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Oki 4M User's Manual

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4. OKI DATA CORP ENHANCED PCLS5 PJL EPSONFX IBMPPR HIPERWINDOWS OKI OKIPAGE Bex PRINTER OKI OKIPAGE 6ex Laserjet 4P OKIPAGE 6ex or OKIPAGE OEL Figure D 3 Option Menu moqy 195 pueumm dr i19 pmse 9Iqueduno dFdH 99 35 vdl30 140 vondusssg 29 39730 AO POR HAJLbHiHd s 1 p 9mejnue rmm sayigy 089 ISU gu 00 AUN uu cz Les nep Lin El WOME WO guy oyun uonerodio7j ee dq 9661 9 wide Z0 00 24 uosa GAAHINOA ES OEL SA so2ueuasqulep 140 Em T mp 49534144 293 9 140 OKI People to People Technology Oki Data Corporation 4 11 22 Shibaura Minato ku Tokyo 108 Japan Tel 03 5445 6162 Fax 03 5445 6189 00000000TH
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6. Adjustment LED head Set the LED head drive time Set the LED head dot count EP unit Reset the drum counter Refer to User s Manual Main control board Setting LED Head Drive Time Upload or download EEPROM data Caution When the liminous intensity of a new LED head is the same as that of the old LED head do not set the LED head drive time Use LED Head Making No in the engine menu tab of the maintenance driverto set the luminous intensity displayed on the LED head as the LED head drive time See Figure 4 2 Luminous intensity of LED head Luminous intensity display 070 314 122861 P The last three digits indicate the luminous intensity of the LED head Figure 4 2 4 2 2 Setting the LED Head Dot Count There are two types of LED head dot count Use the following label to identify these types Use LED Head Width in the engine menu table to set the LED head dot count See Figure 4 2 Identifying the types of LED head dot count 122861 Nallow 2496 dots 1104G2 Ifl MH 200081100 LUE LEER UU 0 Full Type 2560 dots Figure 4 3 4 2 3 Uploading and Downloading EEPROM Data When the main control board is replaced EEPROM data must be reflected on a new main control board Use EEPROM Operations in the option tab ofthe maintenance utility to reflect EEPROM data on the new main control board See Figure 4 4 Refl
7. OKI OKIPAGE 4w Plus 4m LED Page Printer Maintenance Manual OEL INT Approval HP LaserJet and PCL5e are trademarks of Hewlett Packard Co PREFACE This Maintenance Manual describes the field maintenance methods for LED Page Printers This manual is written for use by service persons Please note that you should refer to the Printer Handbook for the handling and operating methods of the equipment 1 CONTENTS CONFIGURATION ae 1 1 1 1 System CODICI ADEL ara 1 1 1 2 Printer Configuration 1 2 13 S oj re em 1 3 1 4 Specification MR 1 4 1 5 Safety Standards ERR 1 6 1 5 1 Certification Label aa ia 1 6 1 5 2 Warning Labot did edet ee 1 6 OPERATION DESCRIPTION ee 2 1 2 1 Man Control Board m 2 4 22 POWER SUDAN cinc einer se Sah es Eb at 2 5 2 3 High Voltage Power Supply Board 2 5 2 4 Electro Photographic Processor are 2 7 2 5 Electo Plhotogiapile Prasese ne 2 11 2 5 1 Explanation of Each Process 2 13 2 6 Paper Jam DelBCHlOfi s entere tnr ae 2 19 2 7 Toner Low DST COI nen ee 2 21 2 8 COVE pp 2 22 PARTS REPLACEMENT nn 3 1 3 1 Precautions for Parts 3 1 3 2 Parts layer 3 3 229 Replacing PANS essen ea ee 3 6 3 3 1 Hopper Plate ici ar 3 6 3 3 2 LED Head and Hea
8. Status Code Table 6 1 Cont d Display Content Remedy Paper size error Paper Size Error 30 00 Paper of improper size was fed 2 52 64 mm L 15 77 400 56 mm Check the paper Also check whether more than one sheet of paper were fed simultaneously To release the error display open the cover then close it If this error occurs frequently see Section 6 5 2 3 Paper jam Paper Input Jam A paper jam occurred when sheets of paper were being supplied Check the paper To release the error display close the cover then close it If this error occurs frequently see Section 6 5 2 2 1 Paper Feed Jam A paper jam occurred during paper feeding Open the cover then remove the jammed paper To release the error display close the cover If this error occurs fre quently see Section 6 5 2 2 2 Paper Exit Jam A paper jam occurred during paper ejection Open the cover then remove the jammed paper To release the error display close the cover If this error occurs fre quently see Section 6 5 2 2 3 Cover open Cover Open The upper cover is open To release the error display close the cover If this error occurs frequently replace the power supply board Buffer overflow Page Buffer Overflow The page buffer overflowed because there are a large number of print data To release the error display press the reset button on the status motor of the printer driver Install op
9. 3 3 10 Drive Shaft E Eject and Eject Roller 1 Dismount the upper cover assy See Section 3 3 4 Dismount top cover assy See Section 3 3 6 Remove two screws 1 from heat assy Section 3 3 9 lift the heat assy and dismount idle gear E A and idle gear E B Unlock and dismount drive shaft E Eject 4 Dismount two eject rollers 5 3 3 11 Pressure Roller B Back Up Roller 1 Dismount the upper cover assy See Section 3 3 4 2 Dismount the high voltage power supply board See Section 3 3 5 3 Dismount the heat assy See Section 3 3 9 4 Dismount the engagement with the left ground then pressure roller Two bearing BUs 2 and two bias springs 3 also come off at the same time 3 3 12 Separator Guide Dismount the upper cover assy See Section 3 3 4 Dismount the high voltage power supply board See Section 3 3 5 Remove four screws 1 Dismount inlet from base frame Dismounting inlet gt Insert a screwdriver into the hole on the side of base frame 3 remove the inlet claw from base frame 8 and dismount inlet 2 Disconnect three cables 4 and connector 1 and dismount base frame 3 Then remove screw 40 and disconnect FG cable 2 Disconnecting connector 1 Dismount connector 1 by drawing it upward while pushing the clamp lever with a standard screwdriver Dismount the paper holder assy See Section 3 3 7 Dismount two engage
10. A ddns JeMOd 031 eubis 2 5 1 Explanation of Each Process Operation 1 Hopping As shown in the figure below the clutch for hopping is turned on off according to current ON OFF to a coil When the clutch is OFF Spring for resetting Hopping gear Clutch plate Magnetic substance plate Pin Hopping shaft Hopping roller Engagement section When the clutch is ON Hopping gear Clutch plate When the clutch is on the hopping gear engages with the clutch plate to rotate the hopping roller When the clutch is off the hopping gear is separated from the clutch plate by the spring for resetting disabling the rotation of the hopping roller 2 13 2 Printing and warm up At warm u P Triple gear Transfer gear M Idle gear Planetary gear Hopping gear Pulse motor main Rotate the pulse motor main in the a direction The planetary gear rotates inthe a direction dislocating its position in the a direction This causes the planetary gearto be separated from gear A The hopping gear will not rotate The triple gear and transfer gear rotate via the idle gear to drive the EP unit Triple gear At printing Transfer gear Idle gear Planetary gear Hopping gear Pulse motor main The paper is further advanced in synchronization to the print data 3 Charging Charging is performed by applying DC voltage to t
11. Insulation Sheet B 40483802 40043001 China Option RAM Board HBRB PCB 4YA4121 2502G005 APPENDIX Appendix A LOCAL PRINTING 1 The following operation enables the OKIPAGE 4w Plus 4m to print data by itselt Operation With the cover open turn on the AC switch and then close the cover The following print patterns are printed Appendix B PARALLEL INTERFACE 1 Connector Printer side 36 pin receptacle Type 57RE 40360 730B D29A Daiichi Denshi or equivalent Cable side 36 pin plug Type 57 30360 Daiichi Denshi or equivalent 2 Cable Cable length 6 feet 1 8 m max A Shielded cable composed of twisted pair wires is recommended for noise prevention 3 Parallel I F signals Pin No Signal Name Direction Function Compatible Mode 1 DATA STROBE PR Parallel data sampling strobe 2 1 3 DATABIT 2 4 3 5 DATABIT 4 lt gt PR Printer parallel input output data 6 DATABIT 5 7 DATABIT 6 8 DATABIT 7 9 DATABIT 8 10 ACKNOWLEDGE lt Completion of input data reception 11 BUSY lt PR The OKIPAGE 4w is not ready to receive data 12 PAPER END PR Paper end detection 13 SELECT lt PR Select state Online 14 AUTOFD gt PR Carriage return control 15 Not used 16 0V Grounding for signals 17 27 Frame ground 18 5V PR 50 m
12. TROUBLESHOOTING PROCEDURES ee 6 1 6 1 Troubleshooting esse eects 6 1 6 2 Check Points Before Correcting Image Problems 6 1 6 3 Notes When Correcting Image Problems 6 1 6 4 Preparation Before Troubleshooting 6 1 6 5 Troubleshooting A 6 2 6 5 1 Status Monitor Message List pp 6 2 6 5 2 Status Message Troubleshooting pp 6 6 6 5 3 Image Troubleshooting se 6 13 WIRING DIAGRAMA 7 1 7 1 Interconnect Signal Diagram ann a cime e 7 1 7 2 030 0 a aaa M 7 3 7 2 1 Main Control Board HBMC 2 PCB OKIPAGE plus 7 3 7 2 2 Main Control Board HBMC 3 PCB OKIPAGE 7 4 7 2 8 High Voltage Power Sapply Board 7 5 PARTS LIST diia 8 1 APPENDIX A LOCAL PRINTING A 1 APPENDIX B PARALLEL INTERFACE c ccc B 1 APPENDIX C MACINTOSH C 1 APPENDIX D MAINTENANCE UTILITY eere D 1 1 CONFIGURATION CONFIGURATION System Configuration The OKIPAGE 4w Plus 4m consists of a control block a power supply unit and an engine block See Figure 1 1 ENGINE UNIT Paper Feed Mechanism Hopper Plate Electro pho
13. 1YX4083 1200G1 120V Heat Assy 1YX4083 1200G2 230V Heat Assy 40116102 For CHINA Heat Assy 40116103 For KOREA Heat Assy 40116104 For TAIWAN Stopper Spring 40034001 Caution Label TR 4PB4091 6047P1 Ferrite Core 105A1034C0002 Film Guide 4PP4083 1139P1 Figure 8 3 Heat Assy Part Name Table 8 3 Heat Assy Part No Remarks Heat Roller 3PB4083 1202P1 Halogen Lamp 3PB4083 6103P4 Halogen Lamp 3PB4083 6103P5 Thermostat 4PB4083 1204P1 Thermistor 4PB4083 1205P1 Heat Cord 4 4083 1213 1 Figure 8 4 Base Plate Unit Part Name Table 8 4 Base Plate Unit Part No Remarks Base Plate Assy 3PA4083 1135G1 Insulation Sheet 3PB4083 1251P1 Power Supply Unit 4YB4049 1853P1 120V Power Supply Unit 4YB4049 1854P1 230V Main Control Board HBMC 2 PCB 4YA4121 2516G2 For OP4W Plus Without ROM Main Control Board HBMC 3 PCB 4YA4121 2516G3 For OP4m With Mask ROM Program ROM 4YR4077 1670G1 OP4w Plus EPROM Program ROM 40406201 OP4w Plus EPROM For China Program ROM 8170649M0002 OP4m MaskROM AC Cord 3YS4011 1315P1 USA TAIWAN AC Cord 3YS4011 1266P1 Continental AC Cord 3YS4011 1270P1 U K AC Cord 40398702 Australia AC Cord
14. Label Envelope OHP paper trans parency First print 23 seconds A4 after warm up Continuous print Warm up time 4 sheets minute A4 40 seconds 120 VAC for ODA 230 VAC for OEL INT at room tempera ture 77 F 25 C Automatic paper feed or manual paper feed Face down 300 dpi x 300 dpi 600 dpi x 600 dpi quasi 230 15 14 for OEL INT 120 VAC 6 15 for Peak 450W Typical operation 100W Idle 30W Power save mode 5W 12 Temperature and humidity Temperature Humidity During operation 10 to 32 C 20 to 80 RH relative humidity In storage 10 to 43 C 10 to 90 RH relative humidity No condensation is permissible Caution Temperature and humidity in storage are measured with the OKIPAGE 4w plus 4m being packed they are valid for one year 13 Noise During operation 48 dB A or less Standby 38 dB A or less 14 Consumables Toner cartridge kit 1 000 5 duty Image drum cartridge 10 000 at continuouts printing 1 5 1 5 1 1 5 2 Safety Standards Certification Label The safety certification label is affixed to the following location of the OKIPAGE 4w OKIPAGE 4W Plus Model EN80008 230V 50 60H1 2 OKI INT 4w Plus 970072 00 Oki Doto Corporation Mode in Thollond Warning Label Warning labels are affixed to the locations that may cause bodily injury During maintenance do work with enough care while
15. and CN2 Pin 3 of the main control board Pin 2 5 V Pin 3 0 V No Replace the power supply board Y ves Replace the main control board Yves Is 1 2 V voltage supplied between CN1 Pin 2 and CN1 Pin 13 of the high voltage power supply board No Replace the main control board Y ves Replace the high voltage power supply board Y Yes Replace the main control board JAM error 2 1 Paper input jam No Y No Y No Y No Yes Yes No Yes No YNo 2 4 Y No No Does a paper input jam occur when the power supply is turned on Is the jammed paper on paper sensor E Remove the jammed paper Is paper sensor E manual feed paper operating normally Replace paper sensor E manual feed or paper Replace the high voltage power supply board Does a paper input jam occur during paper loading Yes Yes Yes Yes Yes Is the paper already fed to paper sensor E manual feed Is paper sensor E manual feed operating normally No Replace paper sensor E manual feed Check the gear block or replace high voltage power supply board Is the paper already fed to paper sensor E paper Is paper sensor E paper operating normally No Replace paper sensor E paper Replace high voltage power supply board Replace the stepping roller or friction pad Is the hopping roller rotating 4 Yes No Yes No Check the coil resis
16. dismount stopper spring 5 3 3 8 Side Plate M and Idle Gear Perform parts replacement while making the base frame assy stand so that side plate M will face upward 1 Dismount the upper cover assy See Section 3 3 4 2 Remove two screws 1 and two claws then dismount plate side 3 Dismount earth plate 3 two idle gears PG idle gear idle gear 3R idle gear 20 and idle gear heat 8 3 3 9 Heat Assy This section explains how to dismount the heat assy and parts in the assy Dismounting the heat assy gt 1 Dismount the upper cover assy See Section 3 3 4 2 Dismount the high voltage power supply board See Section 3 3 5 3 Remove two screws 1 disconnect connector 2 and dismount heat assy 3 Dismounting parts in heat assy gt 4 Dismount heat separator 42 5 Remove screw 4 and dismount terminal plate 6 Handle heat assy 3 carefully because Halogen lamp 7 comes off 6 Turn left and right heat bearings 8 in the arrow direction to unlock Then dismount Halogen lamp 7 heat bearing 8 heat roller 9 and heat gear 43 together Take care not to drop Halogen lamp 7 Dismount thermistor 0 8 Dismount the clamp then thermostat 17 heat contact 42 and heat cord 5 together 9 Dismount heat contact 12 and heat cord 5 from thermostat Caution Take care not to bend the claw when dismounting heat bearing 8
17. drum with static electricity and then returns it to the OPC drum OPC drum Cleaning roller High voltage power supply Transfer roller 2 6 Paper Jam Detection The OKIPAGE 4w Plus 4m monitors the paper status when the power supply is on and during printing In the following cases the OKIPAGE 4w Plus 4m interrupts the printing process as a paper jam Printing can be recovered by opening the cover removing the jammed paper and closing the cover Error Cause of Error Paper inlet jam Only the manual feed sensor detects Paper exists when the power supply is on The leading part of the paper does not reach the paper sensor although hopping operation was performed three time Paper feed jam Paper outlet jam The leading part of the paper does not reach the outlet sensor within a fixed time after it has passed the paper sensor The trailing part of the paper does not pass the outlet sensor within L mm after the leading part of the paper has passed the outlet sensor 2 52 64 mm lt L lt 15 77 400 6 mm Paper size error Type of Error The trailing part of the paper does not pass the paper sensor within L mm after the leading part of the paper has passed the paper sensor 2 52 64 mm lt L lt 15 77 400 6 mm Supervisory Sensor Reference Value Paper feed error Electromagnetic clutch ON Paper sensor ON Paper feed Paper size error Paper sens
18. engine menu settings Engine Counter Used to display and initialize the engine counter e Printer Status Used to display the printer status Test Print Used to execute test printing Option Special function About Used to display engine maintenance utility information and printer information Reload Used to reload menu setting values 4 1 4 2 DETAIL OF EACH FUNCTION Engine Menu Setting Engine Menu Setting is used to set display and change the following menu items See Figure D 1 1 Print Position Used to adjust the print start position 2 LED Head Marking No Used to adjust the exposure time of the LED head 3 LED Head Width Used to specify the LED head dot count 4 LED Head Wire Used to specify whether data wire of the LED head is 300 1W one wire non adjustment type or 300 2W two wire adjustment type This printer however can use only one wire type Do not use D600WA 5b Setting or Humidity Used to adjust transfer current 6 Head Type Do not use in this printer 7 Wait Table Do not use in this printer 8 Page Prt Do not use in this printer 9 Entry Used to reflect the engine menu setting values on the printer 10 Cancel Used to clear unreflected items Items for which Entry is not specified Engine Counter Engine Counter is used to display and initialize the following count values See Figure C 1 4 3 4 4 4 5 1 Drum Count Number of rev
19. following instructions on these warning labels Eireugegetanr For OEL CAUTION HOT ATTNTION CHAUDE VORSICHT HEIB ATENCION ALTA TEMPERATURA For OEL OKI INT ATENGAO ALTA TEMPERATURA SE For Korea IN CAUTION HOT For China TAIWAN 2 OPERATION DESCRIPTION OPERATION DESCRIPTION The OKIPAGE 4w Plus 4m consists of a main control board a high voltage power supply board a power supply unit and an electro photographic processor The OKIPAGE 4w Plus 4m receives print data from a higher level interface and sequentially stores itin memory The OKIPAGE 4w Plus 4m decodes and edits the received data while storing print data from the interface in memory It sequentially transfers the edited data to the LED head for each dot line The electro photographic processor then prints the data on sheets of paper The display of the higher level host is used for device operation and status display Figure 2 1 is the block diagram of the OKIPAGE 4w Plus 4m SNid Mp 39 VdIMO wesbeig 49019 1 2 quf Alddng samog gt op A OEZ A 021 A ddns samod oo lt
20. guide L 4 and paper guide 5 on the rear of the printer to the center Remove two front claws of upper cover assy 6 and two rear screws 17 and lift upper cover assy 6 Dismount spur gear A 2 guide slide L 8 and guide slide R 9 Dismount lamp 9 3 3 5 High Voltage Power Supply Board Dismount upper cover assy See Section 3 3 4 Remove three screws 1 and draw out high voltage power supply board 2 Disconnect all the cables 3 from high voltage power supply board 2 and dismount high voltage power supply board 2 Caution Note the following when assembling the high voltage power supply board Mount the high voltage power supply board with top cover assy removed or open Take care that cable 3 will not interfere with the paper sensor exit when it is connected 3 3 6 Cover Assy and Flat Cable Assy Dismount the upper cover assy See Section 3 3 4 Dismount the LED head See Section 3 3 2 Press the left clamp outward and dismount the engagement and top cover assy 1 Tension spring 2 also comes off at the same time Disconnect connector CN6 and dismount flat cable assy 3 connector CN6 3 3 7 Paper Holder 1 Dismount the upper cover assy See Section 3 3 4 2 Dismount paper holder 1 3 Unlock and dismount paper guide L 2 and paper guide 3 4 Remove the claw and dismount hopper spring 4 b Remove the claw and
21. sensor does not change over two cycles T x 2 the toner sensor alarm state occurs After the EP unit has been replaced after the drum counter has been reset Toner Low is not detected when the drum counter indicates 1 to 100 counts 2 The basic rotation cycle of the toner sensor is as follows T time Basic rotation cycle of toner sensor 4 9 sec Toner low time t1 1 2 sec Toner full time 1 2 sec t1 0 28 sec 2 8 Cover Open Opening the stacker cover turns off the microswitch on the high voltage power supply board to suspend 5 V supply to the high voltage power supply This results in the stop of all high voltage outputs At the same time the CVOPN signal is issued to notify the main control board of the Switch status and cover open processing is executed 3 PARTS REPLACEMENT 3 1 Dismounting gt PARTS REPLACEMENT This chapter explains how to replace parts assemblies and units in the field The replacement procedures to be explained here include dismounting not mounting When mounting parts assemblies and units reverse the dismounting steps Precautions for Parts Replacement 1 Be sure to dismount the AC cord and interface cable before replacing parts a Be sure to dismount the AC cord in the following procedures i off the POWER switch of the printer 0 ii Disconnect the AC inlet plug of the AC cord from the AC receptacle iii Disconnect the AC cord and int
22. to the negative charge of a toner is applied from the reverse side by the transfer roller When a high negative voltage is applied from the power supply to the transfer roller the positive charge induced on the surface of the transfer roller moves to the paper side at the contact part between the transfer roller and the sheet of paper The positive charge on the lower side of the sheet of paper then causes the negatively charged toner adhering to the surface of the OPC drum to move to the upper side of the sheet This enables transfer to the sheet of paper OPC drum High voltage power supply Transfer roller 7 Fusing The transferred unfused toner image is fused to a sheet of paper because heat and pressure are applied when it passes between the heat roller and back up roller The Teflon coated heat roller contains a 400 W heater Halogen lamp that heats the heat roller The thermistor on the surface of the heat roller keeps the temperature of the heat roller constant A thermostat is also installed for safety If temperature rises abnormally this thermostat opens to suspend voltage supply to the heater The back up roller is pressurized to the heat roller by the pressure spring on each side Thermistor Separation claw Heat roller Heater Back up roller Pressure spring 8 Cleaning After transfer has terminated the cleaning roller temporarily draws in the untransferred residual toner adhering to the OPC
23. 3 6 5 1 Status Monitor Message List Table 6 1 lists the statuses and troubles to be displayed on the status monitor in the message format Category Status Message Status Code Table 6 1 Display Content Normal status Warming Up 18 00 Warming up status Normal operation Online Ready 00 10 Online ready status Normal operation Power Save Mode 00 20 Power save status Normal operation Toner Low 10 00 The toner amount of the toner cartridge is small Normal operation Toner Sensor 10 01 The EP unit is not installed or the toner sensor is faulty Replace the toner cartridge Change Drum 10 02 Life of EP drum Install the EP unit or replace the toner sensor Manual Paper In 12 20 The paper is in the manual feed mode Replace the EP unit Note Be sure to reset the drum counter after replacing the EP unit Printing In Progress Printing in progress Normal operation Ejection In Progress Ejection in progress Normal operation Manual Request Executive Letter Legal 14 Legal 13 A6 5 4 5 Monarch COM 10 DL C5 COM 9 Request the paper to be set in the manual feed mode The paper sizes are as follows Executive Letter Legal 14 Legal 13 A4 A5 A6 B5 Monarch DL C5 COM 10 COM 9 Set the requested paper in the manual feed mode Category Status Message
24. 83 1181P1 Earth Plate A 3PP4083 1189P1 Side Plate M 3PP4083 1188P1 dle Gear P 3PP4083 1182P1 dle Gear 3R 3PP4083 1183P1 Tension Plate 4PP4083 1165P1 dle Gear Heat 3PP4083 1185P1 dle Gear E A 4PP4083 1186P1 dle Gear E B 3PP4083 1187P1 Drive Shaft E Eject 3PP4083 1170P1 Eject Roller 40074601 Resist Bearing 3PP4083 1141P1 Resist Roller Resist Roller 3PB4083 1140P1 40457001 For China Tension Spring 4PP4083 1252P1 Gear T 3PP4083 1151P1 Part Name Part No Remarks Transfer Roller 3YB4083 1150P1 Transfer Roller 40456901 For China Bias Spring L Back Up Roller 4PP4083 1136P1 Bearing BU Back Up Roller 3PP4083 1161P1 Pressure Roller B Back Up Roller Paper Guide R 3PB4083 1160P2 40249501 Paper Guide L 40249401 Paper Holder 1PP4083 1231P1 Paper Sensor Exit 3PP4083 1192P1 Hopper Spring 4PP4083 1247P1 Top Cover Assy 40271102 For OEL OKI INT CHINA TAIWAN OKIPAGE 4W plus Top Cover Assy 40271104 For KOREA OKIPAGE 4W plus Top Cover Assy 40271106 For OEL OKIPAGE 4m Head Spring 4PP4083 6168P1 LED Head 4YA4116 1228G1 Flat Cable Assy 4YX4083 1134G1 Bias Spring R Back Up Roller 4PP4083 1137P1 Sheet Guide 1PP4083 1241P1 Heat Assy
25. A max 19 OV Grounding for signals 30 31 INPUT PRIME PR Initialization signal 32 FAULT lt PR Paper end or alarm 33 0V Grounding for signals 34 Not used 35 High level 3 3 36 SELIN PR Data input enable or disable 4 Signal level LOW 0 Vto 0 8 V e HIGH 2 4 V to 5 0 V 5 Interface circuit a Receiving circuit R 3 3KQ 1 0 KQ STROBE 5V b Sending circuit Open Collector ako P 5V 6 Timing charts a Data receiving timing compatible mode PARALLEL DATA DATA BITs 1 to 8 0 5 us min 0 5 us min 0 5 us min DATA STROBE 0 5 us min la 0 5 us max BUSY ACKNOWLEDGE 0 5 us to 10 uis He 0 min b INPUT PRIME timing when the INPUT PRIME signal is enabled 50 ms min INPUT PRIME BUSY SELECT 5 us max 0 min ACKNOWLEDGE 5 us 0 5 us to 10 ms c Data sending timing nibble mode ACKNOWLEDGE BUSY PAPER END LLLA DNAS A DATA AA DAD ULL DATA bit 4 DATA bi t 1 DATA bit 5 DATA b it2 DATA bit 6 AppendixC Macintosh INTERFACE OKIPAGE 4m 1 Connector Printer side 8 pin mini DIN receptacle Type TCS7187 01 201 made by HOSHIDEN or equivalent Cable side 8 pin mini DIN plug Type TCP7180 01 110 made by HOSHIDEN or equivalent 2 Cable Apple system peripheral 8 cable M0197 LL B made by Apple 3 Interface signal Sig
26. DRAM an EEPROM a host interface circuit and a mechanism driving circuit The mechanism driving circuit consists of a LED head a main motor and an electromagnetic clutch 1 One chip CPU The one chip CPU is a custom CPU 8 bit internal bus 8 bit external bus 10 MHz clock incorporating mask ROM and CPU peripheral devices This CPU has the functions listed in the table below Built in Device Function DRAM controller Controls DRAM DMA controller Transfers image data from Parallel I F to DRAM from DRAM to a video output port and between CPU and DRAM Parallel interface controller Controls the parallel interface Video output port Controls LED head LED STB output port Timer Generates various control timings for monitoring paper feeding and a paper size port Inputs and outputs the sensor signals and motor signals etc Also performs I O for EEPROM A D converter Inputs the feedback signals from a high voltage generation circuit and thermistor signal 2 Program ROM Program ROM contains a program for the equipment EPROM is used as program ROM When mask ROM in the one chip CPU explained in 1 above is valid the EPROM is not mounted For details on short wiring setting see Section 7 2 DRAM DRAM is used as resident memory EEPROM EEPROM holds the following data Menu data Counter value Adjustment value Parallel interface The parallel interface receives par
27. allel data from the host it conforms to the IEEE1284 specification Macintosh interface only OKIPAGE 4m Mcintosh interfacce receives serial data from the host it conforms to the IEEE1284 2 2 2 3 Power Supply Unit The power supply unit supplies 5 V and 24 V to the main control board according to 230 120 VAC Output voltage Application 5V Used to generate a logic circuit and a high voltage 24 V Used to drive the motor and electromagnetic clutch The power supply unit also contains a heater drive circuit High Voltage Power Supply Board 1 High Voltage power supply circuit The high voltage power supply circuit generates the following voltages required for the electro photographic processor from 5 V according to the control sequence from the main control board When the cover is open 5 V supply is automatically interrupted to stop high voltage output Output Voltage Application CH 1 35 KV 300 V 300 V tage to be applied to a developing roller tage to be applied to a charge roller 450 V 0 V tage to be applied to a sponge roller 400 V tage to be applied to a cleaning roller 500 V 3 5 KV 750 V tage to be applied to a transfer roller Caution The TR voltage varies with medium and transfer roller impedance 2 Sensors The high voltage power supply board consists of the high voltage power supply circuit that supplie
28. arks IB Maintenance utility Base Frame Unit Flat cable assy Head spring Top cover assy Pressure roller B Back up roller Paper guide R Paper guide L Transfer roller Hopper NS spring 4 E a EN Tension gt plate XA Lo d shaft MagnetH assy v 22 hopping shaft lt Roller holder 2 3 A i AN Toner iN p pra a High voltage power a 2 Pulse motor vdd 222 supply board main p u SA Power sensor E Sheet guide EP unit Figure 3 2 pod Hopping Base Plate Unit Figure 3 3 Replacing Parts 3 3 This section explains how to replace parts and assemblies Hopper Plate 3 3 1 1 Remove two claws and dismount hopper plate 1 LED Head and Head Spring 3 3 2 1 Open top cover assy 1 2 Dismount the left clamp and LED head 2 Then dismount flat cable assy 3 3 Dismount two head springs 4 LS ALTA E 72 3 3 8 Transfer Roller 1 Open top cover assy 1 and dismount EP unit 2 2 Remove the right claw Then dismount transfer roller 3 two resist bearings 4 and gear TO 3 3 4 Upper Cover Assy Turn off the power switch and unplug the AC cord from the AC socket Disconnect interface cable 1 Open top cover assy 2 and dismount EP unit 3 Move paper
29. as the following functions Drum counter reset Charge roller cleaning OKI OKIPAGE Plus Status Monitor sleeping 19 25 Drum Count When replacing drum cartridge clear drum count Figure 4 1 1 Drum counter reset This function resets the life of the drum counter when the EP unit is replaced Clicking the clear button resets the life 2 Charge roller cleaning This function cleans the charge roller of the EP unit it is used when printing is unclear For details on how to operate this function refer to User s Manual For Macintosh only OKIPAGE4m gt 8137 from Driver rsrc en 10 0 Print Option save Cancel Printer Memory NEN LT Density Default image Enhancement Power Saue 1222201 A Position Adjust e Y Position Adjust Cleaning Print Drum Count Reset 1 Drum counter reset This function resets the life of the drum counter when the EP unit is replaced Clicking the Reset button resets the life 2 Charge roller cleaning This function cleans the charge roller of the EP unit itis used when printing is unclear For details on how to operate this function refer to User s Manual 4 2 Engine Maintenance Utility See Appendix D Adjustment When Replacing a Part The table below lists the parts that requires adjustment when they are replaced Part to be Replaced
30. contact with the contact plate See Figure 6 5 No Contact the terminal correctly Y ves Replace the LED head Has this error been recovered Yes End Caution Setthe LED head drive time when replacing the LED head See Section 4 2 1 Y No Replace the main control board or high voltage power supply board Vertical black belt stripe Replace the EP unit 1 Has this error been recovered Yes End Caution After replacing the EP unit reset the drum counter Refer to Replacing the Drum Cartridge in User s Manual YNo Replace the LED head Has this error been recovered Yes End Caution Setthe LED head drive time when replacing the LED head See Section 4 2 1 Replace the main control board or high voltage power supply board Cyclic defect Remedy EP drum Clean or replace the EP unit Developing roller Replace the EP unit Toner supply roller Replace the EP unit Charge roller Replace the EP unit Cleaning roller Replace the EP unit Transfer roller Replace the EP unit Heat roller Replace the heat roller Pressure roller B Replace pressure roller B Caution After replacing the EP unit reset the drum counter Refer to Replacing the Drum Cartridge in User s Manual 6 16 8 A blank paper is output Is the contact plate of the transfer roller in correct contact with the high voltage powe
31. d Spring pp 3 7 3 3 3 Transfer Roll een 3 8 3 3 4 Upper Cover ASSy Nt 3 9 3 3 5 High Voltage Power Supply 3 10 3 3 6 Top Cover Assy and Flat Cable 3 11 3 3 7 Paper Holder cisci e 3 12 3 3 8 Side Plate M and Idle Gear pp 3 13 3 3 9 Heat cte 3 14 3 3 10 Drive Shaft E Eject and Eject Roller pp 3 17 3 3 11 Pressure Roller B Back Up Roller 3 18 3 3 12 Separator 2 2 2 00 2 1 0 00000 0000000 3 19 3 313 Pulse Motor Mall sois 3 21 3 3 14 Hopping Shaft 3 22 3 315 Resist ROIG iicet ret terret an De Ee 3 23 3 3 16 Paper Sensor E Paper Sensor Exit and Toner Sensor Assy 3 24 3 3 17 BasePl t iii 3 25 ADJUSTMENT eee 4 1 4 1 Adjustment Types and Functions pp 4 1 4 1 1 Printer 4 1 4 1 2 Engine Maintenance Utility cesses 4 3 4 2 Adjustment When Replacing a Part pp 4 3 4 2 1 Setting LED Head Drive Time pp 4 3 4 2 2 Setting the LED Head Dot Count sss 4 4 4 2 3 Uploading and Downloading EEPROM Data 4 5 PERIODICAL MAINTENANCE ee 5 1 5 1 Periodical Replacement Parts a 5 1 52 CI Eo eL 5 1 5 2 1 Cleaning of LED Lens 5 1
32. data from the main control board for each dot line 2 560 or 2 496 LEDs are driven to radiate the image drum Heat Assy The heat Assy consists of a heater a heat roller a thermistor and a thermostat The power supply unit supplies AC voltage to the heater according to the HEATON signal from the main control board to heat the heat roller The main control board monitors the heat roller temperature via the thermistor and keeps the temperature constant by turning on off the heater AC voltage supply If the heat roller temperature rises abnormally the thermostat of the heater voltage supply circuit functions to forcibly suspend the AC voltage supply leded up snid by359vdIyO Jo Buimeig ain6ld uo 51 si y 6ulddoH 19 01 Buiddoy pao UXO 19101 Jeay Duidoje ep HO 58llol 19 joJ 191 01 WMG esind jo 58llol Jeay 49101 9 01 HD 18110 5ellol WING JOJOW asind jo uolelolleuuoN D esjnd Aq JajoH 1 Jellol 191101 JoJSUe Josuas Jos
33. ect EEPROM data on the new main control board in the following procedures 1 Check that the printer and PC are connected by the parallel I F then execute the maintenance utility 2 Click the Option button in Main Menu Dialog 3 Click the Upload button Upload EEPROM Data in EEPROM Operations EEPROM data read is completed 4 The read EEPROM data is displayed in Dialog of the maintenance driver 5 Leave the display of the maintenance driver as is and replace the main control board 6 Clickthe Download button Download EEPROM Data in EEPROM Operations EEPROM data write is completed Depending on the level of a main control board failure parallel I O failure etc however EEPROM data may be unable to be uploaded In such acase use the maintenance utility to perform the following adjustment after replacing the main control board Setting the LED head drive time Section 4 2 1 Setting the LED head dot count Section 4 2 2 Setting specifications ODA OEL INT A INT L 5 PERIODICAL MAINTENANCE 5 1 PERIODICAL MAINTENANCE Periodical Replacement Parts Table 5 1 lists the part and unit to be replaced periodically Table 5 1 Routine Replacement Parts Part to be Checked Simultaneously Remarks Part Name Replacement Time Toner cartridge When Toner Low is displayed LED head Consumables 5 2 5 2 1 Caution Also reset the drum counter when replacing the EP unit Clean
34. ed Content SW1 1 UPPER SIDE AUTO LOWER SIDE FIX VF By SW2 2 SW1 2 UPPER SIDE FIX PARALLEL LOWER SIDE FIX MAC Default setting Do not change 7 2 3 High Voltage Power Supply Board 8 PARTSLIST Table 8 1 Cover Assy Upper Part Name Part No Remarks Upper Cover 1PP4128 1251P1 Lamp 3PP4128 1255P1 Guide Slide L 2PP4128 1256P1 Guide Slide R 2PP4128 1257P1 Spur Gear A 4PP4128 1260P1 Hopper Plate 40249301 Figure 8 2 Base Frame Unit Table 8 2 Base Frame Unit Part Name Part Remarks Base Frame Assy 2PP4083 1502G1 High Voltage Power Supply Board 4YA4130 1024G1 Paper Sensor E 3PP4083 1191P1 Friction Pad Separator Guide 4PB4083 1245P1 3PP4083 1244P1 Compression Spring S 4PP4083 1246P1 Toner Sensor Assy 3PA4083 1193G1 Pulse Motor 4PB4083 1172P1 Ep Unit Consumable o o o SsJ o oa 2J o m Toner Cartridge Unit Consumable r Hopping Roller 4PB4083 1129P1 Roller Holder Hopping Roller 3PP4083 1128P1 CD Magnet H Hopping Shaft 3PB4083 1127P1 gt Hopping Shaft Assy 3PA4083 1133G1 Cn Knock Pin NK2 10 SUS k Idle Gear R 4PP4083 1143P1 N Idle Gear 2R Gear R 3PP4083 1184P1 3PP4083 1142P1 Idle Gear M 3PP40
35. ema 0400 o o ES I Mm o 9 B amma 91 5 Slo o 255 S O s 6 o 22 OS 2 m nw 01 18 O O 155 e A peog jddng E o E 05 5 ES o EE nsa 2 O ellod z lo IT Wal Er o 3 E 87 5 Jellod JoMOd o O anma 7 Jo 8 9 95 uni 8 6 600 o i 0240 oy feyo eDeyoA uBi fama o 5 jo oj SIN n NG ol 5 8 lo o LE eXEoInv 8 oo E ec d 8 Ld c AM 5 o 2805 2 o OF ew t NSNSENI 12 OH NEXOV c AS 2g aan z 8 O viva 2 o Nidos amp Q o o B szvivad 8 ES 2 1 d 9N1YOd o 5 9 S N o E testi oo EE a el t N8IS 2 0 9 5050694695 95 8G 9 0 7 1 7 2 7 2 1 PCB Layout Main Control Board HBMC 2 PCB OKIPAGE 4w Plus Short Plug Plug Setting Content Remarks SP1 A External EPROM is valid For a Chinese product and all maintenance parts B Mask ROM in the CPU is valid For all products except Chinese product 7 2 7 2 2 PCB Layout Main Control Board HBMC 3 PCB OKIPAGE 4m Short Plag Plag Setting Content Remarks SP1 DIP Switch A External EPROM is valid B Switch Setting Mask ROM in the CPU is valid not us
36. erface cable from the printer b Be sure to reconnect the printer in the following procedures i Connect the AC cord and interface cable to the printer ii Connect the AC inlet plug to the AC receptacle iii Turn on the POWER switch of the printer OFF gt gt 4 p k e ON Reconnection 2 Do not disassemble parts as long as the printer is operating normally 3 Minimize disassembling Only the parts indicated in the parts replacement procedures can be dismounted 4 Use only the specified maintenance tools 5 Disassemble parts in the specified sequence otherwise parts may be damaged 6 Temporarily tighten small parts such as screws and collars to the original locations because they tend to be lost easily 7 When handling ICs such as CPUs ROM and RAM and PC boards do not wear gloves that easily cause static electricity 8 Do not place PC boards directly on devices and floors Maintenance Tools Table 3 1 lists the maintenance tools necessary for parts replacement Table 3 1 Maintenance Tools Maintenance Tools Use Remarks No 1 100 Phili q 2 2 5 mm screw screwdriver 2 100 Phili rew screwdriver 3 5 mm scre No 3 100 Phili screwdriver No 5 200 screwdriver Digital multimeter tester Pliers Handy cleaner Table 3 2 Maintenance Utility Maintenance Utility Rem
37. he charge roller that is in contact with the surface of the OPC drum High voltage power supply Charge roller OPC drum 4 Exposure Light emitted from the LED head irradiates the negatively charged surface of the OPC drum The surface potential of the irradiated surface attenuates to form the electrostatic latent image corresponding to the image signal LED head LED head Charge roller High voltage power supp OPC drum OPC drum Paper S Development The electrostatic latent image on the surface of the OPC drum is changed to a visible toner image by applying a toner to it Development is performed in the contact part between the OPC drum and developing roller D The sponge roller negatively charges a toner and applies it to the developing roller Developing blade Charge roller Sponge roller Developing roller OPC drum The toner applied to the developing roller is thin coated by the developing blade 3 Atoner adheres to the exposure part of the OPC drum in the contact part between the OPC drum and developing roller This causes the electrostatic latent image to be changed to a visible image 6 Transfer The transfer roller is composed of conductive sponge material This roller is set so that the surface of the OPC drum and sheets of paper will adhere closely A sheet of paper is placed on the surface of the OPC drum and the positive charge opposite
38. heater Assy Thermister Short Check Error A thermistor short occurred Replace the thermistor of the heater Assy Watch Dog Timeout Error A watchdog timeout occurred To release the error display turn on the power supply again Replace the main control board 6 5 2 Status Message Troubleshooting Some failures cannot be corrected according to the status message trouble list Troubleshoot these failures according to the following troubleshooting flowcharts Item Flowchart No The OKIPAGE 4w Plus 4m malfunctions after the power supply has been turned on D Jam error Paper input jam Paper feed jam Paper exit jam Paper size error 1 Q2 Fusing error Caution When replacing the main control board troubleshooted according to the troubleshoot ing flowcharts also adjust EEPROM data See Section 4 2 4 D The OKIPAGE 4w Plus 4m malfunctions after the power supply has been turned on Turn the power supply off then on again t Is the LED lamp on Is the AC cable connected correctly No Connect the AC cable correctly Yves Is 5 V supplied between CN1 Pin 7 and CN1 Pin 13 of the high voltage power supply board Pin 7 45 V Pin 13 0 V Arethe CN1 connectors of the high voltage power supply board and main control board connected correctly No Connect the CN1 connectors correctly Yves Is 5 V supplied between CN2 Pin 2
39. in correct contact with the high voltage power supply board See Figure 6 4 Yes Is the terminal of the EP unit in correct contact with the contact plate See Figure 6 4 A and B No Contact the terminal correctly Yes Replace the transfer roller Has this error been recovered Yes End No Replace the EP unit Has this error been recovered Yes End Caution After replacing the EP unit reset the drum counter Refer to Replacing the Drum Cartridge in User s Manual Y No Replace the main control board or high voltage power supply board Dark background density Has the OPC drum being exposed to external light Yes Set the OPC drum in the OKIPAGE 4w Plus 4m and wait for about 30 min utes Y No Is the heat roller of the heat assy dirty Yes Clean the heat roller Y No Is the terminal of the EP unit in correct contact with the contact plate See Figure 6 4 D and Figure 6 5 D No Contact the terminal correctly Y ves Replace the EP unit Has this error been recovered Yes End Caution After replacing the EP unit reset the drum counter Refer to Replacing the Drum Cartridge in User s Manual YNo Replace the main control board or high voltage power supply board A blank paper is output Is the LED head connected correctly Check the CN6 connector of the main control board No Connect the LED head correctly Y Yes Is the terminal of the EP unit in correct
40. ing Remove any toner or dirt and clean the circumference and inside ofthe printer with a waste cloth Caution Do not touch the OPC drum LED lens array and connector block of the LED head Cleaning the LED Lens Array When a white belt or a white stripe void light printing occurs in the vertical direction of the print surface clean the LED lens array or replace the toner cartridge Caution Be sure to use an LED head cleaner to clean the LED lens array White belt or stripe void light printing Figure 5 1 1 Setthe LED head cleaner in the LED lens array as shown in the figure below and slide the cleaner left and right several time to clean the head Caution Do not press the LED head cleaner against the LED lens array LED lens array Figure 5 2 6 TROUBLESHOOTING PROCEDURES 6 1 6 2 6 3 6 4 TROUBLESHOOTING PROCEDURES Troubleshooting Tips 1 Check the basic check points written in the user s manual 2 Gather detailed failure information as much as possible from the customer 3 Check the printer under the condition close to that under which the failure occurred Check Points Before Correcting Image Problems 1 Is the printer running in proper ambient conditions 2 Are consumables toner and EP unit replaced correctly 3 Are sheets of paper normal 4 Is the EP unit set correctly Notes When Correcting Image Problems 1 Do not touch the surface of the OPC drum nor place foreign ma
41. jammed paper on the paper sensor exit Yes Remove the jammed paper Is the paper sensor exit operating normally No Replace the paper sensor exit Y Yes Replace the high voltage power supply board No Check the gear block or replace the eject roller Paper size error Is the paper of the specified size being use No Use paper of the specified size Y Yes Is paper sensor E paper operating normally No Replace paper sensor E paper or clean the inlet sensor on the high voltage power supply board Y Yes Is the paper sensor exit operating normally No Replace the paper sensor exit or clean the outlet sensor on the high voltage power supply board Y ves Replace the high voltage power supply board Exit roller Paper sensor exit Heat roller Transfer roller Feed roller Paper sensor E paper Hopping roller Paper sensor E manual feed Paper feeding direction 4 Heat assy error Turn the power supply off then on again y Does the Halogen lamp of the heat assy go on No Is the Halogen lamp or thermostat disconnected Yes Replace the heat assy Halogen lamp or thermostat No Replace the power supply unit Yves Are the CN2 connec
42. ments and sheet guide 5 Dismount friction pad 6 compression spring S and separator guide 8 Dismount paper sensor Dismounting Inlet Screw driver r Disconnecting Connector Clamp lever 20 3 3 13 Pulse Motor Main 1 Dismount the upper cover assy See Section 3 3 4 2 Dismount the high voltage power supply board See Section 3 3 5 3 Dismount side plate M See Section 3 3 8 4 Dismount the base frame See Section 3 3 12 5 Remove two screws 1 and dismount pulse motor main 2 3 3 14 Hopping Shaft Assy Dismount the upper cover assy See Section 3 3 4 Dismount the high voltage power supply board See Section 3 3 5 Dismount the base frame See Section 3 3 12 Dismount the paper holder assy See Section 3 3 7 Dismount the sheet guide See Section 3 3 12 Dismount side plate M See Section 3 3 8 Raise up roller holder 3 slide hopping shaft assy D and dismount roller holder 3 and hopping roller 4 Knock pin 5 also comes off at the same time Take care not to lose it Draw out hopping shaft assy 1 to the right and dismount magnet 6 3 3 15 Resist Roller Dismount the upper cover assy See Section 3 3 4 Dismount Idle gear R 3 and Gear R 4 Move resist roller 1 to the right and dismount it by lifting Two resist bearings 2 also come off at the same time Take care
43. nal Name Abbreviation Signal Direction Description XCLOCK XCLK lt PR Transfer clk Transmit data minus Transmit data minus polarity Signal ground Signal ground Receive data minus Receive data minus polarity Transmit data plus Transmit data plus polarity Not used Receive data plus Receive data plus polarity 4 Timing chart and level about 1 2 uS EEE 5 XCLK 5v TXD Ov 5v 5v RXD ff 1047772 RXD 5 Connector Pin Arrangement As viewed from the cable side Appendix MAINTENANCE UTILITY 1 OUTLINE OF MAINTENANCE UTILITY The maintenance utility is an application program that operates on Microsoft Windows 3 1 or higher The maintenance utility has the following functions e Transmission of menu setting command to initialize and change setting values e Printer RAM check Test printing e Printer information display Printer EEPROM read write ROLE OF MAINTENANCE UTILITY The maintenance utility is a collection of command send receive functions to realize the printer maintenance functions For this reason only servicemen and maintenance personnel can use the maintenance utility This utility cannot be made public for printer end users OUTLINE OF MAINTENANCE UTILITY FUNCTIONS The maintenance utility is classified into the following functional units and displayed Engine Menu Setting Used to display and change
44. not to lose them 3 3 16 Paper Sensor E Paper Sensor Exit and Toner Sensor Assy 1 Dismount the upper cover assy See Section 3 3 4 2 Dismount the high voltage power supply board See Section 3 3 5 3 Dismount the base frame See Section 3 3 12 4 Dismount the paper holder assy See Section 3 3 7 5 Dismount the sheet guide See Section 3 3 12 6 Dismount the heat assy See Section 3 3 9 7 Dismount drive shaft E See Section 3 3 10 8 Dismount paper sensor EQ 9 Dismount paper sensor exit 2 10 Dismount toner sensor assy 3 3 3 17 Base Plate 1 Dismount the upper cover assy See Section 3 3 4 2 Dismount the base frame See Section 3 3 12 3 Remove two screws 1 disconnect connector 2 and dismount power supply unit 3 4 Dismount insulation sheet 4 5 Remove two screws 5 and dismount main control board 6 from base plate 7 4 ADJUSTMENT 4 ADJUSTMENT This chapter explains adjustment necessary when a part is replaced This adjustment is made by changing the parameters values set in EEPROM on the main control board The printer driver or maintenance utility can be used to change these values Only servicemen and maintenance personnel can use the maintenance utility This utility cannot be made public for printer end users 4 1 A Adjustment Types and Functions 4 1 1 Printer Driver For Microsoft Windows This printer driver h
45. olutions of mounted EP drum 2 Total Drum Count Total number of revolutions of EP drum after shipment 3 Page Count Total number of printed pages after shipment clicking the Reset button cleans each counter 4 Reset All Used to clear all counters Printer Status Printer Status is used to display the printer status See Figure D 1 Test Print Test Print is used to check whether the printer can print data normally after the maintenance utility has terminated See Figure D 2 Option Option is used to execute the following functions See Figure D 3 1 Printer Engine Reset Used to initialize the engine menu and counter 2 EEPROM Upload Used to upload EEPROM contents to the file 3 EEPROM Download Used to download data from the file to EEPROM 4 Printer RAM Check Used to check printer RAM 5b Printer Name Set Used to set a printer name OKIPAGE 4w or OKIPAGE 4w plus 6 User Used to set a destination default ODA OEL INTL INTA See Figure D 3 4 6 4 7 4 8 About About is used to display the following information Engine maintenance utility version information Printer version information and memory size information Printer device ID information See figure D 4 Reload Reload is used to reload menu setting values Exit Clicking the Exit button terminates the maintenance utility Engine Maintenance Driver GUI Oki Page Printer Engine Maintenance Figure D 2 Test Print Dialog
46. or ON Outlet sensor ON Paper sensor ON Paper sensor OF 2 52 64 mm 5 L lt 15 77 400 56 mm Paper outlet jam Outlet sensor ON Outlet sensor OFF 2 52 64 mm lt 15 15 77 400 56 mm Paper feed jam 2 Paper end sensor OFF Outlet sensor OFF 121 9 Unit mm Normal rotation Pulse motor OFF main Reverse rotation Electromagnetic OFF clutch ON Manual feed OFF sensor ON OFF Paper sensor ON OFF Outlet sensor ON Operation mode Warm up Paper feed Printing Timing Chart for Paper Feed Tray Feed Paper Feed Check List 2 7 Toner Low Detection Hardware configuration of toner sensor The figure below shows the hardware configuration of the toner sensor Image drum unit Agitation bar iron Magnet Toner sensor lever Photointerrupter Hardware Configuration of Toner Sensor Toner detection method 1 Toner sensor monitoring conditions are shown in the figure below Toner sensor Magnet draw in ti Caution The toner sensor is not monitored when the drum is inactive b When thetoner low state continues twice Toner Low occurs This stateis monitored at a cycle of 40 milliseconds When the toner full state continues twice Toner Low is released This state is monitored at a cycle of 40 milliseconds When the toner
47. ositive charge and is transferred onto the paper This results in the transfer of the toner image formed on the image drum onto the paper Cleaning The cleaning roller temporarily attracts the residual toner on the transferred OPC drum with static electricity then returns the toner to the OPC drum Fusing The transferred unfused toner image is fused to a sheet of paper by applying heat and pressure to the image Figure 2 5 is a flow for the electro photographic process jedeg gt uolelol ump OJO gt 2913 10 S Z 4 2 12 gt La ral 1edeq paa Jadeg jueuidojo eq J8JSUEJ Buisny uooefe eded Josuas paa 191104 A ddns 191101 BurddoH 2910 dn yoeg 1910 H Uonoes y paa Josuas Jedeg 1 Aiddns Y Joded gt 4 T 10sues eDpuyeo 18 01 19 1041 1000 LZ 6ulueel9 1 pala Ajddns jddns JOMOd alnsodxy 291101 sade
48. r supply board No Contact the contact plate of the transfer roller correctly Y ves Replace the transfer roller Has this error been recovered Yes End Y No Is the terminal of the EP unit in correct contact with the contact plate See Figure 6 4 D and Figure 6 5 D No Contact the terminal of the EP unit correctly Y ves Replace the EP unit Has this error been recovered Yes End Caution After replacing the EP unit reset he drum counter Refer to Rplacing the Drum Cartridge in Users Manual Y No Is the LED head installed correctly Check the CN6 connector the main control board No Contact the LED head correctly Yves Replace the LED head Has this error been recovered Yes End Caution Setthe LED head drive time when replacing the LED head See Section 4 2 1 Y No Replace the main control board or high voltage power supply board Poor fusing Is the specified paper being used No Use the specified paper xerox 4200 20 Ibs Y ves Is the bias spring normal Tension 2 5 kg No Replace the bias spring Y ves Are the heater connector of the heat assy and the CN1 connector of the power supply unit connected correctly No Connect the connectors correctly Y ves Replace the heat assy 1 Has this error been recovered Yes End YNo Replace the main control board or high voltage power supply board Vertical white belt spripe I
49. s power to the electro photographic processor system and the photosensor that detects a paper feeding system and toners Figure 2 2 shows the sensor layout drawing Sensor Exit roller Outlet sensor Heat roller Transfer roller Feed roller Paper sensor S o i 2 Toner E sensor Hopping S assy NEN LE Manual feed sensor wo Figure 2 2 Function Sensing State Manual feed Sensor Monitors whether paper was inserted into the manual feed sensor section ON Paper exists OFF No paper exists Paper sensor Detects the leading part of the paper Monitors paper feeding ON Paper exists OFF No paper exists Outlet sensor Monitors paper feeding and the paper size according to the paper sensor arrival and passing time ON Paper exists OFF No paper exists Toner sensor Detects the low toner status ON long Toner low OFF short Toner High 2 4 Electro Photographic Processor The electro photographic processor prints out the image data to be sent from the main control board on sheets of paper Figure 2 3 shows the layout drawing of the electro photographic processor 1 Image drum unit The image drum unit makes a toner adhere to the formed electrostatic latent image with static electricity This elec
50. s the lens of the LED head dirty Yes Clean the LED head Is the contact plate of the transfer roller in correct contact with the high voltage power supply board See Figure 6 5 E No Contact the contact plate of the transfer roller correctly Y ves Replace the transfer roller Has this error been recovered Yes End Y No Is the LED head installed correctly Check the CN6 connector of the main control board No Install the LED head correctly Y ves Replace the LED head Has this error been recovered Yes End Caution Setthe LED head drive time when replacing the LED head See Section 4 2 1 Y ves Replace the EP unit Has this error been recovered Yes End Caution After replacing the EP unit reset the drum counter Refer to Replacing the Drum Cartridge in User s Manual YNo Replace the main control board or high voltage power supply board O D o Toner Supply Roller Developing Roller Charge Roller Cleaning Roller Transfer Roller Heat Roller 206060 Figure 6 4 Contents A Toner Supply Roller B Developing Roller arge Roller 7 WIRING DIAGRAM WIRING DIAGRAM T OKIPAGE 4w Plus gnal Diagram S a Interconnect 7 1 Jellod Ajddng euol Jejoy 6 AOZL A0EZ uldojoAeq 240 G02 PHANG Hd
51. tance of magnet H Is the resistance normal about 120 Q Replace magnet H Is 24 V supplied between CN8 Pin 1 and CN8 Pin 2 of the main control board Replace the main control board Check the gear block or replace the hopping shaft assy Are the CN7 connectors of the pulse motor main and main control board con nected Connect the CN7 connectors correctly Y Yes Measure the resistance of the pulse motor main Is the resistance normal about 12 6 No Replace the pulse motor main Y Yes Replace the main control board JAM error 20 2 Paper feed jam Does a paper feed jam occur when the power supply is turned on Yes Is the jammed paper on paper sensor E paper exit Yes Remove the jammed paper No Is paper sensor E exit paper operating normally No Replace paper sensor E exit or paper Y Yes Replace the high voltage power supply board Y No Has the paper arrived at paper sensor E paper No Is the feed roller rotating No Check the gear block Y Yes Is the EP unit set correctly No Setthe EP unit correctly Y Yes Check the gear block Yes Has the paper arrived at paper sensor exit Yes Is the paper sensor exit operating normally No Replace the paper sensor exit Yes Replace the high voltage power supply board Y No Check the gear block Paper exit jam Does a paper exit jam occur when the power supply is turned on Yes Is the
52. tion RAM or reduce the number of print data Print Over Run A print overrun occurred because print data is complicated To release the error display press the reset button on the status motor of the printer driver Simplify the print data format Device configuration error Program ROM Check Error An error occurred during program ROM check Replace program ROM or the main control board When replacing the main control board also adjust EEPROM data See Section 4 2 4 Resident RAM Check Error An error occurred during resident RAM check Replace the main control board When replacing the main control board also adjust EEPROM data See Section 4 2 4 Category Status Message Status Code Table 6 1 Cont d Display Content Remedy Device configuration error EEPROM Check Error 60 40 An error occurred during EEPROM check Replace the main control board When replacing the main control board also adjust EEPROM data See Section 4 24 Option RAM Check Error An error occurred during option RAM check Check the connection of the Option RAM PC board If the option RAM PC board is faulty replace it Fuser Error A heater timeout error occurred See Section 6 5 2 4 Thermistor Error A thermistor error occurred Replace the thermistor of the heater Assy Thermister Open Check Error The thermistor is open Replace the thermistor of the
53. tographic Processor High Voltage Power Supply Board Main Control Board Power Supply Unit EA 2MB Memory Expansion Board Option OKIPAGE 4m Only Figure 1 1 1 2 Printer Configuration The printer unit consists of the following five hardware components Electro Photographic Processor Paper Feeder Main Control Board High Voltage Power Supply Board Power Supply Unit Figure 1 2 is the configuration of the printer unit Upper Cover Assy Top Cover Assy Power Supply Unit 4 Main Control Board High Voltage Power Supply Board 1 3 Option 1 2MB HBRB PCB Option Memory Board Only OKlpage 4m 1 4 Specification 1 2 Type Outside dimensions excludes protruding portion Weight Development method Exposure method Paper used Printing speed Paper feeding method Paper delivery method Resolution 10 Power input 11 Power consumption Desktop Height 5 9 150 mm Width 12 2 810 mm Depth 7 5 191 mm 3 8 kg Dry non magnetic development system LED stationary head Type Standard paper Xerox 4200 20 Ibs Application paper manual face up feed Label Envelope OHP paper Transparency Size 14 355 6 mm Max x 8 5 215 9 mm Thickness Automatic feed 16 28 Ibs 60 to 90 g m Manual feed
54. tors of the power supply unit and main control board connected correctly No Connect the CN2 connectors correctly Y ves Replace the main control board 6 5 3 Image Troubleshooting This section explains how to troubleshoot when an image problem is output as a result of the printing Figure 6 3 is an example of image problem output Symptom Flowchart No An image is light or blurred entirely Figure 6 3 A Dark background density Figure 6 3 B A blank paper is output Figure 6 3 0 Vertical block belt black stripe Figure 6 3 0 Cyclical defect Figure 6 3 B Print void Poor fusing An image is blurred or peeled off when it is touched Vertical white belt white stripe Figure 63 0 Light or blurred Dark background Blank paper images entirely density cc D Black vertical stripes E Cyclical defect White vertical belts or streaks Figure 6 3 Image Problems An image is light or blurred entirely 4 Is the toner low Is Toner Low being displayed Yes Supply a toner 4 Is the specified paper being used No Use the specified paper Yes Is the lens of the LED head dirty Yes Clean the LED head No Is the LED head installed correctly Check the CN6 connector of the main control board No Install the LED head correctly Y ves Is the contact plate of the transfer roller
55. trostatic latent image is formed by the lights irradiated from LED heads 2 Electromagnetic clutch The electromagnetic clutch controls the rotation of the hopping roller according to signals from the control block 1055920 oiudeu6010ud 04129 3 1no e e z nla E 4 440 NO 18 01 6ulddoH 000 S 0 Jellol Jejsue Josuas Jadeg SD E 000 0 gt 5 191101 Buidojo eq 2 IS 00091 9 NO A 291107 440 dh gt 01 2 b q31 X ES 179 0006 9 S PO mn 00089 01661 9 1 01 19H 181101 10595 paa jenueyy ete em wee eee Bunuud jenueyy Jellol 3 Pulse motor Main This pulse motor of 48 steps rotation is two phase excited by the signal from the main control board it performs feeding control by switching normal rotation to reverse rotation or vice versa and turning on off the electromagnetic clutch The relationship between the main motor electromagnetic clutch resist gear drum gear hopping roller is shown in the table below and on the subsequent pages Main Motor Electromagnetic Clutch Hopping Roller Regist Gear Drum Gear Operation Normal rotation OFF Non rotation Non rotation Rotation Warm up Reverse rotation 4 ON Rotation Rotation Rotation Hopping OFF Non rotation Rotation Rotation Prinitng LED head Theshift and latch registers receive image
56. tter on it 2 Do not expose the OPC drum to direct sunlight 3 Do not touch the fuser because it heats up during operation 4 Do not expose the image drum to light for more than five minutes at room temperature Preparation Before Troubleshooting 1 Message display The failure status of the OKIPAGE 4w plus 4m is displayed on the status monitor of the PC Take proper action according to the message displayed on the status monitor 2 LED display The OKIPAGE 4w plus 4m is equipped with only one LED This LED indicates one of the following statuss Printer Status LED Indication Ready Lighting Printing in progress Blink 1 The LED blinks at a cycle of 1 second 0 5s ON Recoverable alarm Blink 2 from data reception to printing end 2 5 LED blinks at a cycle of 0 24 second 0 125 ON Unrecoverable alarm Blink 3 The LED blinks at a cycle of 0 24 second 0 125 6 5 Troubleshooting If a trouble occurs in the OKIPAGE 4w Plus 4m troubleshoot according to the following procedures Trouble Perf il Trouble indicated by Troubleshoot according to 422 ding gt the message displayed Status Monitor Message List gt to the troubleshooting flow on the status monitor See Section 6 5 1 See Section 6 5 2 Image problem or trouble not displayed on gt the status monitor Troubleshoot according to Section 6 5
57. uas 19110 JOSU9S Jaded jenueyy lt lt 191101 19 10 e9H 191101 1901 Duiueo ge 18101 HO 291102 Jellol 1010 esjnd jo jeuuou Aq ueAup olJoloN 7 ule 1010 jo q eq o1 2 10 2 9 Electro Photographic Process 1 Electro photographic process The electro photographic process is outlined below O Charging The surface of the OPC drum is charged negatively and uniformly by applying the DC voltage to the CH roller Exposure Light emitted from the LED head irradiates the negatively charged surface of the OPC drum The surface potential ofthe irradiated surface attenuates to form the electrostatic latent image corresponding to the image signal Development and residual toner recovery The negatively charged toner is brought into contact with the OPC drum adhering to the electrostatic latent image on the OPC drum by static electricity This adhesion causes the electrostatic latent image to change to a visible image At the same time the residual toner on the OPC drum is attracted to the developing rollerby static electricity Transfer When paper is placed over the image drum surface the positive charge which is opposite in polarity to that of the toner is applied to the reverse side by the transfer roller The toner is attracted by the p

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