Canon i-SENSYS LBP5300 Series Service Manual page 9

2.8.2.5 ETB motor failure detection ................................................................................................................................................... 2- 40
2.8.2.6 Fixing motor failure detection................................................................................................................................................. 2- 40
2.8.2.7 Exhaust fan failure detection.................................................................................................................................................. 2- 40
2.8.2.8 Duplexing cooling fan failure detection .................................................................................................................................. 2- 41
2.8.3 Video Controller PCB ............................................................................................................................................ 2- 41
2.8.3.1 Outline.................................................................................................................................................................................... 2- 41
2.8.3.2 Overview ................................................................................................................................................................................ 2- 41
2.8.3.3 Outline of the Block................................................................................................................................................................ 2- 42
2.8.3.4 Outline of the Block................................................................................................................................................................ 2- 43
Chapter 3 DISASSEMBLY AND ASSEMBLY
3.1 EXTERNAL AND CONTROLS SYSTEM ...................................................................................................3- 1
3.1.1 Rear Cover .............................................................................................................................................................. 3- 1
3.1.1.1 Removing the Rear Cover ....................................................................................................................................................... 3- 1
3.1.2 Right Cover.............................................................................................................................................................. 3- 1
3.1.2.1 Preparation for Removing the Right Cover .............................................................................................................................. 3- 1
3.1.2.2 Removing the Right Cover....................................................................................................................................................... 3- 1
3.1.3 Left Cover ................................................................................................................................................................ 3- 1
3.1.3.1 Preparation for Removing the Left Cover ................................................................................................................................ 3- 1
3.1.3.2 Removing the Left Cover ......................................................................................................................................................... 3- 1
3.1.4 Upper Cover ............................................................................................................................................................ 3- 2
3.1.4.1 Preparation for Removing the Upper Cover............................................................................................................................. 3- 2
3.1.4.2 Removing the Upper Cover ..................................................................................................................................................... 3- 2
3.1.5 Front Cover.............................................................................................................................................................. 3- 2
3.1.5.1 Preparation for Removing the Front Cover .............................................................................................................................. 3- 2
3.1.5.2 Removing the Front Cover....................................................................................................................................................... 3- 2
3.1.6 Main Drive Unit ........................................................................................................................................................ 3- 3
3.1.6.1 Preparation for Removing the Main Drive Unit ........................................................................................................................ 3- 3
3.1.6.2 Removing the Main Drive Unit ................................................................................................................................................. 3- 3
3.1.6.3 Points to Note When Mounting Main Drive Unit....................................................................................................................... 3- 5
3.1.7 Operation Panel Unit ............................................................................................................................................... 3- 7
3.1.7.1 Preparation for Removing the Control Panel ........................................................................................................................... 3- 7
3.1.7.2 Removing the Control Panel .................................................................................................................................................... 3- 7
3.1.8 DC Controller PCB .................................................................................................................................................. 3- 7
3.1.8.1 Before Removing the DC Controller PCB ................................................................................................................................ 3- 7
3.1.8.2 Preparation for Removing the DC Controller PCB................................................................................................................... 3- 7
3.1.8.3 Removing the DC Controller PCB............................................................................................................................................ 3- 7
3.1.9 Video Controller PCB .............................................................................................................................................. 3- 8
3.1.9.1 Preparation for Removing the Video Controller PCB............................................................................................................... 3- 8
3.1.9.2 Preparation for Removing the Video Controller PCB............................................................................................................... 3- 8
3.1.9.3 Removing the Video Controller PCB........................................................................................................................................ 3- 8
3.1.9.4 Removing the Video Controller PCB........................................................................................................................................ 3- 8
3.1.10 Memory Controller PCB......................................................................................................................................... 3- 9
3.1.10.1 Before Removing the Memory Controller PCB ...................................................................................................................... 3- 9
3.1.10.2 Preparation for Removing the Memory Controller PCB ......................................................................................................... 3- 9
3.1.10.3 Removing the Memory Controller PCB .................................................................................................................................. 3- 9
3.1.11 Interface Controller PCB...................................................................................................................................... 3- 10
3.1.11.1 Removing the Network Interface Board ............................................................................................................................... 3- 10
3.1.12 Duplexing Driver PCB.......................................................................................................................................... 3- 10
3.1.12.1 Preparation for Removing the Duplexing Driver PCB .......................................................................................................... 3- 10
3.1.12.2 Removing the Duplexing Driver PCB ................................................................................................................................... 3- 10
3.1.13 Low-Voltage Power Supply Assembly ................................................................................................................. 3- 10
3.1.13.1 Preparation for Removing the Low-Voltage Power Supply PCB.......................................................................................... 3- 10
3.1.13.2 Removing the Low-Voltage Power Supply PCB .................................................................................................................. 3- 10
3.1.14 High-voltage PCB ................................................................................................................................................ 3- 11
3.1.14.1 Preparation for Removing the High-Voltage Power Supply PCB......................................................................................... 3- 11
3.1.14.2 Removing the High-Voltage Power Supply PCB.................................................................................................................. 3- 11
3.1.15 Cooling Fan ......................................................................................................................................................... 3- 11
3.1.15.1 Preparation for Removing the Cooling Fan.......................................................................................................................... 3- 11
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