Brother MFC-9120CN - Manual (Page 174)

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d
Clean the primary corona wire inside the
drum unit by gently sliding the green tab
from left to right and right to left several
times.
Note
Be sure to return the tab to the home
position (a) (1). If you do not, printed
pages may have a vertical stripe.
e
Slide each drum unit and toner cartridge
assembly into the machine. Make sure
that you match the toner cartridge color
to the same color label on the machine.
C-Cyan M-Magenta Y-Yellow K-Black
f
Repeat steps c to e to clean the
remaining corona wires.
g
Close the top cover of the machine.
h
Plug the machine’s power cord back into
the AC power outlet first, and then
reconnect all cables and telephone line
cord. Turn on the machine’s power
switch.
1
K
Y
M
C