Canon iR6570 series Service Manual page 403

Contents
10.1 Control Panel..............................................................................................................................................................10-1
10.1.1 Overview.................................................................................................................................................................................. 10-1
10.1.2 LCD Indication Processing ...................................................................................................................................................... 10-1
10.1.3 Adjusting the LCD Contrast .................................................................................................................................................... 10-1
10.1.4 Functions of the Control Panel CPU........................................................................................................................................ 10-1
10.2 Counters .....................................................................................................................................................................10-2
10.2.1 Soft Counters ........................................................................................................................................................................... 10-2
10.3 Fans ............................................................................................................................................................................10-4
10.3.1 Arrangement, Functions, and Error Codes .............................................................................................................................. 10-4
10.3.2 Controlling the Speed of the Fans............................................................................................................................................ 10-5
10.3.3 Sequence of Operation ............................................................................................................................................................. 10-5
10.4 Power Supply System ................................................................................................................................................10-7
10.4.1 Power Supply ........................................................................................................................................................................... 10-7
10.4.1.1 Overview .....................................................................................................................................................................................................10-7
10.4.1.2 Distribution of Power and the Switches......................................................................................................................................................10-7
10.4.2 Rated Output of the DC Power Supply PCB ........................................................................................................................... 10-9
10.4.2.1 Rated Output of the Power Supply PCB .....................................................................................................................................................10-9
10.4.2.2 Rated Output of the Accessories Power Supply PCB.................................................................................................................................10-9
10.4.3 Protection Function ................................................................................................................................................................ 10-10
10.4.3.1 Protective Functions..................................................................................................................................................................................10-10
10.4.4 Backup Battery....................................................................................................................................................................... 10-10
10.4.4.1 Backup Battery..........................................................................................................................................................................................10-10
10.4.5 Energy-Saving Function ........................................................................................................................................................ 10-10
10.4.5.1 Outline.......................................................................................................................................................................................................10-10
10.5 Parts Replacement Procedure...................................................................................................................................10-12
10.5.1 Left Deck Drive Assembly .................................................................................................................................................... 10-12
10.5.1.1 Removing the Rear Cover (lower) ............................................................................................................................................................10-12
10.5.1.2 Removing the High-Voltage Power Supply PCB .....................................................................................................................................10-12
10.5.1.3 Left Deck Drive Assembly........................................................................................................................................................................10-12
10.5.2 Manual Feed Pickup Drive Assembly ................................................................................................................................... 10-12
10.5.2.1 Removing the Rear Cover (upper) ............................................................................................................................................................10-12
10.5.2.2 Removing the Rear Cover (lower) ............................................................................................................................................................10-13
10.5.2.3 Removing the Main Controller Box..........................................................................................................................................................10-13
10.5.2.4 Removing the Manual Feeder Pickup Drive Assembly ............................................................................................................................10-14
10.5.3 Vertical Path Drive Assembly ............................................................................................................................................... 10-14
10.5.3.1 Removing the Rear Cover (upper) ............................................................................................................................................................10-14
10.5.3.2 Removing the Rear Cover (lower) ............................................................................................................................................................10-14
10.5.3.3 Removing the Main Controller Box..........................................................................................................................................................10-15
10.5.3.4 Removing the Right Cover (lower rear)....................................................................................................................................................10-15
10.5.3.5 Removing the Waste Toner Bottle Holder................................................................................................................................................10-16
10.5.3.6 Removing the Motor Driver PCB Base ....................................................................................................................................................10-16
10.5.3.7 Removing the Vertical Path Drive Assembly ...........................................................................................................................................10-16
10.5.4 Waste Toner Drive Assembly ................................................................................................................................................ 10-17
10.5.4.1 Removing the Rear Cover (upper) ............................................................................................................................................................10-17
10.5.4.2 Removing the Rear Cover (lower) ............................................................................................................................................................10-17
10.5.4.3 Removing the Main Controler Box...........................................................................................................................................................10-17
10.5.4.4 Removing the Waste Toner Bottle Holder................................................................................................................................................10-18
10.5.4.5 Removing the DC Controller Base ...........................................................................................................................................................10-19
10.5.4.6 Removing the Waste Toner Drive Assembly............................................................................................................................................10-19
10.5.5 Main Drive Assembly ............................................................................................................................................................ 10-20
10.5.5.1 Fitting the Drive Belt ................................................................................................................................................................................10-20
10.5.6 Cassette Pickup Drive Assembly ........................................................................................................................................... 10-20
10.5.6.1 Removing the Rear Cover (upper) ............................................................................................................................................................10-20
Contents