Lexmark C782 Service Manual - Page 148

5061 Quality troubleshooting (continued) Symptom Cause Streaked horizontal lines ABCDE The print cartridges, the transfer roller, image transfer unit, or fuser may be defective, empty, or worn. ABCDE ABCDE Solution Replace the print cartridge, the transfer roller, the image transfer unit, or fuser as needed. From the printers operator panel, print the repetitive defects guide to determine which component needs to be replaced. Streaked vertical lines ABCDE ABCDE ABCDE • Toner is smeared before fusing to the paper. • The print cartridge is defective. • If paper is stiff, try feeding from another tray. • Replace the color print 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. • The image transfer unit and transfer roller are worn or defective. • 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 paper type, paper texture, and paper weight settings match the type of paper you are using. • Replace the image transfer unit and transfer roller. • Replace the fuser. 2-106 Service Manual