Canon 3370 Series Service Manual page 57

Contents
3.1 EXTERNAL AND CONTROLS SYSTEM ..................................................................................................................3-1
3.1.1 Rear Cover ................................................................................................................................................................................... 3-1
3.1.1.1 Preparation for removing the rear cover unit ..................................................................................................................................................3-1
3.1.1.2 Removing the rear cover unit ..........................................................................................................................................................................3-1
3.1.2 Right Cover .................................................................................................................................................................................. 3-1
3.1.2.1 Detaching the right cover ................................................................................................................................................................................3-1
3.1.3 Left Cover .................................................................................................................................................................................... 3-2
3.1.3.1 Detaching the left cover ..................................................................................................................................................................................3-2
3.1.4 Upper Cover................................................................................................................................................................................. 3-3
3.1.4.1 Preparation for detaching the upper cover unit ...............................................................................................................................................3-3
3.1.4.2 Detaching the upper cover ..............................................................................................................................................................................3-3
3.1.4.3 Detaching the upper cover ..............................................................................................................................................................................3-3
3.1.5 Front Cover .................................................................................................................................................................................. 3-4
3.1.5.1 Preparation for detaching the front cover unit ................................................................................................................................................3-4
3.1.5.2 Detaching the front cover unit.........................................................................................................................................................................3-4
3.1.6 Main Drive Unit ........................................................................................................................................................................... 3-5
3.1.6.1 Preparation for removing the main drive assembly ........................................................................................................................................3-5
3.1.6.2 Removing the main drive assembly ................................................................................................................................................................3-5
3.1.7 Duplexing Drive Unit .................................................................................................................................................................. 3-6
3.1.7.1 Removing the duplexing drive assembly ........................................................................................................................................................3-6
3.1.8 Operation Panel Unit.................................................................................................................................................................... 3-7
3.1.8.1 Preparation for detaching the control panel ....................................................................................................................................................3-7
3.1.8.2 Detaching the control panel ............................................................................................................................................................................3-7
3.1.8.3 Detaching the control panel ............................................................................................................................................................................3-7
3.1.9 Engine controller board................................................................................................................................................................ 3-8
3.1.9.1 Preparation for removing the engine controller PCB......................................................................................................................................3-8
3.1.9.2 Removing the engine controller PCB .............................................................................................................................................................3-8
3.1.10 Duplexing Driver Board ............................................................................................................................................................ 3-9
3.1.10.1 Preparation for removing the duplexing driver PCB ....................................................................................................................................3-9
3.1.10.2 Removing the duplexing driver PCB ..........................................................................................................................................................3-10
3.1.11 Video Controller Board............................................................................................................................................................ 3-10
3.1.11.1 Removing the video controller PCB ...........................................................................................................................................................3-10
3.1.11.2 Removing the video controller PCB ...........................................................................................................................................................3-10
3.1.12 USB Board ............................................................................................................................................................................... 3-11
3.1.12.1 Removing the USB PCB.............................................................................................................................................................................3-11
3.1.13 Door Switch ............................................................................................................................................................................. 3-12
3.1.13.1 Removing the door switch ..........................................................................................................................................................................3-12
3.1.14 Main Body Fan ........................................................................................................................................................................ 3-12
3.1.14.1 Preparation for removing the fan ................................................................................................................................................................3-12
3.1.14.2 Removing the fan ........................................................................................................................................................................................3-12
3.2 LASER EXPOSURE SYSTEM...................................................................................................................................3-13
3.2.1 Laser Scanner Unit..................................................................................................................................................................... 3-13
3.2.1.1 Preparation for removing the laser scanner unit ...........................................................................................................................................3-13
3.2.1.2 Removing the laser scanner unit ...................................................................................................................................................................3-13
3.3 IMAGE FORMATION SYSTEM ...............................................................................................................................3-13
3.3.1 Transfer Charging Roller ........................................................................................................................................................... 3-13
3.3.1.1 Removing the transfer charging roller ..........................................................................................................................................................3-13
3.4 PICKUP AND FEEDING SYSTEM ...........................................................................................................................3-13
3.4.1 Cassette Pickup Roller ............................................................................................................................................................... 3-13
3.4.1.1 Removing the cassette pickup roller .............................................................................................................................................................3-13
3.4.2 Cassette Pickup solenoid............................................................................................................................................................ 3-14
3.4.2.1 Preparation for removing the cassette pickup solenoid.................................................................................................................................3-14
3.4.2.2 Removing the cassette pickup solenoid ........................................................................................................................................................3-14
Contents