Lexmark 25A0591, C736 manual Streaked vertical lines, Toner fog or background shading appears on

Troubleshooting 187

THE TONER CARTRIDGE MAY BE WORN, DEFECTIVE, OR EMPTY

Replace the toner cartridge.

THE FUSER MAY BE DEFECTIVE

Replace the fuser.

THE PHOTOCONDUCTOR MAY BE DEFECTIVE

Replace the photoconductor.

Streaked vertical lines

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ABCDE

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These are possible solutions. Try one or more of the following:

THE TONER MAY HAVE SMEARED

Select another tray or feeder to feed paper for the job:

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

THE TONER CARTRIDGE MAY BE DEFECTIVE

Replace the toner cartridge.

THE TRANSFER MODULE MAY BE WORN OR DEFECTIVE

Replace the transfer module.

Toner fog or background shading appears on the page

These are possible solutions. Try one or more of the following:

THE TONER CARTRIDGE MAY BE DEFECTIVE OR INSTALLED INCORRECTLY

Reinstall or replace the toner cartridge.