Canon i-SENSYS MF4300dn Service Manual page 10

Contents
9.3.5.1 Preparation for Removing the Upper Cover............................................................................................................................. 9- 4
9.3.5.2 Removing the Upper Cover ..................................................................................................................................................... 9- 4
9.3.6 Cartridge Cover........................................................................................................................................................9- 4
9.3.6.1 Preparation for Removing the Printer Cover............................................................................................................................ 9- 4
9.3.6.2 Removing the Printer Cover..................................................................................................................................................... 9- 4
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- 5
9.3.8.1 Preparation for Removing the SCNT PCB............................................................................................................................... 9- 5
9.3.8.2 Removing the SCNT PCB........................................................................................................................................................ 9- 5
9.3.8.3 Actions At Replacing the SCNT PCB....................................................................................................................................... 9- 5
9.3.9 DCNT Board ............................................................................................................................................................9- 6
9.3.9.1 Preparation for Removing the DCNT PCB............................................................................................................................... 9- 6
9.3.9.2 Removing the DCNT PCB ....................................................................................................................................................... 9- 6
9.3.10 Power Supply PCB.................................................................................................................................................9- 7
9.3.10.1 Preparation for Removing the Power Supply PCB................................................................................................................. 9- 7
9.3.10.2 Removing the Power Supply PCB ......................................................................................................................................... 9- 7
9.3.11 High-voltage Power Supply Board .........................................................................................................................9- 7
9.3.11.1 Preparation for Removing the High Voltage PCB .................................................................................................................. 9- 7
9.3.11.2 Removing the High Voltage PCB ........................................................................................................................................... 9- 8
Chapter 10 Maintenance and Inspection
10.1 Periodically Replaced Parts.................................................................................................................... 10- 1
10.1.1 Periodically Replaced Parts .................................................................................................................................10- 1
10.2 Periodical Service ................................................................................................................................... 10- 1
10.2.1 Periodically Service Items ....................................................................................................................................10- 1
10.3 Cleaning ................................................................................................................................................. 10- 1
10.3.1 Cleaning Items .....................................................................................................................................................10- 1
10.3.2 Cleaning Method (External Covers) .....................................................................................................................10- 1
10.3.3 Cleaning Method (Reader Unit) ...........................................................................................................................10- 2
10.3.4 Cleaning Method (Pressure Roller)......................................................................................................................10- 3
Chapter 11 Measurement and Adjustments
11.1 Basic Adjustments .................................................................................................................................. 11- 1
11.1.1 Paper Margin Adjustment.....................................................................................................................................11- 1
11.1.2 Reading Adjustment.............................................................................................................................................11- 1
11.1.3 Print Adjustment...................................................................................................................................................11- 2
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- 3
12.1.2.1 List of Sensors ..................................................................................................................................................................... 12- 3
12.1.3 PCBs ....................................................................................................................................................................12- 5
12.1.3.1 List of PCBs ......................................................................................................................................................................... 12- 5
Chapter 13 Error Code
13.1 Error Code .............................................................................................................................................. 13- 1
13.1.1 Error Code Outline ...............................................................................................................................................13- 1
13.1.2 Error Code............................................................................................................................................................13- 1
Chapter 14 Service Mode