Accurate, clear and concise text, combined with detailed illustrations, lists of error code, instruction and diagrams, guide you through procedure of repair, remediate, maintenance and adjustments your copier, printer or scanner.
Present service manual Oki MB760/MB760+ MB770/MB770+ MPS5502/MB5502+ contain clear instructions and procedures on how to fix the problems occurring in your equipment.
Format of the manual: PDF, makes it easy to navigate, instant download and print. English language.
Table of contents:
(1 of 2) PRINTER UNIT:
1) CONFIGURATION
1.1 System configuration
1.2 The Configuration of printer
1.3 Options Parts
1.4 Specifications
1.5 Interface specifications
1.5.1 Specification of USB interface
1.5.1.1 General of USB interface
1.5.1.2 Connector and cable of USB interface
1.5.1.3 USB Interface signal
1.5.2 Specifications of network interface
1.5.2.1 General of network Interface
1.5.2.2 Connector and cable of network Interface
1.5.2.3 Signal of network Interface
1.5.3 Telephone Line interface Specification
1.5.3.1 Outline of telephone Line interface
1.5.3.2 Telephone Line interface Connector and Cable
1.5.3.3 Telephone Line interface signal
1.5.4 USB Host interface
1.5.4.1 Outline of USB Host interface
1.5.4.2 USB Host interface Connector
1.5.4.3 USB Host interface signal
1.5.5 Specifcation of ACC interface
2) SET UP
2.1 Notes and precautions
2.2 Unpack method
2.3 Setting method
2.4 Assembling method
2.4.1 Cable connect
2.4.2 Optional part installation and confirmation
3) COMPONENT REPLACEMENT
3.1 Precautions on component replacement
3.2 Method of component replacement
3.2.1 Transfer Roller
3.2.2 Fuser unit
3.2.3 Cover-Rear-Blind
3.2.4 Cover-side-L
3.2.5 Cover-side-R
3.2.6 Scanner unit
3.2.7 Stay-R
3.2.8 CU/PU PCB/Low voltage power supply
3.2.9 Plate-Board-R Assy / Guide-Cable Power Low
3.2.10 Motor FAN (low voltage)
3.2.11 DC motor (hop) / DC motor (ID)
3.2.12 Motor FAN (ID) / Micro switch (Plate-Assy-Side(R))
3.2.13 Board-TAG (Plate-Assy-Side(R))
3.2.14 HV-Board / Motor-FAN
3.2.15 Cover-Assy-Front
3.2.16 LED Assy
3.2.17 Plate-Assy-Duct
3.2.18 Feeder-Assy-Regist / Clutch
3.2.19 TR-Assy-Front
3.2.20 TR-Assy-Rear
3.2.21 Cover-Assy-Stacker (Short-Model)
3.2.22 Cover-Assy.-St(Tall) (for finisher model only)
3.2.23 Eject-Assy
3.2.24 DC motor (fuser)
3.2.25 Plate-Assy-Base / Plate-Assy-Side-L / Plate-Assy-Side-R
3.2.26 Paper feed rollers
3.2.27 Paper feed rollers (MPT)
3.2.28 Tray-Assy-Document / Cover-ADF-R
3.2.29 ADF-unit
3.2.30 Sheet-document / Paper-weight-Assy / Spring-PW-ADF
3.2.31 Hinge-Assy-L / Hinge-Assy-R
3.2.32 ADF-Assy
3.2.33 Guide-Retard / Roller / Motor / Clutch / Solenoid/Photo-sensor
3.2.34 Cover-Assy-Top-ADF
3.2.35 Frame-Assy-Hopping-ADF
3.2.36 Guide-Assy-Retard
3.2.37 Flatbed-Unit
3.2.38 Frame-assy-FB
3.2.39 Antenna (for wireless model only)
3.2.40 Stapler (for stapler model only)
3.2.41 Finisher (for finisher model only)
3.3 Check the Scanner Mech Level and SU FW version
3.4 Oiling spots
4) MAINTENANCE MENU
4.1 Maintenance Utility
4.2 Maintenance menu functions
4.2.1 Self-diagnostic mode
4.2.1.1 Operation panel
4.2.1.2 Ordinary self-diagnostic mode (level 1)
4.2.1.2.1 How to enter the self-diagnostic mode (level 1)
4.2.1.2.2 How to exit the self-diagnostic mode
4.2.1.3 Switch scan test
4.2.1.4 Motor clutch test
4.2.1.5 Test print
4.2.1.6 Consumable item counter display
4.2.1.7 Number of print copies counter display
4.2.1.8 Switching between the Factory mode and the Shipping mode
4.2.1.9 Self-diagnostic function setting
4.2.1.10 LED head serial number display
4.2.1.11 NVRAM parameter setting
4.2.2 How to enter the Scanner Maintenance Menu
4.3 Setups upon completion of part replacement
4.3.1 Precautions when replacing the PU board
5 PERIODIC MAINTENANCE
5.1 Cleaning
5.2 How to clean the LED lens array
5.3 How to clean the pickup rollers for Cassette
5.4 How to clean the paper feed rollers for MP Tray
5.5 How to clean the rollers in the ADF
5.6 How to clean the document rollers in the ADF
5.7 How to clean the document glass
6) TROUBLESHOOTING AND REPAIR PROCEDURE
6.1 Before starting the repair work
6.2 Confrmation items before taking corrective action against abnormalities
6.3 Precautions when taking corrective action against abnormality
6.4 Preparation for troubleshooting
6.5 Troubleshooting method
6.5.1 Error code list
6.5.2 Printer error troubleshooting
6.5.3 Scanner error troubleshooting
6.5.4 Preparation for troubleshooting
6.5.5 Troubleshooting the abnormal images
6.6 Fuse check
6.7 Paper cassette switches versus Paper size correspondence table
7) CONNECTION DIAGRAMS
7.1 Resistance value check
7.2 Parts location
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(2 of 2) CONTROLLER MANUAL:
1) SPECIFICATIONS/SYSTEM LIST
1.1 Specifications
1.1.1 General
1.1.2 HDD Memory Map
1.2 System List
2) DISASSEMBLY AND REPLACEMENT
2.1 Removal and Installation of Options
2.1.1 MJ-1038 (Inner finisher)
2.1.2 GD-1340 (Fax unit)
2.1.3 MY-1046 (Paper feed pedestal)
2.1.4 GR-1170 (Caster)
2.1.5 GR-1160 (Spacer)
2.1.6 MJ-1039 (Offline stapler)
3) SELF-DIAGNOSTIC MODE
3.1 Overview
3.2 Service UI
3.2.1 Overview
3.2.2 Login procedure
3.2.3 [SERVICE MODE] Screen
3.2.4 Setting/Changing password
3.3 Input check (Test mode 03)
3.4 Output check (test mode 03)
3.5 Test print mode (test mode 04)
3.6 Operation Procedure in Adjustment Mode (05)
3.7 Test print pattern in Adjustment Mode (05)
3.8 Operation Procedure in Setting Mode (08)
3.9 Assist Mode (3C)
3.9.1 General description
3.9.2 Operating Procedure
3.9.3 Functions
3.10 HDD Assist Mode (4C)
3.10.1 General description
3.10.2 Operation procedure
3.10.3 Functions
3.11 File System Recovery Mode (5C)
3.11.1 Overview
3.11.2 Operation procedure
3.11.3 Functions
3.12 SRAM Clear Mode (6C)
3.12.1 General description
3.12.2 Operation procedure
3.12.3 Functions
3.13 List print mode (9S)
3.13.1 Operation procedure
3.13.2 List Printing
4. SETTING / ADJUSTMENT
4.1 Image Related Adjustment
4.1.1 Adjustment Order
4.1.2 Image Dimensional Adjustment
4.1.3 Image dimensional adjustment in the copy/printer/fax function
4.2 Image Quality Adjustment (Copying Function)
4.2.1 Automatic gamma adjustment
4.2.2 Density adjustment
4.2.3 Gamma balance adjustment
4.2.4 Background adjustment
4.2.5 Judgment threshold for ACS (common for copy and scan)
4.2.6 Sharpness adjustment
4.2.7 Setting range correction
4.2.8 Adjustment of smudged/faint text
4.2.9 Judgment threshold adjustment for blank originals (common for copy and scan)
4.2.10 Background offsetting adjustment for RADF (common for copy, scan and fax)
4.3 Image Quality Adjustment (Printing Function)
4.3.1 Gamma balance adjustment (Black Mode)
4.3.2 Upper limit value in the Toner Saving Mode
4.3.3 Thin line width lower limit adjustment
4.3.4 Density adjustment of graphic lines (1200 dpi)
4.4 Image Quality Adjustment (Scanning Function)
4.4.1 Gamma balance adjustment
4.4.2 Density adjustment
4.4.3 Background adjustment (Color Mode)
4.4.4 Background adjustment (Black/Grayscale)
4.4.5 Judgment threshold for ACS (common for copy and network scan)
4.4.6 Sharpness adjustment
4.4.7 Fine adjustment of black density
4.4.8 RGB conversion method selection
4.4.9 Adjustment of saturation
4.4.10 Background offsetting adjustment for RADF (common for copy, scan and fax)
4.4.11 Adjustment of the capacity and image quality of SlimPDF
4.4.12 Surrounding void amount adjustment
4.4.13 Judgment threshold adjustment for blank originals (common for copy and scan)
4.4.14 JPEG compression level adjustment
4.4.15 Color conversion table selection
4.5 Image Quality Adjustment (FAX Function)
4.5.1 Density adjustment
4.5.2 Background offsetting adjustment for RADF (common for copy, scan and fax)
5) ERROR CODE AND TROUBLESHOOTING
5.1 General Descriptions
5.1.1 If a problem continues even after performing all troubleshooting
5.1.2 Collection of debug logs with a USB device
5.2 Error Code List
5.2.1 Jam
5.2.2 Service call
5.2.3 Error in Internet FAX / Scanning Function
5.2.4 Printer function error
5.2.5 Web Page related error/Communication error with external application
5.2.6 MFP access error
5.2.7 Maintenance error
5.2.8 Network error
5.2.9 Error history
5.3 Diagnosis and Prescription for Each Error Code
5.3.1 Check item
5.3.2 Paper jam in finisher section
5.3.3 Finisher related service call
5.3.4 Communication related service call
5.3.5 Scanner related service call
5.3.6 Circuit related service call
5.3.7 Other service call
5.3.8 Error in Internet FAX / Scanning Function
5.3.9 Printer function error
5.3.10 Web Page related error/Communication error with external application
5.3.11 MFP access error
5.3.12 Maintenance error
5.3.13 Network error
5.4 Other errors
5.4.1 Equipment operation disabled after the installation of option(s)
5.4.2 Wireless LAN connection disabled
5.4.3 “Invalid Department Code” is displayed
5.4.4 Ethernet disabled in half-duplex communication
6) REPLACEMENT OF PC BOARDS/HDD
6.1 Removal and Installation of PC Boards/HDD
6.1.1 Right side cover
6.1.2 SYS Board cover
6.1.3 SYS board
6.1.4 Hard disk (HDD)
6.1.5 SRAM board
6.1.6 FAX unit
6.2 Precautions, Procedures and Settings for Replacing PC Boards and HDD
6.2.1 Precautions when replacing PC boards
6.2.2 HDD fault diagnosis
6.2.3 Precautions and procedures when replacing the HDD
6.2.4 Precautions and Procedures when replacing the SYS board
6.2.5 Precautions and procedure when replacing the SRAM board (for the SYS board)
6.2.6 Precautions and Procedures when replacing the PU board
6.2.7 Precautions and Procedures when replacing the SU board
6.2.8 Firmware confirmation after the PC board/HDD replacement
6.2.9 License re-registration using the one-time dongle
6.3 Precautions for Installation of GP-1070 and Disposal of HDD/ Board
6.3.1 Precautions for Installation of GP-1070
6.3.2 Precautions when disposing of HDD
6.3.3 Precautions when disposing of the SYS board
6.3.4 Precautions when disposing of the SRAM board (for SYS board)
7) REMOTE SERVICE
7.1 Auto Supply Order
7.1.1 Outline
7.1.2 Setting Item
7.1.3 Setting procedure
7.1.4 Order Sheet Format
7.2 Service Notification
7.2.1 Outline
7.2.2 Setting
7.2.3 Items to be notified
8) FIRMWARE UPDATING
8.1 Overview
8.2 Firmware Updating with USB Device
8.2.1 Firmware type and data file name for updating
8.2.2 Update procedure
8.3 Patch Updating with USB Device
8.3.1 Firmware type and data file name for patch updating
8.3.2 Update procedure
8.4 Firmware Updating with PWA-DWNLD-JIG2
8.4.1 Writing the data to the download jig (PWA-DWNLD-JIG2)
8.4.2 System firmware
8.5 Firmware Updating with K-PWA-DLM-320
8.5.1 FAX unit firmware (GD-1340)
8.6 Confirmation of the updated data
8.7 When Firmware Updating Fails
8.7.1 Procedure
8.7.2 Flow chart for correcting USB update failure
9) BACKUP FUNCTION
9.1 Data Cloning
9.1.1 General description
9.1.2 Precautions
9.1.3 Backup files
9.1.4 Cloning procedure
9.2 AES Data Encryption Function Setting
9.2.1 General description
9.2.2 Precautions
9.2.3 Setting procedure
9.2.4 Procedure for disabling data encryption function
9.2.5 Procedure for discarding HDD when data encryption function is enabled
9.3 High Security Mode
9.3.1 General description
9.3.2 Prior confirmation
9.3.3 Procedure for entering the High Security Mode
9.3.4 Precautions
10) EXTERNAL COUNTERS
10.1 Outline
10.2 Signal
10.2.1 Pin Layout
10.2.2 Details of the signals
10.3 Notices
10.3.1 Setting code
10.3.2 Setting value change and restrictions when using the coin controller
11) SELF-DIAGNOSIS CODE (03/05/08 CODE)
Test mode (03)
Adjustment Mode (05) Codes
Setting Mode (08) Codes