Canon IMAGERUNNER 7086, Service Manual

Page: 371 / 615

Chapter 13
13-10
4) While forcing the lint-free paper against the
photosensitive drum, wipe it as if to rub it from
the front to the rear and then from the rear to the
front.
F-13-8
- Rub it over a width of 5 to 10 cm in drum
peripheral direction.
- The drum life is not likely to be affected if the
back-and-forth strokes of the lint-free paper
over a single area is limited to 15 to 20 times.
5) When alcohol has evaporated, dry wipe the
surface with lint-free paper. If the surface
cleaned with the lint-free paper is uneven, go
back to step 4), and repeat the work by
increasing the number of back-and-forth
stokes.
6) Rotate the drum an equivalent of the width
over which its surface has been cleaned, and
repeat steps 3) through 5) until the entire
surface of the drum has been cleaned.
7) Remove the cleaning blade assembly.
8) Insert a ruler [3] between the magnet roller [1]
and the scraper [2]; then, move it back and forth
from the rear to the front and then from the
front to the rear to break any cakes of waste
toner.
9) Rotate the magnet roller [1] to see that the
coating of waste toner is even.
If the following is noted, repeat step 8):
- the surface of the magnet roller is a clearly
recognizable lined coating of toner.
- there are dents in parts of the surface.
- there is a cake of toner.
F-13-9
10) Remove the cleaning blade from the cleaning
blade assembly.
11) Turn over or replace the cleaning blade [7];
then, match and butt it against the rear of the
blade retaining plate [8].
F-13-10
When butting the blade, force it down with your
fingers, making sure there is no gap.
12) Tighten the following screws temporarily in
the order indicated:
- temporarily tighten screws from 1 through 5
F-13-11
5 10cm
[1]
[2]
[3]
[2]
[1]
[3]
[7]
[8]
Match and butt the edge.
10
5 8
3
6
2
7
4
9
1