Brother DCP-9055CDN Basic User's Manual page 81

i
On the problem color drum, use the
numbered markers next to the drum
roller to find the mark. For example, a
cyan dot in column 2 on the check sheet
would mean that there is a mark on the
cyan drum in the "2" region.
Routine maintenance
j
Turn the drum unit gear toward you by
hand while looking at the surface of the
suspected area.
k
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 cotton swab until the dust
or paper powder on the surface comes
off.
IMPORTANT
DO NOT clean the surface of the
photosensitive drum with a sharp object.
A
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