Lexmark 5021-0XX - Manual (Page 190)

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
.