Canon Staple Finisher-AA1 Service Manual page 56

2. The stack delivery/paddle motor (M103) drives, and the paddle clutch (CL103) turns on. The paddle is rotated (once for small
size, twice for large size) and pulls in the paper into the processing tray unit. Further, return roller lift motor (M111) is driven,
and stack delivery/paddle motor (M103) is used for rotation. The return roller is lowered, and the paper is pressed against
the processing tray stopper to align the paper in the feed direction.
NOTE:
The buffered paper stack is pulled into the processing tray unit by the stack delivery roller.
M103
Paddle
CL103
Return Roller
48
2. Technical Explanation
M111