Lexmark 640, 644 Solving paper feed problems, See the Card Stock & Label Guide available on our

Troubleshooting

Solving paper feed problems

Symptom	Cause	Solution
Paper frequently jams.	You are using paper that does not	Use recommended paper and other specialty media.
	meet the printer specifications.	See the Card Stock & Label Guide available on our
		Lexmark Web site at www.lexmark.com for detailed
		specifications.
		See Avoiding jams for information that can help prevent
		jams from occurring.
	You have loaded too much paper	Make sure the stack of paper you load does not exceed
	or too many envelopes.	the maximum stack height indicated in the tray or on the
		multipurpose feeder.
	Guides in the selected tray are not	Move the guides in the tray to the correct position.
	set to the appropriate position for
	the size paper loaded.
	The paper has absorbed moisture	Load paper from a fresh package.
	due to high humidity.	Store paper in its original wrapper until you load it.
		See Storing print media for more information.
	The pick rolls may be worn.	Replace the pick rolls.
		See Ordering pick rollers for more information.
The Paper Jam	You have not pressed Go or have	Clear paper from the entire paper path, and then
message remains after	not cleared the entire paper path.	press	.
you remove the jammed		See Clearing jams for more information.
paper.
The page that jammed	Jam Recovery in the Setup menu	Set Jam Recovery to Auto or On.
does not reprint after you	is set to Off.	See the Menus and Messages Guide for more
clear the jam.
		information.
Blank pages feed into	An incorrect media type is loaded	Load the correct type media for your print job, or change
the output bin.	in the tray being printed from.	the Paper Type to match the type of media loaded.
		See the Menus and Messages Guide for more
		information.

Solving paper feed problems

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