Canon Puncher Unit-P1 Service Manual page 46

Chapter 3
F-3-26
2) Remove the two tie wraps with lock [1] while
holding its claw between your fingers. (The tie wraps
must be removed without being cut.)
3) Disconnect the three connectors [2].
4) Free the harness [4] from the three harness stops
[3].
[3]
[3]
[1]
[4]
[3]
F-3-27
5) Turn the gear [1] in the direction of the arrow, and
move the punch unit section [2] to the front side.
3-8
[2]
[2]
[1]
F-3-28
6) Remove the three screws [1] and sensor mount
(upper) [2].
7) Disconnect the connector [3] on the photosensor
PCB and the connector [4] on the LED PCB and
remove the harness from the edge saddle [5].
F-3-29
8) Free the harness [2] from the four harness stops [1].