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C5550
Oki c5550 Maintenance Manual
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Oki c5550 Maintenance Manual
Also see for C5550:
User guide
Table of content
Contents
maintenance manual
TH Rev
Table Of Contents
Table Of Contents
Table Of Contents
Table Of Contents
confIGURatIon
MFP configuration
Composition of optional items
Specifications
Interface specifications
Network interface specifications
Network interface connectors and cables
eXPLanatIon of oPeRatIon
Printing process
Theory of Operation
Main Control Unit
Main Control Circuit
Video Circuit
Panel and LCD Module Circuit
Sensor Input
InstaLLatIon
Unpacking method
MFP Installation Instructions
Listing of component units and accessories
Assembly Procedure
Connection of power cable
Installation of optional items
Confirmation of recognition of optional items
Menu Map print
Connection methods
Confirmation of paper used by the user
RePLaceMent of PaRts
Part replacement methods
Right side cover
Detachment methods of the scanner and printer
Scanner
ASS'Y PAPER TRAY
ASS'Y PAD
ASS'Y HINGE LIGHT/HEAVY
ADF LEVER RELEASE
ASS'Y ADF DOCUMENT (with Hinge)
Flatbed unit
ASS'Y MAIN BOARD, ASS'Y STAND-L, R
ASS'Y FLATBED UNIT
Printer
Rear cover
LED Assy/LED Assy springs
Control PCB
Print engine controller PCB
Top cover assembly
Top cover
Controller Panel Assy
Board PRP/ Top Cover Handle
Low-Voltage Power Supply / Low-Voltage Fan Hopping Motor / Fuser Motor
Guide Eject Assy / Color Register Assy / Board-PRY
Fan (Fuser)/ Belt Motor / High-Voltage Power Supply Board Cover-Open Switch
MPT Assy
Feeder Unit / Board-RSF/ MPT Hopping Roller / Frame Assy Separator Cover Front
Board-PRZ Lift-Up Motor/Solenoid/Paper-End Sensor
Feed Roller
Shaft Eject Assy(FU) / Shaft Eject Assy(FD) / Eject Sensor
Fuser Unit
Belt Unit
Lubricating points
Precautions for Main Board Replacement
Steps of importing the exported data
Deleting Server Profiles
PaneL sWItcH fUnctIons
LED/LCD
Control Panel
MaIntenance MenUs
Maintenance utility
Functions of user's maintenance menu
Self-diagnostic mode
Deactivation of self-diagnostic mode
Motor clutch test
Test print
Color registration adjustment test
Print density adjustment test
Indication of consumable part counters
Indication of printed page counters
Setup of self-diagnostic function
Indication of LED head serial number
Details of panel indications
Various types of print on the individual printer equipped with controller
Setup after replacement of parts
Setup of EEPROM after replacement of TBR PCB
Setup of destination
Updating Scanner Firmware
Updating by Running the Scanner in Loader Mode
PeRIoDIcaL MaIntenance
Cleaning of pickup rollers
Internal cleaning of printer
Preventive Maintenance
Cleaning the ADF
Replacing the ADF pad
tRoUBLesHootInG PRoceDURes
LCD Message List
Preparing for troubleshooting
Image Problem Troubleshooting
Actions after forced initialization of HDD/Flash
Network Troubleshooting
Check of fuses
Troubleshooting
Copy operation
Email operation
Control panel operation
Tables
LCD does not display
Printer does not print
C5550MFP is not connected to the network
Error message
Error message during printing and copying
Information codes during networking
Error message during E-mailing
Error message during filing
Error message on fax
Scanner Shipment Setting List
Menu Settings
Additional Settings
Fax Service Mode
connectIon DIaGRaMs
Component layout
Oki Data CONFIDENTIAL
44158801TH Rev.2
110 /
4.2.5.18 Fuser Unit
(1)
Open the scanner.
(2)
Open the top cover.
(3)
Lift up the lock levers
(2, blue) of the fuser unit in the direction of the arrow, and remove
fuser unit
.
(Blue)
Top cover
Scanner
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