Canon Puncher Unit-P1 Service Manual page 31

4) When punching ends, drive of the punch feed motor (M63) is started, the horizontal registration motor (M62) is
operated in the reverse direction, and the punch slide unit is returned to its home position where it comes to a stop.
5) Even if paper to be punched continues to arrive, the punch slide unit returns to its home position for each arriving
sheet, and steps 1 to 4 are repeated.
Trailing edge detection
sensor (LED5, PTR5)
Horizontal registration sensor
(LED1 to 4, PTR1 to 4)
Punch home position
sensor (PI63)
Horizontal registration home
position sensor (PI61)
Horizontal registration
motor (M62)
Punch motor (M61)
First feed motor (M63)
Punch
F-2-11
: Motor CW : Motor CCW
F-2-12
Chapter 2
2-9