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Oki OKIPAGE 8iM Maintenance Manual

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OKIPAGE 8iM
LED Page Printer

Maintenance Manual

ODA/OEL
Draft Version
1 / 106
41260201TH Draft

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Summary of Contents for Oki OKIPAGE 8iM

  • Page 1: Maintenance Manual

    OKIPAGE 8iM LED Page Printer Maintenance Manual ODA/OEL Draft Version 1 / 106 41260201TH Draft...
  • Page 2 Corrected items Person in Rev.No. Date change Page Description of change ISSUE E2 Nagahashi 41260201TH Draft...
  • Page 3 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. 41260201TH Draft...

  • Page 4: Table Of Contents

    CONTENTS CONFIGURATION ..................6 1.1 System Configuration ................6 1.2 Printer Configuration ................. 7 1.3 Specification ..................... 8 1.4 Safety Standards ..................10 1.4.1 Certification Label .................... 10 1.4.2 Warning Label ....................10 OPERATION DESCRIPTION ................. 11 2.1 Main Control Board ................... 13 2.2 Power Supply Unit ..................
  • Page 5 4.2 Adjustment When Replacing a Part ............59 4.2.1 Setting LED Head Drive Time ................. 59 4.2.2 Uploading and Downloading EEPROM Data ..........60 PERIODICAL MAINTENANCE ..............61 5.1 Periodical Replacement Parts ..............61 5.2 Cleaning....................61 5.2.1 Cleaning the LED Lens Array ................61 TROUBLESHOOTING PROCEDURES ............

  • Page 6: Configuration

    CONFIGURATION System Configuration The OKIPAGE 8iM 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-photographic Processor Main High-Voltage Power Supply Board Sub High-Voltage Main Control Board...

  • Page 7: Printer Configuration

    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 (two Boards) • Power Supply Unit Figure 1-2 is the configuration of the printer unit. Upper Cover Assy I/D Unit (Type 6) Top Cover Assy...

  • Page 8: Specification

    Specification (1) Type Desktop (2) Outside dimensions Height 6.7” (170 mm) (excludes protruding Width 12.8” (324 mm) portion) Depth 8.1” (207 mm) (3) Weight 4.2 kg (with Image Drum Cartridge and Toner Cartridge) (4) Development method Dry non-magnetic development system Exposure method LED stationary head (5) Paper used...
  • Page 9 –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 8iM being packed; they are valid for one year. (13) Noise During operation: Avg. 50 dB (A), slow (without peak sounds)

  • Page 10: Safety Standards

    Safety Standards 1.4.1 Certification Label The safety certification label is affixed to the following location of the OKIPAGE 8iM 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.

  • Page 11: Operation Description

    OPERATION DESCRIPTION The OKIPAGE 8iM consists of a main control board, two high-voltage power supply board, a power supply unit, and an electro-photographic processor. The OKIPAGE 8iM receives print data from a higher-level interface and sequentially stores it in memory. The OKIPAGE 8iM decodes and edits the received data while storing print data from the interface in memory.
  • Page 12 Motor PLUNGER LED HEAD HEAD1 HEAD2 EEPROM Motor Driver MTD2005F EPROM 64KB LS373 Serial I/F (nX8) Parallel Printer DRAM DRAM Bus Cable (Data : 4) (Address : 11) LS07 DS8925 Macintosh 16MHz HC125 +26V CN10 High Voltage Power Unit High Voltage Power Unit Power Supply Unit ID Unit Figure 2-1 Block Diagram...

  • Page 13: Main Control Board

    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 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, 16-MHz clock) incorporating mask ROM and CPU peripheral devices.

  • Page 14: Power Supply Unit

    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 +5 V Used to generate a logic circuit and a high voltage. +26V Used to drive the motor and electromagnetic clutch.
  • Page 15 (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 Outlet sensor Heat roller...

  • Page 16: Electro-Photographic Processor

    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.
  • Page 17 17 /106 41260201TH Draft...
  • Page 18 (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.
  • Page 19 19 /106 41260201TH Draft...

  • Page 20: Electro-Photographic Process

    Electro-Photographic Process (1) Electro-photographic process The electro-photographic process is outlined below. 1 Charging The surface of the OPC drum is charged negatively and uniformly by applying the DC voltage to the CH roller. 2 Exposure Light emitted from the LED head irradiates the negatively charged surface of the OPC drum.
  • Page 21 Control signal LED head Power supply Paper delivery Charge roller Exposure Power Power Charging supply supply Paper eject Cleaning Developing Toner Paper feeding Cleaning Development roller roller roller cartridge Outlet sensor Paper Paper Fusing Transfer supply holder Paper sensor Manual feed section Back-up Power...

  • Page 22: Explanation Of Each Process Operation

    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 Clutch plate Hopping gear Coil Magnetic substance plate...
  • Page 23 (2) Printing and warm-up At warm-up Triple gear Transfer gear Regist gear Idle gear Planetary gear a" Hopping gear 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”...
  • Page 24 (3) Charging Charging is performed by applying DC voltage to the charge roller that is in contact with the surface of the OPC drum. High- voltage Charge roller power supply 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.
  • Page 25 (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.
  • Page 26 (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.

  • Page 27: Paper Jam Detection

    Paper Jam Detection The OKIPAGE 8iM monitors the paper status when the power supply is on and during printing. In the following cases, the OKIPAGE 8iM interrupts the printing process as a paper jam. Printing can be recovered by opening the cover, removing the jammed paper, and closing the cover.
  • Page 28 Normal rotation Pulse motor (main) Reverse rotation Electromagnetic clutch Manual feed sensor Paper sensor Outlet sensor Warm-up Paper feed Printing Operation mode Timing Chart for Paper Feed (Tray Feed) 28 /106 41260201TH Draft...

  • Page 29: Toner Low Detection

    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 Hardware Configuration of Toner Sensor 29 /106 41260201TH Draft...
  • Page 30 • Toner detection method (1) Toner sensor monitoring conditions are shown in the figure below. Toner sensor Magnet draw-in 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.

  • Page 31: Cover Open

    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.
  • Page 32 Normal printing Abnormal toner sensor waveform Normal printing OKIPAGE 8iM I/D Unit not Installed / Toner Sensor Error Draft for specification 1. Toner sensor error/I/D Unit not Installed state should not be stored in the EEPROM. 2. A shift to I/D Unit not Installed and Toner Sensor Error shall be made at cover open or close.
  • Page 33 33 /106 41260201TH Draft...

  • Page 34: Parts Replacement

    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.
  • Page 35 [Maintenance Tools] Table 3-1 lists the maintenance tools necessary for parts replacement. Table 3-1 Maintenance Tools Maintenance Tools Q'ty Remarks No. 1-100 Philips 2~2.5 mm screw screwdriver No. 2-100 Philips 3~5 mm screw screwdriver No. 3-100 Philips screwdriver No. 5-200 screwdriver Digital multimeter (tester) Pliers Handy cleaner...

  • Page 36: Parts Layout

    Parts Layout This section explains the layout of main parts. [Upper Cover Assy] Spur gear (A) Guide side (R) Guide side (L) Hopper plate Upper cover Figure 3-1 36 /106 41260201TH Draft...
  • Page 37 [Base Frame Unit] LED head Flat cable assy Head spring Top cover assy Pressure roller (B) Paper guide (R) (Back up roller) Heat assy Paper guide (L) Transfer roller Registration roller Side plate M Idle gear heat Paper Hopper holder spring Drive shaft E (eject) Tension plate...
  • Page 38 [Base Plate Unit] Power supply unit Main control board High Voltage Power Supply board P6L Base plate assy Figure 3-3 38 /106 41260201TH Draft...

  • Page 39: Replacing Parts

    Replacing Parts This section explains how to replace parts and assemblies. 3.3.1 Hopper Plate (1) Remove two claws and dismount hopper plate 1. 39 /106 41260201TH Draft...

  • Page 40: Led Head And Head Spring

    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. (3) Dismount two head springs 4. 40 /106 41260201TH Draft...

  • Page 41: Transfer Roller

    3.3.3 Transfer Roller (1) Open top cover assy 1 and dismount I/D unit (Type 6) 2. (2) Remove the washer TR 6 (make sure to do it) 1 1 1 1 1 : Insert a flat-tip driver between the claw and the guide gear T 7 in a way of pushing gear T 5 so that it hits the left side and rotate the driver.

  • Page 42: How To Remove Cover Upper Assy

    3.3.4 How to remove Cover Upper Assy (1) Unscrew screws on the rear part. (2) Open Cover Top Assy. Inserting a screwdriver head into a slot marked with on the Plate Base edge, turn the screwdriver and lift Cover Upper Assy upward. Repeat the same procedure for another slot on the edge.

  • Page 43: Upper Cover Assy

    3.3.5 Upper Cover Assy (1) Turn off the power switch and unplug the AC cord from the AC socket. (2) Disconnect interface cable 1. (3) Open top cover assy 2 and dismount I/D unit (Type 6) 3. (4) Move paper guide (L) 4 and paper guide (R) 5 on the rear of the printer to the center. (5) Remove two front claws of upper cover assy 6 and lift upper cover assy 6.

  • Page 44: High-Voltage Power Supply Board(P2H) 3

    3.3.6 High-Voltage Power Supply Board (P2H) (1) Dismount upper cover assy. (See Section 3.3.5.) (2) Remove three screws 1 and remove the cover 2 and draw out high-voltage power supply board(P2H) 3. (3) Disconnect all the cables 4 from high-voltage power supply board(P2H) 3 and dismount high-voltage power supply board(P2H) 3.

  • Page 45: Top Cover Assy And Flat Cable Assy

    3.3.7 Top Cover Assy and Flat Cable Assy (1) Dismount the upper cover assy. (See Section 3.3.5.) (2) Dismount the LED head. (See Section 3.3.2.) (3) Press the right clamp outward and dismount the engagement and top cover assy 1. (Tension spring 2 also comes off at the same time.) (4) Disconnect connector HEAD1, HEAD2 on the control board and dismount flat cable assy 3.

  • Page 46: Paper Holder

    3.3.8 Paper Holder (1) Dismount the upper cover assy. (See Section 3.3.5.) (2) Dismount paper holder 1. (3) Unlock and dismount paper guide (L) 2 and paper guide (R) 3. (4) Remove the claw and dismount hopper spring 4. (5) Remove the claw and dismount stopper spring 5. 46 /106 41260201TH Draft...

  • Page 47: Side Plate M And Idle Gear

    3.3.9 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 3.3.5.) (2) Remove two screws 1 and two claws, then dismount plate side M2. (3) Dismount earth plate 3, two idle gears P 4, idle gear M5, idle gear 3R6, idle gear 2R7, idle gear heat 8, regist bearing 9 and bearing gear 0.

  • Page 48: 3.3.10 Heat Assy

    3.3.10 Heat Assy This section explains how to dismount the heat assy and parts in the assy. <Dismounting the heat assy> (1) Dismount the upper cover assy. (See Section 3.3.5.) (2) Dismount the high-voltage power supply board (P2H). (See Section 3.3.6.) (3) Remove two screws 1, disconnect connector 2, and dismount heat assy 3.

  • Page 49: 3.3.11 Drive Shaft E (Eject) And Eject Roller

    3.3.11 Drive Shaft E (Eject) and Eject Roller (1) Dismount the upper cover assy. (See Section 3.3.5.) (2) Dismount top cover assy. (See Section 3.3.7.) (3) Remove two screws 1 from heat assy (Section3.3.10), lift the heat assy, and dismount idle gear E (A) 2 and idle gear E (B) 3.

  • Page 50: Pressure Roller B (Back Up Roller)

    3.3.12 Pressure Roller B (Back Up Roller) (1) Dismount the upper cover assy. (See Section 3.3.5.) (2) Dismount the high-voltage power supply board (P2H). (See Section 3.3.6.) (3) Dismount the heat assy. (See Section 3.3.10.) (4) Dismount the engagement with the left ground, then pressure roller B1. (Two bearing BUs 2 and two bias springs 3 also come off at the same time.) 50 /106 41260201TH Draft...

  • Page 51: 3.3.13 Separator Guide

    3.3.13 Separator Guide (1) Dismount the upper cover assy. (See Section 3.3.5.) (2) Dismount the high-voltage power supply board (P2H). (See Section 3.3.6.) (3) Remove four screws 1. (4) Dismount inlet 2 from base frame 3. <Dismounting inlet 2> 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.
  • Page 52 <Dismount Inlet> Screw driver <Disconnecting Connector> (-) Screw driver Clamp lever <Disconnecting Connector> 52/106 41260201TH Draft...

  • Page 53: Pulse Motor (Main)

    3.3.14 Pulse Motor (Main) (1) Dismount the upper cover assy. (See Section 3.3.5.) (2) Dismount the high-voltage power supply board (P2H). (See Section 3.3.6.) (3) Dismount side plate M. (See Section 3.3.9.) (4) Dismount the base frame. (See Section 3.3.13.) (5) Remove two screws 1 and dismount pulse motor (main) 2.

  • Page 54: 3.3.15 Hopping Shaft Assy

    3.3.15 Hopping Shaft Assy (1) Dismount the upper cover assy. (See Section 3.3.5.) (2) Dismount the high-voltage power supply board (P2H). (See Section 3.3.6.) (3) Dismount the base frame. (See Section 3.3.13.) (4) Dismount the paper holder assy. (See Section 3.3.8.) (5) Dismount the sheet guide.

  • Page 55: 3.3.16 Regist Roller

    3.3.16 Regist Roller (1) Dismount the upper cover assy. (See Section 3.3.5.) (2) Dismount Idle gear R 3 and Gear R 4. (3) Move regist roller 1 to the right and dismount it by lifting. (Two regist bearings 2 also come off at the same time.

  • Page 56: 3.3.17 Paper Sensor E, Paper Sensor Exit And Toner Sensor Assy

    3.3.17 Paper Sensor E, Paper Sensor Exit and Toner Sensor Assy (1) Dismount the upper cover assy. (See Section 3.3.5.) (2) Dismount the high-voltage power supply board (P2H). (See Section 3.3.6.) (3) Dismount the base frame. (See Section 3.3.13.) (4) Dismount the paper holder assy. (See Section 3.3.8.) (5) Dismount the sheet guide.

  • Page 57: 3.3.18 Base Plate

    3.3.18 Base Plate (1) Dismount the upper cover assy. (See Section 3.3.5.) (2) Dismount the base frame. (See Section 3.3.13.) (3) Remove two screws 1, disconnect connector 2, and dismount power supply unit 3. (4) Dismount insulation sheet 4. (5) Remove five screws 5, dismount insulation sheet 6 and dismount main control board 7. (6) Dismount insulation sheet 8.

  • Page 58: Adjustment

    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.

  • Page 59: Adjustment When Replacing A Part

    Adjustment When Replacing a Part The table below lists the parts that requires adjustment when they are replaced. Part to be Replaced Adjustment Set the LED head drive time. LED head Set the LED Head Width Set the LED Head Wire Set the Head type EP unit Reset the drum counter.

  • Page 60: Uploading And Downloading Eeprom Data

    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. (See APPENDIX E) 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 utility.

  • Page 61: Periodical Maintenance

    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 Part Name Replacement Time Remarks Simultaneously Toner cartridge (Type 6) When "Toner Low" is displayed. LED head Consumables EP unit (Type 6)
  • Page 62 (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 lens array LED head cleaner Figure 5-2...

  • Page 63: Troubleshooting Procedures

    (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 8iM 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 8iM is equipped with only one LED.

  • Page 64: Troubleshooting

    Troubleshooting If a trouble occurs in the OKIPAGE 8iM, troubleshoot according to the following procedures: Trouble Perform detailed Troubleshoot according to Trouble indicated by troubleshooting according "Status Monitor Message List" the message displayed to the troubleshooting flow. (See Section 6.5.1.) on the status monitor.
  • Page 65 Table 6-1 OPEL Code Category Status Message Display Content Remedy Normal status Warming Up 18 00 Warming-up status Normal operation Online (Ready) 00 10 Online (ready) status Normal operation 00 20 Power save status Power Save Mode Normal operation Toner Low 10 00 The toner amount of the toner cartridge is small.
  • Page 66 Table 6-1 (Cont'd) OPEL Code Category Status Message Display Content Remedy Paper size error Paper Size Error 30 00 Paper of improper size was fed. Check the paper. Also check whether more than one sheet of 2.52" (64 mm) L 15.77" (400.56 mm) paper were fed simultaneously.
  • Page 67 Table 6-1 (Cont'd) Category Status Message OPEL Code OPEL Code Display Content Category Status Message Display Content Remedy 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 4.2.4.) Option RAM Check Error 60 60...

  • Page 68: 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 8iM malfunctions after the power supply has been turned on. Jam error Paper input jam Paper feed jam...

  • Page 69: The Okipage 8Im Malfunctions After The Power Supply Has Been Turned On

    The OKIPAGE 8iM 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.

  • Page 70: Jam Error

    [JAM error] Paper input jam • Does a paper input jam occur when the power supply is turned on? • Yes Is the jammed paper on paper sensor? • Yes Remove the jammed paper. • No Is paper sensor (manual feed/paper) operating normally? •...

  • Page 71: Paper Feed Jam

    [JAM error] Paper feed jam • Does a paper feed jam occur when the power supply is turned on? • Yes Is the jammed paper on paper sensor (paper/outlet)? • Yes Remove the jammed paper. • No Is paper sensor (outlet/paper) operating normally? •...

  • Page 72: Paper Size Error

    Paper size error • Is the paper of the specified size being use? • No Use paper of the specified size. • Yes Is paper sensor (paper) operating normally? • No Replace paper sensor (paper) or clean the inlet sensor on the high-voltage power supply board(P2H).
  • Page 73 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. • No Replace the power supply unit.

  • Page 74: Image Troubleshooting

    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.
  • Page 75 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? •...
  • Page 76 Dark background density • Has the OPC drum being exposed to external light? • Yes Set the OPC drum in the OKIPAGE 8iM and wait for about 30 minutes. • No Is the heat roller of the heat assy dirty? •...

  • Page 77: Cyclic Defect

    Vertical black belt/stripe • Replace the I/D unit. • Has this error been recovered? • Yes Caution: After replacing the I/D unit, reset the drum counter. (Refer to "Replacing the Drum Cartridge" in "User's Manual".) • No Replace the LED head. •...
  • Page 78 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. •...
  • Page 79 Poor fusing • Is the specified paper being used? • No Use the specified paper. (xerox 4200 (20 lbs)) • 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.
  • Page 80 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(P2H)? (See Figure 6-4 E .) •...
  • Page 81 Contents A : Toner Supply Roller B : Developing Roller C : Charge Roller D : Cleaning Roller E : Transfer Roller F : Heat Roller Figure 6-4 81 / 106 41260201TH Draft...
  • Page 82 Contents A : Toner Supply Roller B : Developing Roller C : Charge Roller D : Cleaning Roller E : Ground (Drum) Figure 6-5 82 / 106 41260201TH Draft...

  • Page 83: Wiring Diagram

    +400V/–1350V High-Voltage CB2PWM CB1PWM Power Supply Board STB-N PDATA1-P PDATA2-P PDATA3-P PDATA4-P PDATA5-P PDATA6-P PDATA7-P CV0PN-N THERM PDATA8-P LED-P 21 TNRSNS-N ACK-N SDB2-P BUSY-P Thermistor PSIN-N PE-P SDBI-P SEL-P AUTOFEED-P High-Voltage WRSNS-N Charge Roller OPC Drum Transfer Roller DBPWM-P Power Supply Board Developing Roller TEMP TR-VSEN...

  • Page 84: Pcb Layout

    PCB Layout 7.2.1 Main Control Board (HBX PCB) CN10 84 / 106 41260201TH Draft...

  • Page 85: High-Voltage Power Supply Board

    7.2.2 High-Voltage Power Supply Board CVSW 85 / 106 41260201TH Draft...

  • Page 86: Parts List

    PARTS LIST Figure 8-1 Cover Assy Upper 86 /106 41260201TH Draft...
  • Page 87 Table 8-1 Cover Assy Upper Part Name Part No. Q'ty Remarks Cover-Upper 2 40412602 Blueberry Cover-Upper 2 40412603 strawberry Cover-Upper 2 40412604 Tangerine Cover-Upper 2 40412605 Lime Cover-Upper 2 40412606 Grape Lens 2 40413201 Guide Side (L) 2PP4128-1256P001 Guide Side (R) 2PP4128-1257P001 Gear Spur (A) 4PP4128-1260P001...
  • Page 88 Figure 8-2 Base Frame Unit 88 / 106 41260201TH Draft...
  • Page 89 Table 8-2 Base Frame Unit Part Name Part No. Q'ty Remarks Frame Unit Assy 40593201 High-Voltage Power Supply Board P2H 40607401 Paper Sensor E 3PP4083-1191P001 Separator Assy 40721301 Compression Spring S 40781701 Toner Sensor Assy 3PA4083-1193G001 Pulse Motor 40496401 Ep Unit (Type 6) Consumable Toner Cartridge Unit (Type 6) Consumable...
  • Page 90 Part Name Part No. Q'ty Remarks Paper Holder 1PP4083-1231P001 Paper Sensor Exit 3PP4083-1192P001 Hopper Spring 4PP4083-1247P001 Top Cover Assy 40592119 Head Spring 4PP4083-6168P001 LED Head 40521101 Flat Cable Assy 40591201 120V Flat Cable Assy 40591202 230V Bias Spring (R) (Back Up Roller) 4PP4083-1137P001 Sheet Guide 40562401...
  • Page 91 Figure 8-3 Base Plate Unit 91 / 106 41260201TH Draft...
  • Page 92 Table 8-3 Base Plate Unit Part Name Part No. Q'ty Remarks Base Plate Assy 40592201 Insulation Sheet A 40722501 Power Supply Unit 40455701 120V Power Supply Unit 40455801 230V Main Control Board (HBX) 40535803 Program ROM 40780101 AC Cord 3YS4011-1315P001 AC Cord 3YS4011-1266P001 Continental...

  • Page 93: Appendix Alocal Printing/ Demo

    APPENDIX A LOCAL PRINTING/ DEMO PAGE PRINTING The following operation enables the OKIPAGE 8iM to print data by itself. With the cover open, turn on the AC switch and then close the cover. The following print patterns are printed. Draft...
  • Page 94 APPENDIX B PARALLEL INTERFACE (1) Connector • Printer side 36-pin receptacle Type: 57-40360 (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. (IEEE std 1284-1994 compliant is recommended for noise prevention.) Note : Cable is not supplied.

  • Page 95: Appendix Bparallel Interface

    DATA BIT - 6 DATA BIT - 7 DATA BIT - 8 ACKNOWLEDGE Completion of input data reception BUSY The OKIPAGE 8iM is not ready to receive data. PAPER END Paper end detection SELECT Select state (Online) AUTOFD Carriage return control...
  • Page 96 (4) Signal level • LOW 0 V to +0.8 V • HIGH +2.4 V to 5.0 V (5) Interface circuit a) Receiving circuit Sending circuit 3.3K (Open Collector) R = 3.3K (1.0-K STROBE, I-PRIME) (6) Timing charts a) Data receiving timing (compatible mode) PARALLEL DATA (DATA BITs 1 to 8) 0.5 s min.

  • Page 97: Appendix Cmacintosh Interface

    APPENDIX C MACINTOSH INTERFACE 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) Note: Cable is not supplied.
  • Page 98 5) Connector Pin Arrangment 6) Modes RS422 Synchronous serial 98 / 106 41260201TH Draft...

  • Page 99: Appendix Dusb Interface (By Usb Printer Cable)

    APPENDIX D USB INTERFACE (BY USB Printer Cable) 1) Connector • 1284 side 36-pin plug • USB side Series A type plug 2) Cable USB Printer Cable made by In-System Design, Inc. 3) Interface signal Pin No. Signal Name Description VBus 4) Timing chart and level One-Bit Time...

  • Page 100: Appendix Emaintenance Utility Manual

    APPENDIX E MAINTENANCE UTILITY MANUAL Overview This manual describes the details of GUI for the maintenance utility corresponding to OKIPAGE 8iM. However, As Disable section is not used in this printer, its explanation will be omitted. Main Menu Dialog The following figure is the dialog window which will be displayed at maintenance utility start-up. You can use this window to set the engine menu, display or initialize each counter value and show this printer’s version information.
  • Page 101 Engine Menu Setting Group This area shows the engine menu, the settings of which can be changed. The details of each item are as follows. <Print Position> Shown message Print Position Setting item Corrects the start position of print. Setting range -4.00mm ~ +3.5mm F/W default 0.00mm...
  • Page 102 Engine Counter Reset Group Indicates the current value for each counter in this printer. And initiates each counter. The followings are the details for each item. <Drum Count> Displays the number of rotations in build-in EP drum. <Total Drum Count> Displays the total number of rotations after shipment in the EP drum.
  • Page 103 If the printer becomes other than manual feed mode, the following messages will appear. <Print File> button This button transmits a test printing file. When pressing the Print File button, the select dialog box will open as shown in the following figure (Windows API), ready for the entrance of printing file from the operator.
  • Page 104 Option button This button rewrites the EEPROM in this printer. Option menu items will be displayed classified into the following 3 types in functional unit. (1) EEPROM Operation displays and changes the engine menu settings. (2) H/W Check performs a H/W check for the printer. (3) Product Set changes the model name of printer, destination for shipment and names of available printers...
  • Page 105 <RAM Check> button Sends a RAM Check command to check the free space of the memory which is used for raster and receiving buffer including optional RAM. This application, after sending a RAM Check command, will wait for the RAM check end response from the printer with the dialog box opened.
  • Page 106 About button Displays the version number of maintenance utility and virtual device driver and the information of firmware for this printer. Exit button Terminates the maintenance utility. 106 / 106 41260201TH Draft...

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