Canon imageRunner iR2270, Service Manual, Page: 8 / 233

Contents
3.3.3.4 Removing the Feed Roller.......................................................................... 3-33
3.4 Electrical System ..................................................................................................... 3-35
3.4.1 Stack Tray Paper Surface Sensor ......................................................................3-35
3.4.1.1 Removing the PCB Cover .......................................................................... 3-35
3.4.1.2 Removing the Top Harness Cover ............................................................. 3-35
3.4.1.3 Removing the Upper Cover........................................................................ 3-36
3.4.1.4 Removing the Stapler Cover ...................................................................... 3-36
3.4.1.5 Removing the Stapler ................................................................................. 3-37
3.4.1.6 Removing the Drive Unit ........................................................................... 3-37
3.4.1.7 Removing the Process Tray Unit................................................................ 3-38
3.4.1.8 Removing the Stack Tray Paper Surface Sensor........................................ 3-38
3.4.2 Stack Tray Lower Limit Sensor ........................................................................3-39
3.4.2.1 Removing the Stack Tray Lower Limit Sensor.......................................... 3-39
3.4.3 Process Tray Paper Sensor ................................................................................3-39
3.4.3.1 Removing the PCB Cover .......................................................................... 3-39
3.4.3.2 Removing the Top Harness Cover ............................................................. 3-40
3.4.3.3 Removing the Upper Cover........................................................................ 3-40
3.4.3.4 Removing the Stapler Cover ...................................................................... 3-41
3.4.3.5 Removing the Drive Unit ........................................................................... 3-41
3.4.3.6 Removing the Process Tray Unit................................................................ 3-42
3.4.3.7 Removing the Process Tray Paper Sensor.................................................. 3-43
3.4.4 Finisher Controller PCB ....................................................................................3-43
3.4.4.1 Finisher Controller PCB............................................................................. 3-43
3.4.5 Front Cover Safety Switch ................................................................................3-45
3.4.5.1 Removing the PCB Cover .......................................................................... 3-45
3.4.5.2 Removing the Front Door Safety Switch ................................................... 3-45
3.4.6 Inlet Sensor ........................................................................................................3-45
3.4.6.1 Removing the PCB Cover .......................................................................... 3-45
3.4.6.2 Removing the Top Harness Cover ............................................................. 3-46
3.4.6.3 Removing the Upper Cover........................................................................ 3-46
3.4.6.4 Removing the Inlet Sensor ......................................................................... 3-47
3.4.7 Stack Slide HP Sensor .......................................................................................3-48
3.4.7.1 Removing the PCB Cover .......................................................................... 3-48
3.4.7.2 Removing the Top Harness Cover ............................................................. 3-48
3.4.7.3 Removing the Upper Cover........................................................................ 3-48
3.4.7.4 Removing the Stapler Cover ...................................................................... 3-49
3.4.7.5 Removing the Drive Unit ........................................................................... 3-49
3.4.7.6 Removing the Process Tray Unit................................................................ 3-50
3.4.7.7 Stack Slide HP Sensor................................................................................ 3-51
3.4.8 Offset HP Sensor ...............................................................................................3-51