Lexmark 920dtn User's Guide - Page 145

Troubleshooting Symptom Dark Lines Light colored line, white line, or wrong colored line ABCDE ABCDE ABCDE Cause Solution A toner cartridge, a photodeveloper, or the transfer belt is defective. If the problem is on the front (print side) of the page: 1 Replace the color cartridge causing the line. 2 If you still have the problem, replace the photodeveloper (black alone or all other colors at once). If the problem is on the back of the page, replace the transfer belt. The LEDs are dirty. ABCDE ABCDE See Cleaning the LEDs. Streaked horizontal lines ABCDE ABCDE ABCDE A toner cartridge, a photodeveloper, the transfer belt, or fuser may be defective, empty, or worn. Replace the cartridge, photodeveloper (black alone or all other colors at once), transfer belt, or fuser as needed. Streaked vertical lines ABCDE ABCDE ABCDE • Toner is smeared before fusing to the paper. • The toner cartridge is defective. • If paper is stiff, try feeding from another tray. • Replace the color cartridge causing the streaks. Print irregularities ABCDE ABCDE ABCDE • Paper has absorbed moisture due to high humidity. • You are using paper that does not meet the printer specifications. • A photodeveloper, the transfer belt or the fuser is worn or defective. • Load paper from a fresh package in the paper tray. • Avoid textured paper with rough finishes. • Make sure the printer's paper type and paper weight settings match the type of paper you are using. • Replace photodeveloper (black alone or all other colors at once), the transfer belt or the fuser. Solving print quality problems 145