Canon Finisher-T1 Service Manual page 49

After the processing tray paper sensor detects the paper, the aligning motor (M103/M104) starts and aligns the paper.
<Last Sheet>
When alignment of the last sheet completes, the finisher controller PCB moves the aligning plate to alignment
position with the aligning motor (M103/M104) (with the paper held with the aligning plate). Then the finisher
controller PCB staples at the specified staple position.
After stapling, the finisher controller PCB starts the swing motor (M106) and lowers the swing guide. Then the stack
is ejected by the stack delivery roller, return roller, and rear endassist guide.
Stack ejection roller
Swing guide
1st delivery roller
Processing tray
F-2-30
Stack ejection roller
Swing guide
F-2-31
Return roller
Stapler
Return roller
Rear end assist guide
Stapler
Chapter 2
2-23