Table 4-2-2
4 - 13
CHAPTER 4
Dirt
Diameter
(mm)
Phenomenon
Transfer charging roller
Upper fixing roller
Lower fixing 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
17.15
45
32
24
24
24
30
20
14
Poor fixing
Problem location
About 54
About 141
About 100
About 75
About 75
About 75
About 94
About 52
About 44
Periods of appearance of dirt, blank spots on images