Canon iR C6800 Series Service Manual page 408

Chapter 7
7.11.12.7 Removing the Photosensitive
Drum Cleaning Blade
1) Remove the E ring [1], and detach the locking
spring [2].
[1]
[2]
F-7-418
2) Remove the 5 screw s[1], and detach the
photosensitive drum cleaning blade.
[1]
[2]
F-7-419
7.11.12.8 Points to Note When
Replacing the Photosensitive
Drum Cleaning Blade
Be sure of the following when mounting the
photosensitive drum cleaning blade:
1. Do not turn over the cleaning blade. Replace it
when one side has been used.
2. Clean the area [1] of the retainer plate coming into
contact with the cleaning blade and the blade plate [2]
using alcohol; then, dry wipe it to remove any toner.
The fine particle of toner under the blade edge can
put the blade out of alignment, allowing toner on the
photosensitive drum to remain on the drum in the form
of residual toner.
7-142
0002-6256
F-7-420
3. Be sure to mount the cleaning blade [1] so that the
lot No. [2] faces the front and is upright.
F-7-421
0002-6258
4. Be sure to force the cleaning blade [1] firmly
against the retaining plate [2], and check to make sure
that there is no gap in the area [3] indicated in the
figure.
[1]
F-7-422
[1]
[2]
[2]
6 3
1 2
3 2
3 0
C 1
6 3
1 2
3 2
3 0
C 1
[1]
[3]
[2]