Canon DADF-N1 Service Manual page 6

Contents
2.3.7 Original Size Final Identification...................................................................... 2-24
2.4 Document Pickup/Separation................................................................................... 2-27
2.4.1 Basic Operation................................................................................................. 2-27
2.4.2 Pickup Roller and the Stopper........................................................................... 2-30
2.4.3 Timing of Pickup .............................................................................................. 2-32
2.4.4 Controlling the Pickup Motor (M2) .................................................................. 2-32
2.5 Document Reversing................................................................................................ 2-34
2.5.1 Basic Operation................................................................................................. 2-34
2.5.2 Sequence of Operation ...................................................................................... 2-36
2.6 Document Feeding/Delivery .................................................................................... 2-37
2.6.1 Basic Operation................................................................................................. 2-37
2.6.2 Sequence of Operation ...................................................................................... 2-38
2.6.3 Controlling the Feed Motor (M1) ..................................................................... 2-38
2.7 Detecting Jams ......................................................................................................... 2-40
2.7.1 Jams................................................................................................................... 2-40
2.8 Power Supply ........................................................................................................... 2-42
2.8.1 Power Supply .................................................................................................... 2-42
2.9 Stamp Operation ...................................................................................................... 2-43
2.9.1 Outline............................................................................................................... 2-43
Chapter 3 Parts Replacement Procedure
3.1 Removing from the Host Machine............................................................................. 3-1
3.1.1 Feeder ..................................................................................................................3-1
3.1.1.1 Disconnecting from the Host Machine......................................................... 3-1
3.2 External Covers.......................................................................................................... 3-2
3.2.1 Front Cover .........................................................................................................3-2
3.2.1.1 Removing the Front Cover ........................................................................... 3-2
3.2.2 Rear Cover ..........................................................................................................3-2
3.2.2.1 Removing the Rear Cover ............................................................................ 3-2
3.2.3 Feeder Cover .......................................................................................................3-3
3.2.3.1 Removing the Feeder Cover......................................................................... 3-3
3.3 Drive System.............................................................................................................. 3-4
3.3.1 Pickup Motor .......................................................................................................3-4
3.3.1.1 Removing the Rear Cover ............................................................................ 3-4
3.3.1.2 Removing the Pickup Motor ........................................................................ 3-4
3.3.1.3 Mounting the Pickup Motor ......................................................................... 3-5
3.3.2 Feed Motor ..........................................................................................................3-5
3.3.2.1 Removing the Rear Cover ............................................................................ 3-5