Lexmark T642 Help Menu Pages - Page 21

Print defects guide Print defects guide Page 1 of 1 Match a set of repeating defects on a print job to the marks on one of the vertical lines. The line that best matches the defects on the print job indicates which particular part is causing the defect. For example, the distance between these two marks represents a repeating defect that occurs every 28.3 mm (1.11 in.), which means the charge rollers need to be replaced. Note: If the defect appears on the printed side of a single-sided print job, replace the toner cartridge before replacing the fuser. Replace the toner cartridge Developer roll defect 48.0 mm (1.89 in.) Photoconductor defect 96.8 mm (3.81 in.) Replace the fuser Backup roller Fuser hot roll defect defect 88.0 mm (3.46 in.) 95.2 mm (3.75 in.) Replace the charge rollers 28.3 mm (1.11 in.) Replace the transfer roller 51.7 mm (2.04 in.)