Brother MFC-9140CDN Basic User's Manual page 96

g
Put the toner cartridge firmly into the
new drum unit until you hear it lock into
place. If you put the cartridge in
correctly, the green lock lever will lift
automatically.
NOTE
Make sure you put the toner cartridge in
correctly or it may separate from the drum
unit.
86
h
Clean the 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). The arrow on the tab must
be aligned with the arrow on the drum unit.
If it is not, printed pages may have a
vertical stripe.
i
Repeat step c and step h to clean
each of the three remaining corona
wires.
NOTE
When cleaning the corona wires, you do
not have to remove the toner cartridge
from the drum unit.
1