Contents
9.4.9 Network PCB.........................................................................................................................................................9- 11
9.4.9.1 Removing the Network PCB .................................................................................................................................................. 9- 11
9.4.10 Relay PCB...........................................................................................................................................................9- 11
9.4.10.1 Removing the Relay PCB ....................................................................................................................................................9- 11
9.4.11 Interlock Switch....................................................................................................................................................9- 11
9.4.11.1 Removing the Interlock Switch............................................................................................................................................. 9- 11
9.4.12 Fans.....................................................................................................................................................................9- 11
9.4.12.1 Removing the Heat Discharge Fan......................................................................................................................................9- 11
9.4.13 Other....................................................................................................................................................................9- 12
9.4.13.1 Removing the Speaker.........................................................................................................................................................9- 12
Chapter 10 Original Feeding System
10.1 Basic Construcion...................................................................................................................................10- 1
10.1.1 Outline .................................................................................................................................................................10- 1
10.1.2 Drive Mechanism.................................................................................................................................................10- 1
10.2 Basic Operation ......................................................................................................................................10- 3
10.2.1 Outline of Operation Mode...................................................................................................................................10- 3
10.2.2 Document Size Detection....................................................................................................................................10- 5
10.2.3 Paper Pickup Operation.......................................................................................................................................10- 5
10.2.4 Reversal Operation..............................................................................................................................................10- 5
10.2.5 Delivery Operation...............................................................................................................................................10- 6
10.3 Detection Jams.......................................................................................................................................10- 8
10.3.1 Outline .................................................................................................................................................................10- 8
10.4 Parts Replacement Procedure................................................................................................................10- 9
10.4.1 ADF......................................................................................................................................................................10- 9
10.4.1.1 Removing the ADF............................................................................................................................................................... 10- 9
10.4.2 External Covers...................................................................................................................................................10- 9
10.4.2.1 Removing the Front Cover...................................................................................................................................................10- 9
10.4.2.2 Removing the Rear Cover.................................................................................................................................................... 10- 9
10.4.2.3 Detaching the Open/Close cover......................................................................................................................................... 10- 9
10.4.2.4 Removing the Pickup Tray................................................................................................................................................. 10- 10
10.4.3 ADF Drive Unit...................................................................................................................................................10- 10
10.4.3.1 Removing the Drive Unit ....................................................................................................................................................10- 10
10.4.4 Feed Frame Unit................................................................................................................................................10- 10
10.4.4.1 Removing the Feed Frame Unit......................................................................................................................................... 10- 10
10.4.5 ADF Motor Unit..................................................................................................................................................10- 11
10.4.5.1 Removing the ADF Motor...................................................................................................................................................10- 11
10.4.6 Pick-up/Feed Roller Unit....................................................................................................................................10- 11
10.4.6.1 Removing the Pickup/Feed Roller Unit .............................................................................................................................. 10- 11
10.4.7 Pickup Roller......................................................................................................................................................10- 12
10.4.7.1 Removing the Pickup Roller............................................................................................................................................... 10- 12
10.4.8 Original Separation Pad.....................................................................................................................................10- 12
10.4.8.1 Removing the Separation Pad ...........................................................................................................................................10- 12
10.4.9 Feed Roller........................................................................................................................................................10- 13
10.4.9.1 Removing the Feed Roller .................................................................................................................................................10- 13
10.4.10 Original Sensor................................................................................................................................................10- 13
10.4.10.1 Removing the Document Set Sensor...............................................................................................................................10- 13
10.4.11 Separation Rear Sensor ..................................................................................................................................10- 13
10.4.11.1 Removing the Separation Rear Sensor............................................................................................................................10- 13
10.4.12 Registration Sensor .........................................................................................................................................10- 13
10.4.12.1 Removing the Registration Sensor................................................................................................................................... 10- 13
10.4.13 Document Edge Sensor...................................................................................................................................10- 13
10.4.13.1 Removing the document Edge Sensor.............................................................................................................................10- 13
10.4.14 Pick-up Solenoid..............................................................................................................................................10- 14
10.4.14.1 Removing the Pickup Solenoid ........................................................................................................................................ 10- 14
10.4.15 Registaration Solenoid.....................................................................................................................................10- 14
10.4.15.1 Removing the Registration Solenoid................................................................................................................................ 10- 14