Canon DADF-N1 Service Manual page 10

Contents
3.5.2 Inner Sensor of Feed Unit .................................................................................3-74
3.5.2.1 Removing the Rear Cover .......................................................................... 3-74
3.5.2.2 Removing the Front Cover ......................................................................... 3-74
3.5.2.3 Removing the Feeder Cover....................................................................... 3-75
3.5.2.4 Removing the Pickup Motor ...................................................................... 3-75
3.5.2.5 Removing the Pickup Clutch...................................................................... 3-75
3.5.2.6 Removing the Reinforcing Plate ................................................................ 3-76
3.5.2.7 Removing the Feed Motor.......................................................................... 3-76
3.5.2.8 Detaching the Timing Belt and the Pulley ................................................. 3-77
3.5.2.9 Removing the Feeder Unit ......................................................................... 3-79
3.5.2.10 Removing the Upper Delivery Reversing Roller ..................................... 3-80
3.5.2.11 Removing the Platen Guide L .................................................................. 3-80
3.5.2.12 Removing the Read Roller 1 .................................................................... 3-81
3.5.2.13 Removing the Read Roller 2 .................................................................... 3-82
3.5.2.14 Removing the Platen Roller ..................................................................... 3-83
3.5.2.15 Removing the Feeder Unit Inside Sensor................................................. 3-84
3.5.3 Document Width Volume .................................................................................3-85
3.5.3.1 Removing the Front Cover ......................................................................... 3-85
3.5.3.2 Removing the Original Width Volume ...................................................... 3-85
3.5.3.3 Mounting the Original Width Volume ....................................................... 3-86
3.5.4 Cover Open/Closed Sensor ...............................................................................3-86
3.5.4.1 Removing the Rear Cover .......................................................................... 3-86
3.5.4.2 Removing the Cover Open/Closed Sensor................................................. 3-87
3.5.5 Document Set Sensor ........................................................................................3-87
3.5.5.1 Removing the Rear Cover .......................................................................... 3-87
3.5.5.2 Removing the Original Placement Sensor.................................................. 3-88
3.5.6 Pressurization Solenoid .....................................................................................3-88
3.5.6.1 Removing the Rear Cover .......................................................................... 3-88
3.5.6.2 Removing the ADF Controller PCB .......................................................... 3-89
3.5.6.3 Removing the Locking Solenoid................................................................ 3-89
Chapter 4 Maintenance
4.1 User Maintenance ...................................................................................................... 4-1
4.1.1 Cleaning .............................................................................................................. 4-1
4.1.2 Replacement ........................................................................................................ 4-2
4.2 Maintenance and Inspection ...................................................................................... 4-4
4.2.1 Periodically Replaced Parts .................................................................................4-4
4.2.1.1 Periodically Replaced Parts.......................................................................... 4-4