You need to clean the printer when prints are striped or smeared. How often you need to clean the printer will depend on how heavily the printer is used and the environment in which it is used.

Selecting the source for cleaning pages

Cleaning supplies

Light stripes on prints

Cleaning for oily streaks

Cleaning for ink smears: internal paper path

Cleaning for ink smears: paper-feed rollers

Cleaning for ink smears: paper-exit path

Cleaning for media tray jams

Cleaning for lower tray jams: paper-feed rollers