Canon Finisher-AB1 Service Manual page 208

Contents
3.3.4 Tray Paper Surface Detection................................................................................. 3-8
3.4 Feeding Unit ....................................................................................................... 3-9
3.4.1 Overview..................................................................................................................... 3-9
3.4.2 Basic Sequence of Operations ............................................................................. 3-12
3.4.3 Horizontal Registration Detection ......................................................................... 3-13
3.4.4 Horizontal Registration Correction/Alignment Operation .................................. 3-15
3.4.5 Buffer Operation ...................................................................................................... 3-18
3.4.6 Switching Over the Paper Path............................................................................. 3-20
3.5 Intermediate Process Tray Assembly........................................................... 3-21
3.5.1 Overview................................................................................................................... 3-21
3.5.2 Basic Sequence of Operations ............................................................................. 3-24
3.5.3 Stacking Operation ................................................................................................. 3-25
3.5.4 Alignment.................................................................................................................. 3-29
3.5.5 Stapling Operation .................................................................................................. 3-31
3.5.6 Delivery Operation .................................................................................................. 3-33
3.6 Saddle Stitcher Unit......................................................................................... 3-34
3.6.1 Overview................................................................................................................... 3-34
3.6.2 Basic Sequence of Operations ............................................................................. 3-37
3.6.3 Transport .................................................................................................................. 3-38
3.6.4 Alignment.................................................................................................................. 3-40
3.6.5 Stitching .................................................................................................................... 3-43
3.6.6 Folding/Delivery....................................................................................................... 3-44
3.7 Detecting Jams................................................................................................. 3-47
3.7.1 Jam Detection in the Finisher Assembly ............................................................. 3-47
3.7.2 Jam Detection in the Stitcher Assembly .............................................................. 3-49
3.8 Power Supply ................................................................................................... 3-51
3.8.1 Overview................................................................................................................... 3-51
3.8.2 Protective Mechanism ............................................................................................ 3-52
Chapter 4 Parts Replacement Procedure
4.1 Removing from the Host Machine................................................................... 4-1
4.1.1 Finisher Assembly ..................................................................................................... 4-1
4.2 External Covers.................................................................................................. 4-2
4.2.1 Rear Lower Cover ..................................................................................................... 4-2
4.2.2 Rear Upper Cover ..................................................................................................... 4-2
4.2.3 Upper Cover Unit ...................................................................................................... 4-3
4.2.4 Delivery Tray .............................................................................................................. 4-4
4.2.5 Stack Wall (Upper) .................................................................................................... 4-5
4.2.6 Stack Wall (Lower) .................................................................................................... 4-5
4.2.7 Saddle Inside Cover ................................................................................................. 4-6
4.2.8 Rear Middle Cover .................................................................................................... 4-7