Page 1: Service Guide
72 dpi, which is ideal for screen viewing. For future updates to this manual, and Business Partner Exchange (BPX) at more on-line information visit our http://bpx.okidata.com Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 2: Table Of Contents
Table of Contents Page Service Manual for OKIPAGE 8z 0 Introduction Preface 1 Configuration Configuration ..1.1 System Configuration ..1.2 Printer Configuration ..1.3 Specification ..1.4 Safety Standards ..1.4.1 Certification Label ..1.4.2 Warning Label 2 Operation Description 2.0 Operation Description 2.1 Main Control Board 2.2 Power Supply Unit...
Page 3 Table of Contents Page ..4.1 Adjustment Types and Functions ..4.1.1 Printer Driver ..4.1.2 Engine Maintenance Utility ..4.2 Adjustment When Replacing a Part ..4.2.1 Setting LED Head Drive Time ..4.2.2 Uploading and Downloading EEPROM Data 5 Periodical Maintenance 5.1 Periodical Replacement Parts 5.2 Cleaning ..5.2.1 Cleaning the LED Lens Array 6 Troubleshooting Procedures...
Page 4 Table of Contents Page ..4.6 About ..4.7 Reload ..4.8 Exit D Universal Serial Bus (USB) USB Specifications...
Page 5: Preface
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 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 6: System Configuration
Page: 2 Chapter 1 Configuration Configuration System Configuration Printer Configuration Specification Safety Standards Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 7 Page: 3 Chapter 1 Configuration 1.1 System Configuration The OKIPAGE 8z consists of a control block, a power supply unit, and an engine block. (See Figure 1-1 below.) Figure 1-1 Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange...
Page 8: Printer Configuration
Service Manual for OKIPAGE 8z Page: 4 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.
Page 9 Figure 1-2 Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 10: Specification
Service Manual for OKIPAGE 8z Page: 5 Chapter 1 Configuration 1.3 Specification Type: Desktop Outside dimensions Height: 5.9" (150 mm) (excludes protruding Width 12.2" (310 mm) portion) Depth 7.5" (191mm) Weight 8.4 lbs. (3.8kg) Development Dry non-magnetic development system method...
Page 11 Toner cartridge kit - 1,500 (5% duty) ---- 45g cartridge kit Image drum cartridge - 10,000 (at continuous printing) Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 12: Safety Standards
Page: 6 Chapter 1 Configuration 1.4 Safety Standards 1.4.1 Certification Label 1.4.2 Warning Label Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 13: Certification Label
The safety certification label is affixed to the following location of the OKIPAGE 8z: Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 14: Warning Label
During maintenance, do work with enough care while following instructions on these warning labels. Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 15: Operation Description 2.0 Operation Description
Chapter 2 Operation Description 2.0 Operation Description The OKIPAGE 8z consists of a main control board, a high-voltage power supply board, a power supply unit, and an electro-photographic processor. The OKIPAGE 8z receives print data from a higher-level interface and sequentially stores it in memory. The OKIPAGE 8z decodes and edits the received data while storing print data from the interface in memory.
Page 17: Main Control Board
Service Manual for OKIPAGE 8z Page: 10 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.
Page 18 The parallel interface receives parallel data from the host; it conforms to the IEEE1284 specification. Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 19: Power Supply Unit
Used to generate a logic circuit and a high voltage. +26 V Used to drive the motor and electromagnetic clutch. Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 20: High-Voltage Power Supply Board
Service Manual for OKIPAGE 8z Page: 12 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 cover is open, +5 V supply is automatically interrupted to stop high-voltage output.
Page 21 Detects the low toner status. ON (long): Toner low. OFF (short): Toner high. Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 22: Electro-Photographic Processor
Service Manual for OKIPAGE 8z Page: 13 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.
Page 23 clutch. The relationship between the main motor, electromagnetic clutch, resist gear, drum gear, hopping roller is shown in the table below and on the subsequent pages. Main Motor Electromagnetic Hopping Roller Regist Gear Drum Gear Operation Clutch Normal rotation Non-rotation Non-rotation Rotation Warm-up...
Page 25: Electro-Photographic Process
Service Manual for OKIPAGE 8z Page: 14 Chapter 2 Operation Description 2.5 Electro-Photographic Process The electro-photographic process is outlined below: Charging - The surface of the OPC drum is charged negatively and uniformly by applying the DC voltage to the CH roller.
Page 27: Explanation Of Each Process Operation
Service Manual for OKIPAGE 8z Page: 15 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...
Page 28 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 Rotate the pulse motor (main) in the a direction.
Page 29 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. (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 30 (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. The sponge roller negatively charges a toner and applies it to the developing roller.
Page 31 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.
Page 32 OPC drum with static electricity and then returns it to the OPC drum. Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 33: Paper Jam Detection
2.6 Paper Jam Detection The OKIPAGE 8z monitors the paper status when the power supply is on and during printing. In the following cases, the OKIPAGE 8z 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 34 Outlet sensor OFF Unit: mm Timing Chart for Paper Feed (Tray Feed) Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 35: Toner Low Detection
Service Manual for OKIPAGE 8z Page: 17 Chapter 2 Operation Description 2.7 Toner Low Detection Hardware configuration of toner sensor The figure below shows the hardware configuration of the toner sensor. Hardware Configuration of Toner Sensor Toner detection method (1) Toner sensor monitoring conditions are shown in the figure below.
Page 37: Cover Open
Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 38: Detecting Id Existence
Service Manual for OKIPAGE 8z Page: 19 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.
Page 39 Specification 1. Toner sensor error/ID not Installed state should not be stored in the EEPROM.
Page 40 2. A shift to ID not Installed and Toner Sensor Error shall be made at cover open or close. Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 41: Precautions For Parts Replacement
3.1 Precautions for Parts Replacement 3.2 Parts Layout 3.3 Replacing Parts Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 42 Service Manual for OKIPAGE 8z Page: 21 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").
Page 43: Maintenance Utility
[Maintenance Utility] Table 3-2 Maintenance Utility Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 44: Parts Layout
This section explains the layout of main parts. Upper Cover Assy Base Frame Unit Base Plate Unit Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 45: Upper Cover Assy
Service Manual for OKIPAGE 8z Page: 23 Chapter 3 Parts Replacement Upper Cover Assy...
Page 47: Base Frame Unit
Service Manual for OKIPAGE 8z Page: 24 Chapter 3 Parts Replacement Base Frame Unit...
Page 51: Base Plate Unit
Service Manual for OKIPAGE 8z Page: 25 Chapter 3 Parts Replacement Base Plate Unit...
Page 54: Replacing Parts
3.3.16 Paper Sensor E, Paper Sensor Exit, and Toner Sensor Assy 3.3.17 Base Plate Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 55: Hopper Plate
Service Manual for OKIPAGE 8z Page: 27 Chapter 3 Parts Replacement 3.3.1 Hopper Plate Remove two claws and dismount hopper plate (1).
Page 57: Led Head And Head Spring
Service Manual for OKIPAGE 8z Page: 28 Chapter 3 Parts Replacement 3.3.2 LED Head and Head Spring Open top cover assy (1). Dismount the left clamp and LED head (2). Then, dismount flat cable assy (3). Dismount two head springs (4).
Page 59: Transfer Roller
Service Manual for OKIPAGE 8z Page: 29 Chapter 3 Parts Replacement 3.3.3 Transfer Roller Open top cover assy (1) and dismount the image drum unit (Type 6) (2). Remove the right claw. Then, dismount transfer roller (3), two regist bearings (4), and gear T (5).
Page 61: Upper Cover Assy
Service Manual for OKIPAGE 8z Page: 30 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).
Page 63: High-Voltage Power Supply Board (P2H/P6L)
Service Manual for OKIPAGE 8z Page: 31 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).
Page 65: Top Cover Assy And Flat Cable Assy
Service Manual for OKIPAGE 8z Page: 32 Chapter 3 Parts Replacement 3.3.6 Top Cover Assy and Flat Cable Assy Dismount the upper cover assy. (See Section 3.3.4.) Dismount the LED head. (See Section 3.3.2). Press the left clamp outward and dismount the engagement and top cover assy (1). (Tension spring (2) also comes off at the same time.)
Page 67: Paper Holder
Service Manual for OKIPAGE 8z Page: 33 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).
Page 69: Side Plate M And Idle Gear
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 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 70: Heat Assy
Service Manual for OKIPAGE 8z Page: 35 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> 1. Dismount the upper cover assy. (See Section 3.3.4.) 2.
Page 73: Drive Shaft E (Eject) And Eject Roller
Unlock and dismount drive shaft E (Eject) (4). Dismount two eject rollers (5). Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 74: Pressure Roller B (Back Up Roller)
Service Manual for OKIPAGE 8z Page: 37 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. (See Section 3.3.9 Dismount the engagement with the left ground, then pressure roller B (1).
Page 76: Separator Guide
Service Manual for OKIPAGE 8z Page: 38 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).
Page 77 Dismount Inlet...
Page 78 Disconnecting Connector Disconnecting Connector Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 79: Pulse Motor (Main)
Service Manual for OKIPAGE 8z Page: 39 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).
Page 81: Hopping Shaft Assy
Draw out hopping shaft assy (1) to the right and dismount magnet H (6). Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 82: Resist Roller
Move resist roller (1) to the right and dismount it by lifting. (Two resist bearings (2) also come off at the same time. Take care not to lose them.) Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 83: Paper Sensor E, Paper Sensor Exit And Toner
Service Manual for OKIPAGE 8z Page: 42 Chapter 3 Parts Replacement 3.3.16 Paper Sensor E, Paper Sensor Exit and Toner Sensor Assy Dismount the upper cover assy. (See Section 3.3.4.) Dismount the high-voltage power supply board. (See Section 3.3.5) Dismount the base frame. (See Section 3.3.12).
Page 85 Service Manual for OKIPAGE 8z Page: 43 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).
Page 87: Adjustment Types And Functions
4.1 Adjustment Types and Functions 4.2 Adjustment When Replacing a Part Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 88: Printer Driver
Chapter 4 Adjustment 4.1 Adjustment Types and Functions 4.1.1 Printer Driver 4.1.2 Engine Maintenance Utility Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 89 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 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 90: Engine Maintenance Utility
Service Manual for OKIPAGE 8z Page: 47 Chapter 4 Adjustment 4.1.2 Engine Maintenance Utility See Appendix C. Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 91: Adjustment When Replacing A Part
Upload or download EEPROM data. 4.2.1 Setting LED Head Drive Time 4.2.2 Uploading and Downloading EEPROM Data Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 92: Setting Led Head Drive Time
LED head as the LED head drive time. (See Figure 4-2 below.) Luminous intensity of LED head Figure 4-2 Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 93 Setting the LED head drive time (Section 4.2.1) Setting the LED head count (OKIPAGE 8z only) Setting specifications (ODA/OEL/INT-A/INT-L) Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 94: Periodical Replacement Parts
Consumables Caution: Also reset the drum counter when replacing the image drum unit. Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 95: Cleaning
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 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 96 Service Manual for OKIPAGE 8z Page: 53 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.
Page 98: Troubleshooting Procedures
Check the printer under the condition close to that under which the failure occurred. Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 99: Check Points Before Correcting Image Problems
Are sheets of paper normal? Is the EP image drum unit set correctly? Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 100: Notes When Correcting Image Problems
Do not expose the image drum to light for more than five minutes at room temperature. Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 101: Preparation Before Troubleshooting
Chapter 6 Troubleshooting Procedures 6.4 Preparation Before Troubleshooting 1. Message display The failure status of the OKIPAGE 8z 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 8z is equipped with only one LED.
Page 102 Flash 1: Slow blinking Flash 2: Blinking Flash 3: Fast blinking Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 103: Troubleshooting
6.5 Troubleshooting 6.5.1 Status Monitor Message List 6.5.2 Status Message Troubleshooting 6.5.3 Image Troubleshooting Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 104: Status Monitor Message List
Service Manual for OKIPAGE 8z Page: 59 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 Status Message Status...
Page 105 simultaneously. To clear the error display, open the cover, then close Paper jam Paper Input Jam 31 00 A paper jam occurred Check the paper. when sheets of paper To release the were being supplied. error display, open the cover, then close it.
Page 106 Replace the main control board. Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 107: Status Message Troubleshooting
When replacing the main control board troubleshooted according to the troubleshooting flowcharts, also adjust EEPROM data. (1) The OKIPAGE 8z 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 108 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).
Page 109 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.
Page 110 No - Connect the CN2 connectors correctly. Yes - Replace the main control board. Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 111: Image Troubleshooting
E Cyclical defect F White vertical belts or streaks Figure 6-3 Image Problems Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 112: An Image Is Light Or Blurred Entirely
"User's Manual". No - Replace the main control board or high-voltage power supply board. Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 113: Dark Background Density
Cartridge" in the "User's Manual". No - Replace the main control board or high-voltage power supply board. Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 114: A Blank Paper Is Output
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 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 115: Vertical Black Belt/Stripe
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 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 116: Cyclic Defect
After replacing the image drum unit, reset the drum counter. Refer to "Replacing the Drum Cartridge" in the User's Manual. Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 117: A Blank Paper Is Output
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 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 118: Poor Fusing
Yes - End No - Replace the main control board or high-voltage power supply board. Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 119: Vertical White Belt/Stripe
Cartridge" in the User's Manual. No - Replace the main control board or high-voltage power supply board. Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 120 D : Cleaning Roller E : Transfer Roller F : Heat Roller Figure 6-4 Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 121 Service Manual for OKIPAGE 8z Page: 71 Chapter 6 Troubleshooting Procedures Contents - Figure 6-5 A : Toner Supply Roller B : Developing Roller C : Charge Roller D : Cleaning Roller E : Ground (Drum) Figure 6-5...
Page 123: Wiring Diagram 7.1 Interconnect Signal Diagram
Service Manual for OKIPAGE 8z Page: 72 Chapter 7 Wiring Diagram 7.1 Interconnect Signal Diagram < side view of the same diagram>...
Page 125: Pcb Layout
7.2 PCB Layout 7.2.1 Main Control Board (NMA PCB) 7.2.2 High-Voltage Power Supply Board Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 126: Main Control Board (U8S Pcb)
Service Manual for OKIPAGE 8z Page: 74 Chapter 7 Wiring Diagram 7.2.1 Main Control Board (U8S PCB) Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 127: High-Voltage Power Supply Board
Service Manual for OKIPAGE 8z Page: 75 Chapter 7 Wiring Diagram 7.2.2 High-Voltage Power Supply Board...
Page 129 Guide Side (L) 51021001 Guide Slide (R) 51021101 Gear Spur A 51237301 Plate-Hopper 40412901 Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 130: Base Frame Unit
Service Manual for OKIPAGE 8z Page: 77 Chapter 8 Parts List Base Frame Unit...
Page 132: Heat Assy
Part Name OKIDATA Part # Remarks Frame Unit Assy 40593201 High-Voltage Power Supply Board 41226501 Paper Sensor E 50410601 Separator Assy 40721301 Compression Spring S 40781701 Toner Sensor Assy 50410801 Pulse Motor 40496401 EP Unit (Type 6) (Image Drum Unit) 40709901 Consumable Toner Cartridge Unit (Type 6)
Page 133 Film Guide Bearing Gear 40634701 40625401 Contact CB 40638001 CONN Cord HV 40638101 Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 134 Insulation Sheet B 40043001 High-Voltage Power Supply 41226501 Board P3H Insulation Sheet C 40593101 Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 135 Insulation Sheet B 40043001 High-Voltage Power Supply 41226501 Board P3H Insulation Sheet C 40593101 Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 136 Heat Roller Halogen Lamp 40649301 120V Halogen Lamp 40649302 230V Thermostat Thermistor Heat Cord Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 137: A Local Printing
With the cover open, turn on the AC switch and then close the cover. The following print patterns are printed. Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 138: Parallel Interface
DATA BIT - 7 DATA BIT - 8 <-- PR Completion of input data reception ACKNOWLEDGE BUSY <-- PR The OKIPAGE 8z is not ready to receive data. PAPER END <-- PR Paper end detection SELECT <-- PR Select state (Online) -->...
Page 139 (4) Signal level LOW : 0 V to _0.8 V HIGH: +2.4 V to 5.;0 V (5) Interface circuit a) Receiving circuit (b) Sending circuit (6) Timing charts a) Data receiving timing (compatible mode) b) INPUT PRIME timing (when the INPUT PRIME signal is enabled)
Page 140 Data sending timing (nibble mode) Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 141 About : Used to display engine maintenance utility information and printer information. Reload : Used to reload menu setting values. Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 142: Detail Of Each Function
4.3 Printer Status 4.4 Test Print 4.5 Option 4.6 About 4.7 Reload 4.8 Exit Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 143: Engine Menu Setting
10) Cancel Used to clear unreflected items. (Items for which Entry is not specified.) Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 144: Engine Counter
Total number of printed pages after shipment clicking the "Reset" button cleans each counter. (4) Reset All Used to clear all counters. Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 145: Printer Status
Printer Status is used to display the printer status. (See Figure C-1.) <Engine Maintenance Driver GUI> Figure C-1 Main Menu Dialog Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 146: 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) Figure C-3 Option Menu Dialog Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 147: Option
Used to set a destination default (ODA, OEL, INTL, INTA). See Figure C-3 below. Figure C-3 Option Menu Dialog Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 148: About
Printer version information and memory size information Printer device ID information See figure C-4. Figure C-4 About Dialog Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 149: Reload
Chapter C Maintenance Utility 4.7 Reload Reload is used to reload menu setting values. Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 150: Exit
Chapter C Maintenance Utility 4.8 Exit Clicking the Exit button terminates the maintenance utility. Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Page 151 Service Manual for OKIPAGE 8z Page: 92 Chapter D Universal Serial Bus (USB) USB Specifications 1) Connector Printer Side : "B" Receptacle (Upstream Input to the USB Device) Cable Side : Series "B" Plug 2) Cable Cable Length : Max 5 m (A cable must be met USB Spec Rev 1.1 for normal operation) Note: Cable is not supplied.
Page 152 (9) Signal Level Input / Output Level Parameter Symbol Min. Max. Units Input Levels: High (driven) High (floating) Output Levels: High (driven) Output Signal Crossover Voltage Signaling Levels...
Page 153 Notes: 1. The width of EOP is defined in bit times relative to the device type receiving the EOP. The bit time is approximate. (10) Timing Chart a) Packet Voltage Levels...
Page 154 b) Disconnect Detection (c) Full-speed Device Connection Detection d) Differential Data Jitter...
Page 155 Differential-to-EOP Transition Skew and EOP Width f) Receiver Jitter Tolerance Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)

Oki OKIPAGE 8z Service Manual

0 Introduction

1 Configuration

2 Operation Description

3 Parts Replacement

8 Parts List

5 Periodical Maintenance

Troubleshooting Procedures

7 Wiring Diagram

A Local Printing

B Parallel Interface

100 C Maintenance Utility

Quick Links

Service Guide

Troubleshooting

Related Manuals for Oki OKIPAGE 8z

Summary of Contents for Oki OKIPAGE 8z

Table of Contents