 3 Toner is attracted to the exposed part low potential part of the image drum at the contact between the image drum and the developing roller making the electrostatic latent image visible 6 Transfer The transfer rolle
136. y error framing error overrun error and so on is detected The protocol of host and printer should be rechecked Informs that an error occurs in the home position of front tray Although the front tray becomes unavailable by pressing Recover switch the other trays continue operating normally Promotes by indication that a cartridge should be replaced after a 100 sheet printing since the detection of toner low It is temporarily reset by opening and closing the cover This indication will be displayed each 20 sheet printing unless the cartridge is replaced Paper of improper size was fed from the tray MANUAL TRAY1 TRAY2 FRONT FEEDER Press the RECOVER key on the operator panel to release the error display Change the setting of the host side so that the host can detect the busy state of the printer Resend the data from the host side to the printer Press the RECOVER key on the operator panel to release the error display Simplify page data formatting Press the RECOVER key on the operator panel to release the error display Check the settings of RS232C I F in the menu Replace the interface cable or the Main board Board AAA Note When replacing the Main board install the EEPROM mounted in the replaced Main board Check front tray home sensor Replace the toner cartridge Check the paper in the tray or check to see if more than one sheet of copy were fed simultaneously Open the cover then close it to
137. yte data is transferred in the form of two nibbles using ERROR BUSY FAULT and SELECT signal leads This mode can provide the bidirectional operation in combination with the compatibility mode e ECP mode This mode provides the asynchronous bidirectional interface and transmits and receives 1 byte data using eight data signal leads under the semi duplex control by the host When the power is turned on the compatibility mode is automatically selected The change to another mode from the compatibility mode is made through negotiation Whenthe BI DIRECTIONis setto ENABLE inthe menu this change can be performed For the electrical physical characteristics of this interface see APPENDIX B RS232C serial interface The following protocol is supported for the serial interface conforming to EIA RS232C READY BUSY HI DTR LO RBST X ON For the electrical physical characteristics of the interface see APPENDIX B OKI HSP interface Option This interface slot is an OKI unique universal interface that provides the platform to connect various of boards including those supplied by third venders such as the LAN connection expansion board and SCSI expansion board Any expansion boards compatible with this interface can be mounted on the Control board in the piggyback board from without modifying the program atthe printer side The conceptual diagram of the OKI HSP interface is shown in Fig 2 2 For the

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