Brother MFC-9125CN User Manual page 180

c
See the print sample to identify the color
causing the problem. The color of the
spots is the color of the drum you should
clean. For example, if the spots are
cyan, you should clean the drum for
cyan. Take out the drum unit and toner
cartridge assembly of the color causing
the problem.
IMPORTANT
• We recommend that you place the drum
unit and toner cartridge assembly on a
clean, flat surface with a sheet of
disposable paper or cloth underneath it in
case you accidentally spill or scatter toner.
• To prevent damage to the machine from
static electricity, DO NOT touch the
electrodes shown in the illustration.
164
d
Push down the green-labeled lock
lever (1) and take the toner cartridge out
of the drum unit.
IMPORTANT
Handle the toner cartridge carefully. If
toner scatters on your hands or clothes,
wipe or wash it off with cold water at once.
e
Put the print sample in front of the drum
unit, and find the exact position of the
poor print.
1