Canon Color imageCLASS MF644Cdw MF643Cdw MF642Cdw MF641Cw Service Manual and Parts Catalog


Accurate 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 Canon Color imageCLASS MF644Cdw MF643Cdw MF642Cdw MF641Cw contain clear instructions and procedures on how to fix the problems occurring in your equipment.
The information contained in this repair manual is necessary for the repair, but also prevention, resulting in a longer life of your equipment.
Format of the manual: PDF, makes it easy to navigate, instant download and print. English language.
To see what contain, please read table of contents:

Content for Service Manual:
SAFETY PRECAUTIONS
Laser
Laser Safety
How to Handle the Laser Scanner Unit
Power Supply / Lithium Battery
Power Supply
Notes When Handling a Lithium Battery
Toner Safety
About Toner
Handling Adhered Toner
Notes on works
Points to Note Before Servicing
Points to Note at Cleaning
Notes on Assembly/Disassembly

1. PRODUCT OVERVIEW
Product Lineup
Host Machine
Option
Features
Specifications
Specifications of Host Machine
Reader Specifications
ADF Specifications *
FAX Specifications (FAX model only)
Paper Type
Paper Size
Parts Name
External view
Cross Section View
Control Panel

2. TECHNICAL EXPLANATION (Device)
Basic Configuration
Functional Configuration
Original Exposure/Feed System
Original Exposure System
Original Feed System (When using the ADF)
Laser Exposure System
Functional Configuration
Failure Detection
Controller System
Configuration/Function
Main Controller PCB
Engine Controller PCB
Motor Control
Door Open Detection
Fan Control
Low-voltage Power Supply Control
Protection Function
Power-saving Mode
Image Formation System
Major Components
Image Formation Process
ITB Unit
High Voltage Power Supply Control
Image Stabilization Control
Cartridge
Pickup Feed System
Overview
Parts Configuration
Drive Configuration
Layout of Sensors
Lifter Control
Cassette Detection
Cassette Pickup Control
Multi-purpose Tray Pickup Control
Skew Correction
Paper Width Detection
Arch Control
Jam Detection
Fixing System
Functional Configuration
Fixing Temperature Control
Fixing pressure/pressure release control
Protection Function
Fixing Assembly Failure Detection

3. TECHNICAL EXPLANATION (System)
Overview of System Management
Version Upgrade
Function Overview
Version Upgrade Using UST
Version Upgrade via Internet
Version Upgrade Using a USB Flash Drive (Released Only in Special Cases)
Setting Information Export/Import Function (DCM)
Overview
Import/Export Procedure from [Settings/Registration] of Remote UI
Procedure for Exporting/Importing Service Mode Setting Information
Monitoring Function (e-Maintenance/imageWARE Remote)
Overview of System
Servicing Notes
Setting Procedure
Maintenace
Security Functions
Security Policy Function

4. PERIODICAL SERVICE
Periodically Replaced Parts
Consumable Parts
Periodical Services

5. PARTS REPLACEMENT AND CLEANING
List of Parts
Major Units
Layout Drawing of Electrical Components
External Cover System
Removing the Toner Cartridge
Removing the Left Cover
Removing the Right Cover
Removing the Rear Cover Unit
Removing the Rear Cover Unit (Simplex)
Removing the Cartridge Cover
Removing the Cartridge Tray
Removing the Upper Left Front Cover
Removing the Upper Right Front Cover
Removing the Right Front Upper Cover
Removing the Upper Cover Unit
Removing the Rear Lower Cover
Removing the Rear Upper Cover
Original Exposure/Feed System
Removing the ADF Unit + Reader Unit
Removing the Copyboard Cover
Separating the ADF Unit + Reader Unit
Removing the ADF Roller Unit
Removing the ADF Pickup Roller
Removing the ADF Separation Roller
Removing the ADF Separation Pad Unit
Removing the ADF Upper Cover Unit
Removing the ADF Feed Unit
Removing the ADF CIS (For the duplex scanning model)
Removing the ADF Drive Unit
Removing the Reader Upper Cover Unit
Removing the Reader CIS
Removing the Reader CIS Timing Belt
Removing the Reader Scanner Motor
Controller System
Removing the Controller Cover
Removing the Wireless LAN PCB (Wi-Fi model only)
Removing the Wireless LAN Support Plate (Wi-Fi model only)
Removing the Main Controller PCB
Removing the Main Controller Support Plate
Removing the Engine Controller PCB
Removing the Low Voltage Power Supply Unit
Removing the Main Motor
Removing the Control Panel Unit
Removing the NCU PCB (Fax model only)
Removing the NCU Support Plate
Removing the Speaker (Fax model only)
Removing the USB PCB
Removing the Fan
Removing the Power Switch Unit
Image Formation System
Removing the Main Drive Assembly
Removing the Secondary Transfer Roller
Removing the Secondary Transfer Feed Unit
Removing the Secondary Transfer Feed Unit (Simplex)
Removing the ITB Unit
Removing the ITB Unit (Simplex)
Removing the Color Displacement Density Sensor Unit
Fixing System
Removing the Fixing Assembly
Removing the Fixing Assembly (Simplex)
Removing the Fixing Motor
Pickup Feed Delivery System
Removing the Delivery Sensor Unit
Removing the Cassette Pickup Roller/Feed Roller Unit
Removing the Cassette Separation Roller Unit
Removing the Duplex Reverse Drive Unit

6. ADJUSTMENT
Location where the service label is affixed
Adjustment at Parts Replacement
After Replacing the Control Panel
After Replacing the ITB Unit
After Replacing the Color Displacement Density Sensor Unit
Engine Controller PCB
Main Controller PCB
After Replacing the ADF Unit
After Replacing the Reader CIS Unit
After Replacing the Reader Upper Cover Unit
After Replacing the Reader Unit
After Replacing the ADF CIS Unit

7. TROUBLESHOOTING
Test Print
Engine Test Print
Controller test print
Cartridge Log Report
Troubleshooting Items
Remedy for Image Failure
Recurring faulty image
Confirming nip width
Action When Hue Differs between the Front and Back Sides of the Output Image at Duplex Copy (For the duplex scanning ADF model)
Debug Log
Function Overview
Conditions for collecting logs
Collection procedure

8. ERROR/JAM/ALARM
Overview
Outline
Error Code
Error Code Details
Jam Code
Jam code
Alarm Code
Alarm Code Details

9. SERVICE MODE
Overview
Entering Service Mode
Backing up Service Mode
Service Label
Remote UI Service Mode
Service Mode Explanation
COPIER (Service mode for printer)
DISPLAY (State display mode)
I/O (I/O display mode)
ADJUST (Adjustment mode)
FUNCTION (Operation / inspection mode)
OPTION (Specification setting mode)
COUNTER (Counter mode)
FEEDER (ADF service mode)
ADJUST (Adjustment mode)
FUNCTION (Operation / inspection mode)
TESTMODE (Service mode for test print, operation check, etc.)
PRINT (Print test mode)
FAX (FAX test mode)
FAX (FAX service mode)
SSSW (Bit switch registration mode)
MENU (Menu switch registration mode)
NUM (Numeric parameter setting mode)
NCU (NCU parameter setting mode)

10. INSTALLATION
MiCARD Attachment Kit-B1
Points to Note at Installation
Installation Outline Drawing
Checking the Contents
Check Item When Turning OFF the Main Power
Installation Procedure

APPENDICES
Service Tools
Special Tools
Solvents and Oil List
General Circuit Daigram
Genaral Circuit Diagram (1)
General Circuit Diagram (2)
General Circuit Diagram (3)
List of Items Which Can Be Imported
Service Mode
Backup Data List
Soft counter specifications

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Content for Parts Catalog:
A1A ASSEMBLY LOCATION DIAGRAM (SINGLE PASS ADF MODEL)
A1B ASSEMBLY LOCATION DIAGRAM (SINGLE SIDE ADF MODEL)
A1C ASSEMBLY LOCATION DIAGRAM (COPYBOARD MODEL)
A2 OPTIONS PARTS CATALOG LIST
001C ACCESSORIES (MF644Cdw)
001D ACCESSORIES (MF642Cdw)
001H ACCESSORIES (MF645Cx)
001U ACCESSORIES (MF641Cw)
100C EXTERNAL COVERS, PANELS, ETC. (MF645Cx)
100D EXTERNAL COVERS, PANELS, ETC. (MF644Cdw)
100F EXTERNAL COVERS, PANELS, ETC. (MF642Cdw)
100U EXTERNAL COVERS, PANELS, ETC. (MF641Cw)
101B INTERNAL COMPONENTS 1 (SINGLE PASS ADF MODEL, SINGLE SIDE ADF MODEL)
101C INTERNAL COMPONENTS 1 (COPYBOARD MODEL)
102B INTERNAL COMPONENTS 2 (120V SINGLE PASS ADF, SINGLE SIDE ADF)
102C INTERNAL COMPONENTS 2 (230V SINGLE PASS ADF MODEL)
102F INTERNAL COMPONENTS 2 (COPYBOARD MODEL)
103C INTERNAL COMPONENTS 3 (120V SINGLE PASS ADF MODEL)
103D INTERNAL COMPONENTS 3 (230V SINGLE PASS ADF MODEL)
103E INTERNAL COMPONENTS 3 (SINGLE SIDE ADF MODEL)
103G INTERNAL COMPONENTS 3 (COPYBOARD MODEL)
160 READER/ADF ASSEMBLY
161A PAPER FEEDER ASSEMBLY (SINGLE PASS ADF MODEL)
161B PAPER FEEDER ASSEMBLY (SINGLE SIDE ADF MODEL)
162 READER/COPYBOARD ASSEMBLY
400C READER ASSEMBLY (SINGLE PASS ADF MODEL)
400D READER ASSEMBLY (SINGLE SIDE ADF MODEL)
400E READER ASSEMBLY (COPYBOARD MODEL)
ZZA MECHANICAL STANDARD PARTS (HOW TO USE)
ZZB MECHANICAL STANDARD PARTS (SCREWS)
ZZC MECHANICAL STANDARD PARTS (BOLTS)
ZZD MECHANICAL STANDARD PARTS (NUTS)
ZZE MECHANICAL STANDARD PARTS (RETAINING RINGS)