Lexmark C91x Service Manual page 143

Problem
Print on the page is skewed.
A white gap is noticeable
between color fills, due to poor
color registration.
Be sure the width guides in the paper tray
or the multipurpose feeder fit snugly
against the media you loaded.
Be sure the paper you load fits under the
two corner tabs at the front of the tray.
Be sure charge roll or belt is seated
properly.
Be sure all four corners of the printer are
resting on a steady flat surface.
Turn the printer off and back on. The
printer calibrates the print head timing,
which may improve registration. Be sure
that Auto Registration, in diagnostic
mode, is On.
Diagnostic information
5055-xxx
Action
2-93