Brother MFC-9125CN User Manual page 178

f
Turn the drum unit gear by hand while
looking at the surface of the OPC
drum (1).
g
When you have found the mark on the
drum that matches the print sample,
wipe the surface of the OPC drum with a
dry cotton swab until the dust or glue on
the surface comes off.
IMPORTANT
DO NOT clean the surface of the
photosensitive drum with a sharp object.
166
h
Put the toner cartridge back firmly into
the drum unit until you hear it lock into
place.
1
Note
Make sure that you put in the toner
cartridge correctly or it may separate from
the drum unit.
h