Lexmark X748DE, 34TT027 Streaked horizontal lines appear on prints, Select Another Tray or Feeder

Troubleshooting 317

MAKE SURE THE PRINT CARTRIDGE IS NOT LOW ON TONER

When 88.xx [color] cartridge low appears, make sure the toner is distributed evenly within the print cartridge:

1Remove the print cartridge.

Warning—Potential Damage: Be careful not to touch the photoconductor drum. Doing so may affect the print quality of future print jobs.

2Firmly shake the cartridge side-to-side and front-to-back several times to redistribute the toner.

3Reinsert the print cartridge.

If the problem continues, the printer may need to be serviced. For more information, contact Customer Support.

Streaked horizontal lines appear on prints

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Try one or more of the following:

SELECT ANOTHER TRAY OR FEEDER

•From the printer control panel Paper Menu, select Default Source.

•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 TONER CARTRIDGE

Replace the worn, defective, or empty toner cartridge.

CLEAR THE PAPER PATH AROUND THE TONER CARTRIDGE

CAUTION—HOT SURFACE: The inside of the printer might be hot. To reduce the risk of injury from a hot component, allow the surface to cool before touching.

Clear any paper you see or clean any visible toner from the paper path. If the problem persists, then contact Customer Support.