If you see
ink on the back of a printout, you can clean the paper guide
rollers to remove any excess ink.
If printouts are smeared or scuffed, load a few sheets of
plain paper in this size: Letter
(8.5 × 11 inches [216 × 279 mm]) or
A4 (8.3 × 11.7 inches
[210 × 297 mm]).
Make sure there are no
errors on the LCD screen.
Press the home button, if
necessary.
Select Maintenance >
Paper Guide Cleaning. You
see a screen like this:
Press the start button to start
cleaning the paper guide.
Repeat these steps as necessary until the paper comes out
clean.