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If the punch unit harnesses shift away from
their installation positions, this may cause
defective operation. The punch unit
harnesses must be firmly installed at the
positions described below.

1) Fasten the punch unit harnesses at the posi-

tions where the two tie wraps [1] of the punch
unit harnesses are outside the two respec-
tive harness fasteners [2].

[2]

[1]

[2]

[1]

[1]

PI2P

PI3P

M1P

Photosensor PCB

LED PCB

PI1P

M2P

Scrap full detector PCB

MS1P

MS2P

[1]

Punch 
driver PCB

1) Remove the punch unit assembly (see III-

B-3).

2) Remove the screw [1] and the LED PCB

[2].

1) Remove the upper cover (see III-A-2).
2) Remove the two screws [1], and remove the

sensor plate [2].

3) Disconnect the connector [2], and remove

the photosensor PCB [4].

[2]

[1]

[1]

[2]

[3]

[4]

1) Remove the right guide assembly (see III-

A-1).

2) Remove the screw [1], disconnect the con-

nector [2], and remove the scrap full detec-
tor PCB unit [3].

1) Remove the puncher unit from the finisher.
2) Remove the four screws [1], disconnect four

connectors [2], and remove the punch driver
PCB [3].

[3]

[2]

[1]

[3]

[1]

[1]

[2]

[1]

[2]

1) Remove 1 screw [1], and take off the upper

cover [2].

1) Remove 3 screws [1], and push the hook

[2] to move the front cover [3] forward.

2) Disconnect 1 connector [4], and take off the

front cover.

[2]

[1]

[1]

[2]

[3]

[4]