Canon iR4570 Series Service Manual page 504

Contents
10.5.4.2 Removing the Control Panel Base Cover .......................................................................................10-27
10.5.4.3 Removing the Control Panel Inside Frame.....................................................................................10-28
10.5.4.4 Removing the Control Panel LCD..................................................................................................10-29
10.5.5 Removing the DC Controller PCB ........................................................................................................10-29
10.5.5.1 Removing the Rear Cover............................................................................................................... 10-29
10.5.5.2 Removing the DC Controller PCB .................................................................................................10-30
10.5.6 Control Panel Inverter PCB ...................................................................................................................10-31
10.5.6.1 Removing the Control Panel...........................................................................................................10-31
10.5.6.2 Removing the Control Panel Base Cover .......................................................................................10-33
10.5.6.3 Removing the Control Panel Inverter PCB.....................................................................................10-34
10.5.7 Control Panel Key Switch PCB .............................................................................................................10-34
10.5.7.1 Removing the Control Panel...........................................................................................................10-34
10.5.7.2 Removing the Control Panel Base Cover .......................................................................................10-36
10.5.7.3 Removing the Control Panel Frame................................................................................................10-37
10.5.7.4 Removing the Control Panel Key Switch PCB ..............................................................................10-37
10.5.8 Control Panel CPU PCB ........................................................................................................................10-39
10.5.8.1 Removing the Control Panel...........................................................................................................10-39
10.5.8.2 Removing the Control Panel Base Cover .......................................................................................10-40
10.5.8.3 Removing the Controller Panel CPU PCB .....................................................................................10-41
10.5.9 All Night Power Supply PCB ................................................................................................................10-41
10.5.9.1 Removing the Rear Cover............................................................................................................... 10-41
10.5.9.2 Removing the All-Night Power Supply PCB .................................................................................10-42
10.5.10 Controller Power Supply PCB.............................................................................................................10-43
10.5.10.1 Removing the Rear Cover.............................................................................................................10-43
10.5.10.2 Removing the Left Cover (lower).................................................................................................10-44
10.5.10.3 Removing the Left Cover (Rear) ..................................................................................................10-44
10.5.10.4 Removing the Accessories Power Supply PCB............................................................................10-44
10.5.10.5 Removing the Controller Power Supply PCB ..............................................................................10-45
10.5.11 Option Power Supply PCB ..................................................................................................................10-46
10.5.11.1 Removing the Rear Cover.............................................................................................................10-46
10.5.11.2 Removing the Left Cover (lower).................................................................................................10-47
10.5.11.3 Removing the Left Cover (Rear) ..................................................................................................10-48
10.5.11.4 Removing the Accessories Power Supply PCB............................................................................10-48
10.5.12 High-Voltage PCB...............................................................................................................................10-49
10.5.12.1 Removing the Front Cover Unit ...................................................................................................10-49
10.5.12.2 Removing the Waste Toner Case..................................................................................................10-50
10.5.12.3 Removing the Toner Cartridge .....................................................................................................10-51
10.5.12.4 Removing the Drum Unit .............................................................................................................10-52
10.5.12.5 Removing the Developing Assembly ...........................................................................................10-54
10.5.12.6 Removing the Upper Tray ............................................................................................................10-56
10.5.12.7 Removing the Toner Cartridge Cover ..........................................................................................10-57
10.5.12.8 Removing the Pre-Exposure Lamp...............................................................................................10-57
10.5.12.9 Removing the Left Cover .............................................................................................................10-58
10.5.12.10 Removing the Laser Unit............................................................................................................10-59
10.5.12.11 Removing the Hopper Assembly................................................................................................10-61
10.5.12.12 Removing the Right Cover (rear) ...............................................................................................10-62
10.5.12.13 Removing the Right Door...........................................................................................................10-63
10.5.12.14 Removing the Right Door...........................................................................................................10-65
10.5.12.15 Removing the Right Door...........................................................................................................10-67