Canon ImageCLASS MF4690 Service Manual - page 10
Contents
9.3.6.1 Preparation for Removing the Printer Cover............................................................................................................................ 9- 3
9.3.6.2 Removing the Printer Cover..................................................................................................................................................... 9- 3
9.3.7 Operation Panel Unit................................................................................................................................................9- 4
9.3.7.1 Removing the Control Panel Unit............................................................................................................................................. 9- 4
9.3.8 SCNT Board.............................................................................................................................................................9- 4
9.3.8.1 Preparation for Removing the SCNT Board............................................................................................................................. 9- 4
9.3.8.2 Removing the SCNT Board ..................................................................................................................................................... 9- 4
9.3.8.3 Actions At Replacing the SCNT Board .................................................................................................................................... 9- 4
9.3.9 DCNT Board ............................................................................................................................................................9- 4
9.3.9.1 Preparation for Removing the DCNT Board ............................................................................................................................ 9- 4
9.3.9.2 Removing the DCNT Board ..................................................................................................................................................... 9- 4
9.3.10 Analog Processor PCB ..........................................................................................................................................9- 6
9.3.10.1 Preparation for Removing the Analog processor PCB ........................................................................................................... 9- 6
9.3.10.2 Removing the Analog processor PCB.................................................................................................................................... 9- 6
9.3.11 NCU Board.............................................................................................................................................................9- 6
9.3.11.1 Preparation for Removing the NCU Board ............................................................................................................................. 9- 6
9.3.11.2 Removing the NCU Board...................................................................................................................................................... 9- 6
9.3.12 Power Supply PCB.................................................................................................................................................9- 6
9.3.12.1 Preparation for Removing the Power Supply Board .............................................................................................................. 9- 6
9.3.12.2 Removing the Power Supply Board ....................................................................................................................................... 9- 6
9.3.13 High-voitage Power Supply PCB ...........................................................................................................................9- 6
9.3.13.1 Preparation for Removing the High Voltage Power Supply Board ......................................................................................... 9- 6
9.3.13.2 Removing the High Voltage Power Supply Board.................................................................................................................. 9- 6
9.3.14 Motor Driver PCB ...................................................................................................................................................9- 7
9.3.14.1 Preparation for Removing the Motor driver PCB.................................................................................................................... 9- 7
9.3.14.2 Removing the Motor driver PCB ............................................................................................................................................ 9- 7
Chapter 10 Maintenance and Inspection
10.1 Periodically Replaced Parts.................................................................................................................... 10- 1
10.1.1 Periodically Replaced Parts .................................................................................................................................10- 1
10.2 Consumables.......................................................................................................................................... 10- 1
10.2.1 Consumable .........................................................................................................................................................10- 1
10.3 Periodical Service ................................................................................................................................... 10- 1
10.3.1 Periodically Service Items ....................................................................................................................................10- 1
10.4 Cleaning ................................................................................................................................................. 10- 1
10.4.1 Cleaning Items .....................................................................................................................................................10- 1
10.4.2 Cleaning Method (External Covers) .....................................................................................................................10- 1
10.4.3 Cleaning Method (Reader Unit) ...........................................................................................................................10- 2
10.4.4 Cleaning Method (Pressure Roller)......................................................................................................................10- 2
Chapter 11 Measurement and Adjustments
11.1 Scanning System.................................................................................................................................... 11- 1
11.1.1 Procedure after Replacing the CIS ......................................................................................................................11- 1
11.1.2 Procedure after Replacing the Copyboard Glass.................................................................................................11- 1
11.2 Electrical Adjustments ............................................................................................................................ 11- 1
11.2.1 Procedure after Replacing the SCNT board ........................................................................................................11- 1
Chapter 12 Correcting Faulty Images
12.1 Outline of Electrical Components ........................................................................................................... 12- 1
12.1.1 Clutch/Solenoid/Motor/Fan...................................................................................................................................12- 1
12.1.1.1 List of Solenoids/Motors ....................................................................................................................................................... 12- 1
12.1.2 Sensor..................................................................................................................................................................12- 2
12.1.2.1 List of Sensors ..................................................................................................................................................................... 12- 2
12.1.3 PCBs ....................................................................................................................................................................12- 3
12.1.3.1 List of PCBs ......................................................................................................................................................................... 12- 3