Lexmark C748 Print Quality Guide - Page 9

Print quality guide Page 9 of 13 MAKE SURE THE PHOTOCONDUCTOR IS NOT DEFECTIVE AND IS INSTALLED CORRECTLY Remove and then reinstall the photoconductor. If the problem continues, then the photoconductor may need to be replaced. MAKE SURE THE PRINT OR TONER CARTRIDGES ARE INSTALLED CORRECTLY, ARE NOT DEFECTIVE, AND NOT LOW ON TONER • Remove the cartridges, shake each cartridge from side to side to redistribute the toner, and then reinstall them. Warning-Potential Damage: Be careful not to touch the photoconductor drum. Doing so may affect the print quality of future print jobs. • Reinsert the cartridges. Note: If the quality does not improve, then replace the cartridges. CONTACT CUSTOMER SUPPORT If the problem continues, then the printer may need to be serviced. Streaked horizontal lines appear on prints ABCDE ABCDE ABCDE Try one or more of the following: SELECT ANOTHER TRAY OR FEEDER • From the printer control panel, navigate to: Paper Menu > Default Source > select a tray or feeder > Submit • For Windows users, select the paper source from Print Properties. • For Macintosh users, select the paper source from the Print dialog and pop‑up menus. MAKE SURE THERE IS NO WORN, DEFECTIVE, OR EMPTY PRINT OR TONER CARTRIDGE Replace the worn, defective, or empty cartridge.