Oki OKIPAGE 4w Maintenance Manual
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Oki OKIPAGE 4w Maintenance Manual

Oki OKIPAGE 4w Maintenance Manual

Led page printer
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OKIPAGE 4w
LED Page Printer

Maintenance Manual

All specifications are subject to change without notice.

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  • Page 1: Maintenance Manual

    ¡ OKIPAGE 4w LED Page Printer Maintenance Manual All specifications are subject to change without notice.
  • Page 2 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.

  • Page 3: Table Of Contents

    CONTENTS 1. CONFIGURATION ..................1 - 1 1.1 System Configuration ................ 1 - 1 1.2. Printer Configuration ................1 - 2 1.3 Specification ..................1 - 3 1.4 Safety Standards ................1 - 5 1.4.1 Certification Label ..................1 - 5 1.4.2 Warning Label ..................
  • Page 4 4. ADJUSTMENT ................... 4 - 1 4.1 Adjustment Types and Functions ............4 - 1 4.1.1 Printer Driver ................... 4 - 1 4.1.2 Engine Maintenance Utility ..............4 - 2 4.2 Adjustment When Replacing a Part ........... 4 - 2 4.2.1 Setting LED Head Drive Time ..............

  • Page 5: Configuration

    1. CONFIGURATION...

  • Page 6: System Configuration

    CONFIGURATION System Configuration The OKIPAGE 4w 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 High-Voltage Power Supply Board Main Control Board Power Supply Unit...

  • 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 • Power Supply Unit Figure 1-2 is the configuration of the printer unit. Upper Cover Assy EP Unit Top Cover Assy...

  • Page 8: Specification

    Specification (1) Type Desktop (2) Outside dimensions Height 5.9” (150 mm) (excludes protruding Width 12.2” (310 mm) portion) Depth 7.5” (191 mm) (3) Weight 3.8 kg (4) Development method Dry non-magnetic development system Exposure method LED stationary head (5) Paper used <Type>...
  • Page 9 (12) Temperature and humidity Temperature Humidity During operation 10 to 32 ˚C 20 to 80% RH (relative humidity) In storage –10 to +43 ˚C 10 to 90% RH (relative humidity) No condensation is permissible. Caution: Temperature and humidity in storage are measured with the PN212 being packed;...

  • Page 10: Safety Standards

    Safety Standards 1.4.1 Certification Label The safety certification label is affixed to the following location of the OKIPAGE 4w: /OKI-INT 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...
  • Page 12 OPERATION DESCRIPTION The OKIPAGE 4w consists of a main control board, a high-voltage power supply board, a power supply unit, and an electro-photographic processor. The OKIPAGE 4w receives print data from a higher-level interface and sequentially stores it in memory. The OKIPAGE 4w decodes and edits the received data while storing print data from the interface in memory.
  • Page 13 2 - 2...

  • Page 14: 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, 10-MHz clock) incorporating mask ROM and CPU peripheral devices.

  • Page 15: Power Supply Unit

    Power Supply Unit The power supply unit supplies +5 V and +24 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. +24 V Used to drive the motor and electromagnetic clutch.
  • Page 16 (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 17: 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 18 2 - 7...
  • Page 19 (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, regist gear, drum gear, hopping roller is shown in the table below and on the subsequent pages.
  • Page 20 2 - 9...

  • Page 21: 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 22 2 - 11...

  • Page 23: 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 Hopping gear Clutch plate Coil Magnetic substance plate...
  • Page 24 (2) Printing and warm-up At warm-up Triple gear Transfer gear Resist 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 25 (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 power Charge roller 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 26 (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 27 (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.
  • Page 28 (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 29: Paper Jam Detection

    Paper Jam Detection The OKIPAGE 4w monitors the paper status when the power supply is on and during printing. In the following cases, the OKIPAGE 4w 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 30 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) 2 - 19...

  • Page 31: 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 Photointerrupter Hardware Configuration of Toner Sensor • Toner detection method (1) Toner sensor monitoring conditions are shown in the figure below.

  • Page 32: Cover Open

    (2) The basic rotation cycle of the toner sensor is as follows: T time Basic rotation cycle of toner sensor 4.9 sec. Toner low time t1 > 1.2 sec. Toner full time 1.2 sec. > t1 > 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.

  • Page 33: Parts Replacement

    PARTS REPLACEMENT...

  • Page 34: Precautions For 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] Extend plate Spur gear (A) Guide slide (R) Guide slide (L) Hopper plate Upper cover Figure 3-1 3 - 3...

  • Page 37: Base Frame Unit

    [Base Frame Unit] Flat cable assy LED head Head spring Top cover assy Pressure roller (B) (Back up roller) Paper guide (R) Heat assy Transfer roller Paper guide (L) Resistration roller Idle gear heat Hopper spring Paper holder Drive shaft E (eject) Tension plate Slide plate M...

  • Page 38: Base Plate Unit

    [Base Plate Unit] Power supply unit Main control board Base plate assy Figure 3-3 3 - 5...

  • Page 39: Replacing Parts

    Replacing Parts This section explains how to replace parts and assemblies. 3.3.1 Extend Plate (1) Remove two claws and dismount hopper plate assy 1. (2) Dismount extend plate 3 from hopper plate 2. 3 - 6...

  • 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 and FG cable (3) Dismount two head springs 4. Clamp 3 - 7...

  • Page 41: Transfer Roller

    3.3.3 Transfer Roller (1) Open top cover assy 1 and dismount EP unit 2. (2) Remove the right claw. Then, dismount transfer roller 3, two registration bearings 4, and gear T5. Label 3 - 8...

  • Page 42: Upper Cover Assy

    3.3.4 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 EP unit 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 two rear screws A and lift upper cover assy 6.

  • Page 43: High-Voltage Power Supply Board

    3.3.5 High-Voltage Power Supply Board (1) Dismount upper cover assy. (See Section 3.3.4.) (2) Remove three screws 1 and draw out high-voltage power supply board 2. (3) Disconnect all the cables 3 from high-voltage power supply board 2 and dismount high- voltage power supply board 2.

  • Page 44: Top Cover Assy And Flat Cable Assy

    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.) (3) 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.

  • Page 45: Paper Holder

    3.3.7 Paper Holder (1) Dismount the upper cover assy. (See Section 3.3.4.) (2) Dismount paper holder 1. (3) Unlock and dismount paper guide (L) 2 and paper guide (R) 3. (4) Remove the claw and dismount hopper spring 4. (5) Remove the claw and dismount stopper spring 5. 3 - 12...

  • Page 46: Side Plate M And Idle Gear

    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 M2. (3) Dismount earth plate 3, two idle gears P4, idle gear M5, idle gear 3R6, idle gear 2R7, idle gear heat 8, idle gear R9, and gear R0.

  • Page 47: Registration Roller

    3.3.9 Registration Roller (1) Dismount the upper cover assy. (See Section 3.3.4.) (2) Move registration roller 1 to the right and dismount it by lifting. (Two registration bearings 2 also come off at the same time. Take care not to lose them.) 3 - 14...

  • Page 48: 3.3.10 Drive Shaft E (Eject) And Eject Roller

    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 3.3.6.) (3) Remove two screws 1 from cover head assy (Section 3.3.11), lift the heat assy, and dismount idle gear E (A) 2 and idle gear E (B) 3.

  • Page 49: 3.3.11 Heat Assy

    3.3.11 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 3.3.4.) (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.
  • Page 50 3 - 17...
  • Page 51 Voltage display side 3 - 18...

  • Page 52: Pressure Roller B (Back Up Roller)

    3.3.12 Pressure Roller B (Back Up Roller) (1) Dismount the upper cover assy. (See Section 3.3.4.) (2) Dismount the high-voltage power supply board. (See Section 3.3.5.) (3) Dismount the heat assy. (See Section 3.3.11.) (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.) 3 - 19...

  • Page 53: 3.3.13 Separator Guide

    3.3.13 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 five 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 54 <Dismounting Inlet> Screw driver <Disconnecting Connector> (–) Screw driver Clamp lever 3 - 21...

  • Page 55: Pulse Motor (Main)

    3.3.14 Pulse Motor (Main) (1) Dismount the upper cover assy. (See Section 3.3.4.) (2) Dismount the high-voltage power supply board. (See Section 3.3.5.) (3) Dismount side plate M. (See Section 3.3.8.) (4) Dismount the base frame. (See Section 3.3.13.) (5) Remove two screws 1 and dismount pulse motor (main) 2. 3 - 22...

  • Page 56: 3.3.15 Hopping Shaft Assy

    3.3.15 Hopping Shaft Assy (1) Dismount the upper cover assy. (See Section 3.3.4.) (2) Dismount the high-voltage power supply board. (See Section 3.3.5.) (3) Dismount the base frame. (See Section 3.3.13.) (4) Dismount the paper holder assy. (See Section 3.3.7.) (5) Dismount the sheet guide.

  • Page 57: 3.3.16 Paper Sensor E, Paper Sensor Exit And Toner Sensor Assy

    3.3.16 Paper Sensor E, Paper Sensor Exit and Toner Sensor Assy (1) Dismount the upper cover assy. (See Section 3.3.4.) (2) Dismount the high-voltage power supply board. (See Section 3.3.5.) (3) Dismount the base frame. (See Section 3.3.13.) (4) Dismount the paper holder assy. (See Section 3.3.7.) (5) Dismount the sheet guide.

  • Page 58: 3.3.17 Base Plate

    3.3.17 Base Plate (1) Dismount the upper cover assy. (See Section 3.3.4.) (2) Dismount the base frame. (See Section 3.3.13.) (3) Remove two screws 1, disconnect connector 2, and dismount power supply unit 3. (4) Dismount insulation sheet 4. (5) Remove two screws 5 and dismount main control board 6 from base plate 7. 3 - 25...

  • Page 59: Adjustment

    ADJUSTMENT...

  • Page 60: Adjustment Types And Functions

    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 61: Engine Maintenance Utility

    4.1.2 Engine Maintenance Utility See Appendix C. 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 dot count. EP unit Reset the drum counter.

  • Page 62: Setting The Led Head Dot Count

    4.2.2 Setting the LED Head Dot Count There are two types of LED head dot count. Use the following label to identify these types. Use “LED Head Width” in the engine menu table to set the LED head dot count. (See Figure 4-2.) •...

  • Page 63: Uploading And Downloading Eeprom Data

    4.2.3 Uploading and Downloading EEPROM Data When the main control board is replaced, EEPROM data must be reflected on a new main control board. Use “EEPROM Operations” in the option tab of the maintenance utility to reflect EEPROM data on the new main control board. (See Figure 4-4.) 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 64: Periodical Maintenance

    PERIODICAL MAINTENANCE...

  • Page 65: Periodical Replacement Parts

    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 When "Toner Low" is displayed. LED head Consumables EP unit When "Change Drum"...
  • Page 66 (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 67: Troubleshooting Procedures

    TROUBLESHOOTING PROCEDURES...

  • Page 68: Troubleshooting Tips

    (4) Do not expose the image drum to light for more than five minutes at room temperature. Preparation Before Troubleshooting (1) Message display The failure status of the OKIPAGE 4w is displayed on the status monitor of the PC. Take proper action according to the message displayed on the status monitor. (2) LED display The OKIPAGE 4w is equipped with only one LED.

  • Page 69: Troubleshooting

    Troubleshooting If a trouble occurs in the OKIPAGE 4w, 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 70 Table 6-1 Status Category Status Message Display Content Remedy Code Normal status Warming Up 18 00 Warming-up status Normal operation 00 10 Online (ready) status Online (Ready) Normal operation Power Save Mode 00 20 Power save status Normal operation 10 00 The toner amount of the toner cartridge is small.
  • Page 71 Table 6-1 (Cont'd) Status Category Status Message Display Content Remedy Code 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 72 Table 6-1 (Cont'd) Status Status Category Category Status Message Status Message Display Content Display Content Remedy Remedy Code Code 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...

  • Page 73: Status Message Troubleshooting

    Some failures cannot be corrected according to the status message trouble list. Troubleshoot these failures according to the following troubleshooting flowcharts: Flowchart No. Item The OKIPAGE 4w malfunctions after the power supply has been turned on. Jam error Paper input jam Paper feed jam...

  • Page 74: The Okipage 4W Malfunctions After The Power Supply Has Been Turned On

    The OKIPAGE 4w 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 75: 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 E? • Yes Remove the jammed paper. • No Is paper sensor E (manual feed/paper) operating normally? •...
  • Page 76 • Yes Measure the resistance of the pulse motor (main). Is the resistance normal (about 12.6 • No Replace the pulse motor (main). • Yes Replace the main control board. 6 - 9...

  • Page 77: 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 E (paper/exit)? • Yes Remove the jammed paper. • No Is paper sensor E (exit/paper) operating normally? •...

  • Page 78: 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 E (paper) operating normally? • No Replace paper sensor E (paper) or clean the inlet sensor on the high-voltage power supply board.
  • Page 79 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, Halogen lamp, or thermostat. •...

  • Page 80: 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 81 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 82: Dark Background Density

    Dark background density • Has the OPC drum being exposed to external light? • Yes Set the OPC drum in the OKIPAGE 4w and wait for about 30 minutes. • No Is the heat roller of the heat assy dirty? •...

  • Page 83: Cyclic Defect

    Vertical black belt/stripe • Replace the EP unit. • Has this error been recovered? • Yes Caution: After replacing the EP unit, reset the drum counter. (Refer to "Replacing the Drum Cartridge" in "User's Manual".) • No Replace the LED head. •...
  • Page 84 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 85: Poor Fusing

    Poor fusing • Is the specified paper being used? • No Use the specified paper. (xerox 4200 (20 lbs)) • Yes Is the bias spring normal? (Tension: 2.5 kg) • No Replace the bias spring. • Yes Are the heater connector of the heat assy and the CN001 connector of the power supply unit connected correctly.
  • Page 86 Vertical white belt/spripe • 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 .) •...
  • Page 87 Contents A : Toner Supply Roller B : Developing Roller C : Charge Roller D : Cleaning Roller E : Transfer Roller F : Heat Roller Figure 6-4 6 - 20...
  • Page 88 Contents A : Toner Supply Roller B : Developing Roller C : Charge Roller D : Cleaning Roller E : Ground (Drum) Figure 6-5 6 - 21...

  • Page 89: Wiring Diagram

    WIRING DIAGRAM...

  • Page 90: Interconnect Signal Diagram

    WIRING DIAGRAM Interconnect Signal Diagram Thermistor Output CN001 Interface Control Output CN003 Interface) (Power Interface) (High-Voltage/Sensor 4 DMPH4-P 3 DMPH3-P 2 DMPH2-P 1 DMPH1-P Interface) (Parallel Head) (LED Head 7 - 1...

  • Page 91: Pcb Layout

    PCB Layout (1) Main Control Board (HBMC-2 PCB) Short Plag Plag Setting Content External EPROM is valid. Mask ROM in the CPU is valid. 7 - 2...
  • Page 92 (2) High-Voltage Power Supply Board 7 - 3...

  • Page 93: Parts List

    PARTS LIST...
  • Page 94 PARTS LIST Figure 8-1 Cover Assy Upper 8 - 1...
  • Page 95 Table 8-1 Cover Assy Upper Part Name Part No. Q'ty Remarks Upper Cover 1PP4128-1251P1 Lamp 3PP4128-1255P1 Guide Slide (L) 2PP4128-1256P1 Guide Slide (R) 2PP4128-1257P1 Spur Gear (A) 4PP4128-1260P1 Hopper Plate 1PP4128-1254P1 Extend Plate 2PP4128-1258P1 8 - 2...
  • Page 96 Heat assy Figure 8-2 Base Frame Unit 8 - 3...
  • Page 97 Compression Spring S 4PP4083-1246P1 Toner Sensor Assy 3PA4083-1193G1 Pulse Motor (Main) 4PB4083-1172P1 Ep Unit 4YA4083-1380G2 For ODA Ep Unit 4YA4083-1380G3 For OEL/OKI-INT Toner Cartridge Unit 40035001 For ODA Toner Cartridge Unit 4YA4083-1450G3 For OEL/OKI-INT Hopping Roller 4PB4083-1129P1 Roller Holder (Hopping Roller) 3PP4083-1128P1...
  • Page 98 1PP4083-1231P1 Paper Sensor Exit 3PP4083-1192P1 Hopper Spring 4PP4083-1247P1 Top Cover Assy 2PA4128-1271G1 For ODA Top Cover Assy 2PA4128-1271G2 For OEL/OKI-INT Head Spring 4PP4083-6168P1 LED Head 4YA4116-1228G1 Flat Cable Assy 4YX4083-1134G1 Bias Spring (R) (Back Up Roller) 4PP4083-1137P1 Sheet Guide 1PP4083-1241P1...
  • Page 99 Figure 8-3 Heat Assy 8 - 6...
  • Page 100 Table 8-3 Heat Assy Part Name Part No. Q'ty Remarks Heat Roller 3PB4083-1202P1 Halogen Lamp 3PB4083-6103P4 120V Halogen Lamp 3PB4083-6103P5 230V Thermostat 4PB4083-1204P1 Thermistor 4PB4083-1205P1 Heat Cord 4PB4083-1213P1 8 - 7...
  • Page 101 Figure 8-4 Base Plate Unit 8 - 8...
  • Page 102 Table 8-4 Base Plate Unit Part Name Part No. Q'ty Remarks Base Plate Assy 3PA4083-1135G1 Insulation Sheet 3PB4083-1251P1 Power Supply Unit 4YB4049-1853P1 120V Power Supply Unit 4YB4049-1854P1 230V Main Control Board (HBMC-2 PCB) 4YA4121-2516G2 Without ROM Program ROM 4YR4077-1670G1 EP ROM AC Cord 3YS4011-1315P1 AC Cord...
  • Page 103 APPENDIX...

  • Page 104: Appendix Alocal Printing

    Appendix A LOCAL PRINTING (1) The following operation enables the OKIPAGE 4w to print data by itselt. <Operation> With the cover open, turn on the AC switch and then close the cover. The following print patterns are printed. A - 1...

  • Page 105: Appendix Bparallel Interface

    Appendix B PARALLEL INTERFACE (1) Connector • Printer side : 36-pin receptacle Type: 57RE-40360-730B-D29A (Daiichi Denshi) or equivalent • Cable side : 36-pin plug Type: 57-30360 (Daiichi Denshi) or equivalent (2) Cable • Cable length : 6 feet (1.8 m) max. (A Shielded cable composed of twisted pair wires is recommended for noise prevention.) B - 1...
  • Page 106 DATA BIT - 6 DATA BIT - 7 DATA BIT - 8 Completion of input data reception ACKNOWLEDGE BUSY The OKIPAGE 4w is not ready to receive data. PAPER END Paper end detection SELECT Select state (Online) Carriage return control...
  • Page 107 (4) Signal level • LOW : 0 V to +0.8 V • HIGH : +2.4 V to 5.0 V (5) Interface circuit a) Receiving circuit R = 3.3K (1.0-K STROBE) b) Sending circuit (Open Collector) 3.3K (6) Timing charts a) Data receiving timing (compatible mode) PARALLEL DATA (DATA BITs 1 to 8) 0.5 s min.
  • Page 108             c) Data sending timing (nibble mode) ACKNOWLEDGE BUSY DATA bit 3 DATA bit 7 DATA bit 0 DATA bit 4 FAULT DATA bit 1 DATA bit 5 SELECT IN PAPER END DATA bit 2 DATA bit 6...

  • Page 109: Appendix C Maintenance Utility

    Appendix C MAINTENANCE UTILITY 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 •...

  • Page 110: Detail Of Each Function

    DETAIL OF EACH FUNCTION Engine Menu Setting Engine Menu Setting is used to set, display, and change the following menu items: (See Figure C-1.) (1) Print Position Used to adjust the print start position. (2) LED Head Marking No. Used to adjust the exposure time of the LED head. (3) LED Head Width Used to specify the LED head dot count.

  • Page 111: Printer Status

    Printer Status Printer Status is used to display the printer status. (See Figure C-1.) Test Print Test Print is used to check whether the printer can print data normally after the maintenance utility has terminated. Option Option is used to execute the following functions: (1) Printer Engine Reset Used to initialize the engine menu and counter.
  • Page 112 <Engine Maintenance Driver GUI (Preliminary)> Figure C-1 Main Menu Dialog (Preliminary) Figure C-2 Option Menu Dialog (Preliminary) C - 4...
  • Page 113 Figure C-3 About Dialog (Preliminary) C - 5...
  • Page 114 HP, LaserJet and PCL5e are trademarks of Hewlett-Packard Co.
  • Page 115 Oki Systems (Danmark) a.s. Oki Systems (Deutschland) GmbH Oki Systems (España) S.A. Park Alle 382 Hansaallee 187 C/Goya 9 DK-2625 Vallensbaek 40549 Dusseldorf 28001 Madrid Denmark Germany Spain Tel : 436 66500 Tel : 0211 5266-0 Tel : 91 5777336...

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