Canon Saddle Finisher-AF2 Service Manual page 57

Contents
3.1 Basic Construction .........................................................................................................................................................3-1
3.1.1 Overview...................................................................................................................................................................................... 3-1
3.2 Electrical Control Unit ...................................................................................................................................................3-1
3.2.1 Overview...................................................................................................................................................................................... 3-1
3.2.2 Finisher Controller PCB .............................................................................................................................................................. 3-2
3.2.3 Saddle Stitcher Controller PCB ................................................................................................................................................... 3-2
3.3 Stacking Unit..................................................................................................................................................................3-3
3.3.1 Overview...................................................................................................................................................................................... 3-3
3.3.2 Tray Ascent/Descent Control....................................................................................................................................................... 3-3
3.3.3 Auxiliary Tray Lift Control ......................................................................................................................................................... 3-4
3.3.4 Tray Paper Surface Detection ...................................................................................................................................................... 3-5
3.4 Feeding Unit...................................................................................................................................................................3-6
3.4.1 Overview...................................................................................................................................................................................... 3-6
3.4.2 Basic Sequence of Operations ..................................................................................................................................................... 3-8
3.4.3 Horizontal Registration Detection ............................................................................................................................................... 3-8
3.4.4 Side Registration Correction Operation Shift Operation ........................................................................................................... 3-10
3.4.5 Buffer Operation ........................................................................................................................................................................ 3-13
3.4.6 Switching Over the Paper Path .................................................................................................................................................. 3-15
3.4.7 Interval Speed Control ............................................................................................................................................................... 3-16
3.5 Intermediate Process Tray Assembly...........................................................................................................................3-18
3.5.1 Overview.................................................................................................................................................................................... 3-18
3.5.2 Basic Sequence of Operations ................................................................................................................................................... 3-19
3.5.3 Stacking Operation..................................................................................................................................................................... 3-20
3.5.4 Shift Operation........................................................................................................................................................................... 3-24
3.5.5 Stapling Operation ..................................................................................................................................................................... 3-25
3.5.6 Delivery Operation..................................................................................................................................................................... 3-27
3.6 Saddle Stitcher Unit .....................................................................................................................................................3-29
3.6.1 Overview.................................................................................................................................................................................... 3-29
3.6.2 Basic Sequence of Operations ................................................................................................................................................... 3-30
3.6.3 Paper Feed Operation................................................................................................................................................................. 3-31
3.6.4 Alignment Operation ................................................................................................................................................................. 3-35
3.6.5 Staple Operation......................................................................................................................................................................... 3-37
3.6.6 Paper Folding/Delivery Operations ........................................................................................................................................... 3-38
3.7 Detecting Jams .............................................................................................................................................................3-43
3.7.1 Jam inspection in Finisher ......................................................................................................................................................... 3-43
3.7.2 Stitcher area jam detection......................................................................................................................................................... 3-45
Contents