Canon iR C6800 Series Service Manual page 920

Chapter 13
13.3.2.6 Smudged/Streaked
13.3.2.6.1 Vertical Lines
Cause
The presence of dirt on the deflecting mirror inside the laser scanner unit can cause lines in vertical direction.
Field Remedy
Clean the deflecting mirror as follows:
1) Open the hopper assembly.
2) Hold the mirror cleaning tool [1] as shown, and fit it in the slit [2]. (mirror cleaning tool: FL2 2474)
F-13-33
3) Slide out the fixing/feeding assembly.
4) Slide out the process unit.
5) Pull on the grip [1] found on the edge of the dust blocking plate to detach the glass plate from the machine.
F-13-34
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[1]
[2]
[1]
0005-5802