Lexmark T640 User Manual page 112

Problem
Part or all of the page is
printed in black.
The job prints, but the top and
side margins are incorrect.
Ghost images appear.
Gray background prints.
Some of the print is cut off on
the sides, top, or bottom of
the media.
Print is skewed or
inappropriately slanted.
Transparency print quality is
poor.
Troubleshooting
Action
Check the print cartridge to see if it is installed correctly.
• Make sure the Paper Size setting in the Paper menu is correct.
• Make sure the margins are set correctly in your software application.
• Make sure the Paper Type setting in the Paper menu is correct.
• Replace the photoconductor kit.
• The Toner Darkness setting may be too dark. Change the Toner Darkness setting in
the quality menu.
• Adjust the Brightness setting darker.
• Adjust the Contrast setting lighter.
• See the tables on page 113 for more settings information.
• The print cartridge may be defective. Replace the print cartridge.
Move the guides in the tray to the proper positions for the size loaded.
• Use only transparencies recommended by the printer manufacturer.
• Make sure the Paper Type setting in the Paper menu is set to Transparency.
Solving print quality problems
112