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p Use the numbered markers next to the
drum roller to find the mark. For
example, a dot in column 2 on the Drum
Dot Check Sheet would mean that there
is a mark in the "2" region of the drum.
q Turn the edge of the drum unit toward
you by hand while looking at the surface
of the suspected area.
DO NOT touch the drum’s surface. To
avoid print quality problems, hold the
edges of the drum unit.
r When you have found the mark on the
drum that matches the Drum Dot Check
Sheet, wipe the surface of the drum
gently with a dry cotton swab until the
mark on the surface comes off.
DO NOT clean the surface of the
photosensitive drum with a sharp object or
any liquids.
s Turn the drum unit back over.
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