ContentsContents4.1 Basic Constraction .........................................................................................................................................................4-14.1.1 Outline.......................................................................................................................................................................................... 4-14.1.2 Drive Mechanism......................................................................................................................................................................... 4-14.2 Basic Operation..............................................................................................................................................................4-24.2.1 Outline of Operation Mode .......................................................................................................................................................... 4-24.2.2 Document Size Detection ............................................................................................................................................................ 4-34.2.3 Paper Pickup Operation ............................................................................................................................................................... 4-44.2.4 Reversal Operation....................................................................................................................................................................... 4-44.2.5 Delivery Operation....................................................................................................................................................................... 4-54.3 Detection Jams ...............................................................................................................................................................4-64.3.1 Outline.......................................................................................................................................................................................... 4-64.4 ADF................................................................................................................................................................................4-74.4.1 ADF.............................................................................................................................................................................................. 4-74.4.1.1 Removing the ADF .........................................................................................................................................................................................4-74.4.2 External Covers............................................................................................................................................................................ 4-74.4.2.1 Removing the Front Cover..............................................................................................................................................................................4-74.4.2.2 Removing the Rear Cover ...............................................................................................................................................................................4-74.4.2.3 Detaching the Open/Close cover.....................................................................................................................................................................4-84.4.2.4 Removing the Pickup Tray..............................................................................................................................................................................4-84.4.3 Feed Frame Unit .......................................................................................................................................................................... 4-94.4.3.1 Removing the Feed Frame Unit ......................................................................................................................................................................4-94.4.4 Drive Unit .................................................................................................................................................................................... 4-94.4.4.1 Removing the Drive Unit ................................................................................................................................................................................4-94.4.5 Pick-up/Feed Roller Unit ............................................................................................................................................................. 4-94.4.5.1 Removing the Pickup/Feed Roller Unit ..........................................................................................................................................................4-94.4.6 Pick-up Roller .............................................................................................................................................................................. 4-94.4.6.1 Removing the Pickup Roller ...........................................................................................................................................................................4-94.4.7 Feed Roller................................................................................................................................................................................. 4-104.4.7.1 Removing the Feed Roller ............................................................................................................................................................................4-104.4.8 ADF Motor................................................................................................................................................................................. 4-104.4.8.1 Removing the ADF Motor ............................................................................................................................................................................4-104.4.9 Document Set Sensor................................................................................................................................................................. 4-104.4.9.1 Removing the Document Set Sensor.............................................................................................................................................................4-104.4.10 Document Edge Sensor............................................................................................................................................................ 4-114.4.10.1 Removing the Original Placement Sensor ..................................................................................................................................................4-114.4.11 Registration Sensor .................................................................................................................................................................. 4-114.4.11.1 Removing the Registration Sensor..............................................................................................................................................................4-114.4.12 Separation Sensor..................................................................................................................................................................... 4-114.4.12.1 Removing the Separated Paper Sensor .......................................................................................................................................................4-114.4.13 Pick-up Solenoid ...................................................................................................................................................................... 4-114.4.13.1 Removing the Pickup Solenoid...................................................................................................................................................................4-114.4.14 Registration Solenoid............................................................................................................................................................... 4-124.4.14.1 Removing the Registration Solenoid ..........................................................................................................................................................4-124.4.15 Release Solenoid ...................................................................................................................................................................... 4-124.4.15.1 Removing the Release Solenoid..................................................................................................................................................................4-124.4.16 Separation Pad ......................................................................................................................................................................... 4-124.4.16.1 Removing the Separation Pad .....................................................................................................................................................................4-12Download Free Service Manual And Resetter Printer at http://printer1.blogspot.com