Canon LBP 2460 Service Manual - Page 241
Table 4-5-1, Developing cylinder
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CHAPTER 4 Table 4-5-1 Periods of appearance of dirt, blank spots on images Problem location Diameter (mm) Period on image (mm) Dirt Transfer charging roller Fixing upper roller Fixing lower roller Pick-up roller Feed roller Separation roller Photosensitive drum Developing cylinder Primary charging roller 17.9 About 56 40 About 126 30 About 94 24 About 75 24 About 75 24 About 75 30 About 93 20 About 75 14 About 44 Phenomenon Blank spot Dirt on back of paper Poor fixing 4 - 27
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Table 4-5-1
CHAPTER 4
4 - 27
Dirt
Diameter (mm)
Phenomenon
Transfer charging roller
Fixing upper roller
Fixing lower roller
Pick-up roller
Feed roller
Separation roller
Photosensitive drum
Developing cylinder
Primary charging roller
Period on
image (mm)
Blank spot
Dirt on back of
paper
17.9
40
30
24
24
24
30
20
14
Poor fixing
Problem location
About 56
About 126
About 94
About 75
About 75
About 75
About 93
About 75
About 44
Periods of appearance of dirt, blank spots on images