Cleaning The Photosensitive Drum; Drum Cleaner Unit; Construction; Removing The Primary Fan Duct - Canon iR6570 series Service Manual

[1]
Take care not to damage the photosensitive drum when removing it. The
bearing at the rear and the gear at the front of the drum need not be
removed.
If the temperature of the fixing assembly is 50 deg C or higher when
replacing the drum unit, be sure to execute the following in service
mode; otherwise, potential control will not be executed:
COPIER> FUNCTION> DPC> DPC.

7.10.5.9 Cleaning the Photosensitive Drum

Do not rotate the magnet roll during work. Otherwise, waste toner may
fall through the cleaner assembly.
1) Slide out the process unit.
2) Take out the photosensitive drum.
3) Moisten lint-free paper [1] with 5 to 10 cc of alcohol [2]; then, pour
0.2 to 0.3 g of drum cleaning powder (CK-0429) [3] on the lint-free
paper.
4) While butting the lint-free paper relatively strongly against the
photosensitive drum, wipe the surface of the drum from the front to
the rear and from the rear to the front.
[3]
CK-0429
F-7-86
0009-5677
[2]
[1]
F-7-87
- Keep the widths of cleaning to 5 to 10 cm in the peripheral direction of
the drum.
- Move the lint-free paper back and forth 15 to 20 times over a single
area.
Å@Forcing the lint-free paper will not affect the life of the drum.
5) When the alcohol has evaporated, dry wipe the surface with lint-free
paper. If the area is uneven, go back to step 4), and increase the back-
and-forth movements.
6) Rotate the drum for the width (50 to 100 mm), and repeat steps 3)
through 5) until the entire area of the surface has been cleaned.
50 to 100 mm

7.10.6 Drum Cleaner Unit

7.10.6.1 Construction

7.10.6.2 Removing the Primary Fan Duct

1) Open the front cover.
2) Open the toner supply cover.
3) Remove the toner supply cover [2] using the two screws [1].
Chapter 7
F-7-88
0009-5638
Cleaning blade
Separation claw
F-7-89
0009-5640
7-35