Canon LBP-800, Руководство по обслуживанию

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2) Circumferential scars on the photosensitive drum
Action: Replace the cartridge.
3) Defective developing cylinder
Action: Replace the cartridge.
4) Foreign materials are deposited on the laser outlet of the printer or the laser inlet of the car-
tridge.
Action: Remove the foreign materials.
5) Toner adhered to the face-down deliver sub-roller or fixing delivery sub-roller
Action: Clean the face-down delivery sub-roller or fixing delivery sub-roller.
6) Dirt or foreign materials on the fixing unit entrance guide.
Action: Clean the fixing unit entrance guide.
7) Foreign materials on the fixing film unit
Action: Replace the fixing film unit.
8) Dirty mirror in the laser/scanner unit
Action: Replace the laser/scanner unit.
II-9. Black horizontal lines
<Possible causes>
1) Horizontal scar(s) on the photosensitive drum
Action: Replace the cartridge.
2) Dirty, deformed or worn fixing film
Action: Replace the fixing film unit.
II-10. White horizontal lines
<Possible causes>
1) Horizontal scar(s) on the photosensitive drum
Action: Replace the cartridge.
2) Defective fixing film unit
Action: Replace the fixing film unit.
II-11. Blank spots
<Possible causes>
1) Lack of toner
Action: Remove the cartridge from the printer. Rock the cartridge in the way described on
page 1-9 Chapter 1, and then install it back to the printer. If the problem still
remains, replace the cartridge.
CHAPTER 4
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