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OKIPAGE 8w

1. Yu JEO J8 SUEJ 1050 1068095 peel 20895 aded enuey 12 ER A m D O 1 0 lt Jala paa Jejo iei 1x3 Jae Buesa 18 FAS owg ele jo A aq JOIN CD esd jo vonet asana Ag eq oj Z 1 Normal rotation of pulse motor main Drum roller transfer roller cleaning roller CH roller developing roller heat roller exit roller rotation Reverse rotation of pulse motor main Drum roller transfer roller cleaning roller CH roller developing roller heat roller exit roller feed roller hopping roller rotation Hopping operation from the tray however is performed when the electromagnetic clutch is turned on Copyright 1998 Okidata Division of America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 14 Dit 2 Service Guide OKIPAGE8w Chapter 2 Operation Description 2 5 Electro Photographic Process 1 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 o
2. Copyright 1998 Okidata Division of America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 33 OKI Service Guide OKIPAGE8w Chapter 3 Parts Replacement 3 3 7 Paper Holder Dismount the upper cover assy See Section 3 3 4 Dismount paper holder 1 Unlock and dismount paper guide L 2 and paper guide R 3 Remove the claw and dismount hopper spring 4 e SY x Remove the claw and dismount stopper spring 5 Copyright 1998 Okidata Division of America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 34 Dit 2 Service Guide OKIPAGE8w Chapter 3 Parts Replacement 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 M 2 3 Dismount earth plate 3 two idle gears P 4 idle gear M 5 idle gear 3R 6 idle gear 2R 7 idle gear heat 8 idle gear R 9 and Gear R 10 Copyright 1998 Okidata Division of America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 35 Dit 2 Service Guide OK
3. 000 00 Warning Change drum toner Flash 1 Undefined Undefined low toner sensor total page 30 sheets Error Flash 2 OFF OFF Recovered by pressing and printing Error releasing a switch Buffer Overflow Print Overrun Error Flash 2 Recovered by pressing a switch Paper out Input Jam and the printing can be continued Error Flash 2 The printing can be continued Paper Jam Paper Size Check by cover open close Error Feed Jam Exit Jam Error Cover Open Flash 2 2 Flash 2 Hardware error fatal error Flash 3 Flash 3 Flash 3 eR call even if the printer ROM RAM error fuser error cannot recover from one of thermister error and toner SER these errors sensor error total page lt 30 During printer resetting OFF 2 During initializing ONandthen ON and then ON and then OFF OFF OFF During initializing EEPROM Flash 2 until Flash 2 until Flash 2 until Ready Ready Ready Flash 1 Slow blinking Flash 2 Blinking Flash 3 Fast blinking Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 58 Service Guide OKIPAGE8w Chapter 6 Troubleshooting Procedures 6 5 Troubleshooting Trouble indicated by ihe message displayed on the status monitor Image problem or rouble mol displayed on Ihe status monitori 6 5 1 Status Monitor Message
4. America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 68 OK T Service Guide OKIPAGE8w Chapter 6 Troubleshooting Procedures 7 Poor fusing Is the specified paper being used No Use the specified paper Xerox 4200 20 Ibs Yes Is the bias spring normal Tension 3 25 kg No Replace the bias spring Yes Are the heater connector of the heat assy and the CN1 connector of the power supply unit connected correctly No Connect the connectors correctly Yes Replace the heat assy Has this error been recovered Yes End No Replace the main control board or high voltage power supply board Copyright 1998 Okidata Division of America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 69 OK T Service Guide OKIPAGE8w Chapter 6 Troubleshooting Procedures 8 Vertical white belt stripe Is the lens of the LED head dirty Yes Clean the LED head No 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 Yes Replace the transfer roller Has this error been recovered Yes End No Is the LED head installed correctly Check the HEAD1 HEAD2 connector of the main control board
5. 58114414 ee 58 Bearing Gear 4971 1 59 Dp402540 p 60 CotatCB 46901 1 6 CONNCodHV 140638101 0 1 Copyright 1998 Okidata Division of America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 78 OK Service Guide OKIPAGE8w Chapter 8 Parts List Heat Assy PartName OKIDATAPat Qty Remarks 2 1 jHeatRoler 7 4PB4083 1202P1 1 5393487001 2 2 40491 1 HalogenLamp 40492 11 JV 3 Thermostat 4PB4083 1204P1 11 56213001 4PB4083 1205P1 1 55625501 Heat Cord 4PB4083 1243P1 1 56635501 Copyright 1998 Okidata Division of America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 79 OK Service Guide OKIPAGE8w Chapter 8 Parts List Base Plate Unit Insulation Sheet A 140722501 aa Power Supply Unit 4YB4049 1853P1 40455701 Power Supply Unit 4YB4049 1854P1 40455801 Main Control Board 40681602 f ed Program ROM 40681701 OP8w EPROM 22 ACCord 3 54011 1266 1 wass 3Y94011 1315P 1 USA Taiwan 1 1 Conti
6. Yes Check the gear block or replace high voltage power supply board No Is the paper already fed to paper sensor E paper Yes Is paper sensor E paper operating normally No Replace paper sensor E paper Yes Replace high voltage power supply board No Replace the stepping roller or friction pad No Is the hopping roller rotating Yes Check the coil resistance of magnet H Is the resistance normal about 120 W No Replace magnet H Yes Is 26 V supplied between CN8 Pin 1 and CN8 Pin 2 of the main control board No Replace the main control board No Check the gear block or replace the hopping shaft assy No Are the CN7 connectors of the pulse motor main and main control board connected No Connect the CN7 connectors correctly Yes Measure the resistance of the pulse motor main Is the resistance normal about 3 8 W No Replace the pulse motor main Yes Replace the main control board JAM error 2 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 Yes Replace the high voltage power supply board No Has the paper arrived at paper sensor E paper No Is the feed roller rotating No Check the gear block Yes Is the EP image drum unit set correctly No Set the EP image drum
7. 0 Reset Page Count Reset Number of revolutions 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 Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 86 OK Service Guide OKIPAGE8w Chapter C Maintenance Utility 4 3 Printer Status Printer Status is used to display the printer status See Figure C 1 Engine Maintenance Driver GUI gt Ok Page Printer Engine Mantenance Engine Menu Setting Printer Status Print Position Imm Heady Warming Up LED Head Marking No Language OPEL LED Head Width C Full Engine Counter Reset Test Print a Narrow Drum Count ES LED Head Wire x 300 1 7 300 20 Total Drum R 0 Reset ption eload Fage Count 0 Reset Reset All Figure C 1 Main Menu Dialog Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 87 Service Guide OKIPAGE8w Chapter
8. 1 OODOOOO0 HEAD2Z 12 Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 75 OK T Service Guide OKIPAGE8w Chapter 7 Wiring Diagram 7 2 2 High Voltage Power Supply Board P2H VE PSS EBEN CN F51 NENNEN Copyright 1998 Okidata Division of America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 76 Service Guide OKIPAGE8w Chapter 8 Parts List Cover Assy Upper OKIPAGE 8p 1 40414481 1 OKIPAGE8w 2 Jen 7 44590011 1 OKIPAGE8p en2 4 LAJ4 jJ441322001 11 OKIPAGE8w 93 Swth _ 4041300 11 OKIPAGE8p 5 TA TES 1260P1 12550 NES 7 Plate Hopper 40412901 2 2 24 Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 77 Service Guide OKIPAGE8w Chapter 8 Parts List Base Frame Unit jPartName jOKIHJPart OKIDATA Part Qty Remarks Frame Unit Assy x 4059201 a j 2 High Voltage Power Supply Board P2H p
9. 5 Separator amp 471901 1 2 6 Compression Spring S 4PP4083 1246P1 40781701 1 50981001 8 Pulse Motor 77 40496401 1 4 Image Drum Unit mum p P _ Type 6 Hopping Roller 4PB4083 1129P1 40779601 53348201 aB Holder Hopping 3PP4083 1128P1 1 50708801 Roller or H Hopping 3PB4083 1127P1 50809001 ME oodd Shaft Consumable 23 deGea3R 4710 1 2 25 4083 1185 1 26 4PP4083 1186P1 27 dleGearE B 4083 1187 1 22 EjectRoller 40761 32 Tension Spring 46401 1 33 GerT o onra 1 j 34 Transfer Roler 140713601 Up Roller Roller p Back Up Roller 38 PaperGuide R 464501 1 002 39 PaperGuide L 404401 W J O 43 Top Cover Assy 4050210 1 jOKIPAGE8p OEL 43 Top Cover Assy 405902100 1 jOKIPAGE8w OEL 43 Top Cover Assy 4059204 1 jOKIPAGE8w ODA 45 LEDHead 2 46 21 pnt 2 46 FlatCableAssy _ 059120 1 10 22 Up Roller 8 49 SheetGuide 46660 51 HeatAssy 140592801 1 20 51 HeatAssy 7 140592802 1 90 9 0 52 Stopper Spring 2 40401 1 20 53 Caution Label TR 4PB4091 6047P1 1 909 55 FilmGuide 4PP4083 119 1 M 51025301 2 56
10. OKI Service Guide OKIPAGE8w Chapter 0 Introduction Front Cover OKIDATA Service Guide d OKIPAGE 8w LED PAGE PRINTER Adobe Acrobat printable reference copy of the OKIDATA Service Training Manual 05 17 99 Note This Adobe Acrobat version of the Okidata Service Training Manual was built with the pictures rendered at 300 dpi which is ideal for printing but does not display well on most displays Table of Contents Page Service Guide OKIPAGE8w 0 Introduction Preface 1 1 Configuration Configuration 2 1 1 System Configuration 3 1 2 Printer Configuration 4 1 9 Specification 5 1 4 Safety Standards 6 1 4 1 Certification Label 7 1 4 2 Warning Label 8 2 Operation Description 2 0 Operation Description 9 2 1 Main Control Board 10 2 2 Power Supply Unit 11 2 3 High Voltage Power Supply Board 12 2 4 Electro Photographic Processor 13 2 5 Electro Photographic Process 14 2 5 1 Explanation of Each Process Operation 15 2 6 Paper Jam Detection 16 2 Toner Low Detection 17 2 8 Cover Open 18 2 9 Detecting ID existence 19 3 Parts Replacement Parts Replacements 20 3 1 Precautions for Parts Replacement 21 3 2 Parts Layout 22 re Upper Cover Assy 23 Base Frame Unit 24 Base Plate Unit 25 9 9 Replacing Parts 26 tanus 3 3 1 Hopper Plate 27 3 3 2 LED Head and Head Spring 28 3 3 3 Transfer Roller 29 e 3 3 4 Upper Cover Assy 30 3 3 5 High Voltage Power Sup
11. Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http opx okidata com Page 54 Service Guide OKIPAGE8w Chapter 6 Troubleshooting Procedures 6 1 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 Checkthe printer under the condition close to that under which the failure occurred Copyright 1998 Okidata Division of America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 55 Service Guide OKIPAGE8w Chapter 6 Troubleshooting Procedures 6 2 Check Points Before Correcting Image Problems Is the printer running in proper ambient conditions Are consumables toner and EP image drum unit replaced correctly Are sheets of paper normal cum omm Is the EP image drum unit set correctly Copyright 1998 Okidata Division of America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 56 Service Guide OKIPAGE8w Chapter 6 Troubleshooting Procedures 6 3 Notes When Correcting Image Problems 1 2 3 4 Do not touch the surface of the image drum nor place foreign matter on it Do not expose the image drum to direc
12. Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 23 OK Service Guide OKIPAGE8w Chapter 3 Parts Replacement Upper Cover Assy Spur gear A Guide side Hopper plate Upper cover Figure 3 1 Copyright 1998 Okidata Division of America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 24 OK Service Guide OKIPAGE8w Chapter 3 Parts Replacement Base Frame Unit Flat cable assy Head spring Top cover assy Pressure roller Back up roller Paper guide R Transfer roller Paper guide L N Hopper Paper spring holder Ar S Stopper spring ENS HESE M A A Side plate M Idle qear heat Tension plate Magnet H hopping shaft High voltage power supply board P2H Pulse motor Main Sheet guide Power sensor E Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 25 OK Service Guide OKIPAGE8w Chapter 3 Parts Replacement Base Plate Unit Power supply unit a Main control board High Voltage Power Supply board m
13. Okidata Division of America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 89 Dit 2 Service Guide OKIPAGE8w Chapter C Maintenance Utility 4 6 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 C 4 Ok Page Printer Engine Maintenance Oki Page Printer Engine Maintenance ver 0 54 VORIHBPD version ver 00 06 Copyright C 1996 Oki Data Corporation Frinter Information version CPU version Oki 1 Engine version Printer memory 125 KBytes Printer ID Manufacture ORI DATA CORP Class PRINTER Model Name ORIDATA ORIPAGE dw Description OKIDATA OKIPAGE dw Compatible ID None Command set HIPERYWINDOWS OPEL Figure C 4 About Dialog Figure C 4 About Dialog Copyright 1998 Okidata Division of America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http opx okidata com Page 90 Service Guide OKIPAGE8w Chapter C Maintenance Utility 4 7 Reload Reload is used to reload menu setting values Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 91
14. See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 49 Dit 2 Service Guide OKIPAGE8w Chapter 4 Adjustment 4 2 1 Setting LED Head Drive Time Caution When the luminous 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 driver to set the luminous intensity displayed on the LED head as the LED head drive time See Figure 4 2 below e Luminous intensity of LED head Luminous intensity display 027 135 405211 HTT ANTENN HR EHI VL HI DUOJOD A 2430203017 The last three digits indicate the luminous intensity of the LED head Figure 4 2 Copyright 1998 Okidata Division of America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 50 Dit 2 Service Guide OKIPAGE8w Chapter 4 Adjustment 4 2 2 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 of the maintenance utility to reflect EEPROM data on the new main control board Reflect 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 utilit
15. Service Guide OKIPAGE8w Chapter C Maintenance Utility 4 8 Exit Clicking the Exit button terminates the maintenance utility Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com
16. 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 1 500 596 duty 45g cartridge kit Image drum cartridge 10 000 at continuous printing Copyright 1998 Okidata Division of America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 6 Service Guide OKIPAGE8w Chapter 1 Configuration 1 4 Safety Standards 1 4 1 Certification Label 1 4 2 Warning Label Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 7 Dit 2 Service Guide OKIPAGE8w Chapter 1 Configuration 1 4 1 Certification Label The safety certification label is affixed to the following location of the OKIPAGE 8w Copyright 1998 Okidata Division of America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Dit 2 Service Guide OKIPAGE8w Chapter 1 Configuration 1 4 2 Warning Label Warning labels are affixed to the locations that may cause bodily injury During maintenance do work with enough care while following instructions on these warning labels Fe UE AN ERE emen FOr OEL onan TENER
17. 1 1 3 JDATABIT 2 0 0 0 0 0 0 0 0 0 4 JDATABIT 3 L 0 0 0 0 0 5 JDATABIT 4 0 0 0 0 0 0 0 0 0 0 6 JDATABIT 5 0 0 0 0 0 0 7 JDATABIT 6 27 8 JDATABIT 7 J 2 9 JDATABIT 8 42 lt PR Completion of input data reception ACKNOWLEDGE BUSY lt PR OKIPAGE 8w is not ready to receive data PAPER END Paper end detection SELECT Select state Online 14 gt PR Carriage return control AUTOFD us 1 jNetued 20 86041 Grounding for signas 17 CHASSISGROUND 8 1 1 1 1 1 PR jE0OmAma 19 thru 30 OV Grounding for signas P INPUT PRIME FAULT 33 Grounding for signas 46 2 3 3 3 x 36 SEIN 8 8 Data input enable or disable e Connector pin arrangement 4 Signal level e LOW OVto O 8V e HIGH 2 4 V to 5 0 V 5 Interface circuit e 8w a Receiving circuit T R 3 3KQ 1 0 STROBE A 5V R 3 3 1 0 Kt2 STROBE b Sending circuit Open Collector T 45V Open Collector 6 Timing charts a Data receiving timing compatible mode PARALLEL DATA DATA BITs 1 to 8 0 5 us min DATA STROBE 0 5 us min 0 5 us BUSY 0 min D min ACKNOW
18. C Maintenance Utility 4 4 Test Print Test Print is used to check whether the printer can print data normally after the maintenance utility has terminated See Figure C 2 Ok Page Printer Engine Maintenance Local Print Hen u Status Print Print Menu Demonstration Print Demo Printer Available Font Print Print Fonts Charge Roller Cleaning File Print Test Print File Figure C 2 Test Print Dialog Figure C 3 Option Menu Dialog Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 88 OK T Service Guide OKIPAGE8w Chapter C Maintenance Utility 4 5 Option Option is used to execute the following functions See Figure C 3 below 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 5 User Used to set a destination default ODA OEL INTL INTA See Figure C 3 below Uk Page Printer Engine Maintenance EEPROM Operation Printer Engine Reset Reset Engine EEPROM Data Upload Upload EEPROM Data Download Download HAYY Check Printer RAM Check RAK Check Set User Figure C 3 Option Menu Dialog Figure C 3 Option Menu Dialog Copyright 1998
19. 3 6 3 Remove two screws 1 from heat assy Section 3 3 9 life the heat assy and dismount idle gear E A 2 and idle gear E B 3 4 Unlock and dismount drive shaft E Eject 4 Dismount two eject rollers 5 Copyright 1998 Okidata Division of America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 37 OKI Service Guide OKIPAGE8w Chapter 3 Parts Replacement 3 3 11 Pressure Roller B Back Up Roller Dismount the upper cover assy See Section 3 3 4 Dismount the high voltage power supply board See Section 3 3 5 Dismount the heat assy Section 3 3 9 oo poz Dismount the engagement with the left ground then pressure roller B 1 Two bearing BUs 2 and two bias springs 3 also come off at the same time Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 38 Dit 2 Service Guide OKIPAGE8w Chapter 3 Parts Replacement 3 3 12 Separator Guide 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 four screws 1 4 Dismount inlet 2 from base frame 3 Dismounting inlet 2 gt Insert a screwdriver into the hole on the side of base frame 3 remove the inl
20. 6 6 A blank paper is output 67 7 Poor fusing 68 e 8 Vertical white belt stripe 69 Contents Figure 6 4 70 nu Contents Figure 6 5 71 7 Wiring Diagram 7 1 Interconnect Signal Diagram 72 7 2 PCB Layout 73 2 1 Main Control Board HBY PCB 74 2 2 High Voltage Power Supply Board 75 8 Parts List Cover Assy Upper 76 Base Frame Unit 77 Heat Assy 78 Base Plate Unit 79 Local Printing Local Printing 80 B Parallel Interface Parallel Interface 81 C Maintenance Utility Outline of Maintenance Utility 82 Detail of Each Function 83 4 1 Engine Menu Setting 84 4 2 Engine Counter 85 4 3 Printer Status 86 Table of Contents 4 4 Test Print 4 5 Option 4 6 About 4 7 Reload 4 8 Exit Page 1 Ook TI Service Guide OKIPAGE8w dm Chapter 0 Introduction Preface This Service Handbook describes the field maintenance procedures for the OKIPAGE 8w This manual is written for use by service persons Please note that you should refer to the Printer User s Manual for operating procedures Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 2 Service Guide OKIPAGE8w Chapter 1 Configuration Configuration System Configuration Printer Configuration Specification Safety Standards Copyright 1998 Okidata Division o
21. AGE8w Chapter 3 Parts Replacement 3 3 2 LED Head and Head Spring 1 Open top cover assy 1 2 Dismount the left clamp and LED head 2 Then dismount flat cable assy 3 Dismount two head springs 4 Copyright 1998 Okidata Division of America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 29 Dit 2 Service Guide OKIPAGE8w Chapter 3 Parts Replacement 3 3 3 Transfer Roller 1 Open top cover assy 1 and dismount the image drum unit Type 6 2 2 Remove the right claw Then dismount transfer roller 3 two regist bearings 4 and gear T 5 Copyright 1998 Okidata Division of America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 30 OKI Service Guide OKIPAGE8w Chapter 3 Parts Replacement 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 the image drum unit Type 6 3 Move paper guide L 4 and paper guide R 5 on the rear of the printer to the center Remove two front claws of upper cover assy 6 and lift upper cover assy 6 Dismount spur gear A 7 guide slide L 8 and guide slide R 9 Dismount lamp 10 AD p P e Du Copyright 1998 Okida
22. BPX for any updates to this material http bpx okidata com Page 18 Service Guide OKIPAGE8w Chapter 2 Operation Description 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 Copyright 1998 Okidata Division of America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 19 Dit 2 Service Guide OKIPAGE8w Chapter 2 Operation Description 2 9 Detecting ID existence In this model a micro switch may be activated applying a high voltage to the machine under a state where the cover is slightly opened In this case there is a fear that when a user insert his hand through the opening he may be shocked unless an ID has been installed Safety standard measures EN60950 1992 Therefore with mechanism an interlock system for micro switch shall be added if a machine has no mechanism with ID inside Also for control ID existence detection shall be implemented according to the following method Conditions for judging ID existence If a toner sensor does not change for 1 2 cycle of toner sensor basic rotation cycle soon after pow
23. Base plate assy Copyright 1998 Okidata Division of America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Service Guide OKIPAGE8w Chapter 3 Parts Replacement Page 26 3 3 Replacing Parts This section explains how to replace parts and assemblies 3 3 1 Hopper Plate 3 3 2 LED Head and Head Spring 3 3 3 Transfer Roller 3 3 4 Upper Cover Assy 3 3 5 High Voltage Power Supply Board P2H P6L 3 3 6 Top Cover Assy and Flat Cable Assy 3 3 7 Paper Holder 3 3 8 Side Plate M and Idle Gear 3 3 9 Heat Assy 3 3 10 Drive Shaft E Eject and Eject Roller 3 3 11 Pressure Roller B Back Up Roller 3 3 12 Separator Guide 3 3 13 Pulse Motor Main 3 3 14 Hopping Shaft Assy 3 3 15 Resist Roller 3 3 16 Paper Sensor E Paper Sensor Exit and toner Sensor Assy 3 3 17 Base Plate Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 27 Dit 2 Service Guide OKIPAGE8w Chapter 3 Parts Replacement 3 3 1 Hopper Plate 1 Remove two claws and dismount hopper plate 1 Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com m Page 28 Dit 2 Service Guide OKIP
24. GE 8w malfunctions after the power supply has been turned on Turn the power supply off then on again Is the LED lamp on No Is the AC cable connected correctly No Connect the AC cable correctly Yes Is 5 V supplied between CN1 Pin 7 and CN1 Pin 13 of the high voltage power supply board Pin 7 5 V Pin 13 0 V No Are the CN1 connectors of the high voltage power supply board and main control board connected correctly No Connect the CN1 connectors correctly Yes 15 5 V supplied between CN2 Pin 2 and CN2 Pin 3 of the main control board Pin 2 5 V Pin 3 0 V No Replace the power supply board Yes Replace the main control board Yes Is 1 2 V voltage supplied between CN1 Pin 2 and Pin 13 of the high voltage power supply board No Replace the main control board Yes Replace the high voltage power supply board Yes Replace the main control board JAM error 2 1 paper input jam Does a paper input jam occur when the power supply is turned on Yes Is the jammed paper on paper sensor E Yes Remove the jammed paper No Is paper sensor E manual feed paper operating normally No Replace paper sensor E manual feed or paper Yes Replace the high voltage power supply board No Does a paper input jam occur during paper loading Yes Is the paper already fed to paper sensor E manual feed Yes Is paper sensor E manual feed operating normally No Replace paper sensor E manual feed
25. ID not Installed state should not be stored in the EEPROM 2 A shift to ID not Installed and Toner Sensor Error shall be made at cover open or close Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 20 OK T Service Guide OKIPAGE8w Chapter 3 Parts Replacement Parts Replacements 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 3 1 Precautions for Parts Replacement 3 2 Parts Layout 3 3 Replacing Parts Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 21 Dit 2 Service Guide OKIPAGE8w Chapter 3 Parts Replacement 3 1 Precautions for Parts Replacement 1 Be sure to disconnect the AC cord and interface cable before replacing parts a Be sure to disconnect the AC cord in the following procedures i Turn off the POWER switch 0 ii Disconnect the AC plug from the power outlet Disconnect the AC cord and interface cable from the printer b Be sure to reconnect the printer using the following procedures i Connect the AC cord and interface
26. IPAGE8w Chapter 3 Parts Replacement 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 14 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 13 together Take care not to drop Halogen lamp 7 7 Dismount thermistor 10 8 Dismount the clamp then thermostat 11 heat contact 12 and heat cord 5 together 9 Dismount heat contact 12 and heat cord 5 from thermostat 11 Caution Take care not to bend the claw when dismounting heat bearing 8 Copyright 1998 Okidata Division of America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 36 Dit 2 Service Guide OKIPAGE8w Chapter 3 Parts Replacement 3 3 10 Drive Shaft E Eject and Eject Roller 1 Dismount the upper cover assy See Section 3 3 4 2 Dismount top cover assy See Section 3
27. IPAGE8w Chapter 4 Adjustment 4 0 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 Adjustment Types and Functions 4 2 Adjustment When Replacing a Part Copyright 1998 Okidata Division of America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 45 Service Guide OKIPAGE8w Chapter 4 Adjustment 4 1 Adjustment Types and Functions 4 1 1 Printer Driver 4 1 2 Engine Maintenance Utility Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 46 OK T Service Guide OKIPAGE8w Chapter 4 Adjustment 4 1 1 Printer Driver For Microsoft Windows This printer driver has the following functions e Drum counter reset e Charge roller cleaning OKI OKIPAGE w Plus D tatuz Honitor sleeping 1545 Punter Setup Wake up Help Printer status setup PCLRIP Meinicnancc About D un Gurl When repla
28. LEDGE 0 5 us to 10 us min b INPUT PRIME timing when the INPUT PRIME signal is enabled 50 ms min INPUT PRIME NENNEN I SELECT 5 us max ACKNOWLEDGE 0 5 us to 10 ms c Data sending timing nibble mode ACKNOWLEDGE BUSY ILLALLA DATAbI3 KEER DATADRT FAULT DATADILO Xe DATAA rr LIT VTL SELECT DATAA DATARS PAPER END LA ELM 2 KA DATAE Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http opx okidata com Page 82 Dit 2 Service Guide OKIPAGE8w Chapter C Maintenance Utility Outline of 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 Transmission of menu setting command to initialize and change setting values Printer RAM check Test printing Printer information display Printer EEPROM read write 2 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 3 OUTLINE OF MAINTENANCE UTILITY FUNCTIONS The maintenance utility i
29. List 6 5 2 Status Message Troubleshooting 6 5 3 Image Troubleshooting Troubleshoot according to Slatus Monitor Message List See Section 6 5 1 Perform detailed Troubleshooting according le troubleshooting flow See Section 6 5 2 Troubleshoot according 10 Seciion 5 5 3 Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com 59 Service Guide OKIPAGE8w Chapter 6 Troubleshooting Procedures 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 Table 6 1 Category Normal status Normal status Normal status Normal status Normal status Normal status Normal status Normal status Normal status Normal status Status Message Warming Up Online Ready Power Save Mode Toner Low Toner Sensor Change Drum Manual Paper In Printing In Progress Ejection in Progress Manual Request Executive Letter Legal 14 Status Explanation Remedy Code 18 00 Warming up status Normal operation 00 10 Online ready status Normal operation 10 00 Normal operation replace the toner cartridge 10 01 10 02 replacing the image drum 12 20 The paper is in the manual Normal operation feed mode 14 20 Printing in progress Normal operati
30. No Install the LED head correctly Yes Replace the LED head Has this error been recovered Yes End Caution Set the LED head drive time when replacing the LED head See Section 4 2 1 Yes Replace the EP image drum unit Has this error been recovered Yes End Caution After replacing the EP image drum unit reset the drum counter Refer to Replacing the Drum Cartridge in User s No Replace the main control board or high voltage power supply board Copyright 1998 Okidata Division of America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 70 Dit 2 Service Guide OKIPAGE8w Chapter 6 Troubleshooting Procedures Contents Figure 6 4 A Toner Supply Roller B Developing Roller Charge Roller U O Cleaning Roller m Transfer Roller F Heat Roller Figure 6 4 Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com OKI Contents Figure 6 5 A U O m Toner Supply Roller Developing Roller Charge Roller Cleaning Roller Ground Drum Figure 6 5 Service Guide OKIPAGE8w Chapter 6 Troubleshooting Procedures Page 71 Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDA
31. RUKT MEA zc AN ki T 3 AN LEES Fer China TAIWAN Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 8 Page 9 Service Guide OKIPAGE8w Chapter 2 Operation Description 2 0 Operation Description The OKIPAGE 8w consists of a main control board a high voltage power supply board a power supply unit and an electro photographic processor The OKIPAGE 8w receives print data from a higher level interface and sequentially stores memory The OKIPAGE 8w 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 8w uu Adang amog lun eDejoA yb og eBeyoA uBiH c IOAIH TOAIH HAMO VECOSE ier OF a p A AS A9 GINS WOH YSE dit WHO SL X INL Wy eng sseJppy 91 X sng ejr p BEEd S JO E YHN VFN j guess Add quvogs Wyo Quvogs NOILLdO 4S00e0 LIN NOH dad ICCN ab 991 439NMrria JOIO Figure 2 1 Block Diagram Copyrigh
32. TA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 72 Service Guide OKIPAGE8w Chapter 7 Wiring Diagram 7 1 Interconnect Signal Diagram L NC n3 am 4 Low s MONS uun Ajddng Jamo dN 90 00N2 Gat ENO e E o a 2 OWGH pyeog 01 U04 H d peog Ajddng 1eMog DdO oy abey OA uBiH 10 5 E K LE NS JOSEY Z UO LNG a 0 O00 0 0 0 9 D O D io oo oO oO oOo O OR fo 0 O O 0 0 90 GF Q OF OO o aoepaju josuaceDeyoA ubIE LN 19d a peog Ajddns 949 eDeyoA uDIH 542 NAE LA Oot zg Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 73 Service Guide OKIPAGE8w Chapter 7 Wiring Diagram 7 2 PCB Layout 7 2 1 Main Control Board NMA PCB 7 2 2 High Voltage Power Supply Board Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 74 OKI Service Guide OKIPAGE8w Chapter 7 Wiring Diagram 7 2 1 Main Control Board HBY PCB
33. ace it Device Fuser Error 60 80 A heater timeout error See Section 6 52 4 configuration error occurred Device Thermistor Error 60 90 A thermistor error Replace the configuration error occurred thermistor of the heater Assy Device Thermistor Open 60 91 The thermistor is open Replace the configuration error Check Error thermistor of the heater Assy Device Thermistor Short 60 92 A thermistor short Replace the configuration error Check Error occurred thermistor of the heater Assy Device Watch Dog Timeout 60 00 A watchdog timeout To clear the error configuration error Error occurred display turn on the power supply again Replace the main control board Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 60 Dit 2 Service Guide OKIPAGE8w Chapter 6 Troubleshooting Procedures 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 The OKIPAGE 8w malfunctions after the power supply has been turned on 2 Jam error Paper input 21 Paper feed jam 2 2 Paper exit jam 2 3 Caution When replacing the main control board troubleshooted according to the troubleshooting flowcharts also adjust EEPROM data 1 The OKIPA
34. cable to the printer ii Connect the AC cord to the power outlet Turn on the printer s POWER switch Disconnectimg 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 disassembled 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 can generate static electricity 8 Do not place PC boards directly on devices or floors Maintenance Tools Table 3 1 lists the maintenance tools necessary for parts replacement siman UTC ets DN sedie Screwdriver pm ho 2 100 Philips Screwdriver Maintenance Utility Table 3 2 Maintenance Utility w Maintenance utility 1 Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http opx okidata com Page 22 Service Guide OKIPAGE8w Chapter 3 Parts Replacement 3 2 Parts Layout This section explains the layout of main parts Upper Cover Assy Base Frame Unit Base Plate Unit Copyright 1998 Okidata
35. cma drum clear rnnt Figure 4 1 1 Drum counter reset This function resets the life of the drum counter when the image drum unit is replaced Clicking the clear button resets the life 2 Charge roller cleaning This function cleans the charge roller of the image drum unit it is used when printing is unclear For details on how to operate this function refer to User s Manual Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 47 Service Guide OKIPAGE8w Chapter 4 Adjustment 4 1 2 Engine Maintenance Utility See Appendix C Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 48 OK T Service Guide OKIPAGE8w Chapter 4 Adjustment 4 2 Adjustment When Replacing a Part The table below lists the parts that requires adjustment when they are replaced LED head Set the LED head drive time Set the LED head dot count OKIPAGE 8w only Image Drum Unit Reset the drum counter Refer to User s Manual Main control board Upload or download EEPROM data 4 2 1 Setting LED Head Drive Time 4 2 2 Uploading and Downloading EEPROM Data Copyright 1998 Okidata Division of America Inc All rights reserved
36. count 4 LED Head Wire Used to specify whether the 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 D600WA4 5 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 Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 85 Service Guide OKIPAGE8w Chapter C Maintenance Utility 4 2 Engine Counter Engine Counter is used to display and initialize the following count values See Figure C 1 Engine Maintenance Drive GUI Ol Page Printer Engine Mantenance Engine Menu Setting Print Posion Omm LED Head Marking No 1 55 157 LED Head idth Full Narrow LED Head wire 300 1 3 00 2w Figure C 1 Main Menu Dialog 1 Drum Count Printer Status 47 Ready Warming Up Language OPEL Engine Counter Reset Test Print Drum Cnaunt Option Total Drum Reload
37. d Copyright 1998 Okidata Division of America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 65 OK T Service Guide OKIPAGE8w Chapter 6 Troubleshooting Procedures 4 Vertical black belt stripe Replace the EP image drum unit Has this error been recovered Yes End Caution After replacing the EP image drum unit reset the drum counter Refer to Replacing the Drum Cartridge in User s Manual No Replace the LED head Has this error been recovered Yes End Caution Set the LED head drive time when replacing the LED head See Section 4 2 1 No Replace the main control board or high voltage power supply board Copyright 1998 Okidata Division of America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 66 Dit 2 Service Guide OKIPAGE8w Chapter 6 Troubleshooting Procedures 5b Cyclic defect mage Drum 1 98 50 3 mm Developing roller 44 36 6 mm Toner supply roller Charge roller 0 81 20 6 mm Cleaning roller Transfer roller 1 71 43 4 mm Replace the image drum unit Heat roller 2 46 62 5 mm Replace the heat roller Pressure roller B 1 98 50 3 mm Replace pressure roller B Caution After replacing the image drum unit reset the drum counter Refer to Replacing the Drum Car
38. ddns jede Qiii y 45 108008 JANE sa Jeja J amp jor Buidapaaeg CO CO edeg pela edeg r CD Auanyap Jade Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 15 OKI Service Guide OKIPAGE8w Chapter 2 Operation Description 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 DS NA Hf AA ID Magnetic substance plate F Kl NP N P p Pin iN wass Hopping shafi EE F Hopping roller oppina Engagement section When the clutch is ON Happing 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 Printing and warm up At warm up Triple gear Transfer gear Regist gear Idle gear Planetary gear Hopping gea
39. drum 2 The toner applied to the developing roller is thin coated by the developing blade 3 A toner 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 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 gt a Paper Transfer roller High vollage power supply 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 rol
40. e OPC drum being exposed to external light Yes Set the OPC drum in the OKIPAGE 8w and wait for about 30 minutes No Is the heat roller of the heat assy dirty Yes Clean the heat roller No Is the terminal of the EP image drum unit in correct contact with the contact plate See Figure 6 4 D and Figure 6 5 No Contact the terminal correctly Yes Replace the EP image drum unit Has this error been recovered Yes End Caution After replacing the EP image drum unit reset the drum counter Refer to Replacing the Drum Cartridge in User s Manual No Replace the main control board or high voltage power supply board Copyright 1998 Okidata Division of America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 64 OK T Service Guide OKIPAGE8w Chapter 6 Troubleshooting Procedures 3 A blank paper is output Is the LED head connected correctly Check the HEAD1 HEAD2 connector of the main control board No Connect the LED head correctly Yes Is the terminal of the EP image drum unit in correct contact with the contact plate See Figure 6 5 E No Contact the terminal correctly Yes Replace the LED head Has this error been recovered Yes End Caution Set the LED head drive time when replacing the LED head See Section 4 2 1 No Replace the main control board or high voltage power supply boar
41. ensions excludes protruding portion 3 Weight 4 Development method Exposure method b Paper used 6 Printing speed 7 Paper feeding method 8 Paper delivery method 9 Resolution 10 Power input 11 Power consumption 12 Temperature and humidity Desktop Height 5 9 150 mm Width 12 2 310 mm Depth 7 5 191mm 9 3 Ibs 4 2 kg Dry non magnetic development system LED stationary head Type e Standard paper Xerox 4200 20 Ibs e Application paper manual face up feed Label Envelope OHP paper Transparency lt Size gt 14 355 6 mm Max x 8 5 215 9 mm Thickness Automatic feed 16 to 28 Ibs 60 to 105 g m Manual feed Label Envelope OHP paper transparency First print 23 seconds A4 after warm up Continuous print 8 sheets minute A4 Warm up time 40 seconds 120 VAC for ODA 230 VAC for OEL INT at room temperature 77 F 25 C Automatic paper feed or manual paper feed Face down 600 dpi x 600 dpi true 230 VAC 10 for OEL INT 120 VAC 15 for ODA Peak Approx 450W Typical operation Approx 100W Idle Approx 30W Power save mode Approx 5W Humidity During operation 10 to 32 C 20 to 80 RH relative humidity In storage 10 to 43 10 to 9096 RH relative humidity No condensation is permissible Caution Temperature and humidity in storage are measured with the OKIPAGE 8w being packed
42. ering on or closing cover no installed ID shall be judged stopping Warming Up motion to shift the machine mode to light malfunction But this error can be recovered by cover open and close operation after installing ID Ttime Remaks OO As the toner sensor monitors at intervals of 40 msec the fractional part should be rounded down ID existence detection time The conditions for enabling this error should be as follows Valid condition In the case of 31 pages or more in total drum counter Invalid condition In the case of 30 pages or less in total drum counter a significant malfunction toner sensor error shall occur But when the toner sensor breaks down with 31 or more counted in total at the drum ID not Install will be displayed without fail at power on Even in this case the machine should be in printable state so that printing can be guaranteed until the completion of toner repair See the drawing below Abnormal toner sensor Other cases waveform ID not Installed POWER ON displayed informed Cover open close Abnormal toner sensor waveform slatus etatus B Normal Normal Abnormal toner sensor waveform Cover open clase Cover open close Mormal toner sensor waveform Toner Sensor Error di splayed infonmed ON LINE Normal printing Abnarmal toner sensor waveform Normal printing Image Drum ID not Installed Toner Sensor Error Specification 1 Toner sensor error
43. ess Partner Exchange BPX for any updates to this material http bpx okidata com Page 17 Service Guide OKIPAGE8w Chapter 2 Operation Description 2 7 Toner Low Detection e 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 Hardware Configuration of Toner Sensor e 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 a When the toner low state continues twice Toner Low occurs This state is monitored at a cycle of 40 milliseconds b When the toner full state continues twice Toner Low is released This state is monitored at a cycle of 40 milliseconds c When the toner sensor does not change over two cycles T x 2 the toner sensor alarm state occurs d 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 mme Basic rotation cycle of toner sensor Toner low time t1 gt 0 6 sec Toner full time 0 6 gt t1 gt 0 14 sec Copyright 1998 Okidata Division of America Inc All rights reserved See the OKIDATA Business Partner Exchange
44. et claw from base frame 8 and dismount inlet 2 5 Disconnect three cables 4 and connector 11 and dismount base frame 3 Then remove screw 10 lt Disconnecting connector 11 12 gt Dismount connector 11 by drawing it upward while pushing the clamp lever with a standard screwdriver 6 Dismount the paper holder assy See Section 3 3 7 7 Dismount two engagements and sheet guide 5 8 Dismount friction pad 6 compression spring S 7 and separator guide 8 9 Dismount paper sensor E 9 Disconnecting Connector Screw driver cf lover Copyright 1998 Okidata Division of America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 39 OKI Service Guide OKIPAGE8w Chapter 3 Parts Replacement 3 3 13 Pulse Motor Main Dismount the upper cover assy See Section 3 3 4 Dismount the high voltage power supply board See Section 3 3 5 Dismount side plate M See Section 3 3 8 Dismount the base frame See Section 3 3 12 wr u Ie 2 Remove two screws 1 and dismount pulse motor main 2 Copyright 1998 Okidata Division of America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 40 Dit 2 Service Guide OKIPAGE8w Chapter 3 Parts Replacement 3 3 14 Hopping Shaft Assy Dismount
45. f OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 3 Dit 2 Service Guide OKIPAGE8w Chapter 1 Configuration 1 1 System Configuration The OKIPAGE 8w consists of a control block a power supply unit and an engine block See Figure 1 1 below ENGINE UNIT Paper Feed Mechanism Electro photographic Processor Main High Voltage Power Supply Board 3 Figure 1 1 Copyright 1998 Okidata Division of America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 4 Dit 2 Service Guide OKIPAGE8w Chapter 1 Configuration 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 High vollage Power Supply Board High valtage Power supply Board P2H Figure 1 2 Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com 5 Service Guide OKIPAGE8w Chapter 1 Configuration 1 3 Specification 1 Type 2 Outside dim
46. f the 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 positive charge and is transferred onto the paper This results in the transfer of the toner image formed on the image drum onto the paper 5 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 6 Fusing The transferred unfused toner image is fused to a sheet of paper by applying heat and pressure to the image Figure 2 5 shown below is a flow for the electro photographic process gt 940 lt busddos jusdoanag fumes Buisn udaa made josuas paa enuey JGO Jajo d peaj ErIUE m 105095 Fade sapt
47. he drum counter when replacing the image drum unit Copyright 1998 Okidata Division of America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 52 OK T Service Guide OKIPAGE8w Chapter 5 Periodical Maintenance 5 2 Cleaning Remove any toner or dirt and clean the circumference and inside of the printer with a waste cloth Caution Do not touch the image drum unit LED lens array and connector block of the LED head 5 2 1 Cleaning the LED Lens Array Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 53 Service Guide OKIPAGE8w Chapter 5 Periodical Maintenance 5 2 1 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 Set the 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 head cleaner Figure 5 2 Copyright 1998 Okidata
48. ler 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 Heater roller 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 drum with static electricity and then returns it to the OPC drum drum Cleaning roller ci I High voltage power supply Transfer roller Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 16 Dit 2 Service Guide OKIPAGE8w Chapter 2 Operation Description 2 6 Paper Jam Detection The OKIPAGE 8w monitors the paper status when the power supply is on and during printing In the following cases the OKIPAGE 8w interrupts the printing process as a paper jam Printing can be recovered by opening the cover removing the jammed paper and closing the cover 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 altho
49. lose it Check the paper To release the error display open the cover then close it Open the cover then remove the jammed paper To clear the error display close the cover Open the cover then remove the jammed paper To clear the error display close the cover If this error occurs frequently see Section 6 5 2 2 2 To clear the error display close the cover If this error occurs frequently replaced the power supply board To release the error display press the reset button on the status monitor of the printer driver Install option RAM or reduce the number of print data To clear the error display press the reset button on the status monitor of the printer driver Simplify the print data format Replace program ROM or the main control board When replacing the main control board also adjust EEPROM data Device Resident RAM 60 30 An error occurred during Replace the main configuration error Check Error resident RAM check control board When replacing the main control board also adjust EEPROM data Device EEPROM Check 60 40 An error occurred during Replace the main configuration error Error EEPROM check control board When replacing the main control board also adjust EEPROM data Device Option RAM Check 60 60 An error occurred during Check the configuration error Error option RAM check connection of the Option RAM PC board If the option RAM PC board is faulty repl
50. mount 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 the heat assy Section 3 3 9 Dismount drive shaft E See Section 3 3 10 Dismount paper sensor E 1 Dismount paper sensor exit 2 a ee IM G M e UM Iu um Dismount toner sensor assy 3 OLE NN JP LES Copyright 1998 Okidata Division of America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 43 Dit 2 Service Guide OKIPAGE8w Chapter 3 Parts Replacement 3 3 17 Base Plate Dismount the upper cover assy See Section 3 3 4 Dismount the base frame See Section 3 3 12 Remove two screws 1 disconnect connector 2 and dismount power supply unit 3 Dismount insulation sheet 4 Remove five screws 5 and dismount main control board 6 Remove screw 7 disconnect connector 8 and dismount P6L board 9 from base plate 10 X Ap e Dismount insulation sheet 1 1 Copyright 1998 Okidata Division of America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 44 OK T Service Guide OK
51. nental ACCod SYS40011 d270P1 UK 405972 71 Australia Insulation SheetB 40401 1 9 Option RAM Board 4059001 1 1 jOptionforOPBp 1 Supply Board P6L Insulation Sheet C 40593101 ER E s F E E 78 21 Copyright 1998 Okidata Division of America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 80 Dit 2 Service Guide OKIPAGE8w Chapter A Local Printing Local Printing 1 The following operation enable the OKIPAGE 8w to print data by itself lt Operation gt With the cover open turn on the AC switch and then close the cover The following print patterns are printed Copyright 1998 Okidata Division of America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 81 Dit 2 Service Guide OKIPAGE8w Chapter B Parallel Interface Parallel Interface 1 Connector e Printer side 36 receptacle Type 57RE 40360 730B D29A Daiichi Denshi or equivalent e Cable side 36 pin plug Type 57 30360 Daiichi Denshi or equivalent 2 Cable e Cable length 6 feet 1 8 m max IEEE std 1284 1994 compliant is recommended for noise prevention 3 Parallel I F signals Pin Signal Name Direction Function Compatible Mode 2 JDATABIT 1
52. ogen lamp or thermostat No Replace the power supply unit Yes Are the CN2 connectors of the power supply unit and main control board connected correctly No Connect the CN2 connectors correctly Yes Replace the main control board Copyright 1998 Okidata Division of America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 61 Service Guide OKIPAGE8w Chapter 6 Troubleshooting Procedures 6 5 3 Image Troubleshooting Procedures for troubleshooting for the cases of abnormal image printouts are explained below Figure 6 3 below shows typical abnormal images Problem Flowchart number Images are light or blurred entirely Figure 6 3 A Dark background density Figure 6 3 B 2 Blank paper is output Figure 6 3 C 3 Vertical block belt black stripe Figure 6 3 D 4 Cyclical defect Figure 6 3 E 5 Print void 6 Poor fusing images are blurred or peeled off when touched by hands 7 Vertical white belt white stripe Figure 6 3 F A Light or blurred images entirely Dark background density C Blank paper A Ill on AB i D Black vertical stripes E Cyclical defect F White vertical belts or streaks v nnnnnni Figure 6 3 Image Problems Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates
53. on 14 30 Ejection in progress Normal operation Request the paper to be Set the requested set in the manual feed paper in the manual mode feed mode The toner amount of the toner cartridge is small Install the image drum or replace the toner sensor The image drum is not installed or the toner sensor is faulty Image drum is nearing end of life Replace the image drum Note Be sure to reset the drum counter after The paper sizes are as follows Executive Letter Legal 14 Legal 13 A4 Ab A6 B5 Monarch DL C5 COM 10 COM 9 Paper size error Buffer overflow Buffer overflow Device configuration error Paper Size Error Paper Input Jam Paper Feed Jam Paper Exit Jam Page Buffer Overflow Print Over Run Program ROM Check Error 30 00 31 00 32 00 33 00 AF 00 40 01 40 10 60 10 Paper of improper size was fed 2 52 64 mm L 15 77 400 56 mm A paper jam occurred when sheets of paper were being supplied A paper jam occurred during paper feeding A paper jam occurred during paper ejection The upper cover is open The page buffer overflowed because there are a large number of print data A print overrun occurred because print data is complicated An error occurred during program ROM check Check the paper Also check whether more than one sheet of paper were fed simultaneously To clear the error display open the cover then c
54. over is open 5 V supply is automatically interrupted to stop high voltage output Voltage Application 1 3 KV Voltage to be applied to charge roller 05 265 V 265 V Voltage to be applied to a developing roller 520 V 0 V Voltage to be applied to a sponge roller 400 V 1 3 KV Voltage to be applied to a cleaning roller 500 V 3 5 KV 750 V Voltage 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 supplies 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 Exit roller Qutlet sensor Heat roller Transfer roller Feed roller Paper sensor Toner sensor Hopping assy roller Manual fead sensor eee w Paper feeding direction 5 Gui NEN State ss feed sensor whether paper was inserted into the wasa Paper exists manual feed sensor section OFF No paper exists Paper sensor Detects the leading part of the paper Monitors ON Paper exists paper feeding OFF No paper exists Output sensor Monitors paper feeding and the paper size ON Paper exists according to the paper sensor arrival and passing OFF No paper exists time Toner sensor Detects the low tone
55. ply Board P2H P6L 31 3 3 6 Top Cover and Flat Cable Assy 32 T 3 3 7 Paper Holder 33 3 3 8 Side Plate M and ldle Gear 34 TRUE 3 3 9 Heat Assy 35 3 3 10 Drive Shaft E Eject and Eject Roller 36 3 3 11 Pressure Roller Back Up Roller 37 3 3 12 Separator Guide 38 3 3 13 Pulse Motor Main 39 3 3 14 Hopping Shaft Assy 40 bees 3 3 15 Resist Roller 41 3 3 16 Paper Sensor E Paper Sensor Exit and Toner 42 Sensor Assy 3 3 17 Base Plate 43 4 Adjustment Table of Contents Page 4 0 Adjustment 44 4 1 Adjustment Types and Functions 45 ped 4 1 1 Printer Driver 46 4 1 2 Engine Maintenance Utility 47 4 2 Adjustment When Replacing a Part 48 4 2 1 Setting LED Head Drive Time 49 4 2 2 Uploading and Downloading EEPROM Data 90 5 Periodical Maintenance 5 1 Periodical Replacement Parts 51 5 2 Cleaning 52 5 2 1 Cleaning the LED Lens Array 53 6 Troubleshooting Procedures 6 1 Troubleshooting Tips 54 6 2 Check Points Before Correcting Image Problems 55 6 3 Notes When Correcting Image Problems 56 6 4 Preparation Before Troubleshooting 57 6 5 Troubleshooting 58 6 5 1 Status Monitor Message List 59 6 5 2 Status Message Troubleshooting 60 6 5 3 Image Troubleshooting 61 1 An image is light or blurred entirely 62 MI 2 Dark background density 63 3 A blank paper is output 64 sod 4 Vertical black belt stripe 65 m 5 Cyclic defect 6
56. r Gear A Pulse motor main Rotate the pulse motor main in the a direction The planetary gear rotates in the a direction dislocating its position in the a direction This causes the planetary gear to 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 At printing Triple gear Transfer gear Regist gear NN Tw Y Idle gear Ty 5 s Planetary gear Hopping gear Gear A Pulse motor main The paper is further advanced in synchronization to the print data 3 Charging Charging is performed by applying DC voltage to the charge roller that is in contact with the surface of the OPC drum 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 h Charge roller prim OPC drum Paper Image drum 5 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 1 The sponge roller negatively charges a toner and applies it to the developing roller Developing blade Charge roller Sponge roller Developing roller PEE OPC
57. r status ON long Toner low OFF short Toner high Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 13 OK T Service Guide OKIPAGE8w Chapter 2 Operation Description 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 electrostatic 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 X 450 NO Ol Josuas paa enut jagar paa 009518 JEJO Jejsut fex es COE ae 000 6 9 0006 e Jaa seyg 01661 8 HJO Jajal 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 rela
58. s classified into the following functional units and displayed Engine Menu Setting Used to display and change engine menu settings Engine Counter Used to display and initialize the engine counter 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 Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 83 Service Guide OKIPAGE8w Chapter C Maintenance Utility Detail of Each Function 4 1 Engine Menu Setting 4 2 Engine Counter 4 3 Printer Status 4 4 Test Print 4 5 Option 4 6 About 4 7 Reload 4 8 Exit Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 84 OK T Service Guide OKIPAGE8w Chapter C Maintenance Utility 4 1 Engine Menu Setting Engine Menu Setting is used to set display and change the following menu items 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
59. t 1998 Okidata Division of America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 10 Dit 2 Service Guide OKIPAGE8w Chapter 2 Operation Description 2 1 Main Control Board The main control board consists of a one chip CPU a program ROM a DRAM an EEPROM a host interface circuit and a mechanism driving circuit The mechanism driving circuit consists of an 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 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 I O 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 e
60. t sunlight Do not touch the fuser because it heats up during operation Do not expose the image drum to light for more than five minutes at room temperature Copyright 1998 Okidata Division of America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 57 Dit 2 Service Guide OKIPAGE8w Chapter 6 Troubleshooting Procedures 6 4 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 8w is equipped with only one LED This LED indicates one of the following status LED Indication Lighting Printing in progress Blink 1 Recoverable alarm Blink 2 Unrecoverable alarm Blink 3 1 The LED blinks at a cycle of 1 second 0 5s ON from data reception to printing end 2 The LED blinks at a cycle of 0 24 second 0 12s ON 8 The LED blinks at a cycle of 0 24 second 012s ON ae EUER _ amber amber ON During suspending data Undefined OFF Flash 1 contents of buffer by processing in OFF LINE Data pressing switch two seconds is left in the buffer Clearing buffer by pressing switch five seconds During receiving data or Undefined Ee S 2 processing data Manual request 2 Undefined K Flash 1 Undefined
61. ta Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com OKI Service Guide OKIPAGE8w Chapter 3 Parts Replacement 3 3 5 High Voltage Power Supply Board P2H P6L Dismount upper cover assy See Section 3 3 4 Remove three screws 1 and remove the cover 2 and draw out high voltage power supply board 3 Disconnect all the cables 4 from high voltage power supply board 3 and dismount high voltage power supply board 3 Caution Note the following when assembling the high voltage power supply board e Mount the high voltage power supply board with top cover assy removed or open e Take care that cable 4 will not interfere with the paper sensor exit when it is connected Paper sensor exit Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 32 OKI Service Guide OKIPAGE8w Chapter 3 Parts Replacement 3 3 6 Top Cover Assy and Flat Cable Assy 1 Dismount the upper cover assy See Section 3 3 4 2 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 4 Disconnect connector CN6 and dismount flat cable assy 3 connector HEAD2
62. 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 duc Ie Raise up roller holder 3 slide hopping shaft assy 1 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 8 Draw out hopping shaft assy 1 to the right and dismount magnet H 6 Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 41 OKI Service Guide OKIPAGE8w Chapter 3 Parts Replacement 3 3 15 Resist Roller 1 Dismount the upper cover assy See Section 3 3 4 2 Dismount Idle gear R 3 and Gear R 4 3 Moveresist roller 1 to the right and dismount it by lifting Two resist bearings 2 also come off at the same time Take care not to lose them Copyright 1998 Okidata Division of America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 42 Dit 2 Service Guide OKIPAGE8w Chapter 3 Parts Replacement 3 3 16 Paper Sensor E Paper Sensor Exit and Toner Sensor Assy Dis
63. tionship between the main motor electromagnetic clutch resist gear drum gear hopping roller is shown in the table below and on the subsequent pages Clutch Normal rotation Hopping 4 LED head The shift and latch registers receive image data from the main control board for each dot line 4 992 LEDs are driven to radiate the image drum 5 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 Uo pau si uays si Jarsoy Agr au uaejedo Buddo uaea a Guiddoy paar dixe 1ESu uaa HD Hja Burugso Usa jajsueg Sa Wg jo uogejo asuanay Z UWE xe Sa eey uaa eyo H7 Haja Burugs o usa Saung Uew paui ssd jo UHE CD ssd Ag augo Buguud Avg Buiddopi E aS a k iri a gh a s tale POTENS TENIS ey Sa eal k iri i a
64. to this material http bpx okidata com Page 62 Dit 2 Service Guide OKIPAGE8w Chapter 6 Troubleshooting Procedures 1 An image is light or blurred entirely Is the toner low Is Toner Low being displayed Yes Supply a toner No 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 HEAD1 HEAD connector of the main control board No Install the LED head correctly Yes Is the contact plate of the transfer roller in correct contact with the high voltage power supply board See Figure 6 4 F 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 No Replace the main control board or high voltage power supply board Copyright 1998 Okidata Division of America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 63 OK T Service Guide OKIPAGE8w Chapter 6 Troubleshooting Procedures 2 Dark background density Has th
65. tridge in the User s Manual Copyright 1998 Okidata Division of America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 67 Dit 2 Service Guide OKIPAGE8w Chapter 6 Troubleshooting Procedures 6 A blank paper is output Is the contact plate of the transfer roller in correct contact with the high voltage power supply board No Contact the contact plate of the transfer roller correctly Yes Replace the transfer roller Has this error been recovered Yes End No Is the terminal of the image drum unit in correct contact with the contact plate See Figure 6 4 A B C D E and Figure 6 5 AB CDE No Contact the terminal of the EP image drum unit correctly Yes Replace the image drum unit Has this error been recovered Yes End Caution After replacing the EP image drum unit reset he drum counter Refer to Replacing the Drum Cartridge in Users Manual No Is the LED head installed correctly Check the CN6 connector the main control board Check the HEAD1 HEAD connector of the main control board No Contact the LED head correctly Yes Replace the LED head Has this error been recovered Yes End Caution Set the LED head drive time when replacing the LED head See Section 4 2 1 No Replace the main control board or high voltage power supply board Copyright 1998 Okidata Division of
66. ugh hopping operation was performed three time Paper feed jam The leading part of the paper does not reach the outlet sensor within a fixed time after it has passed the paper sensor Paper outlet jam 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 L 15 77 400 6 mm Paper size 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 L 15 77 400 6 mm Paper Feed Check List Type of Error Supervisory Reference Value Sensor Paper feed error Electromagnetic 69 clutch ON Paper sensor ON Paper feed jam 1 Paper sensor ON 122 9 Outlet sensor ON Paper size error Paper sensor ON 2 52 64 mm Paper sensor OFF lt 15 77 400 56 mm Paper outlet jam Outlet sensor ON 2 52 64 mm lt L Outlet sensor OFF lt 15 77 400 56 mm Paper feed jam 2 Outlet sensor OFF 121 9 Outlet sensor OFF Unit mm Normal rotation Pulse motor OFF main Reverse rotation Electromagnetic OFF clutch ON 1 Manual feed OFF Sensor ON OFF Paper sensor i ON Outlet sensor M Warm up Paper feed Printing Operation mode Timing Chart for Paper Feed Tray Feed Copyright 1998 Okidata Division of America Inc All rights reserved See the OKIDATA Busin
67. unit correctly Yes Check the gear block Yes Has the paper arrived at the 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 No Check the gear block 2 3 Paper exit jam Does a paper exit jam occur when the power supply is turned on Yes Is the jammed paper on the paper sensor exit Yes Remove the jammed paper No Is the paper sensor exit operating normally No Replace the paper sensor exit Yes Replace the high voltage power supply board No Check the gear block or replace the eject roller 3 Paper size error Is the paper of the specified size being use No Use paper of the specified size 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 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 Yes Replace the high voltage power supply board Paper feeding direction Paper sensor exit o mm E Transfer roller EN Paper sensor E manual feed Paper feeding direction 2 4 Heat assy error Turn the power supply off then on again Does the Halogen lamp of the heat assy go on No Is the Halogen lamp or thermostat disconnected Yes Replace the heat assy Hal
68. xplained in 1 above is valid the EPROM is not mounted For details on short wiring setting see Section 7 2 3 DRAM DRAM is used as resident memory 4 EEPROM EEPROM holds the following data e Menu data e Counter value e Adjustment value 5 Parallel interface The parallel interface receives parallel data from the host it conforms to the IEEE1284 specification Copyright 1998 Okidata Division of America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 11 OK T Service Guide OKIPAGE8w Chapter 2 Operation Description 2 2 Power Supply Unit The power supply unit supplies 5 V and 26 V to the main control board according to 230 VAC 120 VAC Output voltage Application Used to generate a logic circuit and a high voltage used to drive the motor and electromagnetic clutch Copyright 1998 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 12 Dit 2 Service Guide OKIPAGE8w Chapter 2 Operation Description 2 3 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 c
69. y 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 Click the 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 a case use the maintenance utility to perform the following adjustment after replacing the main control board e Setting the LED head drive time Section 4 2 1 e Setting the LED head count OKIPAGE 8w only e Setting specifications ODA OEL INT A INT L Copyright 1998 Okidata Division of America Inc All rights reserved See the OKIDATA Business Partner Exchange BPX for any updates to this material http bpx okidata com Page 51 Service Guide OKIPAGE8w Chapter 5 Periodical Maintenance 5 1 Periodical Replacement Parts Table 5 1 lists the part and unit to be replaced periodically Table 5 1 Routine Replacement Parts Part Name Replacement Time Part to be Checked Simultaneously Toner cartridge Type 6 When Toner Low is displayed Clean LED head Image drum unit Type 6 When Change Drum is displayed Caution Also reset t

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