Canon iR C6800 Series Service Manual page 912

Chapter 13
Checks to Make After Fitting the Photosensitive Drum Scoop Up Sheet
1. After mounting the photosensitive drum, check to make sure that the scoop up sheet is not warping or bent from
below.
2. If wrapped or bent, the scoop up sheet of the photosensitive drum is likely to lead to deformation. The
photosensitive drum must always be rotated in counterclockwise direction only, NEVER in clockwise direction.
F-13-26
13.3.2.5.2 Image Fault Occurring at Specific Intervals
Description
This image fault occurs in main scanning direction.
Field Remedy
By referring to the following table of intervals, clean or replace the part identified:
Roller intervals (approx.)
60 mm
37 mm
51 mm
63 mm
75 mm
168 mm
264 mm
188 mm
188 mm
113 mm
13-40
T-13-8
Part
black developing cylinder
color developing cylinder
primary transfer roller
secondary transfer inside roller
secondary transfer outside roller
ITB
photosensitive drum
fixing roller
pressure roller
outside heating roller
0005-4703