CHAPTER 4
Table
Periods of appearance of dirt, blank spots on images
Problem location | Diameter | Period on |
| Phenomenon |
| ||
|
| Dirt on back |
| ||||
(mm) | image (mm) | Dirt | Blank spot | Poor fixing | |||
| of paper | ||||||
|
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Transfer charging roller | 17.15 | About 54 |
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Upper fixing roller | 45 | About 141 |
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Lower fixing roller | 32 | About 100 |
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24 | About 75 |
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Feed roller | 24 | About 75 |
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Separation roller | 24 | About 75 |
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Photosensitive drum | 30 | About 94 |
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Developing cylinder | 20 | About 52 |
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Primary charging roller | 14 | About 44 |
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