Canon MultiPASS C5000 User Manual page 196

Clean the shaded Dirt and dust particles that collect on the underside of
the operation panel also affect the quality of the
areas of the
documents you copy or send.
operator panel
and the unit.
Use a soft, dry, clean cloth to wipe up paper dust around
the rollers.
When you are Press the center of the operator panel until it locks into
place.
finished, close the
operator panel.
Plug the unit back in.
9-6 Maintaining the MultiPASS C5000 Chapter 9