Canon iR C3200 Series, Service Manual, Page: 653 / 1216

Contents
Contents
12.1 Control Panel ................................................................................................................................................. 12-1
12.1.1 Outline .................................................................................................................................................... 12-1
12.1.2 LCD Processing ...................................................................................................................................... 12-1
12.1.3 LCD Contras Adjustment ....................................................................................................................... 12-1
12.1.4 Functions of the Control Panel CPU ...................................................................................................... 12-2
12.2 Counters ......................................................................................................................................................... 12-3
12.2.1 Outline .................................................................................................................................................... 12-3
12.2.2 Signal-Sided Print and 2nd Side of a Double-Sided Print ...................................................................... 12-5
12.2.3 Side of a Duplex Print (duplex model only) ........................................................................................... 12-5
12.3 Fans ............................................................................................................................................................... 12-6
12.3.1 Outline .................................................................................................................................................... 12-6
12.3.2 Sequence of Operations (fan) ................................................................................................................. 12-7
12.4 Power Supply ................................................................................................................................................ 12-8
12.4.1 Power Supply ......................................................................................................................................... 12-8
12.4.1.1 Timing of Power Supply ................................................................................................................. 12-8
12.4.1.2 Wiring to Various Accessories ........................................................................................................ 12-8
12.4.1.3 Route of Power Supply .................................................................................................................... 12-9
12.4.1.4 Power Supply Route lnside the Printer Unit .................................................................................. 12-10
12.4.2 Rated Output of DC Power Supply PCB .............................................................................................. 12-11
12.4.2.1 Rated Output of the Machine Power Suppy .................................................................................. 12-11
12.4.3 Protection Function .............................................................................................................................. 12-12
12.4.3.1 Protective Mechanisms .................................................................................................................. 12-12
12.4.4 Backup Battery ..................................................................................................................................... 12-12
12.4.4.1 Backup Power Supply ................................................................................................................... 12-12
12.4.5 Energy-Saving Function ....................................................................................................................... 12-13
12.4.5.1 Outline ........................................................................................................................................... 12-13
12.5 Parts Replacement Procedure ...................................................................................................................... 12-15
12.5.1 Fixing Drive Unit ................................................................................................................................. 12-15
12.5.1.1 Removing the Upper Rear Cover .................................................................................................. 12-15
12.5.1.2 Removing the Lower Rear Cover .................................................................................................. 12-15
12.5.1.3 Removing the Left Upper Rear Cover ........................................................................................... 12-15
12.5.1.4 Removing the Controller Box Cover ............................................................................................. 12-15
12.5.1.5 Removing the DC Controller PCB Cover ..................................................................................... 12-15
12.5.1.6 Opening the Main Controller Box ................................................................................................. 12-15
12.5.1.7 Removing the Fixing Heat Discharge Fan .................................................................................... 12-16
12.5.1.8 Removing the High-Voltage Unit ................................................................................................. 12-17
12.5.1.9 Removing the Left Lower Rear cover ........................................................................................... 12-17
12.5.1.10 Removing the Secondary Transfer High-Voltage Unit ............................................................... 12-17
12.5.1.11 Removing the Fixing Drive Unit ................................................................................................. 12-18
12.5.2 Developing Drive Unit ......................................................................................................................... 12-18
12.5.2.1 Removing the Upper Rear Cover .................................................................................................. 12-18
12.5.2.2 Removing the Lower Rear Cover .................................................................................................. 12-19
12.5.2.3 Removing the Left Upper Rear Cover ........................................................................................... 12-19
12.5.2.4 Removing the Controller Box Cover ............................................................................................. 12-19
12.5.2.5 Removing the DC Controller PCB Cover ..................................................................................... 12-19
12.5.2.6 Opening the Main Controller Box ................................................................................................. 12-19
12.5.2.7 Removing the DC Controller Mounting ........................................................................................ 12-20
12.5.2.8 Removing the Fixing Heat Discharge Fan .................................................................................... 12-21
12.5.2.9 Removing the Machine Heat Discharge Fan ................................................................................. 12-21