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Service Manual: Russian C1a/Russian C1b

1. Reading Number Description 00H 01H 0 Not used 1 Front cover safety switch Closed Opened 2 Front cover safety switch LD5 V Closed Opened 3 Right cover switch Closed Opened 4 Right lower cover switch Closed Opened 5 Tray Cover optional paper tray unit Closed Opened Duplex unit open switch p Optional duplex unit 119590 Opened 7 Right upper cover switch Closed Opened Right guide switch 3 Optional bridge unit openga Left guide switch 3 Optional bridge unit 10 Not used 11 Paper overflow sensor Paper not detected Paper detected 12 15 used 16 Upper relay sensor Paper not detected Paper detected 17 Lower relay sensor Paper not detected Paper detected Vertical transport sensor 18 Optional paper tray unit Paper not detected Paper detected 4 61 SERVICE PROGRAM MODE Number Description Reading 20 September 1999 00H 01H 19 Registration sensor Paper not detected Paper detected 20 Paper exit sensor Paper not detected Paper detected Exit sensor 21 Optional interchange unit Paper not detected Paper detected Duplex entrance sensor 22 Optional duplex unit Paper not detected Paper detected aa Paper not detected Paper detected Optional Duplex unit Relay sensor Optional bridge unit Paper not detected Paper detected Tray exit sensor Optional bridge unit
2. 1u8I91jJ801 1914 ue9S qns GIGLI 1897 1491913909 191114 95 UIEN 191113 A265D510 WMF 2 22 IMAGE PROCESSING 20 September 1999 Binary Picture Processing pejejeq 8p 17 916 46 8h 17 616 48 2500 0196102 L Lv 07 916 48 Lb 0 516 746 26002 01 9609 o10ug 1xe 9v 6 916 rdS 97 66 916 745 26681 01 921 86 916 745 86 916 46 9 921 01 96 01044 1 1 vy 16 916 48 vv 16 916 45 9596 01 9606 01044 1 96 916 45 Ev 96 916 746 2668 01 9606 01044 1 96 916 48 cv 96 916 745 6 01 9982 1 ve 82 916 745 VE 82 916 45 00 01 96102 1xe1 66 72 916 748 2 S16 FdS 96002 01 96091 1x01 ZE 97 916 rdS 26 92 S16 vdS 96681 01 95921 1x81 92 916 48 1 92 916 48 96821 01 96 1 1 06 2 916 745 06 72 616 46 9686 01 09 1 1 7 916 rdS 62 62 916 746 9665 01 GZ 1 1 adAy 01910017 10109101091 19114 ueog qng 01 0 01001009 1 991 0 1
3. 1 7 Scanner tie aHa t nM 1 7 tenete iners ond dan sensa oeil eem pr ra 1 8 1 4 MECHANICAL COMPONENT 1 9 1 5 ELECTRICAL COMPONENT 1 11 16 DRIVE LAYOUT 1 14 1 7 CORY PROCESS DR DA MM 1 15 Jal OVERVIEW 1 15 50 a cel eaa d ca eoa eel a 1 17 OVERVIEW e TED mE 1 17 1 8 2 DESCRIPTION s xci EP RE PUER a a o 1 18 2 DETAILED SECTION DESCRIPTIONS 2 1 Pas O M m up eto ar 2 1 OVERVIEW dose vp 2 1 2 1 2 SCANNER DRIVE aceite ibo ndi qug Mesue x Eae M UU UE 2 2 2 1 8 ORIGINAL SIZE DETECTION IN PLATEN MODE 2 3 2 2 IMAGE PROGESSIN L dane vse deterior sep iam ee 2 5 2 21 SOV WI EW ies exe ate nc edna et eri acetate 2 5 2 2 2 SBU SENSOR BOARD UNIT J 2 6 2 2 3 AUTO IMAGE DENSITY aperi 2 7 thi osse ae tah ale 2 7 In The Jp ll uie ion toD dn dm nipote mu 2 7 Service Mode Original 2 7 2 2 4 IMAGE PROC
4. oo an e The four gamma y correction curves and their characteristics are as follows e Non Auto Exposure ID linear NAE Corrects the image data in proportion to the original density e Auto Exposure ID linear AE Removes the background from the image data to some extent and corrects the rest of the image data in proportion to the original density e Reflection Ratio ID Linear Linear Uses the image data without correction Removed background SP Removes the background area completely and corrects the rest of the image data in proportion to the original density Linear Output Original Density Removed Background A250D550 WMF 2 19 IMAGE PROCESSING 20 September 1999 Main Scan Magnification Reduction Changing the scanner speed enables reduction and enlargement in the sub scan direction However the IPU chip handles reduction and enlargement in the main scan direction The processing for main scan magnification reduction is the same as in the previous digital machines Mirroring for ADF Mode Platen Mode ADF Mode A O SS Sub scan Main Scan A250D504 WMF When making a copy using the ADF the magnification circuit creates a mirror image This is because the scanning starting position in the main scan direction is at the other end of the scan line in ADF mode compared with platen mode In platen m
5. 8899 5 3 1 PAPER FEED ROLLER FRICTION PAD PAPER END SENSOR A899 5 3 2 PAPER SIZE SENSOR BOARD eei o eut A899 6 PAPER FEED CLUTCH 899 7 INTERCHANGE UNIT B300 1 OVERALL MACHINE INFORMATION B300 1 SPECIFICATIONS a edd carae qnte B300 1 1 2 MECHANICAL COMPONENT B300 2 WAV OU oit B300 3 2 DETAILED DESCRIPTION coe rotas io rna cue B300 4 2 1 JUNCTION GATE B300 4 To the Exit Tray or Bridge Unit for the Upper Tray on top of the Bridge Unit or the 2 4 4442 B300 4 To the 1 bin B300 4 To the Duplex Unit 2 B300 4 3 REPLACEMENT AND ADJUSTMENT B300 5 3 1 EXIT SENSOR B300 5 DUPLEX A896 1 OVERALL MACHINE INFORMATION A896 1 SPECIFICATIONS secteur ESPERE YI Ere END A896 1 1 2 MECHANICAL COMPONENT A896 2 1 3 ELECTRICAL COMPONENT LAYOUT sse A896 3 1 4 ELECTRICAL COMPONENT
6. A860 3 1 4 ELECTRICAL COMPONENT A860 4 18 DRVA DT A860 5 2 DETAILED DESCRIPTIONS A860 6 2 1 PAPER FEED AND SEPARATION A860 6 2 2 PAPER LIFT MECHANISM 1 860 7 239 PAPER END DETECTION iti cb i ect roce A860 9 24 PAPER HEIGHT DETECTION s tra rf ek A860 10 1 5 PAPER SIZE DETECTION A860 12 1 6 SIDE AND END FENGES eee A860 13 RS A 860 13 End Fe E 860 13 3 REPLACEMENT AND ADJUSTMENT A860 14 3 1 FEED ROLLER REPLACEMENT A860 14 3 2 TRAY MAIN BOARD A860 15 3 3 TRAY MOTOR REPLACEMENT A860 15 3 4 RELAY CLUTCH REPLACEMENT een A860 16 3 5 UPPER PAPER FEED CLUTCH REPLACEMENT A860 17 3 6 LOWER PAPER FEED CLUTCH A860 18 3 7 LIFT MOTOR REPLACEMENT eene A86
7. A862 11 Bear Fence vc v LO LA a862 11 3 3 CHANGING THE TRAY PAPER 14 A862 12 3 4 LEFT TRAY PAPER END A862 12 8 9 tuv Ma Ure Mta 862 13 tu UY DAG OOP TU A862 14 3 7 PAPER FEED CLUTCH AND RELAY A862 15 SB PAPER FEED DIT cg eh exe brevet A862 16 3 9 UPPER LIMIT RIGHT TRAY PAPER END AND RELAY SENSORS i eua Mixer aio M ag A862 17 3 10 REAR FENCE MOTOR 295420020 n tiec A862 18 3 11 PICK UP PAPER FEED REVERSE 8 A862 19 BY PASS UNIT A899 1 OVERALL MACHINE INFORMATION A899 1 I T SS PECIPIGATIONS prid atu iene ceviche sinc agi A899 1 1 2 MECHANICAL COMPONENT LAYOUT eem A899 1 1 8 ELECTRICAL COMPONENT LAYOUT eee A899 2 1 4 ELECTRICAL COMPONENT A899 2 2 DETAILED DESORIPT IONS exter artnet rx hr 899 3 2 1 BASIC OPERATION 899 3 2 2 PAPER SIZE DETLEGT ION tacit asi eo hri ac A899 4 3 REPLACEMENT AND
8. A267V102 WMF Optional ADF Optional 1 bin Tray Optional Interchange Unit Optional Duplex Unit Optional By pass Feed Tray Optional Paper Tray Unit Optional 1000 sheet Finisher Optional Bridge Unit 20 September 1999 MECHANICAL COMPONENT LAYOUT 1 4 MECHANICAL COMPONENT LAYOUT 5 E o 1 2 3 4 5 6 7 8 29 no Tr je 27 10 11 12 13 14 26 15 16 17 24 18 19 20 21 A265V100 WMF 23 22 MECHANICAL COMPONENT LAYOUT 2nd scanner Original width sensor Exposure lamp 1st scanner Original length sensor Lens Scanner motor SBU board Exit roller Fusing hot roller Fusing pressure roller Cleaning unit OPC drum Transfer roller Development roller ager c 2 lll 16 17 18 19 20 21 22 23 24 25 26 27 28 29 20 September 1999 ID sensor Registration roller Friction pad Paper feed roller Paper size sensor Special paper sensor Bottom plate Tray heater Polygon mirror motor Laser unit Toner supply bottle holder Drum charge roller Anti condensation heater Scanner home position sensor 20 September 1999 1 5 ELECTRICAL
9. 4 68 4 2 7 SMC DATA LISTS 525 992 05 Y e HR OQ RENE ERR 4 69 4 2 8 ORIGINAL JAM HISTORY DISPLAY SP7 905 4 70 4 2 9 MEMORY ALL CLEAR SP5 80 4 71 Using a Flash Memory 4 71 Without Using a Flash Memory 4 71 4 2 10 PROGRAM 4 72 Program Download SP5 827 xus eacus e erret 4 72 Program Upload 5 5 826 4 73 4 2 11 NVRAM DATA DOWNLOAD 4 74 NVRAM Data Download 5 5 825 4 74 NVRAM Data Upload 5 5 824 4 75 4 2 12 APS AND PLATEN DF COVER SENSOR OUTPUT DISPLAY 4 76 4 2 13 DF APS SENSOR OUTPUT DISPLAY SP6 901 4 77 4 2 14 NIP BAND WIDTH 50 4 78 4 2 15 DISPLAY LANGUAGE 5 5 808 4 79 4 2 16 SERIAL NUMBER INPUT 5 5 811 4 79 4 2 17 ID SENSOR ERROR ANALYSIS 5 2 221 4 80 439 USER TOO O ERG cU Ur Mot 4 81 4 3 1 HOW TO ENTER AND EXIT USER 4 81 1 32 USER TOOLS TABLE dob Dow XY qtiod DE 4 81 system Setting
10. 2 48 detecto mnnm MU e E Iia ipie 2 48 Toner supply reference voltage Vref determination 2 48 Toner supply 2 48 Toner Supply Motor On Time Determinations 2 49 2 6 7 TONER SUPPLY IN ABNORMAL SENSOR CONDITIONS 2 50 BETON E E EE inating tied 2 50 TO SENSOR 52 1 1 17 15 2 50 2 6 8 TONER NEAR END END DETECTION AND RECOVERY 2 50 Toner Near End Detection 2 50 Toner Near End 2 51 Toner End Detectlollo 2 51 Toner Recovery 2 51 2 7 DRUM CLEANING AND TONER 2 52 2 7 1 DHUNLGBEEABNINGGS 2 52 2 7 2 TONER RECYCLING 2 53 2 8 PAPER FEED EE 2 54 2 8 1 OVERVIEW sat isto ER 2 54 2 8 2 PAPER FEED DRIVE MECHANISM 2 55 2 8 3 PAPER FEED AND SEPARATION MECHANISM 2 56 2 8 4 iie ennt Da OR Ga GU ERE tins 2 57 2 8 5 PAPER END aco eni Reti RERO QUIS 2 58 2 8 6 PAPER HEIGHT 2
11. cadence 4 81 Copy Setting 4 82 4A EEDS TP TT 4 83 4 83 de tab vitu bre editus desee 4 83 4 5 SPECIAL TOOLS AND 4 83 45 3 SPBOGIALE TOOLS ttt pente dico 4 83 45 2 F BRIOANTS hide inei inci vereinen ne ate inc in ei nds teas tne 4 83 PREVENTIVE MAINTENANCE SCHEDULE 5 1 DX PMOPABEE ELA a re S nc 5 1 REPLACEMENT AND ADJUSTMENT 6 1 6 1 SCANNER INI tinere 6 1 6 1 1 EXPOSURE GLASS bici adhibebat Soie de 6 1 6 1 2 SCANNER EXTERIOR OPERATION PANEL 6 2 6 1 3 LENS BLOCK ASSEMBLY posi ES Ert RE ener 6 3 6 1 4 ORIGINAL SIZE SENSORS LAMP STABILIZER 6 4 6 1 5 EXPOSURE LAMP te eb id 6 5 6 1 6 SCANNER MOTOR entienden nete bes 6 6 GT P SOC ANNE Fr WIRES 0o eus ie eee tre ds ues nean tete ni entree 6 7 DU LASER BIN C eheu aU 6 10 6 2 1 CAUTION DECAL 6 10 6 22 LASER DNI iiti io a M Ms 6 11 6 2 3 POLYGON MIR
12. 13 4 2 21 TRAY SHIFT S en B313 4 2 2 2 HALF TURN DETECTION reo tae B313 5 xii 3 REPLACEMENT AND ADJUSTMENT B313 6 3 1 TRAY COVER REPLACEMENT te pcne sete B313 6 3 1 1 TRAY COVER HEMOVAD s iis iori ipee DERE Ies B313 6 3 1 2 TRAY COVER B313 6 3 2 TRAY MOTOR AND HALF TURN SENSOR REPLACEMENT B313 7 3 2 1 REPLACING THE TRAY MOTOR eee B313 7 3 2 2 REPLACING THE HALF TURN B313 7 FINISHER A681 1 OVERALL MACHINE INFORMATION A681 1 1 1 SPECIFICATIONS dete t Erie t tels neant dede A681 1 1 2 MECHANICAL COMPONENT A681 2 1 8 ELECTRICAL COMPONENT LAYOUT esse A681 3 1 4 ELECTRICAL COMPONENT A681 4 1 5 DRIVE LAYOUT iae ett one A681 6 2 DETAILED DESCRIPTIONS A681 7 2 1 JUNCTION GATE A681 7 Staple MOOG i tau oua Ua us A681 7 No staple MO oie Reo ed uet cei rue i to testate A681 7 2 2 JOGGER UNIT PAPER POSITIONING MECHANISM A681 8 2 3 EXIT GUIDE PLATE OPEN CLOSE MECHANISM A
13. 7 1 7 1 2 SC CODE DESCRIPTIONS 2 cincuenta venae 7 2 5 194 IPU White Level Detection 7 4 SC546 Unstable fusing 7 9 5 620 Communication error between and ADF 7 10 SC760 ADF gate te pia 7 14 SC900 Electrical total counter error 7 14 5 901 Mechanical Total 7 14 5 921 EMB Copier feature expander hardware 7 15 5 980 Program loading 7 15 5 990 Communication error between BICU and IOB 7 15 5 999 Program version 7 15 7 2 PAPER FEED TROUBLESHOOTING 7 16 T S SKEWED IMAGE 252 5 0 DELE LU ERR AR Gn ORE REOR ANNA 7 17 TA TONER DENSIT Y tst epa e anactat EA EE Eaa 7 18 7 4 1 ADJUST THE TONER DENSITY 7 18 If the toner density is too 1 7 18 If the toner density is too 7 18 7 4 2 DIRTY BACKGROUND ie sip ibo a LA GU DELES 7 18 7 5 ELECTRICAL COMPONENT DEFECTS eerie eee n 7 19 PDA SENSORS zi Esta ER MR DER nU 7
14. Strength 30 Binary Sub 50 95 MTF Strength 31 Text Binary Sub 96 125 P MTF Strength 32 Text Binary Sub 126 159 P MTF Strength 4 916 33 Binary Sub 160 200 P MTF Strength 34 Text Binary Sub 201 MTF Strength 35 Binary Main 125 49 P MTF Strength 36 Binary Main 50 89 P MTF Strength 37 Binary Main 90 95 MTF Strength 38 Binary Main 96 125 P MTF Strength 39 Binary Main 126 159 P MTF Strength 40 T P Binary Main 160 200 P MTF Strength 41 T P Binary Main 201 eo 2 N N 2 DN o o o o o o o o o o o i 2 2 2 2 2 2 2 2 N 2 N 4 33 SERVICE PROGRAM MODE Mode No Class MN P MTF Strength T P Binary Sub 1 Strength T P Binary Sub E 8996 P MTF Strength T P Binary Sub 95 P MTF Strength 4 916 T P Binary Sub 55 125 P MTF Strength T P Binary Sub 159 P MTF Strength Binary Sub 60956 20095 P MTF Strength Binary Sub pps P independent Dot Erase Text Grayscale P Independent Dot Erase Text Photo Independent Dot ES Text Binary P Independent Dot Erase Text Photo Binary 4 917 20 September 19
15. Turn counterclockwise A A267R013 WMF A267R510 WMF 1 Check whether the trimming area pattern SP5 902 No 10 is printed as a parallelogram as shown If it is do the following Remove the laser unit A see Laser Unit Remove the bracket B 2 screws Install the adjusting cam C P N A2309003 Secure the adjustment bracket D P N A2679002 using the screw which was used for bracket B However do not tighten the screws at this time 6 Adjusts the laser unit position by turning the adjusting cam Refer to the above illustration for the relationship between the image and the cam rotation direction vci 5 Er es on os ay og E 7 Tighten the adjustment bracket Print the trimming area pattern to check the image If it is still unsatisfactory repeat steps 4 to 8 COPY ADJUSTMENTS PRINTING SCANNING 20 September 1999 6 8 2 SCANNING NOTE 1 Before doing the following scanner adjustments perform or check the printing registration side to side adjustment and the blank margin adjustment 2 Use an OS AS test chart to perform the following adjustments Registration Platen Mode 1 Place the test chart on the exposure glass and make a copy from one of the feed stations 2 Check the leading edge and side to side registration and adjust them using the following SP modes if necessary SP mode Leading Edge SP4 010 Side to side SP4 01
16. oo an e The user can select the modes that best suit their original with the following user tools Greyscale Binary Picture UP mode 2 Copier 1 General Features 08 Image Mode Select Original Type UP mode 2 Copier 1 General Features 09 Image Mode Adjustment select text text photo or photo at the operation panel then select the sub type with this UP mode For details of the SP modes that can be used to adjust the image quality for all the original modes see the SP Modes for Each Image Processing Step section 2 9 IMAGE PROCESSING 20 September 1999 pus Mode Targeted Original Type Normal Mode Text Normal Normal text originals Binary Picture Sharp Newspaper originals through which Processing the rear side is visible Service mode Default Printouts from dot matrix printers Text Photo Photo priority Text photo originals which contain mainly photo areas Text priority Text photo originals which contain mainly text areas Service mode Default Colored originals with blue or green text or background Photo Coarse print Coarse grained printed originals with no text Press print Fine grained printed originals with no text Glossy photo Glossy photos Service mode Default Fine grained printed originals with no text Enhanced Mode Text Pale Originals with low contrast text Grayscale such as written by a pencil
17. MI NESCIO DEMNM 4 1 41 1 PCU PHOTOCONDUCTOR 4 1 4 1 2 TRANSFER ROLLER UNIT 4 1 451223 ho aora Ono mca A 4 1 4 14 LASER UNIT ORE EE MED D RU 4 2 4 2 A te PAPER FEED Der 4 2 417 te nee eee eee ree stt af etur accus 4 2 4 2 SERVICE PROGRAM MODE rs dedo eren p test n rope euet 4 3 4 2 1 SERVICE PROGRAM MODE 4 3 Service Program Access 4 3 Accessing Copy Mode from within an SP Mode 4 4 How to Select the Program 4 4 To input a value or setting for an SP 4 4 4 2 2 SERVICE PROGRAM MODE 4 5 4 2 3 TEST PATTERN PRINTING SP4 417 AND SP5 902 4 60 4 2 4 INPUT CHECK SP5 803 curn pent ce Cereri 4 61 Input Check bee bie a Seco M Ht 4 61 4 2 5 OUTPUT CHECK 5 5 804 4 66 Output Check Table contenido Ete teed ee 4 66 4 2 6 COPY JAM HISTORY DISPLAY 5 7 903
18. B3131102 WMF B NCAUTION Unplug the copier power cord before starting the following procedure 1 Remove all tapes 2 Remove the plate A 1 screw 3 Install the large paper guide B and two small paper guides C as shown 20 September 1999 SHIFT TRAY B D 5 5 N B3131103 WMF Install the stepped screw A Install the shift tray unit B as shown NOTE 1 Set the shift tray on the stepped screw 2 The shift tray must be installed under the paper guide C installed in step 3 6 Connect the cable D to the copier 7 Turnon the main power switch Then select the shift tray using the UP mode 2 Copier 3 Input Output 6 Sort Shift Sort 8 Check the shift tray operation BY PASS FEED UNIT INSTALLATION 20 September 1999 3 9 BY PASS FEED UNIT INSTALLATION 3 9 1 COMPONENTS CHECK Check the quantity and condition of the components against the following list No Description Q ty 1 By pass Tray Unit 1 2 Unit Holder 1 3 Tapping Screw 2 A8991101 WMF 3 9 2 INSTALLATION PROCEDURE A8991102 WMF NCAUTION Unplug the copier power cord before starting the following procedure 1 Remove all tapes 2 Remove the entrance cover A 2 screws and two screws B 3 28 20 September 1999 BY PASS FEED UNIT INSTALLATION 5 5 N A8991105 WMF A8991104 WMF 3
19. deest ens Don D Qua deep Qu on prius 2 33 2 DRIVE uva aos dada NS an M nd 2 34 2 4 3 INEWPPOUDETEGTION s es 2 35 O DRUM OHAR CE Der NE Due pe Evers Depp RP EMEN 2 36 2 5 OVERVIEW 2 36 2 5 1 CHARGE ROLLER VOLTAGE CORRECTION 2 37 Correction for Environmental 2 37 2 5 2 ID SENSOR PATTERN PRODUCTION TIMING 2 38 2 5 3 DRUM CHARGE ROLLER CLEANING 2 39 25 oe teres 2 40 26 1 eizidlug ec PEE 2 40 2 5 IDBIVB desti p Pee d ea dtr ngu e etse 2 41 2 63 DEVELOPER MIXING DO 2 42 2 6 4 DEVELOPMENT BIS UR TERDUM CUN 2 43 2 6 5 TONER SUPPLY iet pna es GREEN 2 44 Toner bottle replenishment 2 44 Toner supply 2 45 2 6 6 TONER DENSITY CONTROL sese 2 46 CME VN WW od aetate Lia enel Cod 2 46 Toner density sensor initial 2 48 Toner density
20. 321 3 SC392 is displayed see note Image Density Density IOB played The paper overflow message is not Open displayed when the paper overfull Paper Over 92429 condition exist Flow IOB Shorted The paper overflow message is displayed Open The Paper Jam indicator will light 324 2 P whenever a copy is made Paper Exit RENT IOB The Paper Jam indicator lights even if Shorted there is no paper Open open me ERES RN Jam indicator will light 306 5 ERES RN a copy 5 made Shorted there is no paper 7 19 Trouble shooting ELECTRICAL COMPONENT DEFECTS 20 September 1999 Component 27 Symbol Condition Symptom The Paper Jam indicator will light 307 A5 n whenever a copy is made Lower Relay IOB The Paper Jam indicator lights even if Shorted there is no paper The Paper Jam indicator will light whenever a copy is made PASAN The Paper Jam indicator lights even if Shorted there is no paper 1o PanierLif 305 7 SC501 will be displayed Paper jam will occur during copying 305 10 SC502 will be displayed Sep Paper jam will occur during copying Height 1 IOB near end condition properly Height 2 IOB near end condition properly Height 1 IOB near end condition properly Height 2 IOB near end condition properly NOTE An SC condition occurs only when a new PCU is being installed in the machine During copying if the ID sensor fails the im
21. 3 16 ANTI CONDENSATION HEATER A267R001 WMF A2671304 WMF NCAUTION Unplug the machine power cord before starting the following procedure 1 Remove the rear scale A 3 screws left scale B 2 screws and exposure glass C NOTE When reinstalling the exposure glass make sure that the mark D is positioned at the rear left corner as shown Move the 1st and 2nd scanners to the right Install the cable clamp E Install the anti condensation heater F 2 screws Join the connectors G uh cue 559 79 Attach the cable cover H as shown 20 September 1999 TRAY HEATER 3 17 TRAY HEATER 5 5 N A2651510 WMF D A2651502 WMF NCAUTION Unplug the machine power cord before starting the following procedure Bop due Remove the connector cover A and rear cover B 4 screws Slide out the 1st and 2nd paper trays Pass the connector C through the opening D Install the tray heater assembly E 1 screw TRAY HEATER 20 September 1999 A2651513 WMF Remove the 2nd paper lift motor A 2 screws 1 connector Route the heater cable B to the side of rivet C and under bracket D Clamp the heater cable B as shown Joint the heater cable and the ac cable E Reinstall the paper lift motor A and reassemble the machine ode P 20 September 1999 TRAY HEATER OPTIONAL PAPER TRAY UNIT 3 18 TRA
22. NVRAM to the defaults except for the following e Electrical total counter value SP7 003 e Machine serial number SP5 811 e Plug amp Play brand name and production name setting SP5 907 e Some SBU settings SP4 904 3 SP4 904 4 SP4 906 SP4 909 Language UK TW Priority SP5 916 Asia and Taiwan version only Normally this SP mode should not be used This procedure is necessary only after replacing the NVRAM or when the copier malfunctions because the NVRAM is damaged Using a Flash Memory Card 1 2 Upload the NVRAM data to a flash memory card see NVRAM Data Upload Print out all SMC data lists SP mode 5 992 NOTE Be sure to print out all the lists If the NVRAM data upload was not completed it is necessary to change the SP mode settings by hand Access SP mode 5 801 Hold the Original Type key and the or key at the same time If the operation was successful the beeper will sound 5 times If it failed the beeper will sound only twice 5 Turn the main switch off and back 6 Download the NVRAM data from a flash memory card see NVRAM Data Download Without Using a Flash Memory Card If there is no flash memory card follow the steps below 1 2 3 Print out all SMC Data Lists SP mode 5 992 Access SP mode 5 801 Hold the Original Type key and the or key at the same time If the operation was successful the beeper will sound 5 times If
23. Overview BICU Memory Controller DRAM A265D503 WMF The image data from the SBU goes to the IPU Image Processing Unit IC on the BICU board which carries out the following processes on the image data 9 Qoo Ss OXON qu m Auto shading Scanner gamma correction Filtering MTF and smoothing Magnification ID gamma correction Grayscale processing Binary picture processing Error diffusion Dithering 10 Video path control 11 Test pattern generation The image data then goes to the LD driver LDD 2 8 20 September 1999 IMAGE PROCESSING Image Processing Modes The user can select text text photo and photo original types as usual However each of these original types has a range of different choices such as sharp text glossy photo etc these are listed in the table on the following page Notice that there is a Service Mode for each of the text text photo and photo original modes This is a customizable mode with a range of SP modes that can be adjusted to meet user requirements that are not covered by the other original modes In addition there are two main image processing modes grayscale processing mode called Enhanced Mode on the display and binary picture processing mode called Normal Mode on the display Either of these can be selected for each original type a
24. Stinger C Memory 32 or 64 MB Optional G688 Stinger C Scanner Scanner Controller Optional 1 6 A844 20 September 1999 MACHINE CONFIGURATION 1 2 2 INSTALLABLE OPTION TABLE Copier options c o Russian C1A C1B z E Option Note ARDF Optional Platen Cover Optional Paper Tray Unit 2 tray Optional LCT Optional Install either no Install either no Install either no Install either no Requires no 9 Install either no Requires no 9 1 bin Tray Optional Shift Tray Optional Duplex Unit Optional By pass Tray Optional Interchange Unit Optional Bridge Unit Optional NID A AIO N gt 1 O O O O No 10 requires 11 Install either no 6 or 10 1000 sheet Finisher Optional Requires no 10 12 and either no 3 4 Memory 48 MB Optional Key Counter Bracket Co Available Requires another option Fax and printer options All options for the fax and printer units are available when these units have been installed Scanner option When the scanner option is installed the printer option must be installed 1 7 PAPER PATH 20 September 1999 1 3 PAPER PATH s
25. Toner supply amount Varies Toner end detection Mode Performed Sensor control 2 SP2 921 1 For designer s use only do not use in the field Toner supply decision Toner control process Compare Vt with a reference voltage Vts This toner control process is the same as sensor control 1 mode However the reference voltage used is always Vts Toner supply amount Varies Toner end detection Mode Performed Fixed control 1 SP2 921 2 For designer s use only do not use in the field Toner supply decision Compare Vt with a reference voltage Vts or Vref Toner control process This toner control process is the same as sensor control 1 mode Toner supply amount Fixed SP2 925 Toner end detection Mode Performed Fixed control 2 SP2 921 3 Use temporarily if the TD sensor needs to be replaced Toner supply decision None Toner control process Toner is supplied every printed page regardless of Vt Toner supply amount Fixed SP2 925 Toner end detection Not performed 2 47 DEVELOPMENT 20 September 1999 Toner density sensor initial setting The TD sensor initial setting procedure is performed automatically when the new PCU is installed in the machine During TD sensor initial setting the TD sensor is set so that the TD sensor output to the value of SP2 926 default 2 3V This value will be used as the
26. e A860D110 WMF A860D109 WMF Side Fences If the tray is full of paper and it is pushed in strongly the fences may deform or bend This may cause the paper to skew or the side to side registration to be incorrect To correct this each side fence has a stopper A attached to it Each side fence can be secured with a screw B for customers who do not want to change the paper size End Fence As the amount of paper in the tray decreases the bottom plate C lifts up gradually The end fence D is connected to the bottom plate When the tray bottom plate rises the end fence moves forward and pushes the back of the paper stack to keep it squared up PAPER FEED 20 September 1999 2 8 11 PAPER REGISTRATION A B A267D702 WMF A267D704 WMF The drive from the main motor A is transmitted to the registration roller through the registration clutch gear B The registration sensor C is used for correcting paper skew and for detecting paper misfeeds The cleaning pad D contacts the registration roller It removes paper dust from the registration roller so that this dust will not transfer into the development unit through the drum cleaning unit The amount of paper buckle at the registration roller to correct skew can be adjusted with SP 1 003 If jams frequently occur after registration the paper feed clutch can be re energized so that the feed roller can assist the registration roller to
27. N 8 N ui desc Gg a 10 A267D701 WMF 13 12 11 There are two paper trays each of which can hold 500 sheets The paper tray feed stations use a friction pad system The two relay sensors are used for paper jam detection The components of the paper feed station are as follows 1 Paper Lift Sensor 8 Upper Relay Roller 2 Paper Height 1 Sensor 9 Lower Relay Roller Paper Height 2 Sensor 10 Special Paper Sensor 4 Paper End Sensor 11 Lower Relay Sensor 5 Paper Feed Roller 12 Friction Pad 6 Paper Size Sensor 13 Tray Heater Option 7 Upper Relay Sensor 20 September 1999 PAPER FEED 2 8 2 PAPER FEED DRIVE MECHANISM A D lt lt QUAS B A oo an e VED Y d D yy C HRS p OS A267D702 WMF The main motor A drives the pick up and feed mechanism of both the first and second paper trays The paper feed clutches B transfer drive from this motor to the paper feed rollers C When the paper feed clutch turns on the feed rollers start to feed the paper The paper feed clutch stays on until shortly after the registration sensor D has been activated PAPER FEED 20 September 1999 2 8 3 PAPER FEED AND SEPARATION MECHANISM A C A860D104 WMF The paper feed roller A drives the top sheet of paper from the pap
28. Paper Tray Duplex 6 C the ADF Copy Counter Mag Displays the total number of copies by 25 49 reproduction ratio and magnification Copy Counter Mag 50 99 Copy Counter Mag Full Size Copy Counter Mag 101 200 Copy Counter Mag 201 400 Copy Counter Mag Direct Mag Copy Counter Mag Direct Size Mag 8 Copy Counter Mag Size Mag Copy Counter Mag Fiex Mag Copy Counter Displays the total number of copies by Image Edit image editing mode All Modes No 2 4 5 7 and 9 are for the Japanese Copy Counter version only Image Edit Mirror Copy Counter Image Edit Posi Nega Copy Counter 7 303 Image Edit Shard Copy Counter Image Edit Outline Copy Counter Image Edit Image Repeat Copy Counter Image Edit Double Copy 4 53 SERVICE PROGRAM MODE 20 September 1999 Mode No Copy Counter Displays the total number of copies by Image Edit image editing mode Overlay No 2 4 5 7 and 9 are for the Japanese Copy Counter version only Image Edit Shard Pattern Copy Counter Displays the total number of copies by copy Copy Mode Text mode Copy Counter Copy Mode Text Photo Copy Counter Copy Mode Photo Copy Counter Copy Mode Duplex Copy Counter Copy Mode Double Sided Original Copy Counter Copy Mode Combine Copy Counter Copy Mode Series Copy Copy Count
29. Paper not detected Paper detected Paper end sensor optional bypass tray Paper not detected Paper detected Paper size sensor sensor optional bypass tray See able 2 Not used Special paper switch Off On Upper paper end sensor Paper not detected Paper detected Lower paper end sensor Upper paper size switch Paper not detected See Paper detected able 1 Lower paper size switch SeeT able 1 1st paper height sensors See able 3 2nd paper height sensors See able 3 Upper paper end sensor or right tray end sensor for the LCT Optional paper tray unit or LCT Lower paper end sensor Optional paper tray unit Paper not detected Paper not detected Paper detected Paper detected Upper paper size switch Optional paper tray unit or LCT See Table 1 for paper tray unit 01 A4 02 LT for LCT there is sen SOr Lower paper size switch Optional paper tray unit See able 1 Upper paper height sensor Optional paper tray unit or LCT See able 3 Lower paper height sensor Optional paper tray unit See able 3 Upper paper lift limit sensor Optional paper tray unit or LCT Paper not at correct height Paper at correct height Lower limit sensor Optional LCT Tray is not down Tray is down Rear fence H P sensor Optional LCT Not home p
30. Scanner drive motor defective Scanner home position sensor connector defective Scanner drive motor connector defective IOB board defective 7 2 20 September 1999 SERVICE CALL CONDITIONS SC122 Scanner home position error Definition B The scanner home position sensor detects the on condition while the scanner is returning to the home position Possible causes Scanner home position sensor defective Scanner drive motor defective Scanner home position sensor connector defective Scanner drive motor connector defective IOB board defective SC123 Scanner home position error 4 Definition B The scanner home position sensor does not detect the on condition after the scanner returns to the home position Possible causes Scanner home position sensor defective Scanner drive motor defective Scanner home position sensor connector defective Scanner drive motor connector defective IOB board defective SC192 Automatic SBU adjustment error Definition B An error is detected during automatic SBU adjustment SP4 903 Possible causes SBU defective BICU board defective Exposure lamp stabilizer defective Exposure lamp defective Dirty white plate og ase 30 22 7 3 SERVICE CALL CONDITIONS 20 September 1999 3 194 IPU White Level Detection Error Definition B The level of the white standard pattern detected by the IPU chip on the BICU board is too low Possible Causes
31. See Copy Adjustments SCANNER UNIT 20 September 1999 6 1 4 ORIGINAL SIZE SENSORS LAMP STABILIZER SIUE SD MN os A267R004 WMF Remove the exposure glass See Exposure Glass Remove the lens cover See Lens Block Remove the lamp stabilizer A 2 connectors Remove the original width sensor B 1 screw 1 connector Remove the lens block See Lens Block Assembly Remove the original length sensors C 1 screw 1 connector each 20 September 1999 SCANNER UNIT 6 1 5 EXPOSURE LAMP A267R515 WMF A267R008 WMF A267R009 WMF 1 Remove the exposure glass See Exposure Glass Sa aaa 5 Er es on os ay og 2 Remove the operation panel rear cover and left cover See Scanner Exterior Operation Panel 3 Remove the connector cover A disconnect the cable and remove the rear cover B 4 screws Remove the left upper stay C 1 screw Remove the front frame D 5 screws Remove the rear bracket E 5 screws 2 connectors Remove the rear frame F 2 screws 1 connector os Push down the G then slide out the exposure lamp 1 connector NOTE 1 Do not touch the glass surface of the exposure lamp with bare hands 2 After installing the lamp the part G must be returned to the original position 6 5 SCANNER UNIT 20 September 1999 6 1 6 SCANNER MOTOR A267R007 WMF A267R014 WMF 1 Remove the connect
32. Service Mode original type setting text See Detailed Descriptions Image 1 Linear Processing for details Normally do not change the value Selects the ID gamma curve for error 0 ch diffusion Text This adjustment is only effective for the normal Service Mode original type setting 1 ms See Detailed Descriptions Image Text Processing for details Priority Normally do not change the value 2 msp Photo Tables Glossy Photo 4 Linear 4 41 SERVICE PROGRAM MODE 20 September 1999 SS Mmm ate ID Gamma Selects the ID gamma curve for dithering 5 105 Adjustment This adjustment is only effective for the Coarse Photo Grayscale Service Mode original type setting Print See Detailed Descriptions Image 6 143 Processing for details Press Normally do not change the value Print P ID Gamma 0 B amp W Adjustment This adjustment is only effective for the Sharp text Text Binary Service Mode original type setting 1 Linear See Detailed Descriptions Image Normal Processing for details text Normally do not change the value P ID Gamma Selects the ID gamma curve for error Adjustment diffusion Text Photo Binary This adjustment is only effective for the Service Mode original type setting See Detailed Descriptions Image Processing for details Normally do not change the value Glossy Photo P ID Gamma Selects the ID ga
33. defective 5 999 Program version error Definition B An incorrect type of main software was downloaded Possible Causes The main software for another machine was downloaded to this machine og Qs 30 22 7 15 PAPER FEED TROUBLESHOOTING 7 2 PAPER FEED TROUBLESHOOTING When paper double feed or paper non feed problem occurs fix the problem in accordance with the following flow chart 20 September 1999 Paper Feed Problem Double Feed Yes Small Paper Size A5 HLT Reduce the bottom plate Reduce the bottom plate pressure for small paper size pressure for normal paper size Note If the feed problem always occurs at a certain point before near end change the remaining paper threshold with SP 1 908 6 1 909 6 1 910 6 and or 1 911 6 Change the value of the following SP mode to a larger number SP No 1 908 2 1 909 2 1 910 2 1 911 2 Change the value of the following SP mode to a larger number SP No 1 908 1 1 909 1 1 910 1 1 911 1 Tray 1st Tray 2nd Tray 3rd Tray 4th Tray Tray 1st Tray 2nd Tray 3rd Tray 4th Tray Feed problem Yes occurs at paper near end Note Small Paper Size A5 HLT Apply the bottom plate pressure for normal paper size Apply the bottom plate pressure for small paper size Change the value of the following SP mode to a smaller number Change the value
34. press down the Original Type key and the or 8 key at the same time to reset the counters If the reset was successful the beeper will sound 5 times If it failed the beeper will sound only twice Resets the counters except for the total counter SP7 003 and the timer counter SP7 991 After selecting 1 press down the Original Type key and the or 8 key at the same time to reset the counters If the reset was successful the beeper will sound 5 times If it failed the beeper will sound only twice Resets the key operator code 0 After selecting 1 press down the Original Type key and the or 8 key at the same time to reset the counters If the reset was successful the beeper will sound 5 times If it failed the beeper will sound only twice Resets the electrical total counter 0 Usually this SP mode is done at installation This SP mode is effective only once when the counter has a negative value After selecting 1 press down the Original Type key and the OK or key at the same time to reset the counters If the reset was successful the beeper will sound 5 times If it failed the beeper will sound only twice 7 901 SC History Display Displays the last twenty SC codes that have 0 No occurred 1 Yes 4 57 SERVICE PROGRAM MODE 20 September 1999 SC History Clear Resets the SC history After selecting 1 press down the Original Type key and t
35. 0 9 0 0 1 mm step 1 0 mm 0 9 0 0 1 mm step 1 0 mm 0 9 0 0 1 mm step 1 0 mm 0 9 0 0 1 mm step 1 0 mm 3 0 6 0 0 1 mm step 0 0 mm Tables 3 0 6 0 0 1 mm step 0 0 mm 0 9 0 9 0 1 step 0 0 0 No Not detected 1 Yes A5 lengthwise SERVICE PROGRAM MODE Image Mode Selection IPU Image Data Path IPU SBU Test Pattern Exposure Lamp ON 20 September 1999 Selects whether the binary processing is always used in Positive Negative mode 0 The machine uses the process selected by the user with user tools 1 The machine always uses binary picture processing greyscale processing is disabled Selects one of the following video data outputs which will be used for printing 0 Normal video processing After auto shading processing After magnification processing F After MTF processing G After gamma correction 5 T Data straight through no video processing Donotchangethevalue Prints test patterns from the IPU or SBU video data outputs 1 13 IPU 14 16 SBU No Print Vertical Line 1 dot Horizontal Line 1 dot Vertical Line 2 dot Horizontal Line 2 dot Alternating Dot Pattern Grid Pattern 1 dot Vertical Bands Grayscale Horizontal Grayscale Vertical 10 Patch Pattern 11 Cross Pattern 12 Slant Pattern 13 Trimming Area 14 Vertical Line 2 dot 15 Grid Pattern 2 dot 16 16 grayscale
36. 2 10 6 FUSING TEMPERATURE 2 74 Temperature Control edet 2 74 Eusind 2 75 2 10 7 OVERHEHEAT PROTEGTIOJD s a dps 2 76 2 10 98 PAPER EXI a 2 76 2 11 ENERGY SAVER MODES RD S 2 77 2 11 T OVERVIEW ach auda nettes ati dati dle ue vi 2 77 2 11 2 ENERGY SAVER MODE 2 78 Entering the energy saver 2 78 What happens in energy saver 2 78 Return to stand by mode oe e o EUM apa edet uetus 2 78 2 11 3 LOW POWER MODE 5 5 sto 2 79 Entering the low power 2 79 What happens in low power 2 79 Return to stand by ITiodB s oo 2 79 2 11 4 2 80 Entering auto off 0 2 80 What happens in auto off 2 80 Returning to stand by Mode eus 2 80 Disabling auto off mode 2 80 2 11 5 NIGHT MODE oriri Pr Ros ebeb eyes 2 81 Entering night stand by and night 2 81 What happens in night stand by and night modes 2 81
37. 7 7 001 LEO Time rotation time Total Original Displays the total number of scanned Counter All Modes originals all modes 7 002 Total Original Displays the total number of scanned Counter Copier originals copy mode only Total Original Displays the total number of scanned Counter Fax originals fax mode only Displays the total number of prints all All Modes modes Displays the total number of prints copier 7 003 Copier mode Displays the total number of prints fax Fax mode Displays the total number of prints printer Printer mode CE Counter Setting This SP mode is effective only when the CSS board is installed Do not change the value Copy Counter Displays the total number of copies by paper Paper Size A3 size Copy Counter Paper Size B4 Copy Counter z Paper Size A4 Copy Counter Paper Size B5 Copy Counter Paper Size DLT Copy Counter Paper Size LG 7 Copy Counter Paper Size LT Copy Counter Paper Size HLT Copy Counter Paper Size Others O originals Paper Tray 1st each paper feed station 4 52 20 September 1999 SERVICE PROGRAM MODE Mode No Class Class D nc Copy Counter Displays the total number of copies fed from Paper Tray 2nd each paper feed station Copy Counter Paper Tray 3rd Counter rae Tray 4th Copy Counter 5 pass Copy Counter
38. 76 P MTF Coefficient T P Grayscale Main 77 154 P MTF Coefficient T P Grayscale Main 155 256 P MTF Coefficient T P Grayscale Main 257 P MTF Coefficient T P Grayscale Sub pe 57 P MTF Coefficient T P Grayscale Sub ee 65 P MTF Coefficient T P Grayscale Sub 5 76 P MTF Coefficient T P Grayscale Sub EA 154 P MTF Coefficient T P Grayscale Sub 55 256 P MTF Coefficient T P Grayscale Sub 257 SERVICE PROGRAM MODE This adjustment is only effective for the Service Mode original type setting Selects the MTF filter coefficient in the grayscale processing mode See Detailed Descriptions Image Processing for details T P Text Photo Tables 4 29 SERVICE PROGRAM MODE Mode No Class EC MR 1and2 id D P MTF ecu Text Binary Main P MTF Coefficient Text Binary Main m 95 P MTF Coefficient Text Binary Main a 12596 P MTF Coefficient Text Binary Main pes 159 P MTF Coefficient Text Binary Main 60 200 P MTF Coefficient Text Binary Main BO P TE Coefficient Text Binary Sub 51 P MTF Coefficient Text Binary Sub 5 95 P MTF Coefficient Text Binary Sub 196 125 P MTF Coefficient Text Binary Sub us 159 P MTF Coefficient Text Binary Sub 60 200 P MTF Coefficient Text Binary Sub TE Coefficient T P Binary
39. C 3 11 PAPER TRAY UNIT INSTALLATION 20 September 1999 C A C B A8601604 WMF A8601600 WMF 3 Remove the connector cover A 1 screw 4 Connect the cable B to the copier as shown 5 Attach a securing bracket C to each side of the paper tray unit as shown 1 screw each 6 Re install the connector cover Remove the 2nd paper tray D and secure the paper tray unit with two screws E 3 12 20 September 1999 PAPER TRAY UNIT INSTALLATION A8601602 WMF Installation A8601002 WMF 8 Reinstall the 2nd paper tray and attach the appropriate paper tray number decal A to the paper tray NOTE The paper tray number decal is in the accessory box for the main copier 9 Rotate the adjuster B until the machine cannot be pushed across the floor 10 Load paper into the paper trays and select the proper paper size 11 Turn on the main switch 12 Check the machine s operation and copy quality 3 13 LCT INSTALLATION 20 September 1999 3 4 LCT INSTALLATION 3 4 1 ACCESSORY CHECK Check the quantity and condition of the accessories against the following list No Description Q ty 1 Securing Bracket 2 2 Screw 4 10 4 3 Paper Size Decal 1 A8621500 WMF A8621505 WMF NCAUTION Unplug the machine power cord before starting the following procedure 1 Remove the strips of tape 2 Setthe copier A
40. Code Paper Size Code Paper Size 05 4 sideways 86 A5 lengthwise 06 A5 sideways 87 A6 lengthwise 07 A6 sideways 8D B4 OE B5 sideways 8E B5 lengthwise OF B6 sideways 8F B6 lengthwise 11 Return post card sideways 91 Return post card lengthwise 12 Post card sideways 92 Post card lengthwise 24 8 5 x 14 sideways AO 11 x 17 26 8 5 x 11 sideways A4 8 5 x 14 lengthwise 2C 8 5 x 5 5 sideways A6 8 5 x 11 lengthwise 84 A3 AC 8 5 x 5 5 lengthwise 85 A4 lengthwise APPENDIX 5 OTHERS 30 November 1999 1 5 OTHERS 1 5 1 SC630 RDS COMMUNICATION ERROR Frequent occurrence of SC630 indicates a problem in the customer s communication line or line adapter To maintain the communications environment in good working order it is necessary to contact planned inspections periodically 1 5 2 PM PROCEDURE OR OTHER MAINTENANCE Before beginning PM or other maintenance procedures SP5 817 1 should be set to 1 This will disable the RDS function When maintenance is completed SP5 817 2 should be set to 1 This will re enable the RDS function NOTE The RDS function will remain disabled for four hours Therefore if maintenance for longer than four hours is required SP5 817 1 should be set to 1 again to disable RDS APPENDIX 6
41. Install the Bridge Unit i Does the user require the Duplex Unit or 1 bin Tray Unit Yes No Install the Interchange Unit i Install the 1 bin Tray Unit Install the Duplex Unit i Install the Finisher Install the ARDF or Platen Cover required E 5 4 4 4 4 A2651512 WMF 3 5 COPIER INSTALLATION 20 September 1999 3 2 3 ACCESSORY CHECK Check the quantity and condition of the accessories in the box against the following list No Description Q ty 1 Paper Tray Decal 1 2 Model Name Decal 15 and 22 machine 1 3 NECR 1 4 End Fence 1 5 Operating Instructions System Setting 1 6 Operating Instructions Copy Reference 1 7 Operating Instructions Copy Quick Guide 1 3 6 20 September 1999 COPIER INSTALLATION 3 2 4 INSTALLATION PROCEDURE e 15 5 S o A A2671502 WMF A2671501 WMF NCAUTION Unplug the machine power cord before starting the following procedure If the optional paper tray or the optional LCT is going to be installed now put the copier on the paper tray unit or the LCT first then install these options then install the copier NOTE Keep the shipping retainers after installing the machine They will be re
42. Processing Normal Normal text originals Generation Copied originals Service mode Default Printouts from dot matrix printers Text Photo Text priority Text photo originals which contain mainly text areas Normal Text photo originals Photo priority Text photo originals which contain mainly photo areas Service mode Default Colored originals with blue or green text or background Photo Press print Fine grained printed originals with no text Normal Normal photos Glossy Photo Glossy photos Service mode Default Normal photos 2 10 20 September 1999 IMAGE PROCESSING Image Processing Path Overview This diagram shows the various stages of the image process and where they are done Image Correction ADS N 2 ie 59 a Image Correction ADS Auto Shading White Black Line Erase Correction Scanner Gamma Correction Small Smoothing Filter Magnification Main Scan T Filtering MTF Smoothing Independent Dot Erase ID Gamma Correction Gradation Error Diffusion Dithering Binary Picture Processing Grayscale Processing Others Independent Dot Erase Line Width Correction Printer Gamma Correction 12 1 vov d Optional Fax Unit Optional Scanner Controller 54524 Binary Pi
43. all connectors 6 screws 1 clip 20 September 1999 COPY ADJUSTMENTS PRINTING SCANNING 6 8 COPY ADJUSTMENTS PRINTING SCANNING NOTE 1 You need to perform these adjustment s after replacing any of the following parts Scanner Wire Lens Block SBU Assembly Scanner Drive Motor Polygon Mirror Motor Paper Side Fence Memory All Clear 2 For more details about accessing SP modes refer to section 4 6 8 1 PRINTING NOTE 1 Make sure the paper is installed correctly in each paper tray before you start these adjustments 2 Use the Trimming Area Pattern SP5 902 3 No 10 to print the test pattern for the following procedures 3 Set SP 5 902 3 to 0 again after completing these printing adjustments Registration Leading Edge Side to Side 1 Check the leading edge registration for each paper feed station and adjust them using SP1 001 2 Check the side to side registration for each paper feed station and adjust them using SP1 002 B SP mode Specification 5 SP1 001 1 A a By pass feed SP1 001 2 3 2 lt Duplex SP1 001 3 1st paper feed SP1 002 1 2nd paper feed SP1 002 2 3rd paper feed Optional 4 en SP1 002 3 2 15 4th paper feed Optional PFU tray 2 SP1 002 4 A267R508 WMF By pass feed SP1 002 5 Duplex SP1 002 6 A Leading Edge Registration B Side to side Registration 6 35 COPY ADJUSTMENTS PRINTING SCANNIN
44. e Exposure lamp defective BICU board defective Incorrect position of the white standard pattern Dirty white plate SBU board defective SC302 Charge roller current leak Definition B A charge roller current leak signal is detected Possible causes e Charge roller damaged e Charge high voltage supply board defective Poor connection of the PCU SC320 Polygon motor error Definition B The polygon motor does not reach its operating speed within 10 seconds after the polygon motor on signal or the lock signal is not detected for more than 200 ms continuously during operation Possible causes e Polygon mirror motor defective e Poor connection between the polygon mirror motor driver and the BICU board BICU board defective SC321 No laser writing signal F GATE error Definition B The laser writing signal F GATE is still not LOW when the laser writing area 5 mm has passed since the laser writing start position on the drum Possible Causes BICU board defective e EMB Copier feature expander board defective e The fax controller or printer controller has a poor connection e Fax controller or printer controller defective 7 4 20 September 1999 SERVICE CALL CONDITIONS SC322 Laser synchronization error Definition B The main scan synchronization detector board cannot detect the laser synchronization signal for more than 5 consecutive 100 ms intervals Possible causes Poor connectio
45. on the end of the drum drive shaft stabilizes the rotation speed this prevents banding and jitter from appearing on copies 20 September 1999 PHOTOCONDUCTOR UNIT PCU 2 4 3 NEW PCU DETECTION oo an e A267D206 WMF The new PCU detect switch A detects when a new PCU is installed Each PCU has an actuator B When a new PCU is installed in the machine the actuator B pushes the new PCU detect switch The actuator is a sector gear and this gear engages with the drum gear C When the drum rotates the actuator is released from the drum gear The actuator drops away from the new PCU detect switch and remains in this down position for the duration of the PCU s life The machine recognizes when a new PCU has been installed in the machine because the actuator of the new PCU contacts the new PCU detect switch After the front cover and right cover are closed the machine then performs the TD sensor initial setting procedure automatically for about 45 seconds During this time the drum rotates and the actuator drops away from the sensor Also while the machine performs the TD sensor initial setting the machine makes a ID sensor pattern on the drum This checks whether the developer has fallen into the development unit in other words it checks whether the technician remembered to remove the developer seal from the PCU at machine installation If the machine does not detect the ID sensor
46. x 11 Asterisk 81 2 x 14 ala oo 2 2 lo oo s alo 2o a ol ao s LoOoocOo o 4 64 1 Pushed 20 September 1999 SERVICE PROGRAM MODE Table 2 By pass Paper Size Sensor Number SP Value Paper Size mm inches 01H A3 11 x17 03H 11 x17 02H 4 Lengthwise 81 2 x 11 8 x 13 A5 Lengthwise 51 2 x 81 2 Table 3 Paper Height Sensors SP Value Paper Amount 00H 10096 01H 70 7596 02H Near end 03H 25 30 Table 4 Paper Tray Unit Set Sensor SP Value Unit Installed 00H None 10H LCT 20H Paper tray unit 2 trays 4 65 SERVICE PROGRAM MODE 20 September 1999 4 2 5 OUTPUT CHECK SP5 804 Serviceman P Mode Output Check MIU 0 A250M502 WMF CAUTION To prevent mechanical or electrical damage do not keep an electrical component on for a long time 1 Access SP mode 5 804 2 Select the SP number that corresponds to the component you wish to check see the table below then press OK or the key 3 Press 1 then press OK or the 8 key to check that component To interrupt the test exit the SP mode 5 f you wish to check another component re enter the SP mode Output Check Table NOTE Pull out the tray before performing the output checks from 29 to 32 Number Description 0 Not used 1 Main motor forward 2 Main motor Reverse Do not
47. 1 4 0 2 Sub 5 x Direction 4 Y 8 a Fig A Y 1 E Fig B 1 Fig C A250D554 WMF Usually binary picture processing generates jagged edges on characters as shown in the above illustration These are reduced using edge smoothing The FCI changes the laser pulse duration and position for certain pixels Fig A shows the four possible pulse durations and Fig B shows how the laser pulse can be in one of three positions within the pixel Fig C shows an example of how edge smoothing is used SP2 902 switches FCI smoothing on or off but is only valid for copy mode Printer Gamma Correction Printer correction corrects the data output from the IPU to the laser diode to account for the characteristics of the printer e g the characteristics of the drum laser diode and lenses The machine chooses the most suitable gamma curve for the original type selected by the user There is no SP adjustment for this 2 29 LASER EXPOSURE 20 September 1999 2 3 LASER EXPOSURE 2 3 1 OVERVIEW H A267D101 WMF The optical path from the laser diode to the drum is shown above The LD unit A outputs a laser beam to the polygon mirror B through the cylindrical lens C The shield glass D prevents dust from reaching the polygon mirror Each surface of the polygon mirror reflects one full main scan line The laser beam goes to the F theta mirror E mirror F and BTL bar
48. 18 Grayscale Main 58 65 P MTF Strength T P Grayscale Sub 66 76 P MTF Strength T P Grayscale Sub 77 154 P MTF Strength T P Grayscale Sub 155 256 MTF Strength 22 T P Grayscale Sub 157 P MTF Strength 23 Text Binary Main 125 49 P MTF Strength Text Binary Main 50 95 eo 2 N 1 step 5 1 step 5 N 1 step 4 N 1 step 4 N 1 step 5 N 1 step 4 N 1 step 4 N 1 step 4 N 1 step 4 N 1 step 4 N 1 step 5 N 1 step 4 N 1 step 4 N eo 1 step 4 N 1 step 4 N 1 step 4 0 7 1 step 4 N 4 32 20 September 1999 SERVICE PROGRAM MODE Mode No Class Class 1 and 2 3 P MTF Strength This adjustment is only effective for the 25 Text Binary Main Service Mode original type setting 1 step 96 125 Selects the MTF strength using grayscale 5 P MTF Strength processing mode See Detailed 5 26 Text Binary Main Descriptions Image Processing for details 1 step 126 159 Weak Strong 5 P MTF Strength 1 2 3 4 5 0 x1 6 7 27 Text Binary Main Text Photo 160 200 P MTF Strength 28 Text Binary Main 201 Strength 29 Binary Sub 25 49
49. 19 f 5 2 SWITCHES noms tod d tux mE 7 21 7 6 BLOWN FUSE 7 22 vii OPTIONS ADF A858 1 OVERALL MACHINE INFORMATION A858 1 1 1 SPECIFICATIONS ees eiecit A858 1 1 2 MECHANICAL COMPONENT LAYOUT sese A858 2 1 3 ELECTRICAL COMPONENT LAYOUT sese A858 3 1 4 ELECTRICAL COMPONENT A858 4 858 5 2 DETAILED SECTION DESCRIPTIONS 858 6 2 1 ORIGINAL SIZE DETECTION suction nto beta Cue expen eus A858 6 1 2 PICICUP AND SEPARBATION eee A858 9 1 3 ORIGINAL TRANSPORT AND A858 10 1 3 1 SINGEE SIDED ORIGINALS i ru E RR eot A858 10 1 3 2 DOUBLE SIDED ORIGINALS sese 858 11 1 3 3 ORIGINAL TRAILING EDGE A858 12 fone PRE RON A858 13 1 5 TIMING CHAR TS e A858 14 1 5 1 LT SIDEWAYS SINGLE SIDED ORIGINAL MODE A858 14 1 5 2 LT SIDEWAYS STAMP MODE SINGLE SIDED ORIGINAL MODE A858 15 1 5 3 LT SIDEWAYS DOUBLE SIDED ORIGINAL MODE A858 16 1 5 4 LT SIDEWAYS STAMP MODE DOUBLE SIDED ORIGINAL A858 17 1 6 CONDITION OF JAM A858 18 1 7 O
50. 20 September 1999 Adjusts the toner supply motor on time for sensor supply mode This SP is effective only when SP2 921 is 0 or 1 Increasing this value increases the toner supply motor on time So use a high value if the user tends to make lots of copies that have a high proportion of black Toner Recovery Adjusts the toner supply motor on time Time during recovery from toner near end end This SP is effective only when SP2 921 is 0 1 or 2 Note that toner recovery is done in a 3 second cycle So the input value should be a multiple of 3 e g 3 6 9 See Toner Density Control for more details Toner Supply Rate Adjusts the toner supply rate for fixed toner supply mode This SP is effective only when SP2 921 is 2 or 3 Increasing this value increases the toner supply motor on time So use a high value if the user tends to make lots of copies that have a high proportion of black See Toner Density Control for more details 4 12t 5 16t 6 On continuously 7 05 Standard Vt Adjusts Vts Vt for a new PCU The 0 00 5 00 sensor output is adjusted to this value 0 01 V step 2 926 during the TD sensor initial setting process 2 30 V This SP is effective only when SP2 921 is 0 1 or 2 ID Sensor Control Selects whether the ID sensor is used or not 0 No for toner density control If this value is 0 dirty background may 2 927 occur after the machine has
51. 3rd mirrors and lens C The 1st scanner D consists of the exposure lamp a reflector E and the 1st mirror F A lamp stabilizer energizes the exposure lamp The light reflected by the reflector is of almost equal intensity to reduce shadows on pasted originals An optics anti condensation heater G is available as an option It can be installed on the left side of the scanner It turns on whenever the power cord is plugged in SCANNING 20 September 1999 2 1 2 SCANNER DRIVE G A267D002 WMF E A stepper motor drives the scanner The 1st and 2nd scanners A B are driven by the scanner drive motor C through the timing belt D scanner drive pulley E scanner drive shaft F and two scanner wires G Book mode The scanner drive board controls and operates the scanner drive motor In full size mode the 1st scanner speed is 122 mm s during scanning The 2nd scanner speed is half that of the 1st scanner In reduction or enlargement mode the scanning speed depends on the magnification ratio The returning speed is always the same whether in full size or magnification mode The image length change in the sub scan direction is done by changing the scanner drive motor speed and in the main scan direction it is done by image processing on the BICU board Magnification in the sub scan direction can be adjusted by changing the scanner drive motor speed using SP4 101 Magnification in the main scan direction ca
52. A896 4 15 DRIVE TACUIT LEN EL UM LEE iaaii A896 5 2 DETAILED DESCRIPTIONS A896 6 2 1 tay i oe arie etnia nerd A896 6 Larger than A4 lengthwise LT Lengthwise 896 6 Up to A4 Lengthwise LT A896 7 2 2 FEED IN AND EXIT MECHANISM A896 8 When Paper is Fed Into Duplex 896 8 Inversion and EXIE ue eee ee nite dene une eco tee uito dna A896 8 3 REPLACEMENT AND ADJUSTMENT A896 9 3 1 COVER REMOVAL Dura patrona Mas nds cma FUE FIER A896 9 3 2 ENTRANCE SENSOR REPLACEMENT A896 10 EXIT SENSOR REPEAGCEMENDR T dedo aetate titres A896 11 xi 1 BIN TRAY UNIT A898 1 OVERALL INFORMATION eene A898 1 SPECIFICATIONS 898 1 1 2 MECHANICAL COMPONENT 898 2 1 3 ELECTRICAL COMPONENT LAYOUT eee A898 3 1 4 ELECTRICAL COMPONENT A898 3 2 DETAILED SECTION DESCRIPTIONS A898 4 2 1 BASIC OPERATION iecit nir tired eaa d e AR Yd an n ERR A A898 4 3 REPLACEMENT AND ADJUSTME
53. Buttons 5 to 11 only scroll through numbers 0 to 9 O O O 1st digit 2nd digit 3rd digit 0 4th digit 5th digit digit Oo uU 7th digit 8th digit 9th digit gt 10th digit 11th digit Not used 4 79 SERVICE PROGRAM MODE 20 September 1999 4 2 17 ID SENSOR ERROR ANALYSIS SP2 221 Serviceman P Mode Vsg 4 01V Vsp 1 09 Power 65 Vsg Vsp 2 98V Vt 2 3V A265M510 WMF Even if the ID sensor is defective the machine does not generate an SC condition If the ID sensor is defective the image quality becomes worse e g dirty background on the copy If these conditions occur check the ID sensor output using this SP mode 1 Vsg Error Condition Vsg 2 5V Possible causes D sensor defective ID sensor dirty e Drum does not get charged 2 Vsp Error Condition Vsp 2 5V Possible causes Toner density is very low D sensor pattern is not created 3 Power This is the power for the light source in the ID sensor Error Condition Vsg 3 5V when maximum power 254 is applied Possible causes D sensor defective D sensor dirty Drum does not get charged 4 Vsg Vsp Error Condition Vsg Vsp 1 00V Possible causes D sensor defective Drum dirty 5 Vt Error Condition Vt 4 5V or Vt 0 5V Possible causes e TD sensor defective 20 September 1999 USER TOOLS 4 3 USER TOOLS The User Tools are accessed by users and key operators and by sale
54. COMPONENT DESCRIPTIONS Refer to the electrical component layout on the reverse side of the point to point diagram for the location of the components ELECTRICAL COMPONENT DESCRIPTIONS o Symbol Name Function Motors M1 Scanner Drives the 1st and 2nd scanners M2 Polygonal Mirror Turns the polygonal mirror M3 Main Drives the main unit components M4 Exhaust Fan Removes heat from around the fusing unit M5 Upper Paper Lift Raises the bottom plate in the 1st paper tray M6 Lower Paper Lift Raises the bottom plate in the 2nd paper tray M7 Toner Supply Rotates the toner bottle to supply toner to the development unit Magnetic Clutches MC1 Upper Paper Feed Starts paper feed from the 1st paper tray MC2 Lower Paper Feed Starts paper feed from the 2nd paper tray Upper Relay Drives the upper relay rollers 4 Lower Relay Drives the lower relay rollers 4 Registration Drives the registration rollers Switches Provides power to the machine If this is off there SWN Main is no power supplied to the machine SW2 Right Upper Cover a whether the right upper cover is open or Cuts the 5VLD and 24V dc power line and gt Coger detects whether the right cover is open or not SW4 Right Lower Cover en whether the right lower cover is open or Determines what size of paper is in the upper SW5 Uppe
55. Change to the copy mode display by pressing the lt Interrupt key then print the test pattern 0 1 2 3 4 5 6 7 8 9 Turns on the exposure lamp 0 No Off To turn off the exposure lamp select 0 1 Yes On Checks the difference value of the black 0 255 level for the EVEN channel after adjusting 1 step the black level at power up 40 Do not change the value However after doing a memory all clear SP5 801 use it to re input the previous value 4 26 20 September 1999 4 904 4 905 Adjustment Adjusted EVEN SBU Gain Adjustment Adjusted ODD SBU DC Cont Adjustment EVEN SBU DC Cont Adjustment ODD SBU Ref Value Adjustment Current Value SBU Ref Value Adjustment Loop SBU Offset Value Adjustment EVEN SBU Offset Value Adjustment ODD SERVICE PROGRAM MODE Checks the difference value of the black 0 255 level for the ODD channel after adjusting the 1 step black level at power up 40 Do not change the value However after doing a memory all clear SP5 801 use it to re input the previous value Checks the difference value of the black 0 255 level for the EVEN channel after adjusting 1 step the black level at SBU Auto Adjustment 40 5 4 908 Checks the difference value of the black 0 255 level for the ODD channel after adjusting the 1 step black level at SBU Auto Adjustment SP4 40 908 Do not change the value Adjusts the coefficient o
56. Install the unit holder A using the Allen key 4 set screws NOTE 1 Make sure that the four screws are tightened in the proper order as shown above Otherwise when the optional duplex unit A896 is installed it will not properly lock in place 2 After securing the unit store the Allen key in the inner cover B for future use 4 If the optional duplex unit A896 will be installed Remove the indicated parts C of the by pass tray unit D Install the by pass tray unit 2 screws 1 connector Turn the main power switch on and check the by pass tray function Make a copy from the by pass tray Then check the registration DUPLEX UNIT INSTALLATION 20 September 1999 3 10 DUPLEX UNIT INSTALLATION 3 10 1 ACCESSORY CHECK Check the quantity and condition of the accessories against the following list 2 Description Q ty Duplex Unit Connector Cover Bracket Clip Unit Holder Unit Holder Cover Allen Key fps SS Ss Tapping Screw M3x8 A8961101 WMF A8961102 WMF 3 30 20 September 1999 DUPLEX UNIT INSTALLATION 3 10 2 INSTALLATION PROCEDURE A8961501 WMF A8961500 WMF NCAUTION Unplug the copier power cord before starting the following procedure NOTE Before installing the duplex unit the optional interchange unit B300 must be installed 1 Remove all tapes 2 Remove three covers
57. Main MTF Coefficient T P Binary Main ME 89 P MTF Coefficient T P Binary Main ee 95 P MTF Coefficient T P Binary Main 96 125 20 September 1999 This adjustment is only effective for the Service Mode original type setting Selects the MTF filter coefficient in the binary picture processing mode See Detailed Descriptions Image Processing for details T P Text Photo 4 30 20 September 1999 Mode No Class Class 1and2 3 P MTF Coefficient 39 Binary Main 126 159 P MTF Coefficient 40 T P Binary Main 160 200 P MTF Coefficient 41 T P Binary Main 201 P MTF Coefficient 42 Binary Sub 25 49 P MTF Coefficient 43 Binary Sub 50 89 P MTF Coefficient 44 T P Binary Sub 90 95 P MTF Coefficient 45 Binary Sub 96 125 P MTF Coefficient 46 Binary Sub 126 159 P MTF Coefficient 47 Binary Sub 160 200 P MTF Coefficient 48 T P Binary Sub 201 P MTF Strength 1 Text Grayscale Main 2596 2996 P MTF Strength 2 Grayscale Main 30 76 P MTF Strength 3 Text Grayscale Main 77 154 P MTF Strength Text Grayscale 4 915 Main 155 256 Text Grayscale Main 257 P MTF Strength Text Grayscale Sub 25 29 P MTF Strength 7 Text Grayscale Sub 3096 7696 MTF
58. Modes key until the standby mode display appears 4 3 SERVICE PROGRAM MODE 20 September 1999 Accessing Copy Mode from within an SP Mode 1 Press the 3 Interrupt key 2 Select the appropriate copy mode and make trial copies 3 To return to SP mode press the 3 Interrupt key again How to Select the Program Number Serviceman P Mode SP MODE C2 Select Set Class 2 No 1 Charge Bias Adjustment Cre Bi A265M509 WMF Program numbers are composed of two or three levels To input the required program number select each program level in sequence 1 Select the 1st level program number on the numeric keypad and press the key or OK key NOTE The 1st level program number can be selected by pressing the Prev or Next bottom on the LCD 2 Select the 2nd level program number at the numeric keypad and press the key or OK key NOTE The 2nd level program number can be selected by pressing the Prev or Next bottom on the LCD 3 If there any are 3rd level programs in SP mode first enter the 2nd level SP mode then pressing the Prev or Next bottom on the LCD To input a value or setting for an SP mode 1 Enter the required program mode as explained above 2 Enter the required setting using the numeric keys then press the key or OK key NOTE 1 If you forget to press the key or key the previous value remains 2 Change between and r
59. Optional duplex unit 43 Inverter gate solenoid Optional duplex unit 44 Not used 45 Bridge cooling fan motor Optional bridge unit 46 Bridge unit drive motor Optional bridge unit Junction gate solenoid Optional bridge unit Not used 1 bin tray LED Polygonal mirror motor Polygonal mirror motor and laser diode Laser diode Do not use Junction gate solenoid Optional 1 bin Sorter Not used Duplex unit free run without paper Duplex unit free run with paper Not used DF transport motor Optional ADF DF feed motor Optional ADF DF feed clutch Optional ADF DF pick up solenoid Optional ADF Stamp solenoid Optional ADF DF junction gate solenoid Optional ADF Not used 4 67 SERVICE PROGRAM MODE 20 September 1999 4 2 6 COPY JAM HISTORY DISPLAY SP7 903 After entering the SP mode select 1 and press the OK or key The LCD panel will display the following message 1 10 09 17 36 JamB Feed3 4 138 10 7 8 9 A265M507 WMF 1 Jam history number 6 Jam code see the table below 2 Main motor operating time Date 7 Jam location 3 Hour 8 Paper feed station 4 Minute 9 Paper size 5 Second 10 Total counter value at the jam occurred Jam Code Meaning 001 Jams at power on 010 Paper does not reach the registration sensor from paper tray unit 011 Paper does no
60. Pattern SP4 417 No Print Vertical Lines single dot Horizontal Lines single dot Vertical Lines double dots Horizontal Lines double dots Alternating Dot Pattern Grid Pattern single dot Vertical Stripes Alternating Dot Pattern Grayscales Horizontal Full Dot Pattern Grayscales Vertical Black Band ID Patch Trimming Area Cross Pattern Argyle Pattern Argyle Pattern Grayscales Horizontal Trimming Area Grayscales Vertical Vertical Lines double dots SBU Grayscales Vert Hor Grid Pattern single dot SBU Grayscales Vert Hor Overlay 16 Grayscales SBU Grayscales with white lines Horizontal Grayscales with white lines Vertical Grayscales with white lines Vert Hor eo eo O1 A N 4 60 20 September 1999 SERVICE PROGRAM MODE 4 2 4 INPUT CHECK SP5 803 Serviceman P Mode Input Check Code 5 A250M501 WMF Access SP mode 5 803 2 Select the number that will access the switch or sensor you wish to check see the table below Check the status of the sensor or switch If you wish to check the signal during a copy cycle select the required copy modes then press the Start key After that re enter the SP mode to monitor the signal 5 The LCD panel will display or 01H The meaning of the display is as follows Input Check Table
61. ROLLER os oo an e A267D502 WMF The pressure springs A constantly apply pressure between the hot roller B and the pressure roller C Applied pressure can be changed by adjusting the position of the pressure springs The spring is positioned at the top D as the default setting The user moves lever E when using thicker copy paper or envelopes to reduce the pressure between the hot and pressure rollers 2 10 5 CLEANING MECHANISM A267D503 WMF The cleaning roller A is always in contact with the pressure roller B It collects toner and paper dust adhered to the surface of the pressure roller IMAGE FUSING AND PAPER EXIT 20 September 1999 2 10 6 FUSING TEMPERATURE CONTROL 200 4 180 yO 170 eee eee e Lou A AA Lm A PR Idling Enabled 100 4 Power On 1 job or 11 pages A267D511 WMF Temperature Control When the main power switch is turned on the CPU turns on the fusing lamp to maintain the fusing temperature of 180 C for the first job or for the first 11 consecutive pages of printing After that the machine maintains the fusing temperature at 170 C Note that the fusing temperature is higher if the user uses special paper in the 2 tray or thick paper mode from the bypass tray see Paper Feed Special Paper To prevent each end of the hot roller temperature from becoming too
62. Re adjustment Small Size 20 September 1999 SP1 909 9 this SP adjusts the upper paper 1 ms step lift motor reverse time for paper sizes larger 200 ms than the small size threshold set with SP1 909 8 If a middle size threshold is stored with SP1 909 9 then this SP adjusts the motor reverse time for sizes larger than the middle size Do not input a value greater than 1200 Use this SP when a paper feed problem occurs from the 2nd paper tray See Paper Lift Mechanism for details on SP1 909 Adjusts the upper paper lift motor reverse 0 2000 time for paper of the same size as or smaller 1 ms step than the small size threshold set with SP1 600 ms 909 8 Do not input a value greater than 1200 Use this SP when a paper feed problem occurs from the 2nd paper tray See Paper Lift Mechanism for details on SP1 909 Adjusts the upper paper lift motor reverse 0 2000 time for paper sizes larger than the small 1 ms step size threshold set with SP1 909 8 up to and 200 ms including the middle size threshold set with SP1 909 9 If a middle size threshold is not stored with SP1 909 9 this SP is not used Do not input a value greater than 1200 Use this SP when a paper feed problem occurs from the 2nd paper tray See Paper Lift Mechanism for details on SP1 909 Adjusts the upper paper lift motor forward rotation time for paper of the same size as or smaller than the small size threshold set with S
63. Returning to stand by 1212 2 82 3 INSTALLATION 3 1 3 1 INSTALLATION REQUIREMENTS essen 3 1 Qu ENVIRONMENT ad ied 3 1 MAGHINE EEVEL iii o i ed eed ue pde 3 1 3 1 3 MINIMUM SPACE 3 2 3 1 4 POWER 3 3 2 5i dioi Ee Ne HEIDE 3 4 3 2 1 POWER SOCKETS FOR PERIPHERALS see 3 4 3 2 2 INSTALLATION FLOW 3 5 3 2 3 ACCESSORY OHEGN cse to eeu sb QU Dung 3 6 3 2 4 INSTALLATION 3 7 3 3 PAPER TRAY UNIT 3 11 3 31 ACCESSORY 3 11 DOT INS PALEATION th ae deem nh ne 3 14 3 4 V ACCESSORY CHECK 3 14 3 5 AUTO REVERSE DOCUMENT FEEDER INSTALLATION 3 17 225 1 22 bo eph edens Eo nda 3 17 3 5 2 INSTALLATION 3 17 3 6 INTERCHANGE UNIT 3 20 351 COMPONENT GCHEGCNKE 21 cioe eset ee in are ised 3 20 3 6 2 INSTALLATION PROGEDLUNRE 3 21 3 7 1 BIN TRAY UNIT 3 23 3S 3 COMPONE
64. Strength 5 6 SERVICE PROGRAM MODE This adjustment is only effective for the Service Mode original type setting Selects the MTF filter coefficient in the binary picture processing mode See Detailed Descriptions Image Processing for details T P Text Photo This adjustment is only effective for the Service Mode original type setting Selects the MTF strength using grayscale processing mode See Detailed Descriptions Image Processing for details Weak Strong 1 2 3 4 5 0 x1 6 7 T P Text Photo 4 31 SERVICE PROGRAM MODE 20 September 1999 Mode No Class Class 1 and 2 3 P MTF Strength Text Grayscale This adjustment is only effective for the Service Mode original type setting Selects the MTF strength using grayscale processing mode See Detailed Descriptions Image Processing for details Weak Strong 1 2 3 4 5 0 x1 6 7 T P Text Photo Sub 77 154 P MTF Strength Sub 155 256 MTF Strength 10 Text Grayscale Sub 257 11 T P Grayscale Main 25 57 MTF Strength T P Grayscale P MTF Strength 13 T P Grayscale Main 6696 7696 P MTF Strength 14 Grayscale Main 77 154 15 T P Grayscale E Main 155 256 P MTF Strength 4 916 16 T P Grayscale Text Grayscale MTF Strength 12 Main 58 65 P MTF Strength Main 157 P MTF Strength 17 Grayscale Sub 125 57 P MTF Strength
65. The motor rotates forward when the remaining paper amount is lower than the value of SP1 911 7 If a middle size threshold is not stored with SP1 911 9 this SP is not used Use this SP when a paper feed problem occurs when paper in the 4th paper tray is running low See Optional Paper Tray Unit Paper Lift Mechanism for details on SP1 91 1 Selects the remaining paper amount limit for 0 None use with SP1 911 4 Empty Set this SP to 2 or 3 when a paper feed 1 Near End problem occurs before near end See Optional Paper Tray Unit Paper Lift Mechanism for details on SP1 91 1 Selects the remaining paper amount limit for 0 None use with SP1 911 5 Set this SP to 2 or 3 when a paper feed 1 Near End problem occurs before near end 2 2596 See Optional Paper Tray Unit Paper Lift Mechanism for details on SP1 91 1 Selects the small size threshold for the 4th paper tray Not used 0 means that this setting is not used 1 HLT A5 The size used by SP1 911 is determined by paper width See Optional Paper Tray Unit Paper Lift Mechanism for details on SP1 911 Selects the middle size threshold for the upper tray 0 means that this setting is not used Optional Paper Tray Unit Paper Lift Mechanism for details on SP1 91 1 Adjusts the tray motor reverse time 0 9000 The tray motor reverses when the tray is 1 ms step pulled out The tray be put back in the 1700 ms machine witho
66. Timer Stand by Night Mode Exhaust Fan Control Timer Low Power Mode Plug amp Play Setting LCT Paper Size 24V Down Setting Night Mode APS A4 LT Sideways Priority 20 September 1999 Inputs the fan control time for stand by and 30 120 night mode The fan slows down after this time has passed since the end of a job or enters energy saver mode The fan stops after this time has passed since any of the following conditions occurred e After entering night mode fax printer installed e After entering an SC condition Inputs the fan control timer for low power mode The fan stops after this time has passed since the machine entered low power mode Selects the brand name and the production name for the Plug and Play function of Windows 95 98 These are registered in the NVRAM If the NVRAM is defective these names should be registered again Set this SP to 1 Then press down the Original Type key and the OK key or key at the same time to register the setting If the setting was successful the beeper will sound 5 times If it failed the beeper will sound only twice If the setting is completed a mark will be displayed before the selection Selects the paper size for the LCT 0 A4 Use this SP after changing the paper size in Eur Asia the optional LCT i e after changing the side plate position for the LCT American model Selects whether or not the 24V su
67. agnification Mirroring Enabled only in the ADF mode Smoothing MTF Smoothing Filter Smoothing Strong MTF Weak Strong 4 927 2 Independent Dot Erase None Press print 4 940 6 Dither 105 lines 4 929 5 ID y Correction Coarse print Press print Glossy photo Dither Dither Error 53 lines 105 lines diffusion Threshold Constant Independent Dot Erase after image process Line Width Correction Disabled Gradation None Disabled 4 935 6 2 16 20 September 1999 Photo Mode Grayscale Processing IMAGE PROCESSING Photo Mode Glossy Service Coarse print Press print photo Mode ADS SBU As selected at the operation panel S As op panel 3 E ADS IPU As selected at the operation panel 4 937 3 4 938 3 55 Shading Correction Enabled Enabled White Line Correction Enabled 4 942 Enabled 4 918 3 Black Line Correction Enabled DF only 4 943 Strong DF only 4 919 3 Scanner y Correction NAE linear As op panel 4 928 3 Small Smoothing Filter Not used Main Scan Magnification Enabled Mirroring Enabled only in the ADF mode MTF Smoothing Filter Smoothing Strong Smoothing Medium MTF Weakest Smoothing Medium 4 927 1 Independent Dot Erase ID y Correction Coarse print Press print None Glossy photo Press print 4 940 3 Gradatio
68. around the center of the OHP Pressure spring position Nip band width Upper default position 5 0 0 5 mm Lower 5 3 0 5 mm Envelope feed mode green lever down at the 4 0 0 5 mm pring position If the width is out of the above specification the pressure spring should be replaced 20 September 1999 SERVICE PROGRAM MODE 4 2 15 DISPLAY LANGUAGE SP5 808 Europe Europe Europe Asia US standard 1 option 2 Taiwan China Russia 0 NA UK UK UK UK CN RU 1 FR DE DE DE TW UK UK 2 ES FR FR FR 3 IT IT IT 4 ES ES ES 5 NL SE CZ 6 NO PL 7 8 FI HU In the Lanier version this cannot be selected For Europe select the group standard option 1 or option 2 with SP 5 807 NA English UK English DE German TW Taiwan FR French IT Italian ES Spanish CN Chinese NL Dutch SE Swedish NO Norwegian RU Russian DK Danish Fl Finnish CZ Czech HU Hungarian PL Polish PT Portuguese 4 2 16 SERIAL NUMBER INPUT SP5 811 Used to input the machine s serial number This is normally done at the factory The numeric key pad has 12 buttons Use the first 11 buttons to to input the serial number amp is not used Each button represents one digit of the serial number Press consecutively to get the required letter number The first 4 buttons allow you to scroll through number 0 to 9 and A to Z
69. attracted from the drum this can occur when using an OHP sheet use a higher setting 4 19 SERVICE PROGRAM MODE Transfer Current Duplex Transfer Current Cleaning Transfer Current Input Front Transfer Current Input Rear Developer Initialization Separation Voltage Adjustment Front Leading Edge Separation Voltage Adjustment Front Image Area Separation Voltage Adjustment Rear Front Separation Voltage Adjustment Rear Image Area 20 September 1999 Adjusts the current applied to the transfer roller during copying from the duplex unit when the user uses the Normal paper setting Use this SP when the image on the rear side of the paper has a problem caused by poor image transfer Adjusts the current applied to the transfer roller during roller cleaning If toner remains on the roller after cleaning dirty background appears on the rear side of the paper increase the current This is for the designer s test purposes Do not change the value This is for the designer s test purposes Do not change the value Initializes the developer and checks Vt The 0 No machine mixes the developer for 2 minutes and while doing this it reads and displays the TD sensor output Vt It does not initialize the TD sensor output If the machine has not been used for a long time prints may have a dirty background In this case use this SP mode to mix the developer Af
70. beeper will sound only twice After performing this SP mode turn the machine s main switch off and on See Troubleshooting Service Call Conditions for how to use this mode Use to input the machine serial number This is normally done at the factory This serial number will be printed on the SMC report See the Serial Number Input section for details Use this to input the telephone number of the service representative this is displayed when a service call condition occurs Press the key if you need to input a pause Press the Clear Stop key to delete the telephone number Use this to input the fax number which will be printed on the user counter report Press the C key if you need to input a pause Press the C2 Clear Stop key to delete the telephone number 5 816 CSS Function This SP is for Japan only Do not change 0 No the value 1 Yes 4 46 20 September 1999 SERVICE PROGRAM MODE ERN 1 and 2 3 This SP is for Japan only Do not change 0 No 5 817 CE Start Call the value CE Finish Call EN RN Code the value 1 Yes NVRAM Data Uploads SP and UP mode data except for Upload counters and the serial number from the flash memory on the BICU board to a flash 5 824 memory card This SP can be used when a flash memory card is plugged into the machine See the NVRAM Data Upload section for details NVRAM Data Downloads SP mode data from a flash Download memory ca
71. for details on SP1 908 Adjusts the upper paper lift motor reverse 0 2000 time for paper sizes larger than the small 1 ms step size threshold set with SP1 908 8 up to and 200 ms including the middle size threshold set with SP1 908 9 If a middle size threshold is not stored with SP1 908 9 this SP is not used Do not input a value greater than 1200 Use this SP when a paper feed problem occurs from the 1st paper tray See Paper Lift Mechanism for details on SP1 908 Adjusts the upper paper lift motor forward rotation time for paper of the same size as or smaller than the small size threshold set with SP1 908 8 The motor rotates forward when the remaining paper amount is lower than the value of SP1 908 6 Use this SP when a paper feed problem occurs when paper in the 1st paper tray is running low See Paper Lift Mechanism for details on SP1 908 4 8 20 September 1999 Re adjustment Middle Size 1st Paper Amount Small Size 1st Paper Amount Middle Size 1st Small Paper Size Setting 1st Middle Paper Size Setting SERVICE PROGRAM MODE Adjusts the upper paper lift motor forward rotation time for paper sizes larger than the 1 ms step small size threshold set with SP1 908 8 300 ms to and including the middle size threshold set with SP1 908 9 The motor rotates forward when the amount of remaining paper is lower than the value of SP1 908 7 If a middle size threshold is not
72. four modes for controlling toner supply as shown in the following tables The mode can be changed with by SP2 921 The factory setting is sensor control 1 mode Basically toner density is controlled using the standard TD sensor voltage Vts toner supply reference voltage Vref actual TD sensor output voltage Vt and ID sensor output data Vsp Vsg Toner Supply Clutch On Time Calculation a TD Sensor Output Vt Vt Reference Voltage Vref New Vref Vt Reference Voltage Update Vref Update T ID Sensor Output Vsp Vsg TD Sensor Initial Setting Vts A265D517 WMF 2 46 20 September 1999 DEVELOPMENT There are four toner density control modes as follows Mode Sensor control 1 SP2 921 0 Normally use this setting only Toner supply decision Compare Vt with a reference voltage Vts or Vref Toner control process Toner is supplied to the development unit when Vt is higher than the reference voltage Vts or Vref This mode keeps the Vref value for use the next toner density control Vts is used for the first toner density control after a new PCU has been installed until it has been corrected with the ID sensor output Vref is used after Vts has been corrected with the ID sensor output voltage corrected during the first toner density control for a new PCU N y m
73. front cover is opened and closed for 10 seconds while a toner end condition exists and the toner bottle is replaced the machine attempts to recover using the same procedure as for toner near end end detection 2 51 DRUM CLEANING AND TONER RECYCLING 20 September 1999 2 7 DRUM CLEANING AND TONER RECYCLING 2 7 1 DRUM CLEANING A267D201 WMF The cleaning blade A removes any toner remaining on the drum after the image is transferred to the paper This model uses a counter blade system The cleaning blade scrapes off toner remaining on the drum When toner builds up in the cleaning unit toner at the top of the pile is removed by the toner collection coil B To remove the toner and other particles that are accumulated at the edge of the cleaning blade the drum turns in reverse for about 5 mm at the end of every copy job 20 September 1999 DRUM CLEANING AND TONER RECYCLING 2 7 2 TONER RECYCLING os oo an e A A267D205 WMF B B A267D306 WMF Toner picked up by the toner collection coil A is transported to the opening B in the side of the PCU Then this toner falls into the development unit with new toner coming from the toner bottle and it is all mixed together by mixing auger 1 C and used again PAPER FEED 20 September 1999 2 8 PAPER FEED 2 8 1 OVERVIEW 1 2 3 4 5 OX Ve E 6 5 L 2
74. has four types of energy saver mode as follows 1 Energy saver mode called panel off mode in the operation manual 2 Low power mode called energy saver mode in the operation manual 3 Auto off mode copier configuration only 4 Night mode copier fax copier printer copier fax printer configurations only These modes are controlled by the following UP and SP modes Energy saver timer Low power timer Auto off timer Energy saver mode Auto off disabling UP mode only The way that the machine operates depends on the combination of installed equipment copier only or whether a fax and or printer is installed 2 77 ENERGY SAVER MODES 20 September 1999 2 11 2 ENERGY SAVER MODE Entering the energy saver mode The machine enters energy saver mode when one of the following is done e The Energy Saver Key is held down for a second e The energy saver timer runs out after the last job User Tools System Settings Panel Off Timer default setting is 60 s What happens in energy saver mode When the machine enters energy saver mode the fusing lamp drops to a certain temperature and the operation panel indicators are turned off except for the Energy Saver LED and the Power LED If the CPU receives the image print out command from an application e g to print incoming fax data or to print data from a PC the fusing temperature rises to print the data However the operation indicators stay off Return to
75. has the P Line Width greatest effect 3 Correction Photo Grayscale Settings 4 to 9 make lines thicker 9 has the P Line Width greatest effect 4 ti 4 935 E Thinnest Thickest Text Binary P Line Width 1 2 3 0 4 5 6 7 8 9 Correction Text Photo Binary P Line Width Correction Photo Binary 4 39 SERVICE PROGRAM MODE 20 September 1999 Mode No Class Class 1and2 3 P SBU ADS This adjustment is only effective for the 1 Setting Service Mode original type setting Text Grayscale Selects whether the SBU ADS process is P SBU ADS done If 0 is selected it depends on Setting whether the user selects ADS at the Text Photo operation panel Grayscale See Detailed Descriptions Image 4 936 Photo Grayscale P SBU ADS Setting Text Binary P SBU ADS 5 Setting Text Photo Binary P SBU ADS SBU ADS Processing for details Setting Normally do not change the value Setting Photo Binary P IPU ADS Setting This adjustment is only effective for the 1 Text Grayscale Service Mode original type setting Selects whether the IPU ADS process is P IPU ADS Setting done If 0 is selected it depends on 2 Text Photo whether the user selects ADS at the Grayscale operation panel The value of SP4 938 is P IPU ADS Setting SUbtracted from the white video level Photo Grayscale See Detailed Description Image Processi
76. in the 7 0 49 5 Side to Side ADF mode 0 1 mm step 1 Use the key to toggle between and 0 0 mm before entering the value See Replacement and Adjustment Copy Adjustment for details ADF Registration Adjusts the leading edge registration in the 5 0 45 0 Leading Edge ADF mode 0 1 mm step Use the 2 key to toggle between and 0 0 mm before entering the value See Replacement and Adjustment Copy 2 Adjustment for details 4 50 20 September 1999 SERVICE PROGRAM MODE 6 901 6 902 6 905 6 910 ADF Registration Adjusts the trailing edge erase margin in the 3 0 43 0 Trailing Edge ADF mode 0 1 mm step Erase key to toggle between 1 0 mm before entering the value See Replacement and Adjustment Copy Adjustment for details ADF Registration Adjusts the side to side registration on the 7 0 49 5 Side to Side Rear rear side of the original in the ADF mode 0 5 mm step Use the 2 key to toggle between and 0 0 mm before entering the value See Replacement and Adjustment Copy Adjustment for details ADF Sub scan Adjusts the magnification in the sub scan 0 9 0 9 Magnification direction for ADF mode 0 1 step Use the key to toggle between and 0 0 before entering the value See Replacement and Adjustment Copy Adjustment for details ADF Free Run Performs an ADF free run in duplex scanning mode After selecting 1 press OK or t
77. it failed the beeper will sound only twice 4 Turn the main switch off and back on Do the printer and scanner registration and magnification adjustments see Replacement and Adjustment Copy Adjustments Referring to the SMC data lists re enter any values that differ from the factory settings In particular the values for SP4 904 1 SP4 904 2 SP4 905 and SP4 907 must be re entered Do the standard white level adjustment SP4 908 See Replacement and Adjustment Standard White Density Adjustment for details Check the copy quality and the paper path and do any necessary adjustments 4 71 SERVICE PROGRAM MODE 20 September 1999 4 2 10 PROGRAM UPLOAD DOWNLOAD In this machine the BICU software is upgraded using a flash memory card There are two program download procedures SP5 826 Uploads from the BICU to a flash memory card SP5 827 Downloads from a flash memory card to the BICU Program Download SP5 827 A265M514 WMF A265M500 WMF 1 Turn off the main switch Remove the application cover A 1 screw Plug flash memory card B into the card slot NOTE Make sure that the surface printed A faces the back side of the machine as viewed from the front of the machine 4 Hold the Energy Saver key and turn on the main switch NOTE To access SP mode 5 827 directly hold the Energy Saver key 1 key at the same time then turn on the main switch Go to st
78. leak signal is detected The current feedback signal for the transfer roller is not detected Possible causes High voltage supply board defective Poor connection of the PCU Transfer separation unit set incorrectly Transfer roller damaged SC411 Separation bias leak error Definition B A separation bias leak signal is detected Possible causes e High voltage supply board defective Poor connection of the PCU e Discharge plate defective SC500 Main motor lock Definition B A main motor lock signal is not detected for more than 500 ms after the main motor starts to rotate or the lock signal is not detected for more than 500 ms during rotation after the last signal Possible causes e Too much load on the drive mechanism e Main motor defective 7 6 20 September 1999 SERVICE CALL CONDITIONS SC501 1st paper tray lift motor malfunction SC502 2nd paper tray lift motor malfunction SC503 3rd paper tray lift motor malfunction optional paper tray unit SC504 4th paper tray lift motor malfunction optional paper tray unit Definition C The paper lift sensor is not activated after the tray lift motor has been on for 18 seconds Possible causes Paper lift sensor defective Tray lift motor defective Too much load on the drive mechanism Poor tray lift motor connection SC506 Paper tray motor lock optional paper tray unit Definition C A motor lock signal is not detected for more than 1 5 s
79. machine before attempting any of the procedures in this section 6 1 SCANNER UNIT 6 1 1 EXPOSURE GLASS B A B A267R001 WMF vcio 5 Er on Cs oa og Open the ADF or platen cover Remove the left scale A 2 screws Remove the rear scale B 3 screws PRU Remove the exposure glass C NOTE When reinstalling the exposure glass make sure that the mark D is positioned at the rear left corner as shown SCANNER UNIT 20 September 1999 6 1 2 SCANNER EXTERIOR OPERATION PANEL SE c a E B A267R002 WMF Remove the ADF or platen cover Remove the exposure glass See Exposure Glass Remove the upper front cover A 1 screw 1 hook Remove the operation panel B 5 screws 1 connector Remove the right cover C 1 screw 2 hooks Remove the rear cover D 2 screws Remove the left cover E 2 screws 2 hooks 6 2 20 September 1999 SCANNER UNIT 6 1 3 LENS BLOCK ASSEMBLY A267R003 WMF C A267R006 WMF Remove the exposure glass See Scanner Exterior Exposure Glass Remove the right cover A See Scanner Exterior Exposure Glass Remove the lens cover B 4 screws vci 5 on oy og eet Replace the lens block assembly C 5 screws 1 connector NOTE Do not remove the screws which are locked with white paint 5 Reassemble the machine and do the scanner and printer copy adjustments
80. not been used for a long time 4 22 20 September 1999 Toner End Clear Vref Upper Limit Vref Lower Limit Copies After TD Sensor Error ID Sensor Detection Interval Transfer Roller Cleaning SERVICE PROGRAM MODE Clears the toner end condition Select 1 then press the li key to clear the toner end condition without adding new toner If this is 1 the following are cleared Toner end indicator goes out Toner near end counter Toner near end level When making a lot of copies after changing this setting to 1 the carrier may be attracted to the drum when the toner runs out which may damage the drum Adjusts the upper limit for Vref 0 00 5 00 When there is dirty background on the copy 0 01 V step 220 V Adjusts the lower limit for Vref 0 00 5 00 0 01 V step 1 10 V Selects the number of copies that can be 0 100 made after a TD sensor error has been copies detected When the machine copies this 1 200 amount an SC condition will occur copies If the optional fax unit is installed the SC condition occurs immediately regardless of the number of prints this is because the sender of the fax cannot check the image quality of the printout If the machine starts warming up after this 0 999 time has passed since entering night mode 1 for example to print an incoming fax the minute step machine makes an ID sensor pattern 30 minutes If this value is g
81. or LCT 2 Without the ADF Less than 62 kg 136 7 Ib M c Copying Speed copies minute A4 sideways Russian C1A 11 x 812 A31 x 17 Non memory copy mode 22 12 Memory copy mode 22 13 Russian C1B 4 sideways A3 11 x 17 11 x 81 2 Non memory copy mode 22 12 Memory copy mode 27 15 NOTE Measurement Conditions 1 Not APS mode 2 A4 LT copying 3 Full size Warm up Time First Copy Time Copy Number Input Less than 45 seconds 20 C 68 F Less than 4 9 s A4 less than 5 0 s LT NOTE Measurement Conditions 1 When the polygonal mirror motor is spinning 2 From the 1st paper tray 3 Not APS mode 4 Full size Ten key pad 1 to 99 count up or count down Manual Image Density 7 steps SPECIFICATIONS Paper Tray Capacity Toner Replenishment Toner Yield Copy Tray Capacity Memory Capacity 20 September 1999 Paper Tray 500 sheets x 2 Special paper in the 2nd paper tray 50 sheets Paper Tray Unit Option 500 sheets x 2 LCT Option 1000 sheets x 2 By pass Tray Option 100 sheets A4 B5 A5 B6 81 2 x 11 51 2 x 81 2 10 sheets A3 B4 11 x 17 81 2 x 13 1 sheets non standard sizes NOTE Copy paper weight 80g m 20 Ib Cartridge exchange 360 g cartridge 10 k copies A4 sideways 6 full black 1 to 1 copying ADS mode Copy Tray 500 sheets without 1 bin tray 250 sheets with 1 bin tra
82. or the lock signal is not detected for more than 1 0 s during rotation Possible causes Paper tray unit motor defective e Too much load on the drive mechanism SC507 Tandem tray lift error optional LCT Definition C The lower limit sensor is not activated after the paper tray lift motor has been on to lower the tandem tray for 8 seconds Possible causes e Paper tray lift motor defective e Lower limit sensor defective Too much load on the drive mechanism og Qs 30 22 SC508 Rear fence drive error optional LCT Definition C The return position sensor is not activated after the rear fence drive motor has been on to lower the tandem tray for 8 seconds Possible causes e Rear fence motor defective Return position sensor defective e Too much load on the drive mechanism 7 7 SERVICE CALL CONDITIONS 20 September 1999 SC509 Side fence drive error optional LCT Definition C The side fence positioning sensor is not activated for more 3 seconds when the paper stack in the left tray is moved to the right tray The side fence close sensor is not activated for more 3 seconds after moving the paper stack to the right tray Possible causes Side fence motor defective Side fence position sensor defective Side fence close sensor defective Too much load on the drive mechanism SC541 Fusing thermistor open Definition A The fusing temperature detected by the thermistor
83. pattern SC 392 will be generated DRUM CHARGE 20 September 1999 2 5 DRUM CHARGE 2 5 1 OVERVIEW A267D203 WMF This copier uses a drum charge roller to charge the drum The drum charge roller A always contacts the surface of the drum B to give it a negative charge of 900V The high voltage supply board gives a negative dc voltage to the drum charge roller through the spring C and terminal plate D 20 September 1999 DRUM CHARGE 2 5 1 CHARGE ROLLER VOLTAGE CORRECTION Correction for Environmental Conditions A 28 9 cm _ 2 2 B 2 gt j EE ID Sensor Pattern 2 amp 2 PESE Sub Scan Direction Charge Voltage PRE 1450 V Off Drum Potential Development Bias ID Sensor Output V sp 0 50 V t A265D516 WMF With a drum charge roller system the voltage transferred from roller to drum varies with the temperature and humidity around the drum charge roller The lower the temperature or humidity is the higher the applied voltage required To compensate the machine uses the ID sensor to measure the effects of current environmental conditions For this measurement the process control parameters are balanced so that any small change in drum potential caused by environmental effects is reflected in a change in the amount of toner transferred to the drum This measurement is made immediately
84. side erase margin on the reverse side of duplex copies The actual right side erase margin on the reverse side is this value plus the value of SP2 101 6 The specification is 2 2 5 1 5 mm See Replacement and Adjustment Copy Adjustment for details In printer mode adjusts the trailing edge erase margin on the reverse side of duplex copies The actual trailing edge erase margin on the reverse side is this value plus the value of SP2 101 7 The specification is 3 2 mm See Replacement and Adjustment Copy Adjustment for details 0 1 mm step 1 2 mm 0 0 9 0 0 1 mm step 0 3 mm 0 0 9 0 0 1 mm step 0 0 mm Adjusts the LD power Do not change the value Adjusts the image density level for black pixels on test pattern printouts patterns are made with SP5 902 This SP affects all test patterns except for the grayscale test patterns Adjusts the development bias during printing This can be adjusted as a temporary measure if faint copies appear due to an aging drum 4 18 20 September 1999 Development Bias Adjustment ID sensor pattern Copies after Near End Vt Vsg Vsp Vsdp Data Display ID Sensor Error Display Transfer Current Paper Tray Feed Transfer Current By pass Feed SERVICE PROGRAM MODE Adjusts the development bias for making the ID sensor pattern The actual development voltage for the ID sensor pattern is this value plus the value of SP2 201 1 This sho
85. stand by mode If one of the following is done the machine returns to stand by mode The Energy Saver Mode key is pressed An original is placed in the ADF e The ADF is lifted A sheet of paper is placed in the by pass feed table The recovery time from energy saver mode is about 3 s Energy Saver Fusing Temp LED System 5V Operation Mode Switch Energy Saver On On 160 C On Mode 20 September 1999 ENERGY SAVER MODES 2 11 3 LOW POWER MODE Entering the low power mode The machine enters low power mode when The low power shift timer runs out after the last job User Tools System Settings Energy Saver Timer default setting is 15 min What happens in low power mode os um oo an e There are two low power modes Low Power Mode Level 1 and Low Power Mode Level 2 This can be selected by UP mode User Tools System Settings Energy Saver Level The fusing lamp drops to a certain temperature as shown in the table below the temperature drops more than that in energy saver mode The other conditions are the same as for the energy saver mode The fusing temperature for the level 2 low power mode can be changed by SP 1 105 the default setting is 80 C Return to stand by mode The machine returns to standby mode in the same way as from the energy saver mode Approx Fusing Temp Recovery Time 120 C 15s Operation Mode Switch Low Po
86. standard reference voltage Vts of the TD sensor Toner density measurement Toner density in the developer is detected once every copy cycle The sensor output voltage Vt during the detection cycle is compared with the standard reference voltage Vts or the toner supply reference voltage Vref Vsp Vsg detection The ID sensor detects the following voltages The ID sensor output when checking the drum surface Vsp The ID sensor output when checking the ID sensor pattern In this way the reflectivity of both the drum surface and the pattern on the drum are checked This compensates for any variations in the reflectivity of the pattern on the drum or the reflectivity of the drum surface The ID sensor pattern is made on the drum by charge roller and laser diode Vsp Vsg is not detected every page or job it is detected at the following times to decide Vref During warming up at power f the machine starts warming up after a certain time default 30 minutes has passed since entering night mode or low power mode The 30 minute interval can be changed using SP2 995 Toner supply reference voltage Vref determination The toner supply reference voltage Vref is the threshold voltage for the toner supply determination Vref is determined using the following data D sensor output Vsp Vsg Vts or the current Vref Vt Toner supply determination The reference voltage Vts or Vref is the t
87. stored with SP1 908 9 this SP is not used Use this SP when a paper feed problem occurs when paper in the 1st paper tray is running low See Paper Lift Mechanism for details on SP1 908 Selects the remaining paper amount limit for 0 None use with SP1 908 4 Empty Set this SP to 2 or 3 when a paper feed 1 Near End problem occurs before near end See Paper Lift Mechanism for details on SP1 908 Selects the remaining paper amount limit for 0 None use with SP1 908 5 Set this SP to 2 or 3 when a paper feed 1 Near End problem occurs before near end 2 2596 See Paper Lift Mechanism for details 3 75 SP1 908 Selects the small size threshold for the 1st 0 None B paper tray tray Not used 0 means that this setting is not used 1 HLT A5 The size used by SP1 908 is determined 2 A4 paper width See Paper Lift Mechanism fon 3 LT details on SP1 908 Service Tables Selects the middle size threshold for the upper tray Not used 0 means that this setting is not used The value must be larger than the small size threshold SP1 908 8 The size used by SP1 908 is determined by paper width 4 DLT Paper Lift Mechanism for details on SP1 5 908 4 9 SERVICE PROGRAM MODE Pressure Adjustment Normal Size 2nd Bottom Plate Pressure Adjustment Small Size 2nd Bottom Plate Pressure Adjustment Middle Size 2nd Bottom Plate Pressure
88. the power cord the telephone line and the network cable NOTE If an expansion box was installed remove it before starting the following procedure 1 Remove the connector cover A and rear cover B 4 screws 1 plastic pin 2 Attach the board C to the bracket D 2 screws 3 Remove screw E 4 Install the board assembly F 3 screws including screw E 20 September 1999 PLATEN COVER INSTALLATION 3 14 PLATEN COVER INSTALLATION 5 5 N A2671505 WMF 1 Install the platen cover A 2 screws 3 39 KEY COUNTER INSTALLATION 20 September 1999 3 15 KEY COUNTER INSTALLATION A2671231 WMF A2651500 WMF NCAUTION Unplug the machine power cord before starting the following procedure Remove two caps A Connect the key counter cable B Install the stepped screw C Bw 19 Hold the key counter plate nuts D on the inside of the key counter bracket E and insert the key counter holder F Secure the key counter holder to the bracket 2 screws 6 Install the key counter cover G 2 screws 20 September 1999 KEY COUNTER INSTALLATION 5 5 N A2671232 WNMF 7 Connect the cable A 8 Hook the key counter holder assembly B onto the stepped screw C 9 Secure the key counter holder assembly with a screw D 10 Change the value of SP5 113 to 1 ANTI CONDENSATION HEATER 20 September 1999
89. time default 30 minutes has passed since entering night mode or low power mode The 30 minute interval can be changed using SP2 995 20 September 1999 DRUM CHARGE 2 5 3 DRUM CHARGE ROLLER CLEANING os oo an e A267D204 WMF Because the drum charge roller A always contacts the drum it gets dirty easily So the cleaning pad B also contacts the drum charge roller all the time to clean the surface of the drum charge roller The pin C at the rear of the cleaning pad holder touches the cam gear D and this gear moves the cleaning pad from side to side This movement improves the cleaning DEVELOPMENT 20 September 1999 2 6 DEVELOPMENT 2 6 1 OVERVIEW A267D301 WMF The development unit consists of the following parts 1 Development roller 4 Mixing auger 1 2 Mixing auger 2 5 Doctor blade 3 TD sensor This machine uses a single roller development system Two mixing augers mix the developer The toner density TD sensor and image density ID sensor see the illustration in the PCU section are used to control toner density 20 September 1999 DEVELOPMENT 2 6 2 DRIVE A os oo an e D A267D304 WMF The main motor A drives the development roller B and mixing augers C through a train of gears and the development drive shaft D When the PCU is pushed in the development drive shaft engages the development
90. use 3 Registration clutch 4 Not used 5 6 Toner supply motor Not used 8 Not used 9 Exhaust fan High Speed 10 Exhaust fan Low Speed 11 Not used 12 By pass feed clutch 13 Upper paper feed clutch 14 Lower paper feed clutch 15 Upper paper lift motor Up 16 Upper paper lift motor Down 17 Lower paper lift motor Up 18 Lower paper lift motor Down 4 66 20 September 1999 SERVICE PROGRAM MODE Number Description 19 Lower paper lift motor Up Optional paper tray unit 20 Lower paper lift motor Down Optional paper tray unit 21 Upper relay clutch 22 Lower relay clutch 23 Relay clutch Optional paper tray unit 24 25 used 26 Upper paper feed clutch Optional paper tray unit 27 Lower paper feed clutch Optional paper tray unit 28 Tray motor Optional paper tray unit Upper Paper lift motor Up Optional paper tray unit or 29 30 Rear fence motor forward Optional LCT 31 Upper paper lift motor Down Optional paper tray unit or LCT 32 Rear fence motor reverse Optional LCT 33 Side fence solenoid Optional LCT 34 Shift tray motor Optional shift tray 35 Not used 36 Exit junction gate Optional interchange unit 37 Duplex junction gate Optional interchange unit 38 39 Not used 40 Duplex inverter motor Reverse Optional duplex unit 41 Duplex inverter motor Forward Optional duplex unit 42 Duplex transport motor
91. 0 0010110 81 2 x 14 W1 L1 W2 L2 1 Original set sensor status 1 Paper detected 2 APS sensor status 1 Paper detected 3 Paper size display L1 L2 wi we Paper size inches mm 0 0 0 0 81 2 x 11 Sideways A4 Sideways 0 0 0 1 B5 Sideways 0 0 1 0 81 2 x 51 2 Sideways A5 Sideways 0 0 1 1 51 2 x 81 2 Lengthwise A5 Lengthwise 1 0 1 0 81 2 x 11 Lengthwise A4 Lengthwise 1 0 1 1 B5 Lengthwise 1 1 0 0 11 x17 A3 1 1 0 1 10 x 14 B4 1 1 1 0 81 2 x 14 81 2 x 13 1 Detected 4 77 SERVICE PROGRAM MODE 20 September 1999 4 2 14 NIP BAND WIDTH MEASUREMENT OHP Paper feed direction N A265M501 WMF When paper wrinkling or image off set occurs the pressure from the pressure roller can be adjusted by changing the position of the pressure springs At this time the nip band width can also be checked with SP1 109 as follows Do a free run SP5 802 for about 50 sheets 1 2 Access SP1 109 and press the 1 key 3 4 Press the lt 2 key to enter mode Place an OHP sheet A4 8 5 x11 sideways on the by pass tray or in the 2nd paper tray Press the Start key The OHP sheet is stopped in the fusing unit for about 20 seconds then it will be fed automatically Check the nip band width A The relationship between the position of the pressure spring and the band width is as follows NOTE Check the nip band width
92. 0 19 3 8 PAPER END SENSOR REPLACEMENT A860 20 3 9 VERTICAL TRANSPORT SENSOR REPLACEMENT A860 20 3 10 PAPER SIZE SWITCH A860 21 LCT A862 1 OVERALL MACHINE INFORMATION A862 1 22 tasas taped Gr pudore Gone Si entra A862 1 1 2 MECHANICAL COMPONENT A862 2 1 3 ELECTRICAL COMPONENT LAYOUT eene A862 3 1 4 ELECTRICAL COMPONENT A862 4 2 DETAILED SECTION DESCRIPTIONS A862 5 2 1 nro atteinte Saabs tnter codd A862 5 2 2 REVERSE ROLLER AND PICK UP ROLLER RELEASE A862 6 23r TEAYEIET3 s cts cua tees eer Pe e e OC C e tbt o acude odo ede ote A862 7 2 4 NEAR END END 2 0 00 40 0 1 0 862 8 2 5 RIGHT TRAY SIDE FENGE d httodidu tein A862 9 2 6 LEFT TRAY REAR FENCE A862 9 2 7 RIGHT TRAY PAPER END A862 10 3 REPLACEMENT AND ADJUSTMENT A862 11 3 1 DETACHING THE TRAY FROM THE
93. 1 fi A Leading Edge Registration B Side to side Registration A267R511 WMF Magnification NOTE Use an 5 test chart to perform the following adjustment Sub Scan Magnification A A Sub Scan Magnification A267R512 WMF 1 Place the test chart on the exposure glass and make a copy from one of the feed stations 2 Check the magnification ratio and adjust it using the following SP mode if necessary The specification is 1 SP mode Sub Scan Magnification SP4 008 6 38 20 September 1999 COPY ADJUSTMENTS PRINTING SCANNING Standard White Density Adjustment This adjusts the standard white density level Perform this adjustment in any of the following conditions After replacing the standard white plate After replacing the NVRAM on the BICU board If only BICU board is replaced this adjustment is not necessary as the NVRAM from the old BICU is put on the new BICU e After performing a memory all clear SP5 801 Procedure 1 Place 10 sheets of new A4 sideways do not use any recycled paper or A3 paper on the exposure glass and close the platen cover or the ADF 2 Enter SP 4 908 and select 1 Yes The standard white density is automatically adjusted vcio 5 Er on Cs og COPY ADJUSTMENTS PRINTING SCANNING 20 September 1999 6 8 3 ADF IMAGE ADJUSTMENT Registration 17 A267R514 WMF A Leading Edge Registration B Side to side
94. 59 2 8 7 FEED PRESSURE ADJUSTMENT FOR PAPER SIZE 2 60 II ccc 2 60 Paper Size Thresholds oi naan Aa o dar it NAGAR As 2 60 Feed Pressure AdjUSIrmielib eco ett eet ne et OD Ee deus 2 61 Effect of the Amount of Remaining 2 61 2 8 8 PAPER SIZE DETEGTION tact OR To RH ER tx 2 63 2 8 9 SPECIAL PAPER SETTING item ttim neon Quen rn ns 2 64 2 8 10 SIDE AND ERE 2 65 SIde FONCGS e 2 65 ENF CIC st cent tis wes oes od tov ee utres ere uto ee 2 65 2 8 11 PAPER 2 66 2 9 IMAGE TRANSFER AND PAPER 2 67 2 9 LOVER WIE W rase ette di tes dade cir pu e io pd e eS 2 67 2 9 2 IMAGE TRANSFER CURRENT 2 68 2 9 3 TRANSFER ROLLER 424222 2 2 2 2 69 2 9 4 PAPER SEPARATION 2 69 2 10 IMAGE FUSING AND PAPER EXIT 2 70 2 10 1 OVERVIEW 2 70 2 10 2 FUSING DRIVE AND RELEASE 2 71 2 10 3 FUSING ENTRANCE GUIDE SHIFT MECHANISM 2 72 2 10 4 PRESSURE 2 73 2 10 5 CLEANING MECHANISM sess 2 73
95. 681 9 24 SIABEERJ M IEEE A681 10 25 REED OBT MECHANISM 22 ruit Ep atu A681 11 2 6 SHIFT TRAY UP DOWN A681 12 2 7 SHIFT TRAY SIDE TO SIDE A681 13 2 9 JANLGONDLEDIQNS edicti eh os ads eL xax dti Us A681 14 2 9 TIMING CHARTS aetna A681 15 2 9 1 NO STAPLE MODE A4 SIDEWAYS SHEETS 2SETS A681 15 2 9 2 STAPLE MODE A4 SIDEWAYS 2 SHEETS 2 SETS A681 16 3 SERVICE TABLE 681 17 3 1 DIP SWITCH TABLE Dee cope het epo ban A681 17 94 A681 17 223 LO LLL 681 17 4 REPLACEMENT AND ADJUSTMENT A681 18 41 COVER REMOVAL 056 681 18 Front DOO DOT A681 18 FIODUGOUDE E EAA A681 18 681 18 Upper 2 681 18 Lower A681 19 Front Shift Tray COVer s a petet ade tege atre nde rame A681 19 Rear Shift Tray A681 19 iarciet TETTE A681 19 4 2 ENTRANCE SENSOR A681 20 4 3 EXI
96. 9114 ueog Hie 149191 3909 1914 ue9S qng 995 1897 6 6 S el es ey eee LP e 1491913909 1913 ULIS A265D511 WMF 2 23 IMAGE PROCESSING 20 September 1999 Smoothing Filter Adjustment Photo Mode When the user selects Service Mode for Photo original type the smoothing filter can be changed with SP4 927 A stronger smoothing filter makes the image more blurred 1 Weak 8 Strong Smoothing Filter Adjustment Text and Text Photo Modes To reduce the possibility of moir a small matrix smoothing filter is used after scanner gamma correction in the Text and Text Photo mode This is only used when the user selects Service Mode for either Text or Text Photo original type The level of smoothing can be adjusted with SP4 921 Independent Dot Erase In Text mode and in Text Photo mode independent dots are detected using a 7 x 9 matrix and erased from the image The independent dot detection level can be adjusted with SP4 917 for the original modes known as Service Mode and SP4 944 other original modes on off only no adjustment With a larger SP setting more dots are detected as independent dots and erased even if the dot s density is high However dots in mesh like images may be detected as independent dots mistakenly Independent Dot Erase after Binary Picture Processin
97. 99 This adjustment is only effective for the Service Mode original type setting Selects the MTF strength using binary picture processing mode See Detailed Descriptions Image Processing for details Weak Strong 1 2 3 4 5 0 x1 6 7 T P Text Photo This adjustment is only effective for the Service Mode original type setting Selects the independent dot erase level See Detailed Descriptions Image Processing for details With a larger SP setting more dots are detected as independent dots and erased However dots in mesh like images may be detected as independent dots mistakenly If 0 is selected independent dot erase is disabled 4 34 20 September 1999 SERVICE PROGRAM MODE Mode No Class Class EXE This adjustment is only effective for the Text Grayscale Mode original type setting P White Line Erase Selects whether or not white line erase is 2 Text Photo done See Detailed Descriptions Image Processing for details Photo Grayscale Text Binary 4 P White Line Erase Text Photo Binary P White Line Erase Photo Binary P Black Line Erase This adjustment is only effective for the 0 Disable Text Grayscale Service Mode original type setting 1 Strong Selects the black line erase level This SP is 2 Weak P Black Line Erase effective only scanning the original using the 0 Disable ADF See Detailed Descriptions Image 1 St
98. 99 INTERCHANGE UNIT INSTALLATION 3 6 2 INSTALLATION PROCEDURE B D E B3001503 WMF gt 2 E H 2 1 2 D F G B3001502 WMF NCAUTION Unplug the copier power cord before starting the following procedure Remove all tapes Open the right cover A of the copier Open cover B ee ee Remove the metal clip C NOTE To remove the clip push the small tab D on the clip into the slot E then the clip can be removed 5 Remove the cover B If the optional 1 bin tray unit will be installed do steps 6 and 7 6 Loosen the screw push down tab F with a screwdriver and remove the front right cover G 7 Slide out the exit cover H INTERCHANGE UNIT INSTALLATION 20 September 1999 B3001103 WMF D B3001104 WMF C 8 Open the cover A of the interchange unit 9 Install the interchange unit 2 connectors B 10 Secure the interchange unit with the knob screws C 11 Attach the connector cover D 1 screw 20 September 1999 1 BIN TRAY UNIT INSTALLATION 3 7 1 BIN TRAY UNIT INSTALLATION 3 7 1 COMPONENT CHECK Check the quantity and condition of the components against the following list No Description Q ty 1 1 Bin Tray Unit 1 2 Tray 1 3 Sub Tray 1 4 Tray Guide 1 5 1 6 Tapping Screw M3x8 1 e S 5 S o 8981101 3 7 2 INSTALLATION PROCE
99. A 3 Remove the connector cover B 1 screw the entrance cover C 2 screws if the by pass tray has not been installed and two screws D Install the bracket E 1 screw 5 by pass tray has already been installed skip this step Install the unit holder F using the Allen key 4 set screws NOTE 1 Make sure that the four screws are tightened in the proper order as shown above Otherwise the duplex unit will not properly lock in place 2 After securing the unit store the Allen key in the inner cover G for future use Installation DUPLEX UNIT INSTALLATION 20 September 1999 F B A896l104 WMF 6 Set the duplex unit A on the unit holder B or on the by pass tray unit if it has already been installed 7 Attach the link C to the shaft D and secure it with the clip 8 Connect the cable E and install the connector cover F 1 screw 9 If the by pass tray has already been installed skip this step Install the unit holder cover G 2 screws 10 Turn on the main power switch and check the duplex unit function 20 September 1999 BRIDGE UNIT INSTALLATION 3 11 BRIDGE UNIT INSTALLATION 3 11 1 ACCESSORY CHECK Check the quantity and condition of the accessories against the following list No Description Q ty 1 Bridge Unit 1 2 Securing Plate 1 3 Shoulder Screw 1 4 Knob Screw 1 5 S o A8971101 WMF 3 11 2 IN
100. A and B However these outputs are only used when the optional printer controller is installed When the amount of paper decreases the bottom plate pressure lever C moves the actuator up The following combination of sensor signals is sent to the copier Amount of Paper Paper Height Sensor 1 Paper Height Sensor 2 Near End OFF ON 3096 ON ON 7096 ON OFF 10096 OFF OFF When the tray contains paper of a small width the paper feed pressure may become too low when the thickness of the remaining stack of paper has decreased The lift motor rotates forward 400 ms after the sensor detects a certain amount of paper remaining in the tray to increase paper feed pressure simulating the pressure generated by a full tray NOTE The relationship between the bottom plate re adjustment timing paper size threshold and the related SP modes is explained in Bottom Plate Pressure Adjustment for Paper Size 2 59 PAPER FEED 20 September 1999 2 8 7 FEED PRESSURE ADJUSTMENT FOR PAPER SIZE Overview For the friction pad system the pressure from the top of the stack against the feed rolleris very important for paper feed quality from the paper tray If the pressure is high double feed may occur On the other hand if the pressure is low non feed may occur Because of this the pressure must be varied depending on the paper size paper weight and amount of paper remaining in the tray To achieve this the pressure fo
101. B When a toner bottle is placed in the bottle holder unit A and the unit is pushed in completely pin B moves against the side C of the PCU and the toner shutter D is pulled out to open the bottle When the toner bottle holder lever E is put back in the original position the cap F on the toner bottle is pulled away and kept in place by the chuck G The toner supply mechanism transports toner from the bottle to the development unit The toner bottle has a spiral groove H that helps move toner to the development unit When the bottle holder unit is pulled out to add a new toner bottle the following happens automatically to prevent toner from scattering The chuck releases the toner bottle cap into its proper position The toner shutter shuts to block the opening as a result of pressure from a spring 20 September 1999 DEVELOPMENT Toner supply mechanism os oo an e A265D508 WMF E A267D306 WMF The toner supply motor A drives the toner bottle B and the mylar blades C First the toner falls down into the toner bottle holder The toner supply mylar blades transfer the toner to the slit D When the PCU is installed in the machine the shutter E above the PCU is opened by the machine frame Then the toner falls down into the development unit through the slit and the shutter DEVELOPMENT 20 September 1999 2 6 6 TONER DENSITY CONTROL Overview There are
102. D output is detected in some parts of the line the machine assumes this is due to abnormal black lines on the white plate This low output is corrected using neighboring pixels To switch off this correction use SP4 918 for the original modes known as Service Mode and SP4 942 other original modes Black Line Erase Compensation In ADF mode if extremely low CCD output is detected on the scanning line before the leading edge of original arrives there this is attributed to abnormal black dots on the exposure glass This low output is corrected using neighboring pixels To adjust or switch off this correction use SP4 919 for the original modes known as Service Mode and SP4 943 other original modes 2 18 20 September 1999 IMAGE PROCESSING Scanner Gamma y Correction The CCD output is not proportional to the quantity of the light received Scanner gamma correction corrects the CCD output so that grayscale data is proportion to the quantity of the light received The machine has four possible scanner gamma curves The curve used by the machine depends on the original type selected by the user at the operation panel and with 09 Image Mode Adjustment in the user tools If the user selects one of the original modes known as service mode the gamma curve can be selected with SP4 928 If O is selected with SP 4 928 the scanner gamma curve is either AE or NAE depending on the selected original mode text photo etc
103. DURE A8981501 WMF NCAUTION Unplug the copier power cord before starting the following procedure NOTE Before installing this 1 bin tray unit the optional interchange unit B300 must be installed 1 Remove all tapes 2 the optional bridge unit A897 has been installed open the right jam removal cover A of the bridge unit If the optional bridge unit is not installed skip this step 3 23 1 BIN TRAY UNIT INSTALLATION 20 September 1999 A8981500 WMF E A8981103 WMF If the front right cover A is installed remove it Install the 1 bin tray unit B 1 screw Connect the connector C Reinstall the front right cover mu e Peel off the backing D of the double sided tape attached to the paper guide E Then attach the paper guide to the underside of the scanner unit as shown 20 September 1999 1 BIN TRAY UNIT INSTALLATION A 5 5 N A898l105 WMF 8 Install the tray guide A 9 Install the tray B 10 Install the sub tray C 11 Turn on the main power switch and check the 1 bin tray unit operation SHIFT TRAY 20 September 1999 3 8 SHIFT TRAY 3 8 1 COMPONENT CHECK Check the quantity and condition of the components against the following list No Description Q ty 1 Shift Tray Unit 1 2 Paper Guide Large 1 3 Paper Guide Small 2 4 Stepped Screw 1 B3131101 WMF 3 8 2 INSTALLATION PROCEDURE
104. ESSING 2 8 OI eT TTA 2 8 Image Processing MOdOS eae oda tura adea ues 2 9 Image Processing Pati eine tacitae ien det tei np dated es 2 11 SP Modes for Each Image Processing Step 2 12 PUTO NACI ets Aes et E 2 18 White Line Erase 2 18 Black Line Erase Compensation 2 18 Scanner Gamma y 2 19 Main Scan 2 20 Mirroring Tor ADP MOd Gi 2 20 EE ET m 2 21 ID Gamma y Correction cocoa pi ea euet ar Duro cree er Per 2 25 Gradation PIOGOSSITIG eoi e pain aM tne 2 25 Line width correction cecceeccecceeececceeececceceaeeceeceeeceecuecaucceecaeeseeeaees 2 27 2 2 5 MEMORY CONTROLLER AND ENHANCED MEMORY BORAD ver vede NALE s 2 28 2 2 6 VIDEO CONTROL UNIT VGL iiti n RR ERR EE e 2 29 Fine Character and Image 2 29 Printer Gamma GOortOclloll oi eia oa es pta une 2 29 2 5 LASER EXPOSURE conte clonal ics 2 30 ZO OVERVIEW uberi cie Aaa n d qe a dM ds ce b dec A as ag RM d 2 30 2 3 2 AUTO POWER CONTROL 2 31 2 3 23 LD SAFETY SWITCH susti M Ed ER rte Dieta Rer 2 32 2 4 PHOTOCONDUCTOR UNIT 2 33 24 0 OVERVIEW
105. G Blank Margin 20 September 1999 NOTE If the leading edge side to side registration cannot be adjusted within the specifications adjust the leading left side edge blank margin 1 Check the trailing edge and right side edge blank margins and adjust them using the following SP modes SP mode Specification D Trailing edge SP2 101 i 2 3 4 Right edge SP2 101 6 2 2 5 1 5 mm Leading edge SP2 101 1 3 2 T Left edge SP2 101 5 2 1 5mm Trailing edge duplex SP2 101 7 2 2mm copy 2nd side A Left edge duplex SP2 101 8 2 1 5mm copy 2nd side B Right edge duplex SP2 101 9 2 2 5 1 5 mm A267R509 WMF copy 2nd side Main Scan Magnification A Trailing Edge Blank Margin B Right Edge Blank Margin C Leading Edge Blank Margin D Left Edge Blank Margin 1 Print the single dot grid pattern SP5 902 no 5 2 Check the magnification and adjust the magnification using SP2 998 1 if necessary The specification is 1 6 36 20 September 1999 COPY ADJUSTMENTS PRINTING SCANNING Parallelogram Image Adjustment Do the following procedure if a parallelogram is printed while adjusting the printing registration or the printing margin using a trimming area pattern NOTE The following procedure should be done after adjusting the side to side registration for each paper tray station A WP Turn clockwise
106. G AND PAPER EXIT 2 10 1 OVERVIEW 11 10 A267D516 WMF The fusing unit and paper exit area consist of the following parts 1 Paper exit roller 7 Fusing lamps 2 Fusing exit sensor 8 Thermistor 3 Hotroller strippers 9 roller 4 Pressure spring 10 Thermofuse 5 Cleaning roller 11 Paper overflow sensor 6 Pressure roller 20 September 1999 IMAGE FUSING AND PAPER EXIT 2 10 2 FUSING DRIVE AND RELEASE MECHANISM os oo an e A267D504 WMF N D E A267D505 WMF The main motor A drives the fusing unit through a gear train and drives the paper exit rollers B through a timing belt C The fusing unit release mechanism automatically disengages the fusing unit drive gear D when the right cover E is opened This allows the fusing unit drive gear to rotate freely so that misfed paper can easily be removed IMAGE FUSING AND PAPER EXIT 20 September 1999 2 10 3 FUSING ENTRANCE GUIDE SHIFT MECHANISM A267D506 WMF The entrance guide A is adjustable for paper thickness to prevent creasing The left screw holes B on each side are used as the default setting If creasing occurs frequently in the fusing unit adjust the entrance guide to the right by securing it with the other holes C This allows more direct access to the gap between the hot roller and the pressure roller 2 72 20 September 1999 IMAGE FUSING AND PAPER EXIT 2 10 4 PRESSURE
107. HEN OPEN AVOID EXPOSURE TO BEAM UNSICHTBARE LASERSTRAHLUNG WENN ABDECKUNG GE FFNET NICHT DEM STRAHL AUSSETZEN gt PS lt LASER 4 WMF A2671104 WMF 6 10 20 September 1999 LASER UNIT 6 2 2 LASER UNIT A A267R102 WMF A267R103 WMF Z WARNING Turn off the main power switch and unplug the machine before attempting this procedure Laser beam can seriously damage your eyes es ides 5 Er a on Cos oy og 1 Remove the optional finisher bridge unit and either the tray for the optional 1 bin tray unit or optional shift tray if these units have been installed Remove the upper front cover A 1 screw 1 hook Remove the front cover B 2 pins Remove the inner cover C 5 screws Remove the copy tray D 1 hook E Remove the toner bottle holder F Remove the laser unit G 2 screws 2 connectors After reassembling the machine do the scanner and printer copy adjustments See Copy Adjustments 6 11 LASER UNIT 20 September 1999 6 2 3 POLYGON MIRROR MOTOR A267R104 WMF 1 Remove the laser unit see Laser Unit 2 Remove the heat sink A 4 screws 3 Replace the polygon mirror motor B 4 screws 1 connector NOTE When installing the new polygon mirror motor do not touch the surface of the mirror with bare hands 6 2 4 LD UNIT A267R105 WMF 1 Remove the laser unit see Laser Unit 2 Replace
108. LS Part Number Description Q ty 54209516 Test Chart OS A3 10 pcs set A0069104 Scanner Positioning Pin 4 pcs set A0299387 Digital Multimeter FLUKE 87 A2309351 Case Flash Memory Card A2309352 Flash Memory Card 4 A2679001 NVRAM Minus Counter A2309003 Adjustment Cam Laser Unit A2679002 Positioning Pin Laser Unit 4 5 2 LUBRICANTS Part Number Description A0289300 Grease Barrierta JFE 5 5 2 52039501 Silicone Grease G 501 4 83 20 September 1999 PM TABLE 5 PREVENTIVE MAINTENANCE SCHEDULE 5 1 PM TABLE NOTE 1 The amounts mentioned as the PM interval indicate the number of prints 2 After carrying out PM clear the maintenance counter SP7 804 Symbol key C Clean R Replace L Lubricate Inspect A265 A267 EM 120K 240K 360K NOTE SCANNER LASER OPTICS Reflector C C C Optics cloth 1st Mirror C C C C Optics cloth 2nd Mirror C C C C Optics cloth 3rd Mirror C C C Optics cloth Scanner Guide Rails C C C Do not use alcohol Platen Sheet Cover Replace the platen sheet if necessary Dry cloth or alcohol Exposure Glass Dry cloth or alcohol Toner Shield Glass Optics cloth APS Sensor Dry cloth or blower brush AROUND THE DRUM Transfer Separation Unit Preventive Maintenance ID Sensor Perform the ID s
109. NT A898 5 3 1 PAPER SENSOR REMOVAL iri cada A898 5 BRIDGE UNIT A897 1 OVERALL MACHINE INFORMATION A897 1 T SPECIFICATIONS 897 1 1 2 MECHANICAL COMPONENT 0 897 2 1 3 ELECTRICAL COMPONENT LAYOUT A897 3 1 4 ELECTRICAL COMPONENT A897 4 1 9 DRIMETEAOUITa 897 5 2 DETAILED A897 6 2 1 JUNCTION GATE 5 A897 6 3 REPLACEMENT AND ADJUSTMENT A897 7 3 1 BRIDGE UNIT DRIVE MOTOR A897 7 3 2 TRAY EXIT SENSOR A897 8 3 3 RELAY SENSOR eee A897 8 SHIFT TRAY UNIT B313 1 OVERALL MACHINE INFORMATION B313 1 TI SPECIFICATIONS s scien snes aun cae a ante it B313 1 1 2 LAYOUT nh ned rena ei innt B313 2 2 DETAILED SECTION DESCRIPTIONS B313 3 2 1 BASIO OPERATION cire tpm pne napa nde B313 3 2 2 PRIMARY 5
110. NT ma eie au 3 23 3 7 2 INSTALLATION 3 23 SgS SAFT EUN e aam EA AULA 3 26 3 8 V COMPONENT ee xti x edi SERE Se E ERA SERRE 3 26 3 8 2 INSTALLATION 3 26 3 9 BY PASS FEED UNIT 3 28 3 9 1 COMPONENTS 3 28 3 9 2 INSTALLATION 3 28 3 10 DUPLEX INSTAEENATIGOILZ Sarisin iseanan 3 30 3 10 1 ACCESSORY CHECK lico ideo tet 3 30 3 10 2 INSTALLATION 0 3 31 3 11 BRIDGE UNIT INSTALDEAT iii tita inso 3 33 3 11 1 ACCESSORY CHE GK uii rtp tractet pic e tp ep 3 33 3 11 2 INSTALLATION PROCEDURE iem cemere 3 33 3 12 1 000 5 FINISHER 3 35 3 13 COPIER FEATURE EXPANDER INSTALLATION 3 38 3 14 PLATEN COVER INSTALLAT IQN arbe ratio 3 39 3 15 KEY COUNTER 3 40 3 16 ANTI CONDENSATION 3 42 TRAYSEIENTETD UI eoo dL oed ee eite e uno cae 3 43 3 18 TRAY HEATER OPTIONAL PAPER TRAY UNIT 3 45 3 19 TRAY HEATER OPTIONAL LCT 3 48 4 SERVICE TABLES 4 1 GENERAL
111. OR SPECIAL PAPER SENSOR 6 28 6 6 8 REGISTRATION SENSOR ian rette 6 29 6 6 9 RELAY SENSORS 3 ideae ERREUR E PRA 6 30 Upper Relay 5 6 30 Lower Relay Sensor awa cec aL a Red 6 30 6 7 PCBS AND OTHER TEMO aciei a 6 31 vi Oo 7 T BIOULBORHD 55540 Re uid dud 6 31 6 7 24 EEE EEEE 6 32 6 7 3 oiii anna area lada laeua res NEL DEN 6 32 6 74 MAIN 950 br EE 6 33 SW ON SPP PETI aro Mp Tut E ASNA 6 34 6 8 COPY ADJUSTMENTS PRINTING SCANNING 6 35 5 94 PRINTING pneu uenenum ditur uni 6 35 Registration Leading 5 5 6 35 Blanie eee etd eA LM 6 36 Main Scan MadnifiGatiOTi i otc a 6 36 Parallelogram Image 6 37 8 2 SCANNING ditm hdd dae utu dd 6 38 Registration Platen 6 38 me 6 38 Standard White Density 6 39 6 8 3 ADF IMAGE ADJUSTMENT 6 40 laico THEE 6 40 7 TIROUBLESHOOTIN Q 5 232595 c euet nac or onn Ro Cen no any ee eR eR Eran nur 7 1 7 1 SERVICE CALL CONDITIONS sse 7 1 SUMMAR aaa
112. P1 908 3 2nd paper tray SP1 909 1 SP1 909 2 SP1 909 3 3rd paper tray SP1 910 1 SP1 910 2 SP1 910 3 4th paper tray SP1 911 1 SP1 911 2 SP1 911 3 Default all trays 200 ms 600 ms 200 ms default not used 2 61 PAPER FEED From paper near end to paper end 20 September 1999 When paper is used up the pressure on the bottom plate reduces so the upward pressure increases causing the pressure of the feed roller against the top of the stack to increase However for small paper sizes because of the previous correction 600 ms reverse rotation of the lift motor the pressure between the feed roller and the top of the stack becomes too small at some point as paper is used up and this could cause paper feed problems This condition is more significant for smaller paper sizes such as A5 as shown in the diagram If a paper feed problem occurs when the stack is partly used up the pressure can be re adjusted in the graph using the following SP modes The default is set for 50 sheets at the near end point The lift motor rotates forward for the time specified by the SP mode to increase the pressure Paper Size 1st paper tray Small Size Middle Size HLT A5 or smaller default setting SP1 908 4 None default setting SP1 908 5 2nd paper tray SP1 909 4 SP1 909 5 3rd paper tray SP1 910 4 SP1 910 5 4th paper tray SP1 911 4 SP1 911 5 Default all
113. P1 909 8 The motor rotates forward when the remaining paper amount is lower than the value of SP1 909 6 Use this SP when a paper feed problem occurs when paper in the 2nd paper tray is running low See Paper Lift Mechanism for details on SP1 909 4 10 20 September 1999 Re adjustment Middle Size 2nd Paper Amount Small Size 2nd Paper Amount Middle Size 2nd Small Paper Size Setting 2nd Middle Paper Size Setting SERVICE PROGRAM MODE Adjusts the upper paper lift motor forward rotation time for paper sizes larger than the 1 ms step small size threshold set with SP1 909 8 300 ms to and including the middle size threshold set with SP1 909 9 The motor rotates forward when the remaining paper amount is lower than the value of SP1 909 7 If a middle size threshold is not stored with SP1 909 9 this SP is not used Use this SP when a paper feed problem occurs when paper in the 2nd paper tray is running low See Paper Lift Mechanism for details on SP1 909 Selects the remaining paper amount limit for 0 None use with SP1 909 4 Empty Set this SP to 2 or 3 when a paper feed 1 Near End problem occurs before near end See Paper Lift Mechanism for details on SP1 909 Selects the remaining paper amount limit for 0 None use with SP1 909 5 Set this SP to 2 or 3 when a paper feed 1 Near End problem occurs before near end 2 2596 See Paper Lift Mechanism for d
114. PROGRAM MODE Adjusts the upper paper lift motor forward rotation time for paper sizes larger than the 1 ms step small size threshold set with SP1 910 8 up 300 ms to and including the middle size threshold set with SP1 910 9 The motor rotates forward when the remaining paper is lower than the value of SP1 910 7 If a middle size threshold is not stored with SP1 910 9 this SP is not used Use this SP when a paper feed problem occurs when paper in the 3rd paper tray is running low See Optional Paper Tray Unit Paper Lift Mechanism for details on SP1 910 Selects the remaining paper amount limit for 0 None use with SP1 910 4 Empty Set this SP to 2 or 3 when a paper feed 1 Near End problem occurs before near end See Optional Paper Tray Unit Paper Lift Mechanism for details on SP1 910 Selects the remaining paper amount limit for 0 None use with SP1 910 5 Set this SP to 2 or 3 when a paper feed 1 Near End problem occurs before near end 2 2596 See Optional Paper Tray Unit Paper Lift Mechanism for details on SP1 910 Selects the small size threshold for the 3rd paper tray 0 means that this setting is not used The size used by SP1 910 is determined by paper width See Optional Paper Tray Unit Paper Lift Mechanism for details on SP1 910 Selects the middle size threshold for the upper tray 0 means that this setting is not used The value must be larger than the small size thresho
115. Paper Overflow Detects paper overflow in the built in copy tray S11 Paper Exit Detects misfeeds S12 Upper Relay Detects misfeeds S13 Lower Relay Detects misfeeds S14 Registration Detects misfeeds and controls registration clutch 1st Paper Lift off on timing Detects when the paper in the 1st paper tray is at the feed height 2nd Paper Lift Detects when the paper in the 2nd paper tray is at the feed height 1st Paper Height 1 Detects the amount of paper in the 1st paper tray 1st Paper Height 2 Detects the amount of paper in the 1st paper tray 2nd Paper Height 1 Detects the amount of paper in the 2nd paper tray 2nd Paper Height 2 Detects the amount of paper in the 2nd paper tray BICU Base Engine and Image Control Unit Controls all base engine functions both directly and through other control boards PSU Power Supply Unit Provides dc power to the system and ac power to the fusing lamp and heaters IOB Input Output Board Controls the fusing lamp and the mechanical parts of the machine SBU Sensor Board Unit Contains the CCD and outputs a video signal to the BICU board Lamp Stabilizer Stabilizes the power to the exposure lamp LDD Laser Diode Driver Controls the laser diode Operation Panel Controls the operation panel 20 September 1999 Symbol Name ELECTRICAL COMPONENT DESCRIPTIONS Func
116. ROR 6 12 pado DD DIT uii it eer d SE 6 12 6 2 5 LASER SYNCHRONIZATION 6 13 6 3 PHOTOCONDUCTOR UNIT 6 14 POL ndn toon wr i 6 14 6 4 TRANSFER UNIT anhand otn neca b taedet 6 15 6 4 4 TRANSFER ROLLER 6 15 6 4 2 IMAGE DENSITY SENSOR Op se eed en udis 6 16 BS SINGS A AD 6 17 6 5 1 FUSING UNIT EI IER LE cetera Ete ete areas 6 17 6 5 2 THERMISTOR i ir bbc suc diae Uu 6 17 553 THERMO U SE 5 aree pedes pi tei poe epe hose eee tpa ent ong 6 18 6 5 4 HOT ROLLER AND 6 19 6 5 5 PRESSURE ROLLER CLEANING ROLLER 6 20 6 5 6 PAPER EXIT SENSOR PAPER OVERFLOW SENSOR 6 21 6 0 PAPER FEE D Duties Aes 6 22 6 6 1 FEED ROLLERS 45 2 cede ten bius 6 22 6 6 2 PAPER END SENDSOM ioco ttn eterne enaet ades tede 6 23 6 6 3 PAPER TRAY LIFT MOTORS aei esset ise invisa edicta ne aedis 6 24 6 6 4 REGISTRATION GEU TOLEL hti ea otio hae ed he 6 25 6 6 5 PAPER FEED GEUT CHE Sy one rk 6 26 Lower Paper Feed Clutch eid mde kt ado etm Me 6 26 Upper Paper Feed 6 26 6 6 6 RELAY CLUTCHES tits EU M AA ME 6 27 6 6 7 PAPER SIZE DETECT
117. RVICE CALL CONDITIONS 20 September 1999 SC725 Finisher stack feed out motor error Definition B The stack feed out belt H P sensor does not activate within a certain time after the stack feed out motor turned on Possible causes e Stack feed out H P sensor defective e Stack feed out motor defective SC726 Finisher shift motor error Definition B Tray shift does not finish within a certain time after the shift motor turned on Possible causes e Shift motor defective e Shift tray half turn sensor defective SC730 Finisher stapler position motor error Definition B 1 The stapler does not return to its home position within a certain time after the stapler motor turned on 2 The stapler H P sensor does not activate within a certain time after the stapler motor turned on Possible causes e Stapler motor defective e Stapler H P sensor defective Poor stapler motor connection SC733 Finisher stack feed out motor error Definition B The stack feed out belt H P sensor does not activate within a certain time after the stack feed out motor turned on Possible causes Stack feed out H P sensor defective Stack feed out motor defective 7 12 20 September 1999 SERVICE CALL CONDITIONS SC734 Finisher lift motor error Definition B The stack height sensor does not activate within a certain time after the shift tray lift motor turned on Possible causes e Shift tra
118. Registration A267R513 WMF NOTE Make a temporary test chart as shown above using A3 DLT paper 1 Place the temporary test chart on the ADF and make a copy from one of the feed stations 2 Check the registration and adjust using the following SP modes if necessary SP mode Side to side Registration SP6 006 1 Leading Edge Registration Simplex SP6 006 2 Trailing Edge Blank Margin SP6 006 3 Side to side Registration Duplex rear SP6 006 4 6 40 20 September 1999 SERVICE CALL CONDITIONS 7 TROUBLESHOOTING 7 1 SERVICE CALL CONDITIONS 7 1 1 SUMMARY There are 4 levels of service call conditions To prevent the machine from being Enter SP 5 810 SC code damaged the SC can only be reset reset and select 1 Then hold a service representative down the Photo mode key and The copier cannot be operated at all the key at the same time for at least 3 seconds this does not require the main VAM to be turned off and on The SC can be reset by turning the Turn the operation switch or operation switch off and on if the SC main power switch off and on was caused by a sensor error The SC can be reset by turning the Turn the main power switch off main power switch off and on if the SC and on was caused by a communication error The copier can be operated as usual Turn the operation switch off except for the unit related to the service and on call NOTE 1 If the problem concerns elect
119. Remove the paper tray A 2 Remove the paper end sensor assembly 1 screw 1 connector 3 Replace the paper end sensor B vcio 5 Er on Cs oa og PAPER FEED 20 September 1999 6 6 3 PAPER TRAY LIFT MOTORS OO A267R705 WMF A267R707 WMF Remove the paper tray Remove the connector cover A 1 screw and disconnect the cable Remove the rear cover B 4 screws Remove the duplex connector cover C 1 screw Remove the lower rear cover D 2 screws Replace the paper lift motors E 2 screws each 1 connector each 20 September 1999 PAPER FEED 6 6 4 REGISTRATION CLUTCH A B A267R712 WMF Remove the connector cover and the rear cover See Paper Tray Lift Motors 2 Remove the duplex connector cover and lower rear cover See Paper Tray Lift Motors 3 Remove the fly wheels A 1 screw Remove the registration clutch B 1 E ring 1 connector 5 Er on Cs oa og PAPER FEED 20 September 1999 6 6 5 PAPER FEED CLUTCHES A267R713 WMF A267R715 WMF Lower Paper Feed Clutch Ts Remove the rear cover See Paper Tray Lift Motors 2 Remove the lower rear cover See Paper Tray Lift Motors 3 Replace the lower paper feed clutch A 1 connector Upper Paper Feed Clutch 4 Disconnect the connectors B for the I O board as s
120. Russian C A265 A267 SERVICE MANUAL NIMPORTANT SAFETY NOTICES PREVENTION OF PHYSICAL INJURY 1 Before disassembling or assembling parts of the copier and peripherals make sure that the copier power cord is unplugged 2 The wall outlet should be near the copier and easily accessible If any adjustment or operation check has to be made with exterior covers off or open while the main switch is turned on keep hands away from electrified or mechanically driven components If a job has started before the copier completes the warm up or initializing period keep hands away from the mechanical and electrical components because the starts making copies as soon as the warm up period is completed The inside and the metal parts of the fusing unit become extremely hot while the copier is operating Be careful to avoid touching those components with your bare hands HEALTH SAFETY CONDITIONS Toner is non toxic but if you get it in your eyes by accident it may cause temporary eye discomfort Try to remove with eye drops or flush with water as first aid If unsuccessful get medical attention SAFETY AND ECOLOGICAL NOTES FOR DISPOSAL Do not incinerate the toner cassettes Toner dust may ignite suddenly when exposed to an open flame Dispose of toner cassettes in accordance with local regulations This is a non toxic unit Dispose of replaced parts in accordance with local regulations LASER SAFETY The Center fo
121. STALLATION PROCEDURE A8971500 WMF A8971501 WMF NCAUTION Unplug the copier power cord before starting the following procedure 1 Remove all tapes 2 Loosen the screw A and remove the front right cover B If sensor feeler C is out fold it away into the machine 3 33 BRIDGE UNIT INSTALLATION 20 September 1999 D A8971102 WMF A8971103 WMF Remove the cover A 1 screw Install the bridge unit B 1 shoulder screw 1 knob screw Reinstall the front right cover C Connect the cable D to the main machine Quo EN Oh es Attach the securing plate E as shown NOTE Do not attach it with a screw this is done when securing the front stand for the optional finisher 9 Install the optional finisher A681 refer to the 1000 sheet finisher installation procedure 3 34 20 September 1999 1 000 SHEET FINISHER INSTALLATION 3 12 1 000 SHEET FINISHER INSTALLATION 5 A6811504 WMF Z CAUTION Unplug the main machine power cord before starting the following procedure NOTE 1 If this finisher will be installed on the A265 or A267 copier or G038 printer the following options must be installed before installing this finisher Bridge Unit A897 Paper Tray Unit A860 or LCT A862 2 If this finisher will be installed on the A265 or A267 copier the following option should also be installed Copier Memory Unit A887 1 Unpack
122. T SENSOR A681 21 4 4 STACK HEIGHT SENSOR REPLACEMENT A681 22 4 5 POSITIONING ROLLER REPLACEMENT A681 23 4 6 STAPLER A681 24 Xiv 20 September 1999 SPECIFICATIONS 1 OVERALL MACHINE INFORMATION 1 1 SPECIFICATIONS Configuration Desktop Copy Process Dry electrostatic transfer system Originals Sheet Book Original Size Maximum A3 11 x 17 Copy Paper Size Maximum A3 11 x 17 Minimum A5 81 2 x 51 2 lengthwise Custom sizes 2nd paper tray Width 100 297 mm 3 9 11 5 Length 148 432 mm 5 8 17 0 By pass tray Option Width 90 305 mm 3 5 12 0 Length 148 1 260 mm 5 8 49 6 Copy Paper Weight Paper Tray 60 105 g m 16 28 Ib 1st paper tray 60 157 g m 16 43 Ib 2nd paper tray By pass Option 60 157 g m 16 42 Ib Reproduction Ratios 5 Enlargement and 7 Reduction 4 Version LT DLT Version 40096 400 200 200 Enlargement 141 155 122 129 115 121 Full Size 100 100 93 93 87 85 82 78 Reduction 71 73 65 65 50 50 25 25 SPECIFICATIONS Zoom Power Source 20 September 1999 25 to 400 in 1 steps Platen mode 50 to 200 in 1 steps ADF mode 120 V 60 Hz More than 12 A for North America 220 240 V 50 60 Hz More tha
123. TRAY HEATER OPTIONAL LCT A2651507 WMF NCAUTION Unplug the machine power cord before starting the following procedure Remove two joint brackets A 1 screw each Remove the rear cover for the LCT B 2 screws Slide out the paper tray C Push the stopper D on both slide rails and remove the paper tray Pass the connector E through the opening F S oix pn Install the tray heater G 1 screw 20 September 1999 TRAY HEATER OPTIONAL LCT E 5 A8621202 WMF B A8601203 WMF 7 nstall five clamps A 8 Connect the cable B to the tray heater cable C 9 Route the cable and clamp it 10 Remove the connector cover of the copier D 11 Join the connectors E 12 Reinstall the connector cover of the copier TRAY HEATER OPTIONAL LCT 20 September 1999 Shu Al AY 5 i E 2 Pu B A8621601 WMF B C A8621600 WMF 13 Remove two screws A from the rear side of the LCT 14 Reinstall the rear cover of the LCT 15 Reinstall the paper tray 16 Remove the 2nd paper tray of the copier 17 Remove two screws B and install the screws C which were removed in step 13 18 Reinstall the 2nd paper tray of the copier 20 September 1999 GENERAL CAUTION 4 SERVICE TABLES 4 1 GENERAL CAUTION Do not turn off the main switch while any of the electr
124. The corrected pixels are compared with an error diffusion matrix If the user selects Service Mode for Text greyscale mode or Text Photo greyscale or binary picture mode and the thresholding type is changed from constant to dynamic an error diffusion matrix can be selected with SP4 929 1 No 1 4 x 4 matrix and No 2 8 x 8 matrix The two selections are prepared for future use to match original types which are not supported currently Therefore at this moment SP4 929 1 should not be used Error diffusion cannot be selected in Photo mode Dithering Each pixel is compared with the pixel in the same position in a dither matrix Several matrixes are available to increase or decrease the detail on the copy If the user selects Service Mode for Photo original type the dither matrix can be selected with SP4 929 3 and SP4 929 5 A larger value for this SP mode increases the number of gradations However the image will not have much contrast Line width correction This function is effective only in pale mode and copied original mode these are original types for Text mode with greyscale Usually lines will bulge in the main scan direction as a result of the negative positive development system that is used in this model So pixels on edges between black and white areas are compared with adjacent pixels and if the pixel is on a line the line thickness will be reduced The line width correction is done in the IPU chip The line w
125. V 60 Hz More than 12 A 220 V 240 V 50 Hz 60 Hz More than 6 A 110V 50 Hz 60 Hz More than 13 A 2 Permissible voltage fluctuation 10 96 E 5 3 Do not set anything on the power cord 3 3 COPIER INSTALLATION 20 September 1999 3 2 COPIER INSTALLATION 3 2 1 POWER SOCKETS FOR PERIPHERALS NCAUTION Rating voltage for peripherals Make sure to plug the cables into the correct sockets 2 Bridge Unit or Shift Tray 1 Rating voltage output 1 Rating voltage output connector for accessory connector for accessory Max DC24 V Max DC24 V 4 Duplex Unit 3 By pass Tray AZOTISOQ WME 1 Rating voltage output 1 Rating voltage output connector for accessory connector for accessory Max DC24 V Max DC24 V 3 4 20 September 1999 COPIER INSTALLATION 3 2 2 INSTALLATION FLOW CHART The following flow chart shows how to install the optional units more efficiently Unpack the copier Does the user require the Paper Tray Unit LCT or Finisher Yes Place the copier on Paper Tray Unit LCT Install the Paper Tray Unit or LCT Install the copier Does the user require the Copier Feature Expander Yes T No Install the Copier Feature Expander i Does the user require the By pass Tray Yes Install the By pass Tray i Does the user require the Shift Tray Yes Install the Shift Tray i Does the user require the Finisher Yes
126. VERALL ELECTRICAL A858 19 3 REPLACEMENT AND ADJUSTMENT A858 20 3 1 DF EXIT TABLE AND COVER eater A858 20 3 2 ORIGINAL FEED UNIT iine nes t peer 858 21 39 LEF m PE 858 22 Sato PICKUP ROLL ER eee A t BE Ae Ae A858 23 aS PEED 858 24 9 6 SEPARATION ROLLER 858 25 3 7 ORIGINAL SET ORIGINAL REVERSE SENSOR A858 26 3 8 ORIGINAL LENGTH WIDTHSENSOR BOARD AND TRAILING EDGE SENSOPRL A858 27 3 9 DF FEED CLUTCH DF PICK UP SOLENOID TRANSPORT DE FEED MOTORS 858 28 DF Feed ClCH 858 28 PICK UP Solenoid ta 858 28 Oeo Robb i da 858 28 DF Feed as cou aee eO eR eco Dee Dac rom 858 28 3 10 REGISTRATION 5 858 29 3 11 STAMP SOLENOID AND ORIGINAL EXIT SENSOR A858 30 viii PAPER TRAY UNIT A860 1 OVERALL MACHINE INFORMATION A860 1 121 SPECIFICATIONS to rc Ce ode cov A860 1 1 2 MECHANICAL COMPONENT A860 2 1 3 ELECTRICAL COMPONENT
127. Y HEATER OPTIONAL PAPER TRAY UNIT A 5 5 N A2651509 WMF NCAUTION Unplug the machine power cord before starting the following procedure Remove the joint brackets A 1 screw each Remove the rear cover B for the optional paper tray unit 2 screws Remove the cable guide C 1 screw Bo m E Install the clamps D TRAY HEATER OPTIONAL PAPER TRAY UNIT 20 September 1999 A2651503 WMF A2651505 WMF 5 Slide out the two paper trays from the optional paper tray unit 6 Attach the tray heater to the heater bracket as shown 6 Pass the connector A through the opening B 7 nstall the tray heater assembly C 1 screw 8 Clamp the cables D as shown 9 Join the connectors E 11 Reinstall the cable guide 20 September 1999 TRAY HEATER OPTIONAL PAPER TRAY UNIT 12 13 14 15 16 17 5 N A2651508 WMF C B Remove two screws A from the rear side of the paper feed unit Reinstall the rear cover for the optional paper tray unit Reinstall the two paper trays into the optional paper tray unit Remove the 2nd paper tray of the copier Remove two screws B and install the screws C which were removed in step 12 Reinstall the 2nd paper tray of the copier TRAY HEATER OPTIONAL LCT 20 September 1999 3 19
128. Y UNIT Paper Feed Roller Clean with water Friction Pad Dry cloth Paper Feed Guides Clean with alcohol Relay Rollers Clean with water Bottom Plate Pad Clean with water Relay Clutch Replace if necessary Paper Feed Clutch Replace if necessary Relay Clutch Replace if necessary EM 120K 240K 360K NOTE LCT Paper Feed Roller R R R Pick up Roller R R R Separation Roller R R R Transport Rollers C C C Clean with water Bottom Plate Pad C C C Clean with water Paper Feed Clutch Replace if necessary 5 2 20 September 1999 PM TABLE EM 120K 240K 360K NOTE 1 000 SHEET FINISHER Rollers C Clean with water or alcohol Brush Roller Replace if necessary Discharge Brush C C C C Clean with a dry cloth Sensors C Blower brush Jogger Fences Punch Waste Hopper Replace if necessary Empty the hopper NOTE 1 BIN TRAY UNIT Rollers Dry or damp cloth Copy Tray Dry or damp cloth Sensors NOTE 1 Main Motor Drive Gear A Do the following every EM Lubricate the main motor drive gear A with silicone grease G501 5 3 Blower brush gt ES 2 5 A265P500 WMF 20 September 1999 SCANNER UNIT 6 REPLACEMENT AND ADJUSTMENT NCAUTION Turn off the main power switch and unplug the
129. abled Enabled White Line Correction Enabled 4 942 Enabled 4 918 2 Black Line Correction Enabled DF only 4 943 Strong DF only 4 919 2 Scanner y Correction AE linear As op panel 4 928 2 Small Smoothing Filter Normal Normal 4 921 2 Main Scan Magnification Enabled Mirroring Enabled only in the ADF mode MTF Smoothing Filter MTF Weak MTF Weakest MTF Weak 4 915 11 22 4 916 11 22 Independent Dot Erase Weak 4 944 Enable disable Weak 4 917 2 ID y Correction Text priority Photo priority Text priority 4 940 2 Gradation Error diffusion Threshold Constant Constant 4 929 2 Independent Dot Erase after image process None Line Width Correction Disabled 2 15 Thick Strong 4 935 2 N 2 5 5 IMAGE PROCESSING 20 September 1999 Photo Mode Binary Picture Processing Photo Mode Glossy Service Coarse print Press print photo Mode ADS SBU As selected at the operation panel peop pang 4 936 6 As op panel ADS IPU As selected at the operation panel 4 937 6 4 938 6 Shading Correction Enabled Enabled Enabled Enabled 4 942 4 918 6 Black Line Correction Enabled DF only 4 943 asd As op panel 4 928 6 White Line Correction Scanner y Correction NAE linear Small Smoothing Filter Not used 1 Enabled
130. after the ID sensor pattern for toner density control Immediately after making ID sensor pattern A the charge roller voltage stays on but the development bias goes to 600V as a result the drum potential is reduced to 700V The laser diode is not switched on and the drum potential is now slightly higher than the development bias so only a very small amount of toner transfers to the drum The ID sensor measures the density of this pattern B and the output voltage is known as Vsdp This voltage is compared with Vsg read from the bare drum at the same time 2 37 DRUM CHARGE 20 September 1999 If the humidity drops the drum potential goes up to a higher ve voltage even if the charge roller voltage supply stays the same efficiency of voltage transfer is higher with lower humidity As a result less toner is transferred to ID sensor pattern B If the sensor output reaches a certain point the drum charge voltage will be reduced To determine whether to change the drum charge roller voltage the machine compares Vsdp with Vsg Vsdp Vsg gt 0 95 Reduce the magnitude of the drum charge voltage by 50 V Vsdp 0 90 Increase the magnitude of the drum charge voltage by 50 V 2 5 2 ID SENSOR PATTERN PRODUCTION TIMING The ID sensor pattern is not made every page or every job It is only made in the following conditions e During warming up at power on e f the machine starts warming up after a certain
131. age density will be changed 7 20 20 September 1999 ELECTRICAL COMPONENT DEFECTS 7 5 2 SWITCHES Component Main 281 1 2 The machine does not turn on PSU Shorted The machine does not turn off pen The Cover Open indicator is not lit even if Right Upper 324 8 P the right upper cover is opened Cover IOB The Cover Open indicator is lit even if the Shorted right upper cover is closed The Cover Open indicator is not lit even if 308 9 P the right cover is opened Right Cover IOB The Cover Open indicator is lit even if the Shorted right cover is closed Open The Cover Open indicator is not lit even if Right Lower 307 A8 the right lower cover is opened IOB Shoted The Cover Open indicator is lit even if the shorted lower cover is closed piet Babe lu 1245 The canner detect the pope paper Size lu Shorted size and misfeeds may occur when a copy is made 308 Open Open The CPU cannot detect the proper paper 227 Paper 6 7 9 10 Shorted size and misfeeds may occur when a IOB ong copy is made 308 12 Open No symptom However the image Special Paper IOB Shorted density problem will occur when using a orie thick paper The TD sensor initial setting procedure is Open not performed when a new PCU is New PCU 302 6 installed Detect IOB The TD sensor initial setting procedure is Shorted performed whenever the front cover is closed Cover Open indicator i
132. al from appearing on copies The copier scans the auto image density detection area A as shown in the diagram This corresponds to a few mm at one end of the main scan line As the scanner scans down the page the IPU on the BICU detects the peak white level for each scan line The IPU determines the reference value for the A D conversion for a particular scan line using the peak white level for that scan line Then the IPU sends the reference value data to the reference controller on the SBU When an original with a gray background is scanned the density of the gray area is the peak white level density Therefore the original background will not appear on copies Because peak level data is taken for each scan line ADS corrects for any changes in background density down the page As with previous digital copiers the user can select manual image density when selecting auto image density mode and the machine will use both settings when processing the original In the IPU After the SBU process the IPU board removes background noise resulting from the SBU BICU wiring by adjusting the white level Service Mode Original Types If the user selects a Service Mode original type with the user tools these two ADS process can be either enabled or disabled SP4 936 SP4 937 and the amount of white level change for the IPU ADS process can be adjusted SP4 938 2 7 IMAGE PROCESSING 20 September 1999 2 2 4 IPU IMAGE PROCESSING UNIT
133. ansport Clutch Fusing A267V302 WMF 20 September 1999 COPY PROCESS 1 7 COPY PROCESS 1 7 1 OVERVIEW o M c A267V401 WMF A267V101 WMF 1 EXPOSURE A xenon lamp exposes the original Light reflected from the original passes to the CCD where it is converted into an analog data signal This data is converted to a digital signal processed and stored in the memory At the time of printing the data is retrieved and sent to the laser diode For multi copy runs the original is scanned once only and stored to the memory 2 DRUM CHARGE In the dark the charge roller gives a negative charge to the organic photo conductive OPC drum The charge remains on the surface of the drum because the OPC layer has a high electrical resistance in the dark COPY PROCESS 20 September 1999 3 LASER EXPOSURE The processed data scanned from the original is retrieved from the memory and transferred to the drum by a laser beam which forms an electrical latent image on the drum surface The amount of charge remaining as a latent image on the drum depends on the laser beam intensity which is controlled by the BICU board 4 DEVELOPMENT The magnetic developer brush on the development rollers comes in contact with the latent image on the drum surface Toner particles are electrostatically attached to the areas of the drum surface where the laser reduced the negative charge on
134. aration may not work correctly then a trailing image will occur ghosts of the vertical lines will continue past the bottom of the table This SP prevents this problem 2 906 Tailing Correction Changes the interval for the image shift 1 10 2 Interval specified by SP2 906 1 1 page step 1 page Forced Toner Forces the toner bottle to supply toner to the 0 No Supply toner supply unit Press 1 to start 2 908 During this process the machine supplies toner until the toner concentration in the development unit reaches a standard level However if the toner concentration does not reach a standard level the machine supplies toner for 2 minutes maximum Polygon Motor Idling 0 None Time If the user sets an original touches a key or 1 15 s opens the platen cover DF the polygon 2 255 motor starts idling to make a faster first copy However with the default 15 s the motor stops if the user does nothing for 15 2 915 s and stops 15 s after the end of a job If set at 0 the polygon motor never turns off during stand by However when the machine goes into energy saver mode the polygon motor turns off regardless of this timer temporarily if the TD sensor is defective Do 2 Fixed 1 not use settings 1 and 2 these are for 3 Fixed 2 designer s use only Toner Supply Mode Selects the toner supply mode 0 Sensor 1 Normally only use setting 0 Change to 3 1 Sensor 2 2 921 4 21 SERVICE PROGRAM MODE
135. at the 7 909 same time to reset the counters If the reset was successful the beeper will sound 5 times If it failed the beeper will sound only twice Jam Code Display Displays the jam codes The order of the jam display is as follows 7 910 e Newest paper jam code e Newest original jam code e Paper jam codes in numerical order Original jam codes in numerical order 4 58 20 September 1999 SERVICE PROGRAM MODE Class CM 1 and 2 ID NEN Error Displays the number of ID sensor errors MM 7 911 Counter Display have occurred ID Sensor Error Resets the ID sensor error counter 7 912 Counter Reset 1 Yes p Timer Counter Displays the total time that the main switch 7 991 Display has been turned on 4 59 SERVICE PROGRAM MODE 20 September 1999 4 2 3 TEST PATTERN PRINTING SP4 417 AND SP5 902 Input the level 3 number for the test pattern you need Press the lt 2 Interrupt key on the display to access the copy mode display Select the required copy features such as paper size image density and reproduction ratio Press the 2 key to print the test pattern After checking the test pattern exit copy mode by pressing the 3 Interrupt key again 6 Exit SP mode 9 Test Pattern SP5 902 No Print Vertical Lines single dot Horizontal Lines single dot Vertical Lines double dots Horizontal Lines double dots Grid Pattern single dot Grid Pattern double dots 9 Test
136. ay Unit ARDF APS Lamp Scanner Operation Sensors Stabilizer Motor Panel LCT PSU Bridge Clutches Ther By pass Duplex 1 Bin Tray Unit Finisher Sensors Solenoids mistor 5 D D 2 A267V500 WMF 1 17 BOARD STRUCTURE 20 September 1999 1 8 2 DESCRIPTION 1 BICU Base Engine and Image Control Unit The main board controls the following functions e Engine sequence e Scanner laser printer engine e Timing control for peripherals Image processing video control Operation control e Various application boards fax printer scanner e Machine control system control 2 IOB Board The IOB handles the following functions Drive control for the sensors motors and solenoids of the printer and scanner High voltage control board control e Serial interfaces with peripherals e Fusing control 3 SBU Sensor Board Unit The SBU deals with the analog signals from the CCD and converts them into digital signals 4 Mother Board Option This board interfaces the BICU with the printer controller and or the scanner controller The mother board is part of the expansion box option 20 September 1999 SCANNING 2 DETAILED SECTION DESCRIPTIONS 2 1 SCANNING 2 1 1 OVERVIEW Detailed Descriptions A265D506 WMF The original is illuminated by the exposure lamp a xenon lamp in this model A The image is reflected onto a CCD charge coupled device B via the 1st 2nd
137. ay if the paper size cannot be detected If the paper size actuator is broken or if there is no tray installed the Add Paper indicator will light When the paper size actuator is at the mark the paper tray can be set up to accommodate one of a wider range of paper sizes by using user tools If the paper size for this position is changed without changing the user tool setting a paper jam will result 2 63 PAPER FEED 20 September 1999 2 8 9 SPECIAL PAPER SETTING B A267D703 WMF When feeding thick paper and envelopes the user must use the 2nd paper tray if the optional by pass table is not installed and turn lever A to the right Then when sliding the tray into the machine the lever does not push the special paper switch B it stays off and the machine detects that there is special paper in the 2nd paper tray When the machine detects the special paper signal the fusing temperature and the transfer roller current will be changed as follows 1 Fusing temperature Current operation temperature 10 C 2 Transfer roller current width 11 14 uA B4 width 10 15 uA A4 width 8 5 17 uA 5 width 5 5 20 uA Note that for the by pass tray the fusing and transfer conditions for special paper are also applied if the user uses thick non standard mode 20 September 1999 PAPER FEED 2 8 10 SIDE AND END FENCES A oo an
138. cale P Matrix Filter Text Photo Grayscale P Matrix Filter Photo Grayscale P Matrix Filter Text Photo Binary 20 September 1999 Service Mode original type setting Selects the scanner gamma curve If 0 is selected selected the scanner gamma curve is either 1 AE AE or NAE depending on the setting for the 2 NAE other original types in the same mode e g 3 Linear AE linear for text greyscale as used when pale normal or generation modes are selected See Detailed Descriptions Image Processing for details Normally do not change the value Selects the error diffusion matrix filter in text 6 mode with grayscale processing This adjustment is only effective for the Service Mode original type setting See Detailed Descriptions Image Processing for details Normally do not change the value Selects the error diffusion matrix filter in text photo mode with grayscale processing Selects the dither matrix filter in photo mode A larger number increases the number of gradations but may reduce the contrast This adjustment is only effective for the Service Mode original type setting See Detailed Descriptions Image Processing for details Selects the error diffusion matrix filter in text photo mode this SP is used only with dynamic thresholding This adjustment is only effective for the Service Mode original type setting See Detailed Descriptions Image Proc
139. ctor Reset the ID sensor error counter SP 7 912 6 16 20 September 1999 FUSING EXIT 6 5 FUSING EXIT 6 5 1 FUSING UNIT NCAUTION Allow time for the unit to cool before doing the following procedure A267R501 WMF 1 Release the duplex unit if it has been installed and open the right cover 2 Remove the fusing unit A 2 screws 6 5 2 THERMISTOR vcio 5 Er on Cs og A267R502 WMF 1 Remove the fusing unit See Fusing Unit 2 Replace the thermistor A 1 screw 1 connector 6 17 FUSING EXIT 20 September 1999 6 5 3 THERMOFUSE A267R507 WMF D A267R504 WMF Remove the fusing unit See Fusing Unit Remove the fusing upper cover A 4 screws Remove the pressure springs B Remove the hot roller stripper bracket C 3 screws Replace the thermofuse D 2 screws Vr dec m 20 September 1999 FUSING EXIT 6 5 4 HOT ROLLER AND FUSING LAMP 6 ow B A267R506 WMF rm 5 Er os on os az og Remove the fusing unit See Fusing Unit Remove the fusing upper cover See Thermofuse Remove the pressure springs See Thermofuse Remove the hot roller stripper bracket See Thermofuse Remove the fusing lamp 2 screws and hot roller assembly A NOTE Do not touch the surface of the fusing lamp with bare hands 6 Replace the hot roller B 2 C rings 1 gear 2 bushings NOTE 1 Before installing the new ho
140. cture Processing Grayscale Processing A265D509 WMF 2 11 IMAGE PROCESSING 20 September 1999 SP Modes for Each Image Processing Step The following tables show which SP modes are used for each step in image processing mode There are also some SP modes specifically for use with the positive negative feature 4 403 Can be used to disable greyscale processing for this feature 4 947 MTF e 4 948 Dynamic threshold maximum and minimum limits Text Mode Binary Picture Processing Text Mode Normal Sharp Service Mode ADS SBU As selected at the operation panel As on the op panel 4 936 4 ADS IPU As selected at the operation panel As on the op panel 4 937 4 4 938 4 Shading Correction Enabled Enabled White Line Correction Enabled 4 942 Enabled 4 918 4 Black Line Correction Enabled DF only 4 943 Enabled DF only 4 943 Strong DF only 4 919 4 Scanner y Correction AE li Linear 4 928 4 Small Smoothing Filter Main Scan Magnification Not used Normal Enabled Normal 4 921 3 Mirroring Enabled only in the ADF mode MTF Smoothing Filter MTF Medium MTF Weak MTF Weak 4 915 23 34 4 916 23 34 Independent Dot Erase Weak 4 944 Enable disable Strong 4 917 3 ID y Correction Text normal Text sharp Text sharp 4 940 4 Gradat
141. d The CPU can recognize the original size from the combination of on off signals from the APS sensors If the copy is made with the platen fully open the CPU decides the original size from the sensor outputs when the Start key is pressed 2 3 SCANNING 20 September 1999 A265D505 WMF Original Size Length Sensor Width Sensor PAIAS DET L3 L2 w2 wi version version A3 11 x17 B4 10 x 14 Foolscap 8 5 x 13 A4 L 8 5 x 11 B5 L A4 S 11 x 8 5 B5 S A5 L A5 S A rm x X Xx x x x O O x X O gt lt gt lt gt lt x O NOTE 1 L Lengthwise S Sideways O High paper present X Low 2 The length sensors L3 and L4 are used only for 230V machines For other combinations CANNOT DETECT ORIG SIZE will be indicated on the operation panel display if SP 4 303 is kept at the default setting The above table shows the outputs of the sensors for each original size This original size detection method eliminates the necessity for a pre scan and increases the machine s productivity However if the by pass feeder is used note that the machine assumes that the copy paper is lengthwise For example if A4 sideways paper is placed on the by pass tray the machine assumes it is A3 paper and scans the full A3 area for the first copy of each page of the origi
142. d while the main switch is on If the optional tray drum and optics anti condensation heaters have been installed keep the copier power cord plugged in even when the copier main switch is turned off This keeps the heaters energized 4 2 20 September 1999 SERVICE PROGRAM MODE 4 2 SERVICE PROGRAM MODE 4 2 1 SERVICE PROGRAM MODE OPERATION The service program SP mode is used to check electrical data change modes and adjust values Service Program Access Procedure How to Enter the SP Mode 1 Press the following keys in sequence NOR ONG Hold the C2 Clear Stop key for more than seconds 2 A menu of SP modes is displayed on the LCD Serviceman Select Number m 1 Copy 2 Fax 3 Printer 4 Scanner A2675532 Ver 1 37NA A265M502 WMF NOTE 1 The installed applications appear as 1 Copy 2 Fax 3 Printer 4 Scanner If an application is not installed the application name does not appear 2 The meaning of the bottom line is as follows e A267XXXX is the part number of the BICU board software e ver X X is the BICU board software version 3 Press the number for the application which you need e g press 1 for copier Then the application s SP mode display will appear as shown Serviceman P Mode SP MODE C1 Select Set Class 1 No 1 Feed CP A265M503 WMF How to Exit SP Mode Press the Back and Exit keys or Clear
143. des key operator code and key operator printer counter Set this SP to 1 Then press down the Original Type key and the key or key at the same time to reset the data If the reset was successful the beeper will sound 5 times If it failed the beeper will sound only twice displayed in the LCD or not If this is 0 it does not display or print out in the counter print out Asia and Taiwan versions only Select the default language of SP5 808 This value will not reset when Memory All Clear SP5 801 is done 0 UK Asia version 1 TW Selects whether the fax mode key is accepted when an SC has occurred When an SC occurs while there are received fax messages in the SAF memory change the value to 1 Then access facsimile mode Then forward the incoming data to another fax machine by using the fax mode bit switches This SP is for designers only Do not 0 No perform this SP 1 Yes This SP is for designers only Do not 0 No perform this SP 1 Yes Selects whether the image can be rotated or 0 Enabled not 1 Disabled Selects whether the blank page is made on the front side or back side when duplex copy Side mode is selected 4 49 SERVICE PROGRAM MODE 20 September 1999 Class Class 1 and 2 3 5 944 APS Mode Setting Selects whether APS mode is selected as 0 Disabled the power up default 1 Enabled Auto Off Disabling Selects whether auto off is disabled when 0 No
144. e between the ADF main board and the IOB SC770 Shift tray motor error optional shift tray unit Definition B The shift tray half turn sensor is not activated within a certain time after the shift tray motor turned on Possible causes e Shift tray motor defective e Shift tray half turn sensor defective SC900 Electrical total counter error Definition B The electrical total counter is not working properly Possible Causes e NVRAM defective SC901 Mechanical Total Counter Definition B The mechanical total counter is not working properly Possible Causes e Mechanical total counter defective defective Disconnected mechanical total counter 7 14 20 September 1999 SERVICE CALL CONDITIONS SC921 EMB Copier feature expander hardware error Definition B The hardware of the MSU is defective Possible Causes e Copier feature expander defective BICU defective 5 980 Program loading error Definition A The program cannot load properly Possible Causes e The connection between the BICU and the IC board is poor BICU board defective board or the program defective NOTE This SC should be cleared by trying to download again from an IC card SC990 Communication error between BICU and IOB Definition B The BICU board cannot communicate with the IOB Possible Causes e The connection between the BICU board and the IOB is poor BICU board defective
145. e lt 2 Interrupt key on the operation panel to access the copy mode display Select the paper size Press the Start key on the operation panel to print the list 5 After printing the list exit copy mode by pressing the lt 3 Interrupt key on the operation panel 6 Exit SP mode 4 69 SERVICE PROGRAM MODE 20 September 1999 4 2 8 ORIGINAL JAM HISTORY DISPLAY SP7 905 After entering the SP mode select 1 and press the OK or 8 key The following message is displayed 1 Jam rev 01 0 06 55 51 Code 210 Org Size 4 T C 138 8 7 A265M508 WMF 1 Jam history number 5 Second 2 Main motor operating time Date 6 Jam code see the table below 3 Hour 7 Original size 4 Minute 8 Total counter value at the original jam occurred Jam Code Meaning 210 Original does not reach the registration sensor 211 Original caught at the registration sensor 212 Original does not reach the feed out sensor 213 Original caught at the feed out sensor 214 Original does not reach the inverter sensor 215 Original caught at the inverter sensor 216 Short interval between originals 218 No original at the stamp NOTE The NVRAM can store data for up to 10 copy jams If more than 10 copy jams occur the oldest data will be erased 4 70 20 September 1999 SERVICE PROGRAM MODE 4 2 9 MEMORY ALL CLEAR SP5 801 NOTE Memory All Clear mode resets all the settings and counters stored in the
146. e download procedure 7 Turn off the main switch then remove the IC card 20 September 1999 SERVICE PROGRAM MODE NVRAM Data Upload SP5 824 A265M514 WMF A265M500 WMF Turn off the main switch Remove the application cover A 1 screw Plug the flash memory card B into the card slot NOTE Make sure that the surface printed A faces the rear side of the machine as viewed from the front of the machine Turn on the main switch Access SP mode 5 824 6 The machine erases the current settings then writes the machine s settings to the flash memory card This takes about 60 seconds If uploading failed an error message appears see Program Download At this time repeat the upload procedure 7 Turn off the main switch then remove the IC card 4 75 SERVICE PROGRAM MODE 20 September 1999 4 2 12 APS AND PLATEN DF COVER SENSOR OUTPUT DISPLAY SP4 301 230V Machine 115V Machine A265M511 WMF A265M512 WMF 1 2 3 mml T 00001100 81 2 x 14 L1 L3 W2 L2 L4 Wi A265M513 WMF 1 Platen cover sensor status 1 Closed 2 APS sensor status 1 Paper detected 3 Paper size display 20 September 1999 SERVICE PROGRAM MODE 4 2 13 DF APS SENSOR OUTPUT DISPLAY SP6 901 L1 L2 gt eae A250M600 WMF Large Small W1 0 0 1 1 W2 0 1 0 1 1 2 3
147. elects the thresholding type used during 0 Dynamic Text Photo gradation processing dynamic or constant 1 Static Only used for binary picture processing See Detailed Description Image Processing for details Normally do not change the value P Binary Threshold Adjusts the constant threshold used during 0 255 binary picture processing 1 step This adjustment is only effective for the 96 Text Service Mode original type setting If Static is selected with SP4 922 1 this SP is effective See Detailed Descriptions Image Processing for details P Binary Adjusts the maximum value of the dynamic Threshold MAX binary threshold used at the edges of text elements Only used for binary picture processing This adjustment is only effective for the Text Service Mode original type setting If Dynamic Binary is selected with SP4 922 1 this SP is effective See Detailed Descriptions Image Processing for details 4 36 20 September 1999 SERVICE PROGRAM MODE No Adjusts the minimum value of the dynamic binary threshold used at the edges of text elements Only used for binary picture processing This adjustment is only effective for the Text Service Mode original type setting If Dynamic Binary is selected with SP4 922 1 this SP is effective See Detailed Descriptions Image Processing for details P Binary Threshold Adjusts the thre
148. emperature control cycle is 1 or 3 seconds For European models this SP mode is effective in the stand by mode and energy saver mode only If this is 1 the power supply fluctuates less when the fusing lamp turns on See Detailed Descriptions Fusing Unit for details 4 6 20 September 1999 SERVICE PROGRAM MODE Fusing Soft Start For European models only Setting Selects whether the fusing temperature Printing control cycle is 0 5 or 1 seconds during printing If this is 1 the power supply fluctuates less when the fusing lamp turns on See Detailed Descriptions Fusing Unit for details Fusing Nip Band Checks the fusing nip band Check Auto Re start Interval AC Frequency Displays the fusing lamp power control Display frequency which is detected by the zero cross signal generator Under 54 equals 50 Hz Otherwise 60 Hz Feed Clutch Re Adjusts the paper feed amount allowed by 0 10 energize the clutch see the table below after 1 mm step By pass Feed correcting the skew at registration Paper Feed Station Clutch Defaults i u By pass 6 By pass Feed Upper Rela HA oe 0 1st Paper Tra 1st Paper Feed i Other Paper Trays Upper Relay Other 0 When paper jams occur after restarting Feed Clutch Re paper feed after registration increase the energize value to help the registration roller feed the 1st Paper Tray paper Feed Clutch Re energize Other Pape
149. ensor initial setting SP3 927 after cleaning blower brush PAPER FEED Registration Rollers Clean with water Paper Feed Roller Clean with water Friction Pad Dry cloth Paper Feed Guides Clean with alcohol Relay Rollers Clean with water Bottom Plate Pad Clean with water O OIOIOIOJIOIOo Registration Roller Mylar O O O O 3 DO O O O O O OIOIOIZ ZO Clean with water FUSING UNIT AND PAPER EXIT Fusing Entrance and Exit Guide Plates Clean with water or alcohol Hot Roller Pressure Roller PM TABLE 20 September 1999 A265 A267 EM 120K 240K 360K NOTE Fusing Thermistor C C C Clean if necessary suitable solvent Cleaning Roller C C C Clean with water or alcohol Cleaning Roller C C C Clean with water or alcohol Bushings Hot Roller Strippers R R R Hot Roller Bushing Clean if necessary Paper Exit Guide C C C Clean with water or alcohol Ribs OTHERS Main Motor Drive Gear Silicone Grease G501 see note 1 EM 120K 240K 360K NOTE ADF for originals Pick up Roller C R R R Clean with water Feed Belt C R R R Clean with water Separation Roller C R R R Clean with water Stamp Replace if necessary ADF Exposure Glass C C C C Clean with alcohol White Plate C C C C Clean with alcohol Platen Sheet C C C C Clean with alcohol PAPER TRA
150. ep 5 5 Access SP mode 5 827 6 Press 1 key then press the OK button to download the software 7 The machine erases the current software then writes the new software to the BICU This takes about 60 seconds If downloading failed an error message appears as follows At this time repeat the download procedure 8 After finishing the software download turn off the main switch and remove the IC card 20 September 1999 Display during writing Display when the download is complete Display if writing failed SERVICE PROGRAM MODE Serviceman P Mode Program Download Status 1 02254 1 05 NA 04 1 11 02 A265M506 WMF Serviceman P Mode Program Download Completed Sum 4F2F 1 05 04 1 11 02 Cran gt oe A265M504 WMF Serviceman P Mode Program Download Loading error 041 11 02 Cre Cat 9X 88 A265M505 WMF NOTE To see the current firmware version check SP 7 801 2 Program Upload SP5 826 Turn off the main switch Plug the flash memory card A into the card slot see previous page NOTE Make sure that the surface printed A faces the rear side of the machine as viewed from the front of the machine 3 Turn on the main switch Access SP mode 5 826 5 The machine erases the current software then writes the new software to the flash memory card This takes about 60 seconds If uploading failed an
151. equired value 3 Exit SP mode 55 using the key before entering the 4 4 20 September 1999 SERVICE PROGRAM MODE 4 2 2 SERVICE PROGRAM MODE TABLES NOTE 1 In the Function column comments are in italics 2 In the Setting column the default value is in bold letters 3 An asterisk after the mode number means that this mode is stored in the NVRAM If you do a RAM reset all these SP modes will be return to their factory settings 4 SP4 915 to 4 941 When the SP mode name has a prefix of P the adjustment is only effective when the user selects an original type of Service Mode User Tools General Features 09 Image Adjustment Mode No Class Class 1 2 3 Leading Edge Adjusts the printing leading edge registration 9 0 9 0 Registration from each paper feed station using the 0 1 mm step Paper Tray Feed Trimming Area Pattern SP5 902 No 10 0 0 mm Use the 2 key to toggle between and before entering the value The specification is 3 2 mm See Replacement and Adjustment Copy Adjustment for details Leading Edge Registration By pass Feed Leading Edge 3 Registration Duplex Side to Side Registration 1st Paper Feed Side to Side 2 Registration 2nd Paper Feed Side to Side Registration 8rd Paper Feed optional PFU tray 1 or optional LCT Side to Side Registration 4th Paper Feed optional PFU
152. er Copy Mode Erase Copy Counter Copy Mode Preset Stamp Copy Counter Copy Mode Page Number Copy Counter Copy Mode Cover Sheet Copy Counter Copy Mode OHP Slip Sheet Copy Counter Copy Mode Sort Copy Counter Copy Mode Staple Copy Counter 15 Copy Mode ADF 4 54 20 September 1999 SERVICE PROGRAM MODE Class 1 2 7 305 7 401 7 402 Mode No Copy Counter Displays the total number of series copies Copy Q ty 1 to 1 Copy Counter Q ty 1 to 2 py Counter re 1 to 6 Copy Counter 1 to 11 copy Counter tig Q ty 1 to 21 that have occurred Each SC Code Displays the total number of each service Counter call that has occurred 1 Yes Jam Counter Displaysthetotalnumberofjams Total Paper Jam Displays the total number of paper jams Counter Total Original Jam Displays the total number of original jams 7 503 Counter m Jams by Displays the total number of paper jams by Location location m Jam Jams by Location B Jam Jams by Location Hn Jam Jams by Location D Jam Jams by 7 els Location R Jam 15 Jams by Location B Jam Jams by Location M Jam Jams by Location 1st H Jams by Location 4 55 Service Tables SERVICE PROGRAM MODE 20 September 1999 Class 1and2 Total Jams by Displays the total number of paper
153. er tray to the copier The friction pad B allows only one sheet to feed at a time The friction pad applies pressure to the feed roller with a spring C The friction pad pressure cannot be adjusted 20 September 1999 PAPER FEED 2 8 4 PAPER BT MECHANISM Detailed Descriptions A265D521 WMF A265D522 WMF The paper size switch detects when the tray is pushed in When the paper tray is pushed into the machine the pin A for the lift motor pressure shaft engages the lift motor coupling B and the pin C for the bottom plate lift shaft in the tray engages the bottom plate pressure lever coupling D The pin E on the rear of the tray pushes the lock lever so that the lift motor can lift the bottom plate pressure lever The lift motor turns on and turns clockwise as shown in the diagram The main pressure spring K pulls the bottom plate pressure lever and this lifts the tray bottom plate When the top of the stack touches the feed roller the motor cannot pull up the plate any more so it pulls the actuator G into the lift sensor F Then the lift motor stops The pressure of the feed roller on the paper is now too high so the lift motor reverses a certain time 200 ms or 600 ms depending on the paper size to reduce this pressure For smaller paper it reverses the larger amount 600 ms to reduce the pressure more NOTE The relationship between the bottom plate pressure adjustment paper size thresholds and t
154. erature Adjustment Special Paper Fusing Temp Display Fusing Soft Start Adjustment Stand by Energy saver Fusing Soft Start Adjustment Printing Fusing Soft Start Setting Stand by Energy saver power En PE 2 With a lower value the machine takes more 80 C time to reach the ready condition Adjusts the additional fusing temperature for 0 20 the special paper mode selected by the 1 C step lever on the 2nd paper tray also for the 10 C bypass tray all paper types Displays the fusing temperature a Press the Clear Modes key to exit the display Adjusts the number of zero cross cycles of the fusing lamp ac supply needed for the fusing lamp power to reach 100 Use a higher number if the customer complains about sudden power dropouts For European models this SP mode is effective in the stand by mode and energy saver mode only See Detailed Descriptions Fusing Unit for details on SP1 107 For European models only Adjusts the number of zero cross cycles of the fusing lamp ac supply needed for the fusing lamp power to reach 100 when raising the temperature during printing Use a higher number if the customer complains about sudden power dropouts See Detailed Descriptions Fusing Unit for details on SP1 107 N America 0 3 times 1 10 times 2 20 times Europe Asia 5 times 10 times 20 times 5 times 10 times 20 times Selects whether the fusing t
155. error message appears At this time repeat the upload procedure 6 Turn off the main switch then remove the IC card 4 73 SERVICE PROGRAM MODE 20 September 1999 4 2 11 NVRAM DATA DOWNLOAD After doing the memory all clear procedure NVRAM data will be reset to their default settings So it is necessary to upload the NVRAM data before clearing the NVRAM and to download the NVRAM data afterwards e SP5 824 Uploads from the BICU to a flash memory card e SP5 825 Downloads from a flash memory card to the BICU NVRAM Data Download SP5 825 NOTE This procedure downloads all the settings stored in the NVRAM except for the following items Electrical total counter value SP7 003 e Machine serial number SP5 811 SP5 920 SP5 925 Plug amp Play brand name and production name setting SP5 907 e Some SBU settings SP4 904 3 SP4 904 4 SP4 906 SP4 909 ll A A265M514 WMF A265M500 WMF 1 Turn off the main switch Remove the application cover A 1 screw 3 Plug flash memory card B into the card slot NOTE Make sure that the surface printed A faces the rear side of the machine as viewed from the front of the machine 4 Turn on the main switch 5 Access the SP mode 5 825 6 The machine erases the current settings then writes the new settings onto the NVRAM on the BICU board If downloading failed an error message appears see Program Download At this time repeat th
156. essing for details Normally do not change the value 4 38 20 September 1999 SERVICE PROGRAM MODE P Matrix Filter Selects the dither matrix filter in photo Photo Binary mode A larger number increases the number of gradations but may reduce the contrast 5 This is a special dither matrix designed to emphasize the edges of graphic and text objects This adjustment is only effective for the Service Mode original type setting See Detailed Descriptions Image Processing for details P Edge Threshold Adjusts the threshold for edge detection in Vertical each direction for dynamic thresholding Only used for binary picture processing This adjustment is only effective for the P Edge Text Service Mode original type Threshold setting Horizontal If Dynamic Binary is selected with SP4 P Edge 922 1 this SP mode is effective See 4 933 Threshold Right Detailed Descriptions Image Processing for details P Edge Normally do not change the value 4 934 These cett Right Diagonal top right to bottom left Left Diagonal top left to bottom right P Line Width This adjustment is only effective for the 1 Correction Service Mode original type setting Text Grayscale Adjusts the line width If 0 is selected this P Line Width mode is disabled See Detailed Correction Descriptions Image Processing for details Text Photo Grayscale Settings 1 to 3 make lines thinner 1
157. etails on 3 75 SP1 909 Selects the small size threshold for the 2nd 0 None paper tray Not used 0 means that this setting is not used 1 HLT A5 details on SP1 909 Selects the middle size threshold for the upper tray Not used 0 means that this setting is not used 1 HLT A5 The value must be larger than the small size 2 4 threshold SP1 909 8 The size used by 3 LT SP1 909 is determined by paper width See 4 DLT Paper Lift Mechanism for details on SP1 5 909 4 11 SERVICE PROGRAM MODE Pressure Adjustment Normal Size Optional PFU 3rd Bottom Plate Pressure Adjustment Small Size Optional PFU 3rd Bottom Plate Pressure Adjustment Middle Size Optional PFU 3rd Bottom Plate Pressure Re adjustment Small Size Optional PFU 20 September 1999 SP1 910 9 this SP adjusts the upper paper 1 ms step lift motor reverse time for paper sizes larger 200 ms than the small size threshold set with SP1 910 8 If a middle size threshold is stored with SP1 910 9 then this SP adjusts the motor reverse time for sizes larger than the middle size Do not input a value greater than 1200 Use this SP when a paper feed problem occurs from the 3rd paper tray See Optional Paper Tray Unit Paper Lift Mechanism for details on SP1 910 Adjusts the upper paper lift motor reverse 0 2000 time for paper of the same size as or smaller 1 ms step than the small size thres
158. f the D A converter 0 255 for the AGC gain curve for DC cont for the 1 step EVEN channel 25 Do not change the value However after doing a memory all clear SP5 801 use it to re input the previous value Adjusts the coefficient of the D A converter 0 255 for the AGC gain curve for DC cont for the 1 step ODD channel 25 Do not change the value However after doing a memory all clear SP5 801 use it to re input the previous value Adjusts the coefficient of the D A converter for the AGC gain curve for scanning the white plate Do not change the value Displays the number of convergences for SBU reference control Do not use in the field Adjusts the coefficient of the D A converter for the offset Z C for the analog image data 1 step processing for EVEN Do not change the value However after performing the memory all clear SP5 801 use it to re input the previous value processing for ODD Do not change the value However after performing the memory all clear SP5 801 use it to re input the previous value 4 27 SERVICE PROGRAM MODE SBU AE Cont Adjustment Scanner Motor Control DF Shading Interval Time P MTF Coefficient Text Grayscale Main 25 29 P MTF Coefficient Text Grayscale Main 3096 7696 P MTF Coefficient Text Grayscale Main 77 154 P MTF Coefficient Text Grayscale Main 155 256 P MTF Coefficient Text Grayscale Ma
159. g 20 September 1999 Text Photo Mode Photo Priority Text Priority Service Mode As on the op panel ADS SBU As selected at the operation panel 4 936 5 As on the op panel ADS IPU As selected at the operation panel 4 937 5 4 938 5 Shading Correction Enabled Enabled MM Enabled Enabled White Line Correction 4 942 4 918 5 Enabled DF only Enabled DF only Strong DF only Black Line Correction 4 943 4 943 4 919 5 As op panel Scanner y Correction AE linear 4 928 5 1 Normal Small Smoothing Filter Not used Normal 4 921 4 Main Sean Enabled Magnification Mirroring Enabled only in the ADF mode MTF Weakest MTF Smoothing Filter MTF Weak MTF Weakest 4 915 35 48 4 916 35 48 Weak Weak 4 944 Enable disable 4 917 4 T vus Text Priority ID y Correction Photo priority Text Priority 4 940 5 Gradation Error diffusion Constant Threshold Constant 4 922 2 4 929 4 Independent Dot Erase None after image process Thicker Lines Line Width Correction Disabled strong 4 935 5 2 14 20 September 1999 IMAGE PROCESSING Text Photo Mode Grayscale Processing Text Photo Mode Photo Service Text Priority Normal Priority Mode ADS SBU As selected at the operation panel ares As op panel ADS IPU As selected at the operation panel 4 937 2 4 938 2 Shading Correction En
160. g Normally independent dot erase is done in the filtering stage However when the user selects Service Mode for Text original type independent dots may reappear in the image after the binary picture processing These independent dots are erased after gradation processing SP4 939 changes the filter that is used for this process and it can be also used to disable this feature A smaller matrix is more likely to remove dots 2 24 20 September 1999 IMAGE PROCESSING ID Gamma y Correction The machine automatically selects the most appropriate ID gamma correction based on the selected original type and the user tool Image Adjustment setting and ID setting made at the operation panel When the user selects Service Mode for any original type you can use 5 4 940 to change ID correction in service mode The types that can be selected with 5 4 940 are different for each original mode Text Text Photo or Photo os oo an e Gradation Processing Overview There are four types of gradation processing Refer to the Default Image Processing Mode for Each Original Type section for more details on which processes are used for each original mode Grayscale processing This has 4 output levels for each pixel e Binary picture processing This has only two output levels black and white e Error diffusion This is used with either grayscale processing or binary picture processin
161. g mode e Dithering This is used with either grayscale processing or binary picture processing mode Grayscale Processing In this machine the 8 bit image data is converted into 2 bit data This produces up to 4 image density levels for each pixel To realize this this machine uses a form of pulse width modulation In this machine pulse width modulation consists of the following processes Laser diode pulse positioning Laser diode power pulse width modulation Laser diode power and pulse width modulation is done by the laser diode drive board LDD Briefly the width of the laser pulse for a pixel depends on the output level image density level from 0 to 255 required for the pixel This machine can also change the laser pulse position at the left side of the pixel at the center or at the right side automatically depending on the location of the image pixel so that the edges of characters and lines become clearer There is no SP mode adjustment for this unlike in some earlier models Note that although the LDD can create 256 levels per pixel the machine only uses 16 of these and only four are used for any one job A gamma table determines which four output levels are used The gamma table is different for each original type setting IMAGE PROCESSING 20 September 1999 Binary Picture Processing The 8 bit image data is converted into 1 bit data black and white image data Constant and Dynamic Thresholding The
162. ge roller correction 1 step Vsdp Minimum When the value of Vsdp Vsg is less than this 90 value the charge roller voltage increases by 50V e g from 500 to 550 The size of the increase depends on SP 2 005 3 Charge Roller Bias Adjusts the upper threshold value for the 0 100 Correction charge roller correction 1 step Vsdp Maximum When the value of Vsdp Vsg is greater than 95 this value the charge roller voltage decreases by 50V e g from 550 to 500 The size of the decrease depends on SP 2 005 3 Charge Roller Bias Adjusts the size of the charge roller voltage 0 200 Correction Step correction 1 V step 50V Erase Margin 0 0 9 0 Adjustment The specification is 3 2 mm See 0 1 mm step Leading Edge Replacement and Adjustment Copy 3 0 mm Adjustment for details Erase Margin Adjusts the trailing edge erase margin for 0 0 9 0 Adjustment paper of length 216 mm or less 0 1 mm step Trailing Edge The specification is 3 2 mm See 2 0 mm Small Paper Size Replacement and Adjustment Copy Adjustment for details Erase Margin Adjusts the trailing edge erase margin for 0 0 9 0 Adjustment paper of length 216 1 297 mm 0 1 mm step Trailing Edge The specification is 3 2 mm See 3 0 mm Middle Paper Size Replacement and Adjustment Copy Adjustment for details Erase Margin Adjusts the trailing edge erase margin for 0 0 9 0 Adjustment paper longer than 297 mm 0 1 m
163. harged toner on the drum surface from transferring to the transfer roller 2 Atacertain time after the low transfer current has been supplied to the roller 13uA paper fed from the paper tray is applied to the roller to transfer the toner to the paper 3 After the trailing edge of the paper has passed through the roller transfer current turns off In multiple copy mode the transfer current shifts again to the low transfer current The default transfer roller current high transfer current level is as shown in the following table The transfer current can be adjusted using SP2 301 except for the low transfer current By pass Tray Thick 2nd aper Size By pass Tray Duplex 2nd Side Paper Tray Normal Special Paper A3A1 x 17 A4 81 2 x 11 sideways B4 13 uA 12 uA 15 uA 4 11 x 81 2 lengthwise A5 51 2 x 81 2 sidewise 19 uA A5 81 2 x 51 2 lengthwise 15 uA 16 uA 20 uA Be careful when increasing the transfer current This might cause a ghosting effect in which part of the image at the top of the page is repeated lower down the page at a lower density It may also damage the OPC drum in the worst case 2 68 20 September 1999 IMAGE TRANSFER AND PAPER SEPARATION 2 9 3 TRANSFER ROLLER CLEANING If the paper size is smaller than the image or if a paper jam occurs during printing toner may be transferred to the roller
164. he key twice then set the paper to start this feature Press the C Clear Stop key to stop Stamp Position Adjusts the stamp position in the sub scan Adjustment direction in fax mode ADF APS Data Displays the status of the original size Display sensors in the ADF See the DF APS Original Sensor Output Display section ADF Scanning Selects the original scanning method in ADF 0 Doc Method mode original Do not change the setting 1 Mag copy paper size magnificatio n ARDF Skew Selects whether the skew correction is done 0 No Correction or not when the ARDF feeds the rear side of 1 Yes the original ARDF Original Curl Adjusts the amount of original buckle at the 20 20 Adjustment ARDF registration roller when the ARDF 1 mm step feeds the rear side of the original 0 mm This SP mode is only effective when SP 6 905 is at 1 ADF Printer Free This SP is for the designers only do 0 No Run perform this SP mode 1 Yes 4 51 SERVICE PROGRAM MODE 20 September 1999 originals are ignored If set at 0 this function is disabled An original jam may occur when an original with binding holes is fed because these holes are detected by the sensors Use this SP to avoid this problem For example when this value is set to 12 this machine ignores binding holes within 12 mm of the trailing edge of the original x Total Operation Displays the total operation time total drum
165. he OK or key at the same time to reset the counters If the reset was successful the beeper will sound 5 times If it failed the beeper will sound only twice Copy Jam History Displays the copy jams that have occurred 0 No 7 903 Display 1 Yes Copy Jam History Resets the copy jam history Clear After selecting 1 press down the Original 7 904 Type key and the OK or key at the same time to reset the counters If the reset was successful the beeper will sound 5 times If it failed the beeper will sound only twice Orig Jam History Displays the original jams that have 0 No 7 905 Display occurred 1 Yes Orig Jam History Resets the original jam history Clear After selecting 1 press down the Original Type key and the OK or key at the same time to reset the counters If the reset was successful the beeper will sound 5 times If it failed the beeper will sound only twice Timer Counter Reset Resets the timer counter SP7 991 After selecting 1 press down the Original 7 907 Type key and the or 8 key at the same time to reset the counters If the reset was successful the beeper will sound 5 times If it failed the beeper will sound only twice PCU Counter Displays the value of the PCU counter 7 908 Display number of copies since the last PCU change PCU Counter Reset 0 No After selecting 1 press down the Original 1 Type key and the OK or 8 key
166. he copier malfunctions due to a damaged NVRAM Free Run Performs a free run for both the scanner and 0 No After selecting 1 press OK or the key twice to start this feature Press the Clear Stop key to stop Input Check Displays signals received from sensors and Switches Press the Clear Modes key to exit the program See the Input Check section for details Output Check Turns on electrical components individually for test purposes See the Output Check section for details 4 45 SERVICE PROGRAM MODE SC Code Reset 5 810 B B Display Language Group Display Language mm inch Selection Serial Number Input Service Telephone Number Telephone Service Telephone Number Facsimile 20 September 1999 Selects the display language group See Display language for details The actual display language can be selected using SP5 808 Selects the display language See Display language for details For the European version the display languages are divided into the language groups of SP5 807 Selects whether mm or inches are the display model 0 mm 1 inch American model 0 inch 1 mm Resets all level A service call conditions such as fusing errors After selecting 1 press the Original Type key and the key at the same time to reset the SC codes If the reset was successful the beeper will sound 5 times If it failed the
167. he related SP modes is explained in Bottom Plate Pressure Adjustment for Paper Size PAPER FEED 20 September 1999 For A4 width paper or wider a projection H on the side fence engages the secondary pressure spring J through a lever I Then the secondary pressure spring J applies paper feed pressure in addition to the main pressure spring K to ensure that extra pressure is applied to wider paper When the paper tray is pulled out the pins A C disengage from the couplings B D and the bottom plate drops To make it easier to push the tray in the lift motor rotates backwards 1 7 seconds to return the bottom plate pressure lever coupling D to the original position The amount of reverse can be adjusted with SP 1 912 2 8 5 PAPER END DETECTION A A265D520 WMF If there is some paper in the paper tray the paper stack raises the paper end feeler A and the paper end sensor B is deactivated When the paper tray runs out of paper the paper end feeler drops into the cutout C in the tray bottom plate and the paper end sensor is activated When the paper tray is drawn out with no paper in the tray the shape of the paper end feeler causes it to lift up 20 September 1999 PAPER FEED 2 8 6 PAPER HEIGHT DETECTION oo an e C A265D522 WMF The amount of paper in the tray is detected by the combination of on off signals from two paper height sensors
168. he toner density is too low Change the value of SP 2 201 2 to 1 or 3 If the toner density is too high Change the value of SP2 201 2 to 2 or 4 7 4 2 DIRTY BACKGROUND Do either of the following Change the value of SP2 929 1 from 2 80 V to 3 10 V e Change the value of SP2 201 1 to a value between 550V and 500V 7 18 20 September 1999 ELECTRICAL COMPONENT DEFECTS 7 5 ELECTRICAL COMPONENT DEFECTS 7 5 1 SENSORS ET SC120 is displayed 337 2 Scanner H P IOB The CPU does not detect the scanner rp home position and the scanner motor not stop 337 5 APS and ARE do not function correctly Platen Cover IOB Shorted No symptom Open Open The CPU cannot detect the original size Original Width properly APS and ARE do not function correctly Original Open Open The CPU cannot detect the original size properly APS and ARE not function md IOB correctly Original Open Open The CPU cannot detect the original size APS and ARE not function ie m ddl is z RM Paper End indicator lights even if pen 306 2 paper is placed in the 1st paper tray 1st Paper End The Paper End indicator does not light Shorted even if there is no paper in the 1st paper tray The Paper End indicator lights even if _ paper is placed in the 2nd paper tray 2nd Paper End The Paper End indicator does not light Shorted even if there is no paper in the 2nd paper tray
169. high the machine lowers the fusing temperature to 155 C when it detects that paper which is less than 216 mm width is consecutively fed 20 September 1999 IMAGE FUSING AND PAPER EXIT Fusing Lamp Control Turning on and off the fusing lamp power causes fluorescent light in the room to flicker To reduce the flickering use the following SP modes Fusing temperature detection cycle SP mode 1 108 The CPU checks the output from the fusing thermistor once a second default setting The CPU compares the current and previous temperatures Based on the result it then decides how long the fusing lamp power should be on during the next one second interval also if the current temperature is too high the power will not be needed um oo an e Starting and stopping the fusing lamp power every second causes fluorescent lighting in the room to flicker To reduce this flickering use SP1 108 to change the cycle from 1 second to 3 seconds Fusing soft start SP mode 1 107 In addition whenever the fusing lamp power switches on full power is applied to the fusing lamp gradually not all at once This prevents the power in the room from dropping suddenly This feature is known as Soft Start The machine does this by gradually allowing more power to the fusing lamp over a number of zero cross cycles of the ac supply The diagram below shows full power being applied gradually over the duration of 3 zero cro
170. hold set with SP1 1600 ms 910 8 Do not input a value greater than 1200 Use this SP when a paper feed problem occurs from the 3rd paper tray See Optional Paper Tray Unit Paper Lift Mechanism for details on SP1 910 Adjusts the upper paper lift motor reverse 0 2000 time for paper sizes larger than the small 1 ms step size threshold set with SP1 910 8 up to and 200 ms including the middle size threshold set with SP1 910 9 If a middle size threshold is not stored with SP1 910 9 this SP is not used Do not input a value greater than 1200 Use this SP when a paper feed problem occurs from the 3rd paper tray See Optional Paper Tray Unit Paper Lift Mechanism for details on SP1 910 Adjusts the upper paper lift motor forward rotation time for paper of the same size as or smaller than the small size threshold set with SP1 910 8 The motor rotates forward when the remaining paper amount is lower than the value of SP1 910 6 Use this SP when a paper feed problem occurs when paper in the 3rd paper tray is running low See Optional Paper Tray Unit Paper Lift Mechanism for details on SP1 910 4 12 20 September 1999 3rd Bottom Plate Pressure Re adjustment Middle Size Optional PFU 3rd Paper Amount Small Size Optional PFU 3rd Paper Amount Middle Size Optional PFU 3rd Small Paper Size Setting Optional PFU 3rd Middle Paper Size Setting Optional PFU SERVICE
171. hown 11 connectors 5 Remove 4 screws C securing the I O board bracket then swing down the I O board bracket D Remove the bracket E 1 screw Replace the upper paper feed clutch F 1 connector 2 0 September 1999 PAPER FEED 6 6 6 RELAY CLUTCHES X E M EC E E F A267R714 WMF Remove the optional duplex unit and or by pass tray unit if they have been installed vci 5 Er es on os of og Remove the rear cover and lower rear cover See Paper Tray Lift Motors Remove the lower right cover A 2 screws Remove the scanner right cover See Scanner Exterior Remove the right cover B 4 screws Swing down the I O board bracket See Paper Feed Clutches Remove the connector bracket C 2 screws Replace the upper relay clutch D 1 connector Remove the right back cover E 1 screw 0 Replace the lower relay clutch F 1 connector PAPER FEED 20 September 1999 6 6 7 PAPER SIZE DETECTOR SPECIAL PAPER SENSOR A267R721 WMF VN C A267R722 WMF Remove the right lower cover A See Relay Clutches Remove the paper trays Remove the paper size detector assembly 1 screw each INC Replace the paper size detectors B 1 connector each and the special paper sensor C 1 connector 20 September 1999 PAPER FEED 6 6 8 REGISTRATION SENSOR A267R718 WMF B Remove the righ
172. hreshold voltage for determining whether or not to supply toner If Vt becomes greater than the reference voltage the machine supplies additional toner 20 September 1999 DEVELOPMENT Toner Supply Motor On Time Determinations For fixed control mode the toner supply motor on time is specified by the setting of SP2 925 and does not vary The default setting is 200 ms for each copy The toner supply motor on time for each value of SP2 925 is as follows Value of SP2 925 Motor On Time t 200 ms 0 t 5 1 2 2 44 55 3 8t 4 121 5 161 6 Continuously For sensor control modes 1 and 2 the toner supply motor on time is decided by the following factors e Vt e Vref or Vts TD sensor sensitivity coefficient S value is 0 4 There are seven levels for toner supply motor on time as shown below Decision Motor On Time seconds Vts or Vref lt Vt x Vts or Vref 5 16 t 0 6 Vts or Vref Vt x Vts or Vref S 8 tx 2 1 2 Vts or Vref lt Vt lt Vts or Vref 5 4 tx 4 2 4 Vts or Vref lt Vt lt Vts or Vref 5 2 t x 8 4 8 V ts or Vref lt Vt lt Vts or Vref 45 5 tx 16 9 6 Vt Vts or Vref 4S 16 T 30 see note 3 Vt 2 Vts or Vref S toner end T 30 see note 3 NOTE 1 The value of t can be changed using SP2 922 default 0 6 second 2 The value of T can be changed using SP2 923 defau
173. ical components are active Doing so might cause damage to units such as the PCU when they are pulled out of or put back into the copier 4 1 1 PCU PHOTOCONDUCTOR UNIT The PCU consists of the OPC drum development unit charge roller and cleaning unit Follow the cautions below when handling a PCU 1 Never touch the drum surface with bare hands When the drum surface is touched or becomes dirty wipe it with a dry cloth or clean it with wet cotton Wipe with a dry cloth after cleaning with the cotton Never used alcohol to clean the drum alcohol dissolves the drum surface Store the PCU in a cool dry place away from heat Never expose the drum to corrosive gases such as ammonia gas Never shake the used PCU Doing so may cause toner and or developer to spill out 6 Dispose of used PCUs in accordance with local regulations 4 1 2 TRANSFER ROLLER UNIT 1 Never touch the transfer roller surface with bare hands 2 Take care not to scratch the transfer roller as the surface is easily damaged 4 1 3 SCANNER UNIT 1 Clean the exposure glass with alcohol or with glass cleaner to reduce the amount of static electricity on the surface of the glass Use a blower brush or a cotton pad with water to clean the mirrors and lens 3 Do not bend or crease the exposure lamp flat cable 4 Do not disassemble the lens unit Doing so will throw the lens and the copy image out of focus 5 Do not turn any of the CCD
174. idth correction type can be selected with SP4 935 IMAGE PROCESSING 20 September 1999 2 2 5 MEMORY CONTROLLER AND ENHANCED MEMORY BOARD EMB Optional DRAM 48 MB Memory Controller A265D515 WMF The BICU consists of the memory controller and the DRAM The functions of each device are as follows Memory Controller Compressing the 1 bit image data and 2 bit image data Image rotation Image data transfer to the DRAM DRAM standard 20MB Stores the compressed data Working area The data goes to the memory controller after binary picture processing or grayscale processing The data is first compressed and then stored in the DRAM For printing the data from the DRAM goes back to the memory controller where it is decompressed and image editing is done e g image rotation repeat image The memory capacity changes after installing optional memory on the BICU board as follows Standard 20 MB DD Binary picture A4 6 88 99 processing ITU T 4 12 black 32 99 Grayscale A4 6 Not available 99 processing ITU T 4 12 black Not available 52 A4 size Text mode Number of pages 2 28 20 September 1999 IMAGE PROCESSING 2 2 6 VIDEO CONTROL UNIT VCU Fine Character and Image FCI The FCI performs image smoothing This functions only affects binary picture processed images in sharp text mode Main Scan Direction 4 4 3 4 2 4
175. in 257 P MTF Coefficient Text Grayscale Sub 25 29 P MTF Coefficient Text Grayscale Sub 30 76 20 September 1999 operation 1 Yes Start the plate or erasing the memory on the BICU board See Replacement and Adjustment Copy Image Adjustments Standard White this mode is not being used Selects the scanner motor control method 0 Normal If 1 is selected the current for the scanner 1 Special motor will be reduced and jitter copy quality problems will be alleviated However copy speed will be reduced Normally do not change the value Adjusts the interval for shading processing in DF mode Light and heat may affect the scanner response If copy quality indicates that white level is drifting during a DF copy job reduce this setting This setting is only effective when the setting of SP4 950 is 1 This adjustment is only effective for the Service Mode original type setting Selects the MTF filter coefficient in the grayscale processing mode See Detailed Descriptions Image Processing for details T P Text Photo 4 28 20 September 1999 Mode No Class COME 1and2 P MTF MANN Text Grayscale S 77 154 P MTF Coefficient Text Grayscale S 155 256 P MTF Coefficient Text Grayscale ue 257 P MTF Coefficient T P Grayscale 125 57 P MTF Coefficient T P Grayscale 58 65 P MTF Coefficient T P Grayscale Man 66
176. information Paper jam information System configuration Staple end Fusing temperature Door open Vsg Vsp Vsdp Vt data Unit connection condition Fusing and Copy counter for user codes PCU Machine condition 5 7 001 003 204 301 305 402 504 803 903 905 1 3 2 AUTO CALL AND READ ITEMS Item Item Jam condition auto call Continuously jam SC alarm Jam auto call SC auto call Cover open auto call SC auto call communication APPENDIX 3 JAM HISTORY 30 November 1999 1 3 3 READ AND WRITE ITEMS All data for SP modes and UP modes except few modes 1 3 4 EXECUTE ITEMS Item Item User code clear Copy counter reset SC reset Reset counter by each paper tray PM counter reset Total operation time reset SC jam counters rest Key operator code reset Counters reset except total counter 1 4 JAM HISTORY The jam history is read in this way K The last 5 digits of the total counter value at jam occur Paper Size Jam Condition A2651903 WMF 1 4 1 JAM CONDITION TABLE Copier Code Meaning 01 Jams at power on OA Paper does not reach the registration sensor from paper tray unit OB Paper does not reach the 1st relay sensor 1E Paper does not reach the 2nd relay sensor 1F Paper does not reach the 3rd relay sensor 20 Paper does not reach the LCT feed sensor 32 Paper does not reach the registration sensor from by pass unit 46 Paper caught at
177. ion Error diffusion Binary pictur e processing Threshold Dynamic Dynamic Dynamic 4 922 1 4 923 4 926 4 931 4 934 Independent Dot Erase after image process None None 4 939 Line Width Correction Disabled 2 12 Thinner Lines medium 4 935 4 20 September 1999 IMAGE PROCESSING Text Mode Grayscale Processing Text Mode Pale Normal Generation Service Mode ADS SBU As selected at the operation panel As op panel ADS IPU As selected at the operation panel 4 937 1 4 938 1 Shading Correction Enabled Enabled T Enabled Enabled White Line Correction 4 942 4 918 1 Strong DF Black Line Correction Enabled DF only 4 943 only 4 919 1 Linear Scanner y Correction AE linear 4 928 1 Normal Small Smoothing Filter Normal 4 921 1 e Enabled agnification Mirroring Enabled only in the ADF mode MTF Medium MTF Smoothing Filter MTF Medium 4 915 1 10 4 916 1 10 Weak Strong 4 944 Enable disable 4 917 1 Text ID y Correction Text 4 940 1 Gradation Error diffusion Constant Threshold Constant 4 929 1 Independent Dot Erase Nene None after image process 4 939 Thick Thin Disabled Line Width Correction Medium Disabled Medium 4 935 1 2 13 N 2 9 IMAGE PROCESSING Text Photo Mode Binary Picture Processin
178. jams by Location location 3rd Total Jams by CI Tou Jams by Location By pass Total Jams by 3 Location Duplex Unit ROM Displays the ROM version Version Connection NOTE SP7 801 5 and 14 are used only Main Control for the Japanese version ROM Version Connection ROM Version Connection FAX Control ROM Version Connection Printer Control ROM 5 Version Connection ANITA ROM Version Connection Scanner ROM 7 801 7 Version Connection Duplex ROM Version Connection ADF ROM Version Connection Finisher ROM 10 j Version Connection PI ROM Version Connection Memory ROM 12 Version Connection 1 Bin Tray ROM 13 Version Connection Paper Tray Unit M SS o a o wo 4 56 20 September 1999 PM Counter Resets SC Jam Counter Reset Resets Counters Key Operator Code Reset Total Counter Reset SERVICE PROGRAM MODE Displays the ROM version NOTE SP7 801 5 and 14 are used only for the Japanese version yd PM Counter Display Displays the PM counter since the last I Resets the PM counter After selecting 1 press down the Original Type key and the or 8 key at the same time to reset the counters If the reset was successful the beeper will sound 5 times If it failed the beeper will sound only twice Resets the SC and jam counters 0 After selecting 1
179. ld SP1 910 8 The size used by SP1 910 is determined by paper width See Optional Paper Tray Unit Paper Lift Mechanism for details on SP1 910 Not used 1 HLT A5 4 13 SERVICE PROGRAM MODE Pressure Adjustment Normal Size Optional PFU 4th Bottom Plate Pressure Adjustment Small Size Optional PFU 4th Bottom Plate Pressure Adjustment Middle Size Optional PFU 4th Bottom Plate Pressure Re adjustment Small Size Optional PFU 20 September 1999 SP1 911 9 this SP adjusts the upper paper 1 ms step lift motor reverse time for paper sizes larger 200 ms than the small size threshold set with SP1 911 8 If a middle size threshold is stored with SP1 911 9 then this SP adjusts the motor reverse time for sizes larger than the middle size Do not input a value greater than 1200 Use this SP when a paper feed problem occurs from the 4th paper tray See Optional Paper Tray Unit Paper Lift Mechanism for details on SP1 91 1 Adjusts the upper paper lift motor reverse 0 2000 time for paper of the same size as or smaller 1 ms step than the small size threshold set with SP1 600 ms 911 8 Do not input a value greater than 1200 Use this SP when a paper feed problem occurs from the 4th paper tray See Optional Paper Tray Unit Paper Lift Mechanism for details on SP1 91 1 Adjusts the upper paper lift motor reverse 0 2000 time for paper sizes larger than the small 1 ms step
180. ll the machine at any location over 2 000 m 6 500 ft above sea level 9 Place the copier on a strong and level base Inclination on any side should be no more than 5 mm 10 Do not place the machine where it may be subjected to strong vibrations 3 1 2 MACHINE LEVEL Front to back Within 5 mm 0 2 of level Right to left With in 5 mm 0 2 of level INSTALLATION REQUIREMENTS 20 September 1999 3 1 3 MINIMUM SPACE REQUIREMENTS Place the copier near the power source providing clearance as shown A In Front Over 750 mm 29 6 B Left Over 10 mm 4 C To Rear Over 10 mm 4 D Right Over 10 mm 4 A2671201 WMF E 1406 mm 55 4 F 640 mm 25 2 550 mm 21 7 H 1137 mm 44 8 A2671202 WMF NOTE The 750 mm recommended for the space at the front is only for pulling out the paper tray If an operator stands at the front of the copier more space is required 3 2 20 September 1999 INSTALLATION REQUIREMENTS 3 1 4 POWER REQUIREMENTS NCAUTION Make sure that the wall outlet is near the copier and easily accessible Make sure the plug is firmly inserted in the outlet 2 Avoid multi wiring Be sure to ground the machine 1 Input voltage level 120
181. lt 30 seconds 3 T 30 means that toner is supplied intermittently in a 1 3 duty cycle 1 S 2 s off for 30 seconds 2 49 DEVELOPMENT 20 September 1999 2 6 7 TONER SUPPLY IN ABNORMAL SENSOR CONDITIONS ID sensor Readings are abnormal if any of the following conditions occur e Vsg x 2 5V e Vsg 3 5V when maximum power 254 is applied e Vsp 2 2 5V Vsp 1 0V D sensor power required to make the standard output reaches the maximum value 254 The above ID sensor values can be checked using SP2 221 When this is detected the machine changes the value of Vref to 2 5V then does the toner density control process in a similar way to sensor control mode 2 No SC code is generated if the ID sensor is defective TD Sensor The TD sensor is checked every copy If the readings from TD sensor become abnormal the machine changes the toner density control mode to fixed supply mode 2 and the toner supply amount per page is always 200 ms regardless of the value of SP2 925 Then at the end of a job if the optional fax unit is installed or 100 copies after the TD sensor error was detected if no fax unit is installed an SC code is generated SC390 and the machine must be repaired The 100 copy threshold can be adjusted with SP 2 992 2 6 8 TONER NEAR END END DETECTION AND RECOVERY The toner near end and end conditions are detected using the Vt and Vref values in a similar way to toner density control Thi
182. m step Trailing Edge The specification is 3 2 mm See 4 0 mm Large Paper Size Replacement and Adjustment Copy Adjustment for details Erase Margin 0 0 9 0 Adjustment The specification is 2 1 5 mm See 0 1 mm step Left Side Replacement and Adjustment Copy 2 0 mm Adjustment for details Erase Margin 0 0 9 0 Adjustment The specification is 2 2 5 1 5 mm See 0 1 mm step Right Side Replacement and Adjustment Copy 2 0 mm Adjustment for details 4 17 SERVICE PROGRAM MODE 2 103 2 106 2 201 1 Erase Margin Adjustment Rear Trailing Edge Erase Margin Adjustment Rear Left Side Erase Margin Adjustment Rear Right Side Erase Margin Adjustment Printer Rear Trailing Edge LD Power Adjustment ID Adjustment for Test Pattern Development Bias Adjustment Printing 20 September 1999 Adjusts the trailing edge erase margin on the reverse side of duplex copies The actual trailing edge erase margin on the reverse side is this value plus the value of SP2 101 2 or 3 or 4 The specification is 3 2 mm See Replacement and Adjustment Copy Adjustment for details Adjusts the left side erase margin on the reverse side of duplex copies The actual left side erase margin on the reverse side is this value plus the value of SP2 101 5 The specification is 2 1 5 mm See Replacement and Adjustment Copy Adjustment for details Adjusts the right
183. mage Mode Select Image Mode Adjustment Normal Mode Enhanced Mode Image Density Text Duplex Priority Cover OHP Tray Copy Reset Timer Initial Mode Set Bypass Mode Clear Key operator Tools User Code Management Counter Reset Clear Code Counter Program User Code Chg Del User Code Counter List Print 2 Adjust Image Border Erase Width Center Erase Width Left Duplex Margin Top duplex margin Line Combine Line Repeat 3 Input Output Duplex Auto Eject Combine Auto Eject Original Count SADF Auto Reset Rotate Sort Auto Paper ount Sort 4 Stamp Setting Page No Priority Page No Size Duplex Back Page No Page No Combine Page No position Page No Adjustment Stamp Priority Stamp Size Stamp Density 10 Stamp Position 11 Stamp Adjustment 12 Stamp page priority 4 82 20 September 1999 LEDS 4 4 LEDS BICU Number Function Monitors the 5 V line for the slave CPU LED 102 Usually this LED is blinking Monitors the 5 VE line Usually this LED is lit LED 103 IOB Number Function LED 100 Monitors the connection between the IOB and the BICU Usually this LED is blinking 4 5 SPECIAL TOOLS AND LUBRICANTS 4 5 1 SPECIAL TOO
184. memory if it has been installed Remove the BICU board B 6 connectors 6 screws or 5 screws if the optional copier memory has been installed Remove the NVRAM C from the old BICU board and put it on the new BICU board 6 31 PCBS AND OTHER ITEMS 20 September 1999 6 7 2 BOARD A267R708 WMF 1 Remove the rear cover See Paper Tray Lift Motors 2 Remove the I O board A All connectors 6 screws 6 7 3 POWER PACK A A267R710 WMF 1 Remove the rear cover See Paper Tray Lift Motors 2 Swing down the I O board bracket See Paper Feed Clutches 3 Remove the power pack A 5 connectors 4 screws 6 32 20 September 1999 PCBS AND OTHER ITEMS 6 7 4 MAIN MOTOR 2 y A 59 C3 A267R711 WMF Remove the rear cover See Paper Tray Lift Motors Swing down the I O board bracket A See Paper Feed Clutches Remove the fly wheels B 1 screw e E a Replace the main motor C 2 connectors 3 screws yc 5 on Cs ay ox PCBS AND OTHER ITEMS 20 September 1999 6 7 5 PSU 115 V Machine A or B A267R701 WMF REG DU WM 220 V machine D A267R726 WMF 1 Remove the optional finisher if it has been installed 2 Remove the application cover A 1 screw 3 Remove the left cover B 6 screws 4 220 V machine only Remove the transformer C 1 screw 5 Remove the PSU D
185. mma curve for dithering 5 58 Adjustment This adjustment is only effective for the Photo Binary Service Mode original type setting Print See Detailed Descriptions Image 6 105 Processing for details Press Normally do not change the value Print White Line Erase Selects whether or not white line erase is 0 Normal done for all original modes except Service 1 Disable Mode See Detailed Descriptions Image Processing for details Black Line Erase Selects the black line erase level for all original modes except Service Mode This 1 Disable SP is effective only when scanning the original using the ADF See Detailed Descriptions Image Processing for details Independent Dot Selects whether or not independent dot 0 Normal Erase erase is done for all original modes except 1 Disable Service Mode See Detailed Descriptions Image Processing for details Positive Negative Selects the MTF coefficient for the 0 15 MTF Coefficient positive negative feature in the main scan 1 step Main Scan direction 1 Binary This SP is effective only when the value of SP4 401 is 1 4 42 20 September 1999 Positive Negative MTF Coefficient Sub Scan Binary Positive Negative MTF Strength Main Scan Binary Positive Negative MTF Strength Sub Scan Binary Positive Negative Binary Threshold MAX Positive Negative Binary Threshold MIN Positive Negative Bi
186. n Dither 105 lines Dither 143 lines Error diffusion Dither 143 lines 4 929 3 Threshold Dynamic Independent Dot Erase after image process None Line Width Correction Disabled 2 17 Disabled 4 935 3 IMAGE PROCESSING 20 September 1999 Auto Shading There are two auto shading methods black level correction and white level correction Auto shading corrects errors in the signal level for each pixel Black Level Correction The CPU reads the black dummy data from one end of the CCD signal 32 pixels at the end are blacked off and takes the average of the black dummy data Then the IPU deletes the black level value from each image pixel White Level Correction Before scanning the original the machine reads a reference waveform from the white plate The average of the white video level for each pixel is stored as the white shading data in the FIFO memory in the IPU chip The video signal information for each pixel obtained during image scanning is corrected by the IPU chip Auto shading for the first original is done before the scanning After scanning every page auto shading is done to prepare for the next page If the copy image density or the original mode is changed during copy run the auto shading for the next scan is done before the scanning to respond to the mode changed White Line Erase Compensation During the white level correction if extremely low CC
187. n 6 A for Europe Asia 110 V 50 60 Hz More than 13 A for Taiwan Power Consumption Mainframe Only Full System 120 V 220 240 V 120 V 220 240 V Less than Less than Less than Less than Vemm 1 44 kW 1 44 kW 1 44 kW 1 44 kW Approx Approx Approx Approx Copying 500 Wh 500 Wh 500 Wh 500 Wh 1 Approx Approx Approx Approx 1 0 kW 1 0 kW 1 0 kW 1 0 kW abus 120 Wh 120 Wh 130 Wh 130 Wh Low Power Level 1 Approx 80 Wh Approx 85 Wh Approx 80 Wh Approx 85 Wh Low Power Level 2 Approx 50 Wh Approx 50 Wh Approx 50 Wh Approx 50 Wh Auto Off 10W 10 W NOTE 1 Full system Mainframe ADF 1 bin Sorter Paper Tray Unit Duplex Unit Bridge Unit Finisher 2 Without the optional heaters fax unit and printer controller Noise Emission Sound Power Level Stand by Mainframe only US Asia Model 40 dB Operating Operating NOTE 1 2 Mainframe only US Asia Model 64 dB Europe Model 64 dB Full System 67 5 dB A The above measurements were made in accordance with ISO 7779 Full System Mainframe ADF 1 bin Sorter Paper Tray Unit Duplex Unit Bridge Unit Finisher Europe Model 40 20 September 1999 Dimensions W x D x H Weight SPECIFICATIONS 550 x 580 x 709 mm 21 7 x 22 8 x 28 0 NOTE Measurement Conditions 1 With the paper tray unit
188. n be adjusted using SP4 008 ADF mode The scanners are always kept at their home position the scanner H P sensor H detects the 1st scanner to scan the original The ADF motor feeds the original through the ADF In reduction enlargement mode the image length change in the sub scan direction is done by changing the ADF motor speed Magnification in the main scan direction is done in the BICU board like for book mode Magnification in the sub scan direction can be adjusted by changing the ADF motor speed using SP6 007 In the main scan direction it can be adjusted with SP4 008 like for book mode 2 2 20 September 1999 SCANNING 2 1 3 ORIGINAL SIZE DETECTION IN PLATEN MODE os oo an e A265D504 WMF In the optics cavity for original size detection there are four reflective sensors in the 115V machines A and B and six reflective sensors in the 230V machines The original width sensors A detect the original width and the original length sensors B and C detect the original length These are the APS Auto Paper Select sensors Each APS sensor is a reflective photosensor While the main switch is on these sensors are active and the original size data is always sent to the CPU However the CPU checks the data only when the platen cover sensor D is activated This is when the platen is positioned about 15 cm above the exposure glass for example while it is being close
189. n between the laser synchronization detector board and the BICU board Laser synchronization detector board out of position Laser synchronization detector board defective BICU board defective LD unit defective SC324 LD drive current over Definition B The LD drive board applies more than 100 mA to the LD Possible causes e LD unit defective not enough power due to aging e Poor connection between the LD unit and the BICU board BICU board defective 5 390 TD sensor error Definition B The TD sensor outputs less than 0 5V or more than 4 0V 10 times consecutively during copying Possible causes e TD sensor abnormal Poor connection of the PCU SC391 Development bias leak Definition B A development bias leak signal is detected og Qs 30 22 Possible causes Poor connection of the PCU e High voltage supply board defective 7 5 SERVICE CALL CONDITIONS 20 September 1999 SC392 TD sensor initial setting error Definition B TD sensor output voltage falls out of the adjustment range 2 0 lt gt 0 2 V after the TD sensor initial setting has been finished Possible causes Someone forgot to remove the toner seal of the PCU ID sensor defective TD sensor abnormal Drum does not turn Development roller does not turn Poor connection of the PCU SC401 Transfer roller leak error 1 SC402 Transfer roller leak error 2 Definition B A transfer roller current
190. n only Attach the special paper decal B to the 2nd paper tray as shown 3 9 COPIER INSTALLATION 20 September 1999 12 13 14 15 16 17 A2671105 WMF If the optional bridge unit will not be installed Swing the sensor feeler A out Install the optional ARDF or the optional platen cover see ARDF Installation or Platen Cover Installation Plug in the machine and turn the main power switch on The machine automatically performs TD sensor initial setting approximately 45 seconds Select the correct display language using SP 5 808 or UP mode Language Check the copy quality and copying functions Initialize the electrical total counter using SP7 825 depending on the service contract type NOTE Select 1 then press the Original Type and OK keys at the same time If the reset is successful the beeper sounds 5 times 3 10 20 September 1999 PAPER TRAY UNIT INSTALLATION 3 3 PAPER TRAY UNIT INSTALLATION 3 3 1 ACCESSORY CHECK Check the quantity and condition of the accessories against the following list No Description Q ty Securing Bracket Screw 4 10 4 E 5 A8601603 WMF B A8601601 WMF NCAUTION Unplug the machine power cord before starting the following procedure 1 Remove the strips of tape 2 Setthe copier A on the paper tray unit B NOTE When installing the copier be careful not to pinch the cable
191. nal disregarding the original size sensors However for each page the data signal to the laser diode is stopped to match the copy paper length detected by the registration sensor Original size detection using the ADF is described in the manual for the ADF 2 4 20 September 1999 IMAGE PROCESSING 2 2 IMAGE PROCESSING 2 2 1 OVERVIEW 2 23 s 2 U SBU e Memory LD Control EMB Controller PER IC VCU 1 Drum AMAT IPU Fax Controller 1 FCI je 4 Printer Controller Scanner Controller LDD BICU A265D500 WMF The CCD generates an analog video signal The SBU Sensor Board Unit converts the analog signal to an 8 bit digital signal then it sends the digital signal to the BICU Base engine and Image Control Unit board The BICU board can be divided into three image processing blocks the IPU Image Processing Unit FCI Fine Character Image and LD controller VCU e IPU Auto shading filtering magnification y correction and gradation processing e LD controller LD print timing control and laser power PWM control e FCI inside the LD controller Smoothing binary picture processing mode only Finally the BICU board sends the video data to the LD drive board at the correct time The EMB board is the copier feature expa
192. nary Threshold Center Shading Mode Selection All Indicators On SERVICE PROGRAM MODE Selects the MTF coefficient for the 0 15 positive negative feature in the sub scan 1 step direction 2 This SP is effective only when the value of SP4 401 is 1 Selects the MTF strength for the 0 15 positive negative feature in the main scan 1 step direction 5 This SP is effective only when the value of SP4 401 is 1 Selects the MTF strength for the 0 15 positive negative feature the sub scan 1 step direction 5 This SP is effective only when the value of SP4 401 is 1 Adjusts the maximum value of the dynamic binary threshold used at the edges of text elements for the positive negative feature This SP is effective when the value of SP4 401 is 1 and Dynamic Binary is selected with SP4 922 1 See Detailed Descriptions Image Processing for details Adjusts the minimum value of the dynamic binary threshold used at the edges of text elements for the positive negative feature Same comments as for SP4 948 1 Adjusts the threshold in dynamic binary 0 255 mode for pixels not on edges of text graphic 1 elements for the positive negative feature 96 Same comments as for SP4 948 1 Selects the scanner shading method in ADF mode 0 Russian Do the shading every page 1 ADAM Do the shading at the time specified by SP4 913 2 None This is for the designer s test purposes Do not
193. nder option which provides extra memory for the copier features 2 5 IMAGE PROCESSING 20 September 1999 2 2 2 SBU SENSOR BOARD UNIT SBU BICU Analog Processing IC1 gt 1 8 bit data SA IPU a A D2 8 bit data Processing 2 A265D501 WMF The CCD converts the light reflected from the original into an analog signal The CCD line has 7 450 pixels and the resolution is 600 dpi 23 6 lines mm The CCD has two output lines for odd and even pixels to the analog processing IC The analog processing IC performs the following operations on the signals from the CCD 1 Z C Zero Clamp Adjusts the black level reference for even pixels to match the odd pixels 2 Signal Amplification The analog signal is amplified by operational amplifiers in the AGC circuit The maximum gains of the operational amplifiers are controlled by the CPU on the BICU board After the above processing the analog signals are converted to 8 bit signals by the A D converter This will give a value for each pixel on a scale of 256 grades Then the digitized image data goes to the BICU board 2 6 20 September 1999 IMAGE PROCESSING 2 2 3 AUTO IMAGE DENSITY 0 5mm A 4 20mm 80mm 52 E eo a gt Sub scan direction A265D502 WMF In the SBU ADS prevents the background of an origin
194. ng for details Normally do not change the value P IPU ADS Setting Text Binary P IPU ADS Setting Text Photo Binary P IPU ADS Setting 4 937 Photo Binary 4 40 20 September 1999 Class 1and2 Mode No CURE IPU Text Grayscale P IPU ADS Adjustment Text Photo IPU ADS Kin Grayscale IPU ADS IPU ADS Addon EST Binary IPU ADS AN Photo Binary Binary Filter P ID Gamma Adjustment Text Grayscale P ID Gamma Adjustment Text Photo Grayscale SERVICE PROGRAM MODE This adjustment is only effective for the Service Mode original type setting Decides how much is subtracted from the white video level In SP4 937 if By key is selected and the user selects ADS mode or if ON is selected this value is subtracted from the white video level See Detailed Description Image Processing for details Normally do not change the value Selects the binary filter for the independent dot erase that is done after image processing in text mode This adjustment is only effective for the Service Mode original type setting for text mode If 0 is selected this mode is disabled See Detailed Descriptions Image Processing for details Normally do not change the value Selects the ID gamma curve 0 ed This adjustment is only effective for the Greyscale
195. nged Printer enabled in printer mode or not 1 Yes If this value is changed the user tool setting is also changed PM Alarm Interval Sets the PM interval The value stored in this SP is used when the 1k copies value of SP5 501 2 and or 3 is 1 PM Alarm Mode Selects whether the PM alarm for the Prints number of prints copies is enabled or not If this is 1 the PM alarm function is enabled PM Alarm Mode This SP is for Japan only Do not change 0 No Original the value Selects whether the PM alarm for the number of scans is enabled or not If this is 1 the PM alarm function is enabled 4 44 20 September 1999 SERVICE PROGRAM MODE This SP is for Japan only Do not change the value the value Staple Toner 1 CE Call Jam Level This SP is for Japan only Do not change 1 the value 5 508 CE Call Jam Level 2 CE Call Door Open Memory All Clear Resets all software counters Also returns all modes and adjustments to the default settings except for the machine serial number SP5 81 1 After selecting 1 press the Original Type key and the key at the same time to clear the memory If the reset was successful the beeper will sound 5 times If it failed the beeper will sound only twice See the Memory All Clear section for how to use this SP mode correctly Normally this SP mode should not be used It is used only after replacing the NVRAM or when t
196. ode the original is placed face down on the exposure glass and the corner at A is at the start of the main scan The scanner moves down the page In ADF mode the ADF feeds the leading edge of the original to the DF exposure glass and the opposite top corner of the original is at the main scan start position To create the mirror image the IPU stores each line in a LIFO Last In First Out memory 2 20 20 September 1999 IMAGE PROCESSING Filtering Overview There are some software filters for enhancing the desired image qualities of the selected original mode These filters are the MTF filter the smoothing filter and independent dot erase The MTF filter emphasizes sharpness and is used in Text and Text Photo modes oo an e The smoothing filter is used in Photo mode except for Glossy Photo mode In Glossy Photo mode the MTF filter is used Independent dot erase removes unwanted dots from the image MTF Filter Adjustment Text and Text Photo Modes When the user selects Service Mode for either Text or Text Photo original type the MTF filter strength and coefficient can be adjusted with SP4 915 and 4 916 It is difficult to simply explain the relationships between the filter coefficient and filter strengths Refer to the following charts to determine how to make the filters weaker or stronger A circle indicates the default setting When the filter is stronger in the main
197. of the following SP mode to a smaller number Apply the bottom plate pressure at near end condition for small paper size Change the value of the following SP mode to a larger number SP No Tray SP No Tray SP No Tray 1 908 1 1st Tray 1 908 2 1st Tray 1 908 4 1st Tray 1 909 1 2nd Tray 1 909 2 2nd Tray 1 909 4 2nd Tray 1 910 1 3rd Tray 1 910 2 3rd Tray 1 910 4 3rd Tray 1 911 1 4th Tray 1 911 2 4th Tray 7 16 1 911 4 4th Tray A265T500 WMF 20 September 1999 SKEWED IMAGE 7 3 SKEWED IMAGE Do the following to fix a skewed image problem Print out the Trimming Pattern SP5 902 no 10 from every paper tray Make a copy using the Is the copy skewed ADE Do the following Is the copy skewed Check the side fence position of the paper tray Clean or replace the paper feed roller Clean the registration roller Change the value of SP1 903 toa Do the following larger number Check the side fence position of the original table Clean or replace the original feed belt pick up roller and separation roller Clean the transport roller and exit roller Secure the ADF using the long hole then adjust the ADF position A265T501 WMF ase 30 22 7 17 TONER DENSITY 20 September 1999 7 4 TONER DENSITY 7 4 1 ADJUST THE TONER DENSITY CONTROL If t
198. on the LCT B NOTE When installing the copier be careful not to pinch the cable C 3 14 20 September 1999 LCT INSTALLATION 94 A A8621504 WMF C Installation ME A8621501 WMF 3 Remove the connector cover A 1 screw 4 Connect the cable B to the copier as shown e Attach a securing bracket C to each side of the LCT as shown 1 screw each o Re install the connector cover 7 Remove the 2nd paper tray and secure the LCT with two screws D 3 15 LCT INSTALLATION 20 September 1999 A8621502 WMF 8 Load paper into the LCT 9 Reinstall the 2nd paper tray and attach the appropriate paper tray number decal A and paper size decal B to the LCT NOTE The paper tray number decal is in the accessory box for the main copier 10 Turn on the main switch 11 Check the machine s operation and copy quality 3 16 20 September 1999 AUTO REVERSE DOCUMENT FEEDER INSTALLATION 3 5 AUTO REVERSE DOCUMENT FEEDER INSTALLATION 3 5 1 ACCESSORY CHECK Check the quantity and condition of the accessories against the following list Description Scale Guide DF Exposure Glass Stud Screw Knob Screw Original Size Decal Screwdriver Tool 5 5 N 2 A8581500 WMF A8581101 WMF NCAUTION Unplug the copier power cord before starting the following procedure 1 Remove the
199. or cover A disconnect the cable and remove the rear cover B Remove the exposure glass See Exposure Glass Remove the lens block See Lens Block Assembly Replace the scanner motor C 2 screws 1 spring 1 connector gU de oom qm Reassemble the machine and do the scanner and printer copy adjustments See Copy Adjustments 20 September 1999 SCANNER UNIT 6 1 7 SCANNER WIRES QUE CO OK A267R012 WMF Remove the exposure glass operation panel and all scanner exterior covers See Exposure Glass and Scanner Exterior Operation Panel Remove the left upper stay See Exposure Lamp Remove the front frame See Exposure Lamp Remove the rear bracket See Exposure Lamp Remove the rear frame See Exposure Lamp Remove the lens cover See Lens Block Assembly Remove the lens block assembly See Lens Block Assembly Remove the front and rear scanner wire pins A Then remove the 1st scanner vcio 5 Er on Cs ay og 6 7 SCANNER UNIT 20 September 1999 10 11 12 13 14 15 16 17 18 19 A267R010 WMF Remove the tension spring B Loosen the screw C securing the wire tension bracket D Remove the scanner drive pulley E 1 set screw Remove the scanner wire F Wrap the new scanner wire around the pulley as shown then temporarily secure the pulley with tape Re install the 1st scanner Then secure the 1st and 2nd
200. osition At home position Rear fence return sensor Optional LCT Not return position At return position Side fence closed sensor Optional LCT 4 62 Not detected Detected 20 September 1999 Number Description Reading SERVICE PROGRAM MODE 00H 01H Side fence open sensor 48 Optional LCT Not detected Detected 49 Geen LCT Paper not detected Paper detected 50 Tray set switch Optional LCT Off On 51 nda rd tray Paper not detected Paper detected 52 Not used PCU set signal a shorted connection Not set Set in the ID sensor cable New PCU detect switch Used PCU New PCU Paper tray unit type on oae unit eee Tanga Paper tray unit installed Not installed Installed 1 bin sorter installed Not installed Installed BICU installed Not installed Installed Bridge unit installed Not installed Installed Shift tray unit installed Not installed Installed 61 By pass tray installed Not installed Installed 62 Duplex unit installed Not installed Installed 63 Fusing unit installed Not installed Installed 64 Interchange unit installed Not installed Installed 65 Finisher installed Not installed Installed 66 Not used 67 1st paper lift sensor Paper not at Paper at correct correct height height 68 2nd paper lift sensor Paper not at Paper at correct correct height height 69 Lower pa
201. owever 5VE 5V for energy saver mode is still activated When the machine detects a ringing signal or off hook signal the machine goes back to night stand by mode and the system 5V and 24V supplies are activated Then the machine receives the incoming message and prints it ENERGY SAVER MODES 20 September 1999 Returning to stand by mode The machine returns to stand by mode when the operation switch is pressed The recovery time is about 45 s Operation Switch Fusing Temp Mode Night stand Room Temp Off by mode Fusing lamp off Only is supplied to the fax controller Room Temp Fusing lamp off Night mode Off 2 82 20 September 1999 INSTALLATION REQUIREMENTS 3 INSTALLATION PROCEDURE 3 1 INSTALLATION REQUIREMENTS 3 1 1 ENVIRONMENT Temperature Range 10 C to 32 50 F to 89 6 F 2 Humidity Range 15 to 80 RH 3 Ambient Illumination Less than 1 500 lux do not expose to direct sunlight 4 Ventilation Room air should turn over at least 30 m3 hr person 5 Ambient Dust Less than 0 10 mg m 2 7 x 10 6 oz yd 6 Avoid an area which is exposed to sudden temperature changes This includes 1 Areas directly exposed to cool air from an air conditioner 2 Areas directly exposed to heat from a heater e S 5 S o 7 Do not place the machine in an area where it will be exposed to corrosive gases 8 Do not insta
202. per lift sensor Paper not at Paper at correct Optional paper tray unit correct height height 70 Not used 71 Main motor lock Off On 72 Polygonal mirror motor lock Off On Tray motor lock f Optional paper tray unit ol on 74 Exhaust fan motor lock Off On 76 Total mechanical counter installed Not installed Installed 77 Not used 78 Not installed Installed 79 80 used 81 Laser synchronization signal Not detected Detected 82 LD error No error Error 83 89 used 90 DF position sensor Optional ADF Closed Opened 4 63 SERVICE PROGRAM MODE 20 September 1999 WT Reading Number Description 00H 01H Feed cover open sensor 91 Optional ADF Closed Opened 92 Original set sensor Optional ADF Paper not detected Paper detected 93 Registration sensor Optional ADF Paper not detected Paper detected Original trailing edge sensor 94 Optional ADF Paper not detected Paper detected 95 Original exit sensor Optional ADF Paper not detected Paper detected 96 rica oversee phani Paper not detected Paper detected 97 98 used 99 Platen cover sensor Closed Opened Table 1 Paper Size Switch Main Frame Number SW No 1 2 3 4 A250M002 WMF SP Value o z o N o o AZ 2loooj a 2 2 olo s Paper Size A4 Sideways A4 Lengthwise 11 x17 11 x 81 2 81 2
203. pes of night mode Night Stand by Mode and Night Mode The difference between night stand by mode and night mode is the machine s condition when the machine enters auto off mode os oo an e Entering night stand by and night modes The machine enters the night stand by mode and night modes when one of the following is done The operation switch is pressed to turn the power off The auto off timer runs out the operation switch is then turned off If the machine is in one or more of the following conditions the machine enters night stand by mode If not the machine enters night mode e Error or SC condition An optional G4 unit is installed Image data is stored in the memory During memory Tx or polling Rx The handset is off hook An original is in the ADF The ADF is open Paper is left in the Duplex unit or staple tray What happens in night stand by and night modes When the machine enters either of these modes the fusing lamp and operation switch turn off and only the main power LED is lit Night stand by mode The system 5V and 24 V are supplied to all components Note that SP5 909 allows 24V to be supplied during night mode This allows the machine s condition to be displayed on the screen so that any problems such as paper end can be discovered quickly to allow normal reception and printing of fax messages Night mode The system 5V supply is also turned off H
204. positioning screws Doing so will throw the CCD out of position GENERAL CAUTION 20 September 1999 4 1 4 LASER UNIT 1 Do not loosen the screws that secure the LD drive board to the laser diode casing Doing so will throw the LD unit out of adjustment Do not adjust the variable resistors on the LD unit as they are adjusted in the factory The polygon mirror and F theta mirror are very sensitive to dust Do not touch the glass surface of the polygon mirror motor unit with bare hands 4 1 5 FUSING UNIT 1 After installing the fusing thermistor make sure that it is in contact with the hot roller and that the hot roller can rotate freely Be careful not to damage the edges of the hot roller strippers or their tension springs Do not touch the fusing lamp and rollers with bare hands Make sure that the fusing lamp is positioned correctly and that it does not touch the inner surface of the hot roller 4 1 6 PAPER FEED 1 Do not touch the surface of the paper feed roller 2 To avoid paper misfeeds the side fences and end fences of the paper tray must be positioned correctly to align with the actual paper size 4 1 7 OTHERS 1 The TD sensor initial setting is performed automatically after installing the new PCU and closing the front cover Never open the front cover or turn off the main switch during this time The main motor stops when the initial setting has finished The toner bottle should be replace
205. pplies are 0 24V cut while night mode is active Set this to 1 if the customer wishes to 1 24V check the machine conditions displayed on supplied the operation panel LED such as paper end while night mode is active Specifies whether the machine selects LT sideways or lengthwise paper if the original is A4 In inch models if Yes is selected LT sideways or lengthwise is selected automatically when the APS sensors detect an A4 sideways or lengthwise original In mm models if Yes is selected A4 sideways or lengthwise is selected automatically when the APS sensors detect an LT sideways or lengthwise original 4 48 20 September 1999 PCU Alarm Setting Interval UP Mode Data Printer Counter Language UK TW Priority Fax Forwarding BICU Software for designer BICU Software Download for designer Image Rotation Mode Duplex Blank Page SERVICE PROGRAM MODE Selects whether the PCU alarm message Change Photoconductor Unit blinks when the PCU alarm interval expires When installing the machine if the customer requires that the PCU alarm message blink select 1 If set to 0 there will be no message Sets the PCU alarm interval 1 255 When the machine reaches this value the 1 PCU alarm will be displayed on the LCD to inform the user Only used if SP5 912 1 is at 60 copies 1 Resets the user tool data Except for the user co
206. ps printing 20 September 1999 ENERGY SAVER MODES 2 11 ENERGY SAVER MODES 2 11 1 OVERVIEW Main Power Main Power Operation Switch Off Switch On Switch On Any Status Main Power Power Main Power Operation Within Operation o 40 45s Switch On to return Go 4 Operation 2 i 8 Stand by Mode le Energy uto off Saver Key 2 Timer Auto Off Mode zh 5 la Exi Ringing LJ Fusing lamp Off Signal Energy Saver LED Off m System 5V Off 5 CO Energy Saver 5VE On Ne Timer Energy Energy Saver Mode 3 Night Mode Saver Within 3s or Key Energy Saver Level 1 or 2 40s to Fusing lamp to low temp return System 5V Off Energy Saver LED On 5 Selected by System 5V On UP mode Within 20s Ringing Low Power ff or 30s to Signal Off LB Timer return hook Fax ready paiso conditions Low Power Mode Switch Off AN Fusing lamp to low x 1 gt temp Operation Night Stand Energy Saver LED On by Mode System 5V On i Operation Operation Operation System 5V On Switch Off p Switch Off j A267D530 WMF When the machine is not used the energy saver function reduces power consumption by lowering the fusing temperature This machine
207. r Devices and Radiological Health CDRH prohibits the repair of laser based optical units in the field The optical housing unit can only be repaired in a factory or at a location with the requisite equipment The laser subsystem is replaceable in the field by a qualified Customer Engineer The laser chassis is not repairable in the field Customer engineers are therefore directed to return all chassis and laser subsystems to the factory or service depot when replacement of the optical subsystem is required NWARNING Use of controls or adjustment or performance of procedures other than those specified in this manual may result in hazardous radiation exposure Z WARNING FOR LASER UNIT WARNING Turn off the main switch before attempting any of the procedures in the Laser Unit section Laser beams can seriously damage your eyes CAUTION MARKING CAUTION VORSICHT INVISIBLE LASER RADIATION WHEN OPEN AVOID EXPOSURE TO BEAM UNSICHTBARE LASERSTRAHLUNG WENN ABDECKUNG GEOFFNET NICHT DEM STRAHL AUSSETZEN laser 4 WMF TABLE OF CONTENTS 1 OVERALL MACHINE INFORMATION 1 1 TIONS a distin 1 1 1 2 MACHINE 2 1 5 1 2 1 SYSTEM 5 1 5 1 2 2 INSTALLABLE OPTION TABLE 1 7 Copier Options acier ror Eure ne exe ud 1 7 Fax and printer
208. r Paper Size paper tray Determines what size of paper is in the lower SW6 Lower Paper Size paper tray Determines whether there is special paper in the SW7 Special Paper lower paper tray SW8 New PCU Detect Detects when a new PCU is installed Cuts the 5VLD and 24V dc power line and SA JOD ODIO aie detects whether the front cover is open or not Provides power for machine operation The To machine still has power if this switch is off ELECTRICAL COMPONENT DESCRIPTIONS 20 September 1999 Symbol Name Function Symbo Name Function Function Sensors Scanner Informs the CPU when the 1st and 2nd scanners are at home position Informs the CPU that the platen cover is in the up S2 Platen Cover or down position related to the APS ARE functions S2 Oriainal Width Detects original width This is one of the APS 9 Auto Paper Select sensors Detects original length This is one of the APS 977 Auto Paper Select sensors Detects original length This is one of the APS Orignal engine Auto Paper Select sensors Detects the amount of toner inside the S6 Toner Density TD development unit 57 151 Paper End dud CPU when the 1st paper tray runs out S8 2nd Paper End CPU when 2nd paper tray runs out Detects the density of various patterns and the i mage Dersity reflectivity of the drum for process control S10
209. r Trays 1 905 Tray Paper Full Determines whether or not to detect if the 0 No Detection built in copy tray is full 1 Yes Tray Paper Full Adjusts the time that the paper overflow 100 5000 Timer sensor must remain on before a message 10 ms step appears on the LCD The sensor may be 500 switched on and off again if the paper is 1 906 curled giving a false tray full detection This SP prevents this problem to 7 4 7 SERVICE PROGRAM MODE Pressure Adjustment Normal Size 1st Bottom Plate Pressure Adjustment Small Size 1st Bottom Plate Pressure Adjustment Middle Size 1st Bottom Plate Pressure Re adjustment Small Size 20 September 1999 SP1 908 9 this SP adjusts the upper paper 1 ms step lift motor reverse time for paper sizes larger 200 ms than the small size threshold set with SP1 908 8 If a middle size threshold is stored with SP1 908 9 then this SP adjusts the motor reverse time for sizes larger than the middle size Do not input a value greater than 1200 Use this SP when a paper feed problem occurs from the 1st paper tray See Paper Lift Mechanism for details on SP1 908 Adjusts the upper paper lift motor reverse 0 2000 time for paper of the same size as or smaller 1 ms step than the small size threshold set with SP1 600 ms 908 8 Do not input a value greater than 1200 Use this SP when a paper feed problem occurs from the 1st paper tray See Paper Lift Mechanism
210. r defective 7 10 20 September 1999 SERVICE CALL CONDITIONS SC692 Communication error between BICU and printer controller Definition B The BICU board cannot communicate with the printer controller properly Possible causes Poor connection between the BICU board and the mother board Poor connection between the mother board and the printer controller BICU board defective Printer controller defective Mother board defective SC694 Communication error between BICU and scanner controller Definition B The BICU board cannot communicate with the scanner controller properly Possible causes Poor connection between the BICU board and the mother board Poor connection between the mother board and the scanner controller BICU board defective Scanner controller defective Mother board defective SC 696 Communication error between IOB and finisher Definition B The IOB cannot communicate with the finisher properly Possible causes e Poor connection between the IOB and finisher OB defective Finisher main board defective SC722 Finisher jogger motor error Definition B 1 The finisher jogger H P sensor remains de activated for a certain time when returning to home position 2 The finisher jogger H P sensor remains activated for a certain time when moving away from home position Possible causes e Jogger H P sensor defective e Jogger motor defective og Qe 3 0 22 7 11 SE
211. r each paper tray can be adjusted using SP mode Paper Size Thresholds The upward pressure from the bottom plate spring is always the same However downward pressure from the stack on the bottom plate depends on the paper size Because of this for a smaller paper size the pressure of the top of the stack against the feed roller is more than normal because of the smaller downward pressure from the stack so adjustment may be necessary Using the following SP modes either two or three paper size ranges can be specified Using other SP modes explained later the pressure can be adjusted separately for each of these ranges to deal with any feed problems that have been occurring Normal Small Size Middle Size Paper Size Greater than HLT A5 HLT A5 or smaller None default setting default setting default setting 1st paper tray SP1 908 8 SP1 908 9 2nd paper tray 5 1 909 8 SP1 909 9 3rd paper tray SP1 910 8 SP1 910 9 4th paper tray SP1 911 8 SP1 911 9 Paper Size Ranges For Three Size Ranges Small paper size range Paper sizes equal to the Small SP mode value or smaller Middle paper size range Paper sizes greater than the small paper size up to and including the middle paper size specified by the Middle SP mode Normal paper size range Paper sizes greater than the Middle SP mode For Two Size Ranges Small paper size range Paper sizes equal to the Small SP mode
212. r speed during forward rotation at low speed Use this SP when paper often jams at the duplex entrance area when feeding paper from the duplex unit to the registration area Do not use in the field unless directed by service centre staff Adjusts the duplex transport motor speed 4 4 during forward rotation at high speed 1 step Use this SP when paper often jams at the 0 duplex entrance area when feeding paper from the duplex unit to the registration area Do not use in the field unless directed by service centre staff Selects whether fusing idling is done or not when the machine returns to stand by mode 1 Yes from low power mode level 2 If this is at 1 and the fusing temperature in low power mode level 2 is 70 C 90 C fusing idling is done See Fusing Temperature Control for more details Adjusts the voltage applied to the charge roller during printing This value will be changed automatically when the charge roller bias correction is performed Note that if this value is changed the charge roller voltage will be corrected based on the new voltage Adjusts the voltage applied to the charge roller when making the Vsdp ID sensor pattern for charge roller bias correction The actual charge roller voltage is this value plus the value of SP2 001 1 1 V step 1650 V 4 16 20 September 1999 SERVICE PROGRAM MODE 3 Adjustment for test purposes 1 V step Temporally input 0 Correction char
213. rd to the flash memory on the 5 825 BICU board This SP can be used when a flash memory card is plugged into the machine See the NVRAM Data Download section for details Program Upload ploads the system program from the flash 0 No memory on the BICU board to a flash 5 826 memory card This SP can be used when a flash memory card is plugged into the machine See the Program Upload section for details Program Download ownloads the system program from a flash 0 memory card to the flash memory on the BICU board This SP can be used when a flash memory card is plugged into the machine See the Program Download section for details Printer Free Run Performs a printer free run 5 901 After selecting 1 press OK or the key 1 Yes twice to start this feature Press the Clear Stop key to stop Test Pattern Print See the Test Pattern Printing section for 5 902 how to print a test pattern Change to the copy mode display by pressing the lt 2 Interrupt key then print out the test pattern LCD Contrast Adjusts the contrast of the LCD on the 0 7 5 903 Adjustment operation panel Auto Off Timer Adjusts the auto off mode timer also used 1 240 Setting for night mode if a fax or printer option is 1 min step 5 904 installed 60 min If this value is changed the user tool setting is also changed CNN dl dla NN Detection the value 4 47 SERVICE PROGRAM MODE Exhaust Fan Control
214. re are two types of threshold e Constant threshold The threshold is fixed e Dynamic threshold The threshold value for each pixel depends on the surrounding pixels The type that is used depends on the selected original type text text photo photo and user tool Image Mode Adjustment setting However if the user selects Service Mode for either Text or Text Photo original type User Tools General Features 09 Image Mode Adjustment the thresholding type can be changed with SP4 922 but only for binary picture processing Constant threshold value The threshold remains the same all the time The threshold can be adjusted with SP 4 923 when the user selects Service Mode for the Text original type but only for binary picture processing Decreasing the threshold value creates a darker image Dynamic threshold value Dynamic thresholding is designed to clearly separate text vector graphic objects from the background It prevents low contrast text from disappearing The software compares each pixel with the pixels immediately surrounding it It is tested in four directions horizontal vertical and in the two diagonal directions If the image density difference between the object pixel and the surrounding pixels is more than a certain value in any one of these directions the pixel is determined to be on an edge Pixels on the edge are treated with dynamic thresholding The threshold is calculated by averaging the den
215. re start paper feed This may be needed when feeding thicker paper This adjustment is made with SP 1 903 it can be adjusted separately for tray 1 and the by pass feeder so place the problem paper type in one of these and adjust SP 1 903 for that tray only 20 September 1999 IMAGE TRANSFER AND PAPER SEPARATION 2 9 IMAGE TRANSFER AND PAPER SEPARATION 2 9 1 OVERVIEW oo an e A267D403 WMF A A267D401 WMF A267D402 WMF The machine uses a transfer roller A which touches the surface of the drum B The high voltage supply board supplies a positive current to the transfer roller which attracts the toner from the drum onto the paper The current depends on the paper width paper type and paper feed tray The curvature of the drum and the discharge plate C help the paper to separate from the drum The high voltage supply board also supplies a negative dc voltage to the discharge plate Drive from the drum through a gear D turns the transfer roller IMAGE TRANSFER AND PAPER SEPARATION 20 September 1999 2 9 2 IMAGE TRANSFER CURRENT TIMING There are two transfer current levels low transfer current level and high transfer current level The image transfer procedure is as follows 1 When the CPU receives the image writing start signal the CPU instructs the high voltage supply board to supply 10uA low transfer current level to the roller This prevents any positively c
216. reater there is a greater Selects whether the transfer roller is cleaned 0 No before each copy job Set this to 1 when dirty background appears on the reverse side of the first page of a copy job However the first copy time will be longer If this SP is at 0 the transfer roller is never cleaned See Detailed Section Descriptions Transfer Roller Cleaning for more details 4 23 SERVICE PROGRAM MODE 20 September 1999 Mode No Class Class 1 2 3 Main Scan Magnification Engine Main Scan Magnification Copy Main Scan Magnification Image Rotation Main Scan Magnification Scanner Leading Edge Registration Scanner Side to side Registration Scanner Adjusts the magnification in the main scan 0 5 0 5 direction for the engine 0 1 step key to toggle between and 0 0 before entering the value The specification is 0 5 This SP value affects all print modes copy printer and image rotation If the main scan magnification is not correct for copying also use SP2 998 2 For image rotation use SP2 998 3 See Replacement and Adjustment Copy Adjustment for details Adjusts the magnification in the main scan 0 5 0 5 direction for copying 0 1 step This SP affects only copying It is added to 0 0 the value of 2 998 1 Adjusts the magnification the main scan 0 5 0 5 direction for copying with image rotation 0 1
217. rel toroidal lens G Then the laser beam goes to the drum through the toner shield glass H The laser synchronizing detector I determines the main scan starting position The speed of the polygon mirror motor is 28 818 9 rpm for 600 dpi 20 September 1999 LASER EXPOSURE 2 3 2 AUTO POWER CONTROL APC LD LEVEL LD ON LD OFF gt os oo e LD OFF LD Controller VIDEO VIDEO gt Monitor Reference Circuit LD Drive Board A267D510 WMF The LD driver IC drives the laser diode To prevent the intensity of the laser beam from changing because of the temperature the machine monitors the current passing through the laser diode LD The machine adjusts the current to the laser diode by comparing it with the reference level from the reference circuit This auto power control is done just after the machine is turned on and during printing while the laser diode is active The laser diode power is adjusted on the production line NOTE Do not touch the variable resistors on the LD unit in the field 2 31 LASER EXPOSURE 20 September 1999 2 3 3 LD SAFETY SWITCH Front Cover Safety and Right Cover Switches 070 570 Laser Beam Optical Path LD Driver IC C A267D006 WMF To ensure technician and user safety and to prevent the laser beam from inadvertently switching on during servicing safety switches are loca
218. rical circuit boards first disconnect then reconnect the connectors before replacing the PCBs 2 If the problem concerns a motor lock first check the mechanical load before replacing motors or sensors 3 When a Level A or B SC occurs while in an SP mode the display does not indicate the SC number If this occurs check the SC number after leaving the SP mode This does not apply to level B codes og as 30 22 SERVICE CALL CONDITIONS 20 September 1999 7 1 2 SC CODE DESCRIPTIONS SC101 Exposure lamp error Definition B The standard while level was not detected properly when scanning the white plate Possible causes Exposure lamp defective Exposure lamp stabilizer defective Exposure lamp connector defective Dirty scanner mirror or scanner mirror out of position SBU board defective SBU connector defective Lens block out of position SC120 Scanner home position error 1 Definition B The scanner home position sensor does not detect the off condition during initialization or copying Possible causes Scanner home position sensor defective Scanner drive motor defective Scanner home position sensor connector defective Scanner drive motor connector defective IOB board defective SC121 Scanner home position error 2 Definition B The scanner home position sensor does not detect the on condition during initialization or copying Possible causes Scanner home position sensor defective
219. roller gear The development drive gears except for the gears in the development unit are helical gears These gears are quieter than normal gears 2 41 DEVELOPMENT 20 September 1999 2 6 3 DEVELOPER MIXING A267D302 WMF This copier uses 2 mixing augers A and B to keep the developer evenly mixed Mixing auger 2 A transports excess developer scraped off the development roller C by the doctor blade D towards the front of the machine Mixing auger 1 B returns the excess developer along with new toner to the rear of the mixing assembly Here the developer is reapplied to the development roller 20 September 1999 DEVELOPMENT 2 6 4 DEVELOPMENT BIAS B os oo an e A A267D303 WMF This machine uses a negative positive development system in which black areas of the latent image are at a low negative charge about 150 50 V and white areas are at a high negative charge about 900 V To attract negatively charged toner to the black areas of the latent image on the drum the high voltage supply board applies a bias of 600 volts to the development rollers throughout the image development process The bias is applied to the development roller shaft A through the drive shaft B The development bias voltage 600 V can be adjusted with SP2 201 1 DEVELOPMENT 20 September 1999 2 6 5 TONER SUPPLY Toner bottle replenishment mechanism A265D507 WMF
220. rong Grayscale Processing for details 2 Weak 0 Disable 1 Strong 2 Weak 4 P Black Line Erase 0 Disable Text Binary 1 Strong 2 Weak P Black Line Erase 0 Disable Text Photo Binary 1 Strong 2 Weak P Black Line Erase 0 Disable Photo binary 1 Strong 2 Weak P Black Line Erase Photo Grayscale P Smoothing This adjustment is only effective for the 10 Pat 1 Main Scan Service Mode original type setting 1 Pat 2 Text Grayscale Selects the smoothing pattern for the small 2 Pat 3 filter used to remove moir 0 Weak 1 3 Through Normal 2 Strong 3 Disabled See Disable Detailed Descriptions Image Processing for details Normally do not change the value 4 35 SERVICE PROGRAM MODE 20 September 1999 P Smoothing This adjustment is only effective for the Main Scan Service Mode original type setting Text Photo Selects the smoothing pattern for the small Grayscale filter used to remove moir 0 Weak 1 3 Through Normal 2 Strong 3 Disabled See Disable P Smoothing Detailed Descriptions Image Processing Main Scan for details Text Binary Normally do not change the value 3 Through Disable P Smoothing Main Scan 1 Pat 2 Text Photo Binary 2 Pat 3 3 Through Disable P fae Selection This adjustment is only effective for the 0 Dynamic fae Service Mode original type setting 1 Static P Binary Selection S
221. s and service staff User Tools are used to input or change the copier s default settings 4 3 1 HOW TO ENTER AND EXIT USER TOOLS Press the User Tools button then select the User Tools program After finishing the User Tools program press the User Tools button to exit User Tools 4 3 2 USER TOOLS TABLE System Setting Table Function Priority Panel Tone Copy Count Display 1 2 3 4 System Reset 5 Function Reset 6 7 8 Panel Off Timer Energy Saver Level Energy Saver Timer 9 Auto Off Timer 10 AOF Keep It On 11 Special Paper Size Tray 1 Tray 2 Tray 3 Tray 4 Pap Tray Priority Auto Tray Switch Special Paper Indicator Tray 1 Tray 2 Tray 3 Tray 4 Output Tray Priority Copier Paper Tray Bypass Tray FAX Paper Tray Bypass Tray Printer Paper Tray Bypass Tray Print Priority Display Contrast Key Operators Tools Show Print Counter Print Counter List Key Operator Access Program Key Operator Code Restricted Access Copier Fax Printer 4 81 USER TOOLS Copy Setting Table 2 Copier 1 General Features APS Priority 20 September 1999 ADS Priority Text Text Photo Photo Original Priority Quick Mode Check Max Copy Q ty Original Tone Re JEn Priority I
222. s is done in all toner supply modes except for fixed mode 2 when toner end is not detected Toner Near End Detection If Vt is at level 6 see the table on the previous page five times consecutively the machine enters the toner near end condition and the toner end indicator starts blinking Then the machine supplies toner for a certain time which depends on the setting of SP 2 923 see the previous page 20 September 1999 DEVELOPMENT Toner Near End Recovery If the machine detects Vt Vref or Vts 4S 5 twice consecutively when in one of the following situations the machine leaves the toner near end condition While in the toner recovery cycle supplying toner on and off for 30 s see the previous page after the machine has detected a toner near end condition During copying in the toner near end condition f the front cover is opened and closed for more than 10 seconds while a toner near end condition exists no z oo an Toner End Detection There are two situations for entering the toner end condition When Vt is level 7 three times consecutively the machine enters the toner end condition When Vt S gt Vt gt Vref or Vis 4S 5 is detected in the toner near end condition then 50 copies can be made after this condition the number of copies between this condition and toner end can be changed using SP2 213 Toner End Hecovery If the
223. s not lit even if Front Cover 311 2 4 P the front cover is opened Safety IOB Shorted The Cover Open indicator is lit even if the front cover is closed Operation hte i operation switch is turned off operation switch is turned on Cover sliodiliig 7 21 BLOWN FUSE CONDITIONS 20 September 1999 7 6 BLOWN FUSE CONDITIONS Fes Rating Symptom when turning on the 115 V 220 240 V main switch Power Supply Board 15 AEG V 8 25 3 15 A250 V 2 A125 V 2 A 250V Anti condensation Tray Heater does not turn on Doors Covers Open is displayed Fug 250 then SC194 is displayed 4 A 125 V 4 250 V Optional peripherals does not work 4 A 125 V 4 A 250V 5 752 is displayed 2 A 125 V 2 A 250 V SC990 is displayed 7 22 30 November 1999 RSS SET UP APPENDIX 1 FOR RUSSIAN C 1 RSS REMOTE SERVICE SYSTEM 1 1 RSS SET UP A267R705 WMF G A2671305 WMF A2651950 WMF NCAUTION Unplug the machine power cord before starting the following procedure 1 Remove the connector cover A 1 clip and disconnect the cable Remove the rear cover B 4 screws 3 Remove the duplex connector cover C 1 screw and the lower rear cover D 2 crews Install the RSS board E 2 screws Install the harness F between the RSS board and the BICU board CN107 NOTE Remove the expansion box if the optional printer has been installed When connecting only one machine
224. scan direction lines parallel to the feed direction are emphasized When the filter is stronger in the sub scan direction lines at right angles to the feed direction are emphasized A stronger MTF filter can make a low ID image visible but moir may become more visible Moir is reduced using a smoothing filter specially designed for this purpose see Smoothing Filter Adjustment Text Photo 2 21 20 September 1999 IMAGE PROCESSING Grayscale Processing 91 916 48 22 91 916 45 00 01 60 o10ug 1Xe LZ 91 916 5 2 91 916 745 WIGS 01 661 01044 1 1 02 1 916 745 02 1 516 745 1 01 9672 00 4 1 61 51 916 48 61 61 616 45 9 01 9606 01044 1 91 81 21 916 48 81 21 916 45 62 01 89 01044 1 11916 45 21 11 616 48 LG 01 010 4 1 9 0 9 916 48 01 9 916 00 01 95 82 1 6 916 745 6 916 48 96982 01 661 IXa L 8 916 PdS 8 GL6 bdS 01 9547 L 2 916 46 2 916 48 3697 01 9606 9 1 916 vdS 9 1 516 45 9662 01 6 2 1 1 d 1 euno 01910101 10 1019010165 9917 S S8 S v S v yyBueds 19114 ueog qng 0 9100 0101001016 69916 9 9 0 19114 ueog
225. scanner with the scanner positioning tools P N A0069104 as shown in the illustration on the next page Wind the new scanner wire around the scanner drive pulley in the correct way as shown Wind the end of the new wire with the ball as shown Wind the end of the new wire with the ring as shown and Install the tension spring on the wire tension bracket Wind the new scanner wire for the other side as well 6 8 20 September 1999 SCANNER UNIT A267R011 WMF 20 Secure the 1st scanner with the scanner wire pins 21 Install the tension spring A to the tension bracket 22 Tighten the tension bracket B 23 Secure the scanner wire pulley C 1 Allen screw 24 Remove positioning tools D After sliding the scanner to the right and left several times re install the positioning tools to check the scanner wire bracket and tension bracket again o E E o 5 a lt 25 Reassemble the scanner and do the scanner and printer copy adjustments see Copy Adjustments E o 5 o 6 9 LASER UNIT 20 September 1999 6 2 LASER UNIT NWARNING Turn off the main power switch and unplug the machine before attempting any of the procedures in this section Laser beams can seriously damage your eyes 6 2 1 CAUTION DECAL LOCATIONS Two caution decals are located in the laser section as shown below CAUTION VORSICHT INVISIBLE LASER RADIATION W
226. select this value This is for the designer s test purposes Do not change the value Turns on all indicators on the operation panel Press OK or the key to check Press the Clear Modes key to exit this SP mode The LCD blinks all on and all off every 2 seconas Auto Paper Tray Selects whether or not auto paper tray shift 0 No Shift is done 1 Yes 4 43 SERVICE PROGRAM MODE 20 September 1999 Mode No AS DLT Double Count If Yes is selected the total counter mechanical counter and the current user code counter counts up twice when A3 11 x 17 paper is used ADS Level Selection Selects the image density level that is used 1 7 5 106 in ADS mode 1 notch step 4 Option Counter Type Selects the optional counter type 5 113 After installing the optional key counter this SP must be set to 1 Key Counter Up Determines whether the total counter counts 0 Feed In 5 116 27 Timing up at paper feed in or at paper exit 1 Exit Opt Counter Reset This SP is for Japan only Do not change 0 Yes 5 120 Setting the value 1 Stand by 2 None DF 180 Image Select whether the image is rotated 180 0 Rotation upside down in DF mode 5 143 Selects Yes when making a copy on a letter headed page when feeding from a paper tray Copier enabled in copy mode or not 1 Yes is also changed Fax enabled in fax mode or not 1 Yes is also cha
227. shold in dynamic binary Center mode for pixels not on edges of text graphic elements Only used for binary picture processing This adjustment is only effective for the Text Service Mode original type setting If Dynamic Binary is selected with SP4 922 1 this mode is enabled See Detailed Descriptions Image Processing for details Smoothing Filter This adjustment is only effective for the Photo Grayscale Service Mode original type setting for Photo mode Adjusts the smoothing filter P Smoothing Filter level If 0 is selected smoothing is 4 927 disabled See Detailed Descriptions Image Processing for details Weakest Strongest 1 2 0 3 4 5 6 7 8 Scanner Gamma This adjustment is only effective for the Text Grayscale Service Mode original type setting Selects the scanner gamma curve If 0 is selected the scanner gamma curve is either AE or NAE depending on the setting for the other original types in the same mode e g AE linear for text greyscale as used when Scanner Gamma pale normal or generation modes are Text Photo selected See Detailed Descriptions Grayscale Image Processing for details Normally do not change the value P Scanner Gamma Photo Grayscale 4 37 SERVICE PROGRAM MODE Text Binary P Scanner Gamma Text Photo Binary P Scanner Gamma Photo Binary P Matrix Filter Text Grays
228. sities of pixels in the surrounding 7 x 7 area However the calculated threshold cannot exceed maximum and minimum limits if it does the upper or lower limit is used Pixels that are not on an edge are treated with a constant threshold value As a side effect of the dynamic threshold process copies of originals where the rear side is visible through the paper or the background is dark may tend to have dirty background In this case it is necessary to adjust the image density level with the image density key on the operation panel These adjustments are only for binary picture processing mode 2 26 20 September 1999 IMAGE PROCESSING e Edge detection SP4 931 vertical direction 4 932 horizontal direction 4 933 diagonal from top right to bottom left 4 934 diagonal from top left to bottom right Decreasing the SP mode value causes a lighter line to be detected as an edge e Threshold limits for edges and the threshold for non edge pixels SP4 924 Max 4 925 Min and 4 926 Center used for non edge pixels The closer that the upper or lower limit is adjusted to the center threshold the fewer stains appear However a low ID contrast image cannot be copied os oo an e Error Diffusion The error diffusion process reduces the difference in contrast between light and dark areas of a halftone image Each pixel is corrected using the difference between it and the surrounding pixels
229. size threshold set with SP1 911 8 up to 200 ms including the middle size threshold set with SP1 911 9 If a middle size threshold is not stored with SP1 911 9 this SP is not used Do not input a value greater than 1200 Use this SP when a paper feed problem occurs from the 4th paper tray See Optional Paper Tray Unit Paper Lift Mechanism for details on SP1 91 1 Adjusts the upper paper lift motor forward rotation time for paper of the same size as or smaller than the small size threshold set with SP1 911 8 The motor rotates forward when the remaining paper amount is lower than the value of SP1 91 1 6 Use this SP when a paper feed problem occurs when paper in the 4th paper tray is running low See Optional Paper Tray Unit Paper Lift Mechanism for details on SP1 91 1 4 14 20 September 1999 4th Bottom Plate Pressure Re adjustment Middle Size Optional PFU 4th Paper Amount Small Size Optional PFU 4th Paper Amount Middle Size Optional PFU 4th Small Paper Size Setting Optional PFU 4th Middle Paper Size Setting Optional PFU Tray Motor Reverse Time Duplex Inverter Motor Speed Adjustment Forward Low SERVICE PROGRAM MODE Adjusts the upper paper lift motor forward 0 2000 rotation time for paper sizes larger than the 1 ms step small size threshold set with SP1 911 8 1300 ms to and including the middle size threshold set with SP1 911 9
230. ss cycles With SP1 107 this number can be set to 3 10 or 20 USA version or 5 10 or 20 Europe Asia version Soft start occurs every time the fusing lamp power switches on i e at some time during every second not just at the start of the print job NOTE This SP mode is effective to counter flickering lights However generated noise increases if the setting is changed from the default If a radio or a TV is close by the machine the noise may have some effect on the image or sound Fusing Lamp Start jM M 1 Full power now applied Gradual build up AC Power to 3 3 the Fusing Lamp Zero cross A267D512 WMF IMAGE FUSING AND PAPER EXIT 20 September 1999 2 10 7 OVERHEAT PROTECTION If the hot roller temperature becomes higher than 231 C the CPU cuts off the power to the fusing lamp At the same time SC543 is generated Even if the thermistor overheat protection fails there is a thermofuse in series with the common ground line of the fusing lamp If the temperature of the thremofuse reaches 169 C the thermofuse opens removing power from the fusing lamp At the same time SC 542 is generated and the machine stops operating 2 10 8 PAPER EXIT A267D601 WMF The paper overflow detection sensor A is located at the paper exit section of the fusing unit When this sensor is activated the machine detects that the paper stack height exceeded a certain limit and sto
231. step mode 0 0 This SP affects only image rotation mode It is added to the value of 2 998 1 Adjusts the magnification in the main scan direction for scanning 1 0 41 0 0 1 step 0 096 Use the C key to toggle between and before entering the value The specification is 1 See Replacement and Adjustment Copy Adjustment for details Adjusts the leading edge registration for 5 0 49 0 The image moves in the direction of the 0 0 mm leading edge Use the key to toggle between and before entering the value The specification is 2 1 5 mm See Replacement and Adjustment Copy Adjustment for details Adjusts the side to side registration for scanning in platen mode The image disappears at the left side 4 The image appears Use the key to toggle between and before entering the value The specification is2 1 5 mm See Replacement and Adjustment Copy Adjustment for details 4 24 20 September 1999 Mode No Class Class 1and2 3 Erase Margin Erase Margin 3 Left Side Erase Margin 4 Side Scanner Free 4 013 White Plate Scanning 1 Start Position Um White Plate Scanning 2 Scanning Area Sub Scan 4 101 Magnification Scanner 4 301 APS Data Display APS Small Size Original 4 303 Leading Edge Erase Margin 2 Trailing Edge 1 SERVICE PROGRAM MODE Adjusts the erase margin a
232. strips of tape 3 17 AUTO REVERSE DOCUMENT FEEDER INSTALLATION 20 September 1999 SO SNC EDS 91 A8581103 WMF tm A8581104 WMF Remove the left scale A 2 screws Place the DF exposure glass B on the glass holder NOTE When installing the DF exposure glass make sure that the white point C is on the lower front side of the glass as shown Peel off the backing D of the double sided tape attached to the rear side of the scale guide E then install it 2 screws removed in step 2 Install the two stud screws F Mount the DF on the copier then slide the DF to the front Secure the DF unit with two screws G Connect the cable H to the copier 3 18 20 September 1999 AUTO REVERSE DOCUMENT FEEDER INSTALLATION 5 5 N A8581501 WMF 9 Attach the appropriate scale decal A as shown 10 Turn the main power switch on Then check if the document feeder works properly 11 Make a full size copy Then check to make sure the side to side and leading edge registrations are correct If they are not adjust the side to side and leading edge registrations 3 19 INTERCHANGE UNIT INSTALLATION 20 September 1999 3 6 INTERCHANGE UNIT INSTALLATION 3 6 1 COMPONENT CHECK Check the quantity and condition of the components against the following list No Description Q ty 1 Interchange Unit 1 2 Connector Cover 3 Tapping Screw M3x8 B3001101 WMF 20 September 19
233. surface To prevent the toner from transferring to the back side of the printouts the transfer roller requires cleaning before the next printing run During transfer roller cleaning the high voltage supply unit supplies a negative cleaning current 4 uA to the transfer roller Any negatively charged toner on the transfer roller is then transferred back to the drum Then a positive cleaning current 10 is applied to the transfer roller to push back to the drum any positively charged toner on the transfer roller ao os um oo an The machine goes through the cleaning mode in the following conditions Before starting the printing job only if enabled with SP2 996 note that the default setting is off Just after the power is switched on After a copy jam has been cleared The transfer roller cleaning function is done Also the transfer roller cleaning current can be adjusted using SP2 301 4 2 9 4 PAPER SEPARATION MECHANISM L 3 ll Ni A267D403 WMF A267D401 WMF The discharge plate A and the drum curvature of the drum help the paper to separate away from the drum The high voltage supply board applies a constant dc voltage 1 8 kV when feeding from a paper tray or 2 1 kV from the duplex unit to the discharge plate The discharge plate voltage can be adjusted using SP2 901 IMAGE FUSING AND PAPER EXIT 20 September 1999 2 10 IMAGE FUSIN
234. t cover See Image Density Sensor Remove the registration guide plate A 2 screws Remove the paper support roller B 2 snap rings 2 bushings Remove the sensor bracket C 1 screw Replace the registration sensor D 1 connector vp gra por ie o 5 o on 5 og PAPER FEED 20 September 1999 6 6 9 RELAY SENSORS A267R720 WMF Upper Relay Sensor Remove the right cover See Image Density Sensor Remove the lower right cover See Relay Clutches Remove the guide plate A Remove the bracket B 1 screw Remove the guide plate C 2 screws Remove the sensor bracket D 1 screw E X M E Replace the upper relay sensor E 1 connector Lower Relay Sensor Remove the right lower door F 1 clip Remove the guide plate G Remove the guide plate H 2 screws Remove the sensor bracket I 1 screw Replace the lower relay sensor J 1 connector 20 September 1999 PCBS AND OTHER ITEMS 6 7 PCBS AND OTHER ITEMS 6 7 1 BICU BOARD ee qur t A267R517 WMF A267R516 WMF vci Er 60 2 on os of og Remove the rear cover See Paper Tray Lift Motors Remove the optional finisher if it has been installed Remove the application cover A 1 screw Remove the expansion box if the fax printer or scanner option units have been installed Remove the optional copier
235. t each side for scanning Do not adjust this unless the user wishes to have a scanner margin that is greater than the printer margin Performs a scanner free run with the exposure lamp on After selecting 1 press OK or the key twice to start this feature Press the Clear Stop key to stop Adjusts the scanning start position on the white plate for auto shading The default is 6 mm from the leading edge The setting specifies how far scanning starts from the default position Adjusts the width of the area on the white plate in the sub scan direction that is scanned for auto shading The default is 5 mm The current setting specifies the difference from this default Adjusts the magnification in the sub scan direction for scanning If this value is changed the scanner motor speed is changed key to toggle between and before entering the value The specification is 0 596 See Replacement and Adjustment Copy Adjustment for details Displays the status of the APS sensors and platen DF cover sensor See APS and Platen ADF Cover Sensor Output Display after the SP mode table Selects whether the copier determines that the original is A5 size when the APS sensor cannot detect the size If A5 lengthwise is selected paper sizes that cannot be detected by the APS sensors are regarded as A5 lengthwise If Not detected is selected Cannot detect original size will be displayed 4 25
236. t reach the 1st relay sensor 030 Paper does not reach the 2nd relay sensor 031 Paper does not reach the 3rd relay sensor 032 Paper does not reach the LCT feed sensor 050 Paper does not reach the registration sensor from by pass unit 070 Paper caught at the registration sensor 121 Paper does not reach the exit sensor 122 Paper caught at the exit sensor 123 Paper does not reach the duplex entrance sensor 124 Paper caught at the duplex entrance sensor 125 Paper does not reach the duplex exit sensor 131 Paper does not reach the bridge exit sensor 132 Paper caught at the bridge exit sensor 133 Paper does not reach the bridge relay sensor 134 Paper caught at the bridge relay sensor 149 Paper does not reach the 1 bin exit sensor 150 Paper caught at the 1 bin exit sensor 4 68 20 September 1999 SERVICE PROGRAM MODE 160 Paper does not reach the finisher entrance sensor 161 Paper caught at the finisher entrance sensor 162 Paper does not reach the finisher exit sensor 163 Paper caught at the finisher exit sensor 164 Paper does not reach the staple tray 165 Paper stays in the staple tray NOTE The NVRAM can store data for up to 10 copy jams If more than 10 copy jams occur the oldest data is erased 4 2 7 SMC DATA LISTS SP5 992 1 Access SP mode 5 992 and select the number corresponding to the list that you wish to print 2 Press th
237. t roller peel off 3 cm 1 inch from both ends of the protective sheet on the new roller 2 Do not touch the surface of the rollers 3 When reinstalling the fusing lamp secure the front screws first 4 Be careful not to damage the surface of the hot roller dee Ue om 6 19 FUSING EXIT 20 September 1999 6 5 5 PRESSURE ROLLER CLEANING ROLLER A267R507 WMF 1 Remove the fusing lamp and hot roller assembly See Hot Roller and Fusing Lamp 2 Replace the pressure roller A 1 E ring 2 bushings 1 spring 3 Replace the cleaning roller B NOTE Do not touch the surface of the rollers 20 September 1999 FUSING EXIT 6 5 6 PAPER EXIT SENSOR PAPER OVERFLOW SENSOR 2 A267R601 WMF C 1 Remove the front upper cover A 1 screw 1 peg 2 Remove the exit cover B NOTE If the optional 1 bin tray unit and or interchange unit have been installed remove them 3 Replace the exit sensor C 1 connector 4 Replace the overflow sensor D 1 connector vcio 5 Er on Cs ay og PAPER FEED 20 September 1999 6 6 PAPER FEED 6 6 1 FEED ROLLERS A A267R723 WMF 1 Remove the paper tray A 2 Pull the lever B 3 Replace the feed roller C NOTE Do not touch the roller surface with bare hands After reinstalling the feed roller return the lever A 20 September 1999 PAPER FEED 6 6 2 PAPER END SENSOR A A267R724 WMF 1
238. ted at the front and right covers The switches are installed on the 5VLD line coming from the power supply unit through the IOB and BICU boards When the front cover or the right cover is opened the power supply to the laser diode is interrupted 2 32 20 September 1999 PHOTOCONDUCTOR UNIT PCU 2 4 PHOTOCONDUCTOR UNIT PCU 2 4 4 OVERVIEW os oo an e A267D201 WMF The PCU consists of the components shown in the above illustration An organic photoconductor OPC drum diameter 30 mm is used in this machine 1 Cleaning Blade 6 Development Roller 2 Toner Collection Coil 7 Development Unit 3 Pick off Pawl 8 Charge Roller 4 OPC Drum 9 Charge Roller Cleaning Pad 5 1 ID Sensor see note 0 Quenching Lamp see note NOTE These parts are not included in the PCU The machine informs the user when the PCU life has finished However the user can continue to make copies SP5 912 can be used to enable or disable this warning message and to change the default replacement interval the default is 60k 2 33 PHOTOCONDUCTOR UNIT PCU 20 September 1999 2 4 2 DRIVE A267D202 WMF The main motor A drives the drum B through a series of gears a timing belt C and the drum drive shaft D The main motor assembly includes a drive controller which outputs a motor lock signal when the rotation speed is out of the specified range The fly wheel E
239. ter finishing press the key to remove the Vt data from the screen Adjusts the voltage that is applied to the separation plate during printing at the leading edge of the paper on the front side If the copies have pawl marks at the leading edge increase this voltage Adjusts the voltage that is applied to the separation plate during printing on the image area of the paper on the front side If the copies have pawl marks in the image area increase this voltage Adjusts the voltage applied to the separation 1000 plate during printing at the leading edge of 4000 the paper on the rear side 1 V step See 5 2 901 1 2100 V Adjusts the voltage applied to the separation 1000 plate during printing at the image area of the paper on the rear side See 5 2 901 2 4 20 20 September 1999 SERVICE PROGRAM MODE Class Class FCI Smoothing Selects whether the FCI smoothing function 0 No to remove jagged edges is enabled or Disabled 2 902 disabled 1 Yes FCI smoothing is only used with the Sharp Enabled Text setting in text mode with binary picture processing Gradation Type This is for the designer s test purposes 0 System Do not change the value 1 400 dpi 2 None 3 600 dpi Tailing Correction Shifts the image across the page at the Shift Value interval specified by SP 2 906 2 When making many copies of an original 1 that contains vertical lines such as a table sep
240. the LD unit A 3 screws 1 connector NOTE 1 Do not remove the screws B 2 Do not touch any variable resistors on the LD unit 6 12 20 September 1999 LASER UNIT 6 2 5 LASER SYNCHRONIZATION DETECTOR A267R106 WMF D C vcio 5 Er on Cs oa og A267R107 WMF Remove the laser unit See Laser Unit Remove the heat sink A 4 screws Remove the laser unit cover B 3 screws Remove the bracket C 1 screw Mc Replace the laser synchronization detector D 1 connector PHOTOCONDUCTOR UNIT PCU 20 September 1999 6 3 PHOTOCONDUCTOR UNIT PCU 6 3 1 PCU D 60 7 A267R203 WMF 1 Open the right cover A and front cover B 2 Pull the PCU C out slightly while pushing the release lever D NOTE Do not touch the drum surface with bare hands 6 14 20 September 1999 TRANSFER UNIT 6 4 TRANSFER UNIT 6 4 1 TRANSFER ROLLER UNIT A267R401 WMF 1 Open the right cover A 2 Remove the transfer roller unit B 1 hook NOTE Do not touch the transfer roller surface 5 Er on Cs og 6 15 TRANSFER UNIT 20 September 1999 6 4 2 IMAGE DENSITY SENSOR is de Wey T 5 A267R202 WMF Open the right cover A Remove the unit band B Remove the right cover A 1 connector Remove the sub right cover C 2 hooks Replace the image density sensor D 1 conne
241. the drum 5 ID SENSOR The laser forms a sensor pattern on the drum surface The ID sensor measures the reflectivity of the pattern The output signal is one of the factors used for toner supply control Also the ID sensor measures the reflectivity of the drum surface The output signal is used for charge roller voltage control 6 IMAGE TRANSFER Paper is fed to the area between the drum surface and the transfer roller at the proper time for aligning the copy paper and the developed image on the drum surface Then the transfer roller applies a high positive charge to the reverse side of the paper This positive charge pulls the toner particles from the drum surface onto the paper At the same time the paper is electrostatically attracted to the transfer roller 7 PAPER SEPARATION Paper separates from the drum as a result of the electrostatic attraction between the paper and the transfer roller The discharge plate helps separate the paper from the drum 8 CLEANING The cleaning blade removes any toner remaining on the drum surface after the image transfers to the paper 9 QUENCHING The light from the quenching lamp electrically neutralizes the charge on the drum surface 20 September 1999 BOARD STRUCTURE 1 8 BOARD STRUCTURE 1 8 1 OVERVIEW o c Standard LSD Mother LD Unit Options Fax Unit 9 BICU c Polygon Motor o SBU EMB Paper Tr
242. the finisher and remove the tapes 1 000 SHEET FINISHER INSTALLATION 20 September 1999 ON DOO FR C I9 B A6811101 WMF CNN E A6811502 WMF Install screw A loosely Hang the front stand B on the screw which was installed in step 2 Secure the front stand 3 screws including screws A Install the rear stand C 2 screws Pull out the stapler unit D Draw out the locking lever E 1 screw Align the finisher on the stands and lock it in place by pushing the locking lever Secure the locking lever 1 screw and push the stapler unit into the finisher 20 September 1999 1 000 SHEET FINISHER INSTALLATION e S 5 S o A6811501 WMF 10 Secure the finisher 1 screw 11 Adjust the securing knobs A under the front and rear stand until the finisher is perpendicular to the floor 12 Install the shift tray B 1 snap ring NOTE Make sure that the three pegs C fit into the slots D properly 13 Connect the finisher cable E to the optional bridge unit 14 Attach the staple position decal F to the ARDF as shown 15 Turn on the main power switch and check the finisher operation COPIER FEATURE EXPANDER INSTALLATION 20 September 1999 3 13 COPIER FEATURE EXPANDER INSTALLATION B A8871704 WMF A8871101 WMF NCAUTION Before installing this option turn off the main switch and disconnect
243. the registration sensor 64 Jamsin the duplex 79 Paper does not reach the exit sensor 7A Paper caught at the exit sensor 7B Paper does not reach the duplex entrance sensor 7C Paper caught at the duplex entrance sensor 7D Paper does not reach the duplex exit sensor 83 Paper does not reach the bridge exit sensor APPENDIX 4 30 November 1999 JAM HISTORY Code Meaning 84 caught at the bridge exit sensor 85 Paper does not reach the bridge relay sensor 86 Paper caught at the bridge relay sensor 95 Paper does not reach the 1 bin exit sensor 96 Paper caught at the 1 bin exit sensor AO Paper does not reach the finisher entrance sensor A1 Paper caught at the finisher entrance sensor A2 Paper does not reach the finisher exit sensor A3 Paper caught at the finisher exit sensor 4 Paper does not reach the staple tray A5 Paper stays in the staple tray Document Feeder Meaning Original does not reach the registration sensor Original caught at the registration sensor Original does not reach the feed out sensor Original caught at the feed out sensor Original does not reach the inverter sensor Original caught at the inverter sensor Short interval between originals No original at the stamp 1 4 2 PAPER SIZE
244. there are sheets in the exit tray 1 Yes If the LED does not light when paper enters the tray the user cannot see easily if paper is there or not 1 For machines with no fax printer option 5 946 the machine does not do auto off with the fax printer option the machine will go to night mode but the LED still works 0 For machines with a fax printer option the machine does not light the exit tray LED even in night mode By pass LG Size For American models only 0 No 5 950 Detection Selects whether the machine can detect LG 1 Yes paper or LT paper in the by pass tray 1 Inter Leaves Count Selects the interleave count when interleave 1 20 Setting mode is selected with User Tools System 5 951 Settings Print Priority pages step In interleave mode the machine will print 5 5 pages pages of one job then 5 pages of the other job and so on Paper Type Reset Selects the paper type for the by pass tray By pass Tray at power up or after pressing the key 5 952 If this is 2 the previously used paper type will be selected 5 991 VRAM Data This is for the designer s test purposes 0 No Download Do not change the value 1 Yes SMC Printing Prints the machine status history data list 1 SP See the SMC data Lists section for how to 2 UP 5 992 print the lists 3 Log 5 is for facsimile transmission 4 All 6 006 B 5 Big Font ADF Registration Adjusts the side to side registration
245. tion High Voltage Supply Supplies high voltage to the drum charge roller development roller and transfer roller Expands the memory capacity for the copier Information PCB9 Memory Option features Lamps UEM intensity light to the original for L2 Fusing Lamp Quenching Lamp Heats the hot roller Neutralizes any charge remaining on the drum surface after cleaning Anti condensation Option Turns on when the main power switch is off to prevent moisture from forming on the optics Tray Option Turns on when the main power switch is off to prevent moisture from forming around the paper trays Fusing Thermofuse Opens the fusing lamp circuit if the fusing unit overheats Fusing Thermistor Detects the temperature of the hot roller Laser Synchronization Detector Detects the laser beam at the start of the main scan Mechanical Counter Keeps track of the total number of prints made Key Counter Option Used for control of authorized use If this feature is enabled for copying copying will be impossible until it is installed DRIVE LAYOUT 1 6 DRIVE LAYOUT 20 September 1999 Scanner 1 PCU Transfer Drive Scanner Drive Motor Main Motor Registration Clutch Upper Paper Feed Clutch Upper Transport Clutch Lower Paper Feed Clutch Lower Tr
246. to the line adapter skips step 6 6 Set the jumper switch on the RSS board as shown default setting is 1 2 7 Remove the cover H from the lower rear cover APPENDIX 1 RSS SET UP 30 November 1999 Line Adapter Machine No Jumper Set PI device code 8 Reassemble the machine 9 Connect the modular cord A to the line adapter as shown 10 Install the line adapter refer to chapter 2 1 L ADP Installation Procedure in the CSS Service Manual 11 Turn on the machine When connecting only one machine to the line adapter skips step 12 12 Enter the Copier SP mode and set the PI device code with SP5 821 default 0 NOTE After changing the value turn the main power switch off and on to enable the PI device code APPENDIX 2 30 November 1999 SP MODE SETTING 1 2 SP MODE SETTING After installing the machine and line adapter perform SP5 816 CSS Function Check the value of the following SP modes Ensure they are set correctly NOTE SP5 507 is only for the Japanese version Do not change e SP5 501 1 PM Alarm Interval 120k e SP5 504 Jam Alarm Setting 40 SP5 505 Error Alarm Setting 10 SP5 508 1 CE Call Jam Level 1 1 On SP5 508 2 CE Call Jam Level 2 1 On SP5 590 3 CE Call Cover Open 1 On 1 3 CHECKING ITEMS USING RSS 1 3 1 READ ONLY ITEMS Item Item Paper end Paper size
247. tray 2 Side to Side 5 Registration By pass Feed Side to Side Registration Duplex 12 5 12 5 0 1 mm step 0 0 mm 12 5 12 5 0 1 mm step 0 0 mm 49 0 9 0 0 1 mm step 0 0 mm Adjusts the printing side to side registration from each paper feed station using the Trimming Area Pattern SP5 902 No 10 Use the key to toggle between and before entering the value The specification is 2 1 5 mm See Replacement and Adjustment Copy Adjustment for details 1 002 Paper Feed Timing Adjusts the paper feed clutch timing at 0 10 1st Paper Feed registration The paper feed clutch timing 1 mm step determines the amount of paper buckle at 5 mm registration A larger setting leads to more buckling 4 5 SERVICE PROGRAM MODE 20 September 1999 Paper Feed Timing Adjusts the paper feed clutch timing at 2nd 3rd 4th Paper Feed LCT and By pass Feed Paper Feed Timing Duplex registration The paper feed clutch timing determines the amount of paper buckle at registration A larger setting leads to more buckling 1 mm step 5 mm 1 mm step mm 1 007 By pass Paper Size Displays the by pass paper width sensor Display output Fusing Temperature Adjusts the fusing temperature for standby sd 190 Adjustment mode 1 C step Stand by 170 C Fusing Temperature En PE the fusing temperature for low Adjustment Low Power Level 2 Fusing Temp
248. trays 400 ms 300 ms default not used Also the point at which this adjustment is applied near end 50 sheets 25 full 75 full can be selected G in the graph using the following SP modes Small Size Middle Size Paper Size HLT A5 or smaller None default setting default setting 1st paper tray SP1 908 6 SP1 908 7 2nd paper tray SP1 909 6 SP1 909 7 3rd paper tray SP1 910 6 SP1 910 7 4th paper tray SP1 911 6 SP1 911 7 Default all trays Near end Near end default not used 2 62 20 September 1999 PAPER FEED 2 8 8 PAPER SIZE DETECTION A4 Lengthwise A5 Lengthwise 81 2 x 14 a oo an e BA 11 x 17 B5 Sideways 11 x 81 2 B5 Lengthwise 81 2 x 11 Asterisk e o gt N Not pushed FF Pushed O e e o 90 A265D523 WMF There are four paper size microswitches A on the front right plate of the paper tray unit The switches are actuated by a paper size actuator B behind the paper size indicator plate which is on the front right of the tray Each paper size has its own actuator with a unique combination of notches To determine which size has been installed the CPU reads which microswitches the actuator has switched off The CPU disables paper feed from a tr
249. uld not be used in the field because it affects ID sensor pattern density which affects toner supply However see Troubleshooting Toner Density for one occasion when this SP mode can be used Selects the number of copies that can be 0 50 pages made after toner near end has been 1 20 pages detected If the user normally makes copies with a high proportion of black reduce the interval The Vt values are displayed as follows e g Vi2 14 2 29 The left value is the actual TD sensor output The right value is the target Vref value Tables Displays the Vsg Vsp Power Vsg Vsp and Vt values for ID sensor error conditions See ID Sensor Error Analysis later in this section for more detail There is no SC code for the ID sensor error in this machine Check the ID sensor values with this SP if abnormal copies are made such as dirty background to determine whether the problem is due to incorrect toner density control Adjusts the current applied to the transfer d roller during copying from a paper tray when 1 the user uses the Normal paper setting Adjusts the current applied to the transfer roller during copying from the by pass tray These settings are also used if the 2 tray is 2 used and special paper is selected with the switch in the tray If the user normally feeds thicker paper from the by pass tra 29 tray special paper use a higher setting If waste toner is re
250. used if the machine is moved to another location in the future 1 Remove the tapes and the shipping retainer A on the exterior of the copier 2 Install the end fence B 3 7 COPIER INSTALLATION 20 September 1999 A2671504 WMF 3 Open the front cover A Remove the red tag B and toner seal C then peel the sealing tape D off to install the developer 5 Raise the toner bottle holder lever E push lever F down and pull the toner bottle holder G out 6 Shake the toner bottle H well NOTE Do not remove the toner bottle cap I until after shaking 7 Unscrew the bottle cap I and insert the bottle into the holder NOTE Do not touch the inner bottle cap J 8 Reposition the holder and press down the holder lever to secure the bottle 20 September 1999 COPIER INSTALLATION i 5 A2671503 WMF 22 p d 3 A2651511 WMF 9 Pull the paper tray out and turn the paper size dial to select the appropriate size Adjust the side guides and end guide to match the paper size NOTE To move the side guides first pull out the tray fully then push down the green lock at the rear of the tray 10 Attach the appropriate paper tray number decal A to the paper tray NOTE Paper tray number decals are also used for the optional paper tray or the optional LCT Keep any remaining decals for use with these optional units 11 European versio
251. using lamp turned on Possible Causes e Thermistor defective e Poor connection of the fusing unit e Power supply unit defective og as 30 22 SC547 Zero cross signal malfunction Definition A Zero cross signals are not detected within a certain period Possible causes Power supply board defective defective e BICU defective 7 9 SERVICE CALL CONDITIONS 20 September 1999 SC590 Exhaust fan motor error Definition B The CPU detects an exhaust fan lock signal for more than 3 5 seconds Possible causes Poor connection of the exhaust fan motor e Too much load on the motor drive SC610 Communication error between IOB and duplex unit Definition B The IOB cannot communicate with the duplex unit properly Possible causes Poor connection between the and duplex unit e OB defective Duplex control board defective SC620 Communication error between IOB and ADF Definition B The IOB cannot receive a response from the ADF main board for 4 seconds or more Possible Causes Poor connection between the IOB and ADF main board DF connector e ADF main board defective e OB defective 5 691 Communication error between BICU and fax controller Definition B The BICU board cannot communicate with the fax controller properly Possible causes Poor connection between the BICU board and the fax controller BICU board defective Fax controlle
252. ut damage while the motor reverses Adjusts the duplex inverter motor speed during forward rotation at low speed Use this SP when paper often jams at the duplex entrance area Do not use in the field unless directed by service centre staff 4 15 SERVICE PROGRAM MODE 20 September 1999 No Te ENS s 1and2 Duplex Inverter Motor Speed Adjustment Forward High Duplex Inverter Motor Speed Adjustment Reverse Low Duplex Inverter Motor Speed Adjustment Reverse High Duplex Transport Motor Speed Adjustment Forward Low Duplex Transport Motor Speed Adjustment Forward High Fusing Idling Charge Roller Bias Adjustment Printing Charge Roller Bias Adjustment ID sensor pattern Adjusts the duplex inverter motor speed 4 4 during forward rotation at high speed 1 step Use this SP when paper often jams at the duplex entrance area Do not use in the field unless directed by service centre staff Adjusts the duplex inverter motor speed 4 4 during forward rotation at low speed 1 step Use this SP when paper often jams at the 0 duplex inverter area Do not use in the field unless directed by service centre staff Adjusts the duplex inverter motor speed 4 4 during forward rotation at high speed 1290 Use this SP when paper often jams at the duplex inverter area Do not use in the field unless directed by service centre staff Adjusts the duplex transport moto
253. value or smaller Normal paper size range Paper sizes greater than the Small SP mode 2 60 20 September 1999 PAPER FEED Feed Pressure Adjustment The pressure can be adjusted to solve a paper feed problem This adjusts the amount of lift motor reverse just after the lift sensor is activated when lifting the stack to the paper feed position To apply less pressure to the top of the stack the amount of reverse should be increased Effect of the Amount of Remaining Paper N Feed Pressure i 55 T A4 size a 2 A3 size Paper 0 Amount 50 sheets 25 75 9b 500 sheets Near end A265D518 WMF From tray full to paper near end The pressure between the top of the stack and the fed roller also depends on the amount of remaining paper especially for small paper sizes as shown in the above graph The pressure for A5 changes significantly between stack heights of 500 sheets and 50 sheets but not much for A4 or A3 paper For 500 sheets of A5 the pressure is too high To counter this the lift motor reverses 600 ms in the graph as explained in the previous section The SP modes in the following table are for solving feed problems that occur when the tray is between full and near end Normal Small Size Middle Size Paper Size Greater than HLT A5 HLT A5 or smaller None default setting default setting default setting 1st paper tray SP1 908 1 SP1 908 2 S
254. was below 55 C for 15 seconds or below 75 C for 20 seconds Possible causes Fusing thermistor defective or out of position Fusing lamp open Fusing thermofuse open Power supply board defective Poor connection of the fusing unit SC542 Fusing temperature warm up error Definition A The fusing temperature does not reach 155 C within 60 seconds after the main switch is turned on Possible causes Fusing thermistor defective or out of position Fusing lamp open Fusing thermofuse open Power supply board defective Poor connection of the fusing unit 7 8 20 September 1999 SERVICE CALL CONDITIONS SC543 Fusing overheat error Definition A A fusing temperature of over 231 C is detected for 1 second by the fusing thermistor Possible causes e Fusing thermistor defective e Power supply board defective SC544 Fusing low temperature error Definition A A fusing temperature of lower than 100 C is detected for 1 second by the fusing thermistor Possible causes e Fusing thermistor defective Power supply board defective Poor connection of the fusing unit SC546 Unstable fusing temperature Definition A Fusing temperature more than 60 C The fusing temperature does not rise 2 C or more within 6 seconds after the fusing lamp has been on Fusing temperature 60 C or less The fusing temperature does not rise 2 C or more during a 6 second interval the 6 s timer starts 14 s after the f
255. wer Mode Level 1 Low Power Mode Level 2 80 C 30s 2 79 ENERGY SAVER MODES 20 September 1999 2 11 4 AUTO OFF MODE Auto off mode is used only if no optional fax or printer unit is installed Entering auto off mode The machine enters auto off mode when one of the following is done e The auto off timer runs out after the last job SP 5 904 or User Tools System Settings Auto Off Timer default setting is 60 min The operation switch is pressed to turn the power off What happens in auto off mode When the machine enters auto off mode the operation switch USA or the main power switch Europe Asia turns off automatically The fusing lamp and all dc supplies except 5VE 5V for energy saver mode turn off At this time only the main power LED is lit Returning to stand by mode The machine returns to stand by mode when the operation switch USA or the main power switch Europe Asia is pressed Operation Energy Saver Switch LED Fusing Temp System 5V Note Room Temp Only is Off Off Fusing lamp off Off supplied to the BICU Disabling auto off mode If the user wishes to disable auto off mode use the following user tool User Tools System Settings AOF change the setting to OFF 20 September 1999 ENERGY SAVER MODES 2 11 5 NIGHT MODE This is used instead of auto off mode when an optional fax and or printer unit is installed There are two ty
256. y Standard 20 MB Optional memory 48 MB 20 September 1999 MACHINE CONFIGURATION 1 2 MACHINE CONFIGURATION 1 2 1 SYSTEM COMPONENTS c gt og c A265V501 WMF 1 5 MACHINE CONFIGURATION 20 September 1999 Common Version Item Machine Code with No Copier Copier Russian C1A A265 1 Copier Russian C1B A267 1 ARDF Optional A858 3 Platen Cover Optional A893 Stinger C 2 Paper Tray Unit 2 tray Optional A860 11 21 9 56 LCT Optional A862 8 1 bin Tray Optional A898 4 Shift Tray Optional B313 12 Duplex Unit Optional A896 6 By pass Tray Optional A899 7 Interchange Unit Optional B300 5 Bridge Unit Optional A897 11 1000 sheet Finisher Optional A681 NAD 10 Copier Feature Expander Memory A887 Stinger C 48 MB Optional Key Counter Bracket Adam Fax Fax Controller Optional A895 01 02 03 G3 Interface Unit Optional A895 11 12 Handset Optional H160 Adam ISDN Optional A895 21 22 PC Fax Expander Optional A894 Stinger C Fax Function Expander Optional A892 Stinger C Printer Printer Controller Optional B306 PostScript Kit Optional B308 Stinger C HDD Optional G690 Stinger C NIB Optional B307
257. y lift motor defective e Stack height sensor defective SC735 Finisher exit guide plate motor error Definition B The exit guide plate open sensor or exit guide plate HP sensor does not activate within a certain time after the exit guide plate motor turned on Possible causes e Exit guide plate motor defective e Exit guide plate HP sensor defective e Exit guide plate open sensor defective SC 750 Interchange unit connection error Definition B The cannot communicate with the interchange unit properly when the duplex unit is installed Possible causes Poor connection between the IOB and interchange unit e OB defective SC 751 Bridge unit connection error Definition B The IOB cannot communicate with the bridge unit properly when the finisher is installed og Qs 30 22 Possible causes e Poor connection between the IOB and bridge unit OB defective 7 13 SERVICE CALL CONDITIONS 20 September 1999 5 752 Finisher connection error Definition B The IOB cannot communicate with the finisher properly when the bridge unit is installed Possible causes Poor connection between the finisher and bridge unit defective SC760 ADF gate abnormal Definition B The ADF Gate signal line between the ADF main board and the IOB is disconnected Possible Causes ADF main board defective Input output board defective Porconnection ADF Gate lin

Service Manual: Russian C1a/Russian C1b

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