Xerox 6120 manual Solving Problems with Printing Quality, Symptom, Cause, Solution

Symptom	Cause	Solution
There are toner	The two fuser	Return both green fuser separator
smudges or	separator levers are	levers to the plain paper setting.
residual images.	adjusted for envelope
	printing.
	One or more of the	Remove the toner cartridges and
	toner cartridges are	check each for damage. If one or more
	defective or installed	is damaged, replace it.
	incorrectly.
	The two green fuser	Return both green fuses separator
	separator levers are	levers to the plain paper setting.
	adjusted for envelope
	printing.
There are toner	The two fuser	Return both green fuser separator
smudges on the	separator levers are	levers to the plain paper setting.
back side of the	adjusted for envelope
page (whether or	printing.
not it has been
	The media transfer	Clean the media transfer belt.
duplexed).
	belt is dirty.	If you think the transfer belt should be
		replaced, contact Technical Support
		with the error information.
	The media path is dirty	Print several blank sheets and the
	with toner.	excess toner should disappear.
	One or more of the	Remove the toner cartridges and
	toner cartridges are	check each for damage. If one or more
	defective.	is damaged, replace it.
	The imaging unit is	Remove the imaging unit and check for
	defective.	damage. If it is damaged, replace it.
Abnormal areas	The laser lens is dirty.	Clean the laser lens.
(white, black, or
	A toner cartridge may	Remove the toner cartridge with the
color) appear in a
	be defective.	color causing the abnormal image.
regular pattern.
		Replace it with a new toner cartridge.
	The imaging unit is	Remove the imaging unit and check for
	defective.	damage. If it is damaged, replace it.

124 Solving Problems with Printing Quality