Lexmark C780, C782 manual Bcd E

Troubleshooting

Symptom	Cause	Solution
Gray background	• The Toner Darkness setting is	• Select a different Toner Darkness setting from the
	too dark.	printer driver before sending the job to print.

• The print cartridges are	• Replace the print cartridge that corresponds to
defective.	the color displayed on the control panel.
ABCDE
ABCDE
ABCDE

Uneven print density	• The print cartridges are	• Replace the print cartridge that corresponds to
	defective.	the color displayed on the control panel.

	• The transfer roller is worn or	• Replace the transfer roller.
ABCDE	defective.	• Replace the image transfer unit.
	• The image transfer unit is worn
	or defective.
ABCDE
ABCDE

Ghost Images	Toner level is low in the print	Replace the print cartridge that corresponds to the
	cartridges.	color displayed on the control panel.

Clipped images	Guides in the selected tray are set	Move the guides in the tray to the proper positions
(Some of the print is cut	for a different size paper than	for the size loaded.
	what is loaded in the tray.
off on the sides, top, or
bottom of the paper.)
Incorrect margins	• Guides in the selected tray are	• Move the guides in the tray to the proper positions
	set for a different size paper	for the size loaded.
	than what is loaded in the tray.	• Set the Paper Size to match the media in the tray.

•Auto size sensing is set to off, but you loaded a different size paper in a tray. For example, you inserted A4 size paper into the selected tray but did not set the Paper Size to A4.

Skewed print	• Guides in the selected tray are	• Move the guides in the tray to the proper positions
(Print is inappropriately	not in the correct position for	for the size loaded.
	the paper size loaded in the	• See the Card Stock & Label Guide available on
slanted.)
	tray.	the Lexmark Web site at www.lexmark.com for
	• You are using paper that does	detailed specifications.
	not meet the printer	• For more information, see Media specifications.
	specifications.
Blank pages	The print cartridges are defective	Replace the print cartridge that corresponds to the
	or empty.	color displayed on the control panel.

Solving print quality problems

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