Check the Media Type
Verify whether the printer supports the type of media you are using. See the printer’s User’s Guide for more information.
When printing specialty media; check that it meets all recommendations specified in the printer’s Cardstock & Label guide.
Check the condition of the media.
Check How the media is being Loaded
Check media level. Make sure the paper trays are not over filled and that the tray guides are set correctly.
Make sure the media size & type settings match the actual paper size & type loaded in the printer.
Ensure that the media stack's corners are straight; i.e., that the sheets are aligned.
Check the condition of the media. Make sure its edges are not damaged and that no sheets are locked together.
Fan the media to make sure no sheets are locked together or that nothing is causing the sheets to stick together.
Check the Printer
Check for any obstruction in the paper path, duplex path, and media tray pass through areas. Clear the obstruction if one exists.
Check the condition of the pick roll and separator roller. Clean the rollers if necessary. Also check the paper tray for any signs of damage.\
Note: Should any of the rollers be worn out or if the paper tray shows signs of damage, contact Lexmark Technical Support for further assistance.