Oki MC873dn ES8473 MFP Service Manual and Parts Catalog


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 and parts catalog Oki MC873dn ES8473 MFP 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. CONFIGURATION
1.1 System configuration
1.2 Structure of MFP
1.3 Offer of Options
1.4 Specifications
1.5 Interface specifications
1.5.1 USB Interface Specification
1.5.1.1 Outline of USB Interface
1.5.1.2 USB Interface Connector and Cable
1.5.1.3 USB Interface Signal
1.5.2 Network Interface Specification
1.5.2.1 Outline of Network Interface
1.5.2.2 Network Interface Connector and Cable
1.5.2.3 Network Interface Signal
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 Wireless LAN Interface
1.5.5.1 Outline of Wireless LAN

2. TROUBLESHOOTING PROCEDURES
2.1 Precautions prior to repair
2.2 Items to be checked prior to taking action on abnormal images
2.3 Precautions when taking action on abnormal images
2.4 Preparations for troubleshooting
2.5 Troubleshooting method
2.5.1 Panel messages list
2.5.2 Inspection List
2.5.3 Fax Error List
2.5.4 Email/Internet FAX/FAX Server Error List
2.5.5 Preparing for troubleshooting
2.5.6 Troubleshooting the abnormal images
2.5.7 Response after Flash compulsive initialization
2.5.8 Copy Image Abnormality Error Troubleshooting
2.5.9 Network Troubleshooting
2.5.10 Wireless Troubleshooting
2.6 Fuse Checking
2.7 Paper cassette switches and paper size correlation table

3. MAINTENANCE MENUS
3.1 Maintenance Menu
3.2 Service Bit Menu
3.3 Maintenance Utility
3.4 Self-diagnostic mode
3.4.1 Operator panel
3.4.2 Normal self-diagnostic mode (Level 1)
3.4.2.1 Entering self-diagnostic mode (level 1)
3.4.2.2 Exiting self-diagnostic mode
3.4.3 Switch scan test
3.4.4 Motor and clutch test
3.4.5 Test print
3.4.6 Color registration adjustment test
3.4.7 Density adjustment test
3.4.8 Consumable counter display
3.4.9 Print counter display
3.4.10 Factory-Shipping mode switching
3.4.11 Self-diagnostic function setting
3.4.12 LED head serial number display
3.4.13 Drum Manual Cleaning
3.4.14 Functions of buttons after power-on
3.5 Setup after part replacement
3.5.1 Notes on CU/ PU board replacement
3.5.2 Notes on HDD replacement
3.6 Manual density adjustment setting

4. REPLACEMENT OF PARTS
4.1 Notes on replacement of parts
4.2 Part replacement procedure
4.2.1 Belt unit
4.2.2 Fuser unit
4.2.3 Cover side-L-upper / Cover side-L
4.2.4 Cover side-R-upper / Cover side-R
4.2.5 Rear cover Assy
4.2.6 Duplex Unit
4.2.7 LED Assy. / Spring-Head
4.2.8 Main board (board Assy-6CU) / Board memory
4.2.9 HDD Assy / Plate Assy.-Sensor / Stapler Unit
4.2.10 Scanner Unit / Cover-Hinge(L) / Cover-Hinge(R)
4.2.10.1 Tray-Assy-Document/Cover-ADF-R
4.2.10.2 Tray-Assy-Document
4.2.10.3 Damper Assy-L/R
4.2.10.4 ADF-unit / CONN Cord / Film-Guard(L) / Film-Guard(R)
4.2.10.5 Sheet-document/Paper-weight-Assy/Spring-PW-ADF
4.2.10.6 Hinge-Assy-L / Hinge-Assy-R
4.2.10.7 ADF-Assy
4.2.10.8 Guide-Retard / Cover-Assy-Top-ADF / Motor /CONN Coard / Clutch / Photo-sensor
4.2.10.9 Frame Assy.-Hopping(ADF)
4.2.10.10 Guide Assy.-Top / Board Assy.-6JC
4.2.10.11 Guide-Assy-Retard
4.2.10.12 Flatbed-Unit
4.2.10.13 Frame-assy-FB
4.2.11 Frame-Assy.-OP
4.2.12 2bin Assy. / Guide Assy.-2Bin / Stacker Assy.-2Bin
4.2.13 Top cover Assy
4.2.14 Cable-Assy-Head / Lever-SNS / Photo Sensor
4.2.15 Plate-Stay(L)
4.2.16 Plate-Stay(R) / Plate-Board-R-Assy / Plate-Support(Stay)
4.2.17 Front cover Assy
4.2.18 Guide Assy.-eject
4.2.19 Post-fuser-lock
4.2.20 Relay board (P6Z) / contact Assy. / Sensor Assy. Fuser-A
4.2.21 High-voltage power supply board
4.2.22 Frame Assy.-Front
4.2.23 Roller Assy.-registration
4.2.24 Roller-feed, roller-pickup, frame Assy.-pickup,and holder sensor Assy
4.2.25 Low-voltage power supply Assy
4.2.26 Motor Assy.-belt and motor Assy-ID
4.2.27 Motor DC-FU (fuser motor) / Plate cover FU
4.2.28 Side-R Assy. and side-L Assy
4.2.29 Feed rollers (Tray 1/2/3/4)
4.2.30 Paper feed rollers (MPT pick-up roller/MPT feed roller/MPT retard roller)
4.2.31 Fuser Connector
4.2.32 Guide Assy.-Side-L / Rack-L
4.2.33 Guide Assy.-Side-R / Rack-R
4.2.34 Cover-FaceUP-B
4.3 Portions Lubricated

5. REGULAR MAINTENANCE
5.1 Cleaning
5.2 Cleaning of LED lens array
5.3 Cleaning the Feed rollers and the Retard roller
5.4 Cleaning the MPT Feed rollers
5.5 Cleaning Rollers in the ADF
5.6 Cleaning the rollers inside of the ADF
5.7 Cleaning the Document Glass

6. CONNECTION DIAGRAMS
6.1 Connection diagram
6.2 Board Layout
6.3 Resistance value
6.4 Firmware Information
6.4.1 Maintenance board indication stamp

Parts Catalog.