Lexmark 5021-0XX manual White line II service check, Photodeveloper cartridge

5021-0XX

White line II service check

Vertical white line appears from leading edge to trailing edge of printed image.

	Problem area	Action
1	Laser unit assembly	Dust proof glass of laser unit is
	(printhead)	smeared with toner or foreign
		particles. Clean glass:
		• Remove toner cartridges and
		photodeveloper cartridge. See
		“Photodeveloper cartridge
		removal” on page 4-11.
		• Open dust-proof glass cover.
		• Clean glass.
		There are foreign particles adhering
		to laser beam opening of printhead.
		Clean laser beam opening.
2	Toner cartridge	Foreign particles mixed in toner
		cartridge. Replace faulty cartridge.

Diagnostic information 2-123