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