Canon imagePRESS C1 P, Service Manual, Page: 439 / 1265

Chapter 7
7-90
F-7-142
Points to Note When Attaching the Drum Fixtures
When attaching the drum fixtures, be sure not to rotate the drum clockwise.
If the drum is rotated clockwise, which is the reverse of its normal direction,
the scoop-up sheet may become soiled and toner may scatter.
3) Remove the drum unit [1].
- 2 connectors [2]
- 3 screws [3]
F-7-143
7.14.12 Photosensitive Drum
7.14.12.1 Points to Note When Handling the
Photosensitive Drum
0014-2027
imagePRESS C1 P / imagePRESS C1 / imagePRESS C1+ (Printer) / image-
PRESS C1+
The high-sensitivity amorphous silicon drum is employed for this machine.
If there are some mistakes when handling the process unit and the photosen-
sitive drum, the sensitivity of the photosensitive drum deteriorates. When
handling the process unit or photosensitive drum, be careful to keep the fol-
lowing points.
1) When detaching the process unit, keep the photosensitive drum from the
light. The method of light-blocking is either covering the photosensitive
drum protective sheet, or wrapping six sheets or more of A3 paper around
it.
2) Do not leave the process unit and photosensitive drum exposed to the sun,
for example near the window.
3) Do not store them in any place where it will be subjected to high temper-
ature, high humidity, low temperature, low humidity, or where the tem-
perature or humidity radically changes.
4) Do not store them in any place where there is much dust or full of ammo-
nia gas/organic solvent.
In addition, keep these points also when handling all of the photosensitive
drums.
7.14.12.2 Preparation for Removing the Photosensitive
Drum
0013-9747
imagePRESS C1 P / imagePRESS C1 / imagePRESS C1+ (Printer) / image-
PRESS C1+
1) Open the front cover.
2) Remove the process unit cover.
3) Hold up the hopper unit.
4) Remove the primary corona assembly.
(page 7-86)
Reference [Remov-
ing the Primary Corona Assembly]
5) Remove the pre-transfer corona assembly.
(page 7-88)
Reference [Re-
moving the pre-transfer corona assembly]
6) Detach the drum unit. (page 7-89) Reference [Removing the Drum Unit]
7.14.12.3 Removing the Photosensitive Drum
0013-9748
imagePRESS C1 P / imagePRESS C1 / imagePRESS C1+ (Printer) / image-
PRESS C1+
1) Remove the photosensitive rear fixing plate [1].
- 3 screws [2]
F-7-144
2) After pushing the drum holder pin [1], rotate the drum holder [2] in the
direction of the arrow.
F-7-145
3) Move the photosensitive drum [1] in the direction of the arrow [A], detach
it in the direction of the arrow [B].
F-7-146
Points to Note when Attaching the Photosensitive Drum
When attaching the photosensitive drum, be sure to do it while having it cov-
ered with the shielding sheet. Remove the shielding sheet after you finished
attaching it.
7.14.12.4 After Replacing the Photosensitive Drum
0014-3691
imagePRESS C1 P / imagePRESS C1 / imagePRESS C1+ (Printer) / image-
PRESS C1+
Follow the procedure below to replace the photosensitive drum.
1) Turn on the main power switch.
2) Select the following items in the Service Mode and then hit OK.
3) Run the service mode for drum replacement mode enforcement execution
(COPIER > FUNCTION > DCP > DRM-RSET).
4) Run automatic gradation correction (full correction).
[1] [2]
[1]
[3]
[3]
[2]
[1]
[2]
[1]
[2]
[A]
[B]
[1]