Canon External 2/3 Hole Puncher-B1, Service Manual

Page: 34 / 72

Chapter 3
3-4
F-3-17
9) Remove the three screws [1] and sensor mount (upper) [2].
10) 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-3-18
11) Free the harness [2] from the four harness stops [1].
F-3-19
12) Disconnect the connector [1] of the horizontal registration motor and the
connector [2] of the horizontal registration home position sensor, and re-
move the punch unit harness.
F-3-20
3.3.1.3 Installing the Punch Unit Harness
0023-7154
1) Remove the rear cover.
2) Remove the right guide unit.
3) Remove the upper cover.
Offset punch unit harnesses can cause malfunction. The punch unit har-
nesses must be firmly installed at the positions described below.
4) Fasten the punch unit harnesses so that the two tie wraps [1] of the punch
unit harnesses are on the outside of the two respective clamps [2].
F-3-21
F-3-22
[1]
[1]
PI62
PI63
M61
PI61
M62
LED PCB
Potosensor
PCB
Punch Controller PCB