Canon Color ImageRunner C3380 Reference Manual page 412

2
3
7
4
7-62
Routine Cleaning
Remove the dust proof glass cleaner from the rear side of the
front cover.
Grip the dust proof glass cleaner by its tab, and slowly pull
and push it back and forth inside the machine (five or six
times).
Clean the four locations as shown below. There are marks on the main unit that
indicate the cleaning locations. Check these marks when cleaning the dust proof
glass.
When you have finished cleaning the dust proof glass, gently
push the dust proof glass cleaner back onto the rear side of
the front cover.
Place the dust proof glass cleaner back on the rear side of the front cover with its
tip facing the left direction.
Dust Proof Glass Cleaner