Brother DCP-9055CDN Basic User's Manual page 80

IMPORTANT
To avoid print quality problems, DO NOT
touch the shaded parts shown in the
illustrations.
72
g
Turn the drum unit over by holding the
green handles. Make sure that the drum
unit gears (1) are on the left hand side.
1
h
Note the following information from the
drum dot check sheet:
 Dot color
For example, a mark on the cyan
drum would produce a cyan dot on
the check sheet.
 Dot location
Note which of the printed columns
the dot appears in.