Canon iR7086, Service Manual

Page: 280 / 735

Chapter 7
7-34
1) Open the front cover.
2) Remove the primary charging assembly cover [1].
- 1 screw [2]
F-7-57
3) Remove the process unit cover.
4) If a double-feeding detection PCB (transmitting) [3] is found, disconnect
the 2 connectors [1] and remove the screw [2]; then, open the PCB in the
direction of the arrow.
F-7-58
5) Disconnect the connector [1]; then, while turning the stop lever [2] in the
direction of the arrow, slide out the pre-transfer charging assembly [3].
F-7-59
7.10.5 Photosensitive Drum
7.10.5.1 Points to Note About Handling the
Photosensitive Drum
0010-8824
iR7105 / iR7095 / iR7086
The machine's photosensitive drum is a high-sensitivity amorphous silicon
drum, whose sensitivity tends to deteriorate if not handled properly. Be sure
to observe the following whenever handling the process unit or the photosen-
sitive drum:
1. If you have removed the process unit, be sure to protect the photosensitive
drum against light by covering it with its protective sheet or wrapping it
with 6 or more sheets of A3 paper.
2. Do not place the process unit or the photosensitive drum near a window or
an area subject to direct rays of the sun.
3. Do not store the process unit or the photosensitive drum in a place subject
to high/low temperature/humidity to a rapid change in these environmen-
tal conditions.
4. Do not store the process unit or the photosensitive drum in a place subject
to dust, ammonium gas, or organic solvent gas.
The foregoing rules equally apply to all types of photosensitive drums.
7.10.5.2 Removing the Photosensitive Drum
0010-8826
iR7105 / iR7095 / iR7086
1) Remove the developing fan.
2) Slide out the process unit.
3) Remove the 3 screws [1], and disconnect the 2 connectors [2]; then, detach
the sub plate assembly [3].
F-7-60
4) Remove the 2 screws [1], and detach the positioner holder [2].
F-7-61
5) Remove the 3 screws [1], and detach the drum fixing plate [2].
F-7-62
6) Remove the screw [1], and detach the bearing stopper [2]; then, shift the
photosensitive drum [3] to the front (in the direction of the arrow) to lift.
[2]
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[2] [3]
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[2]
[3]
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[2]
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