A SERVICE OF

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2-112 Service Manual
5021-0XX
Mottle service check
Variation of optical density is found in image.
Problem area Action
1 Rear cover assembly Rear cover assembly is not fixed in
place.
Open rear cover assembly and close
properly.
2 Transfer roller Transfer roller is not properly
installed.
Remove and reinstall transfer roller.
See Transfer roller removal on
page 4-8.
3 Paper Replace deformed paper.
4 Toner cartridge Replace defective toner cartridge.
5 HVPS Replace faulty HVPS. See High
voltage power supply (HVPS)
removal on page 4-59.