Brother DCP-7040 - Manual (Page 78)

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d
Put the drum unit and toner cartridge
assembly back in the machine.
e
Close the front cover.
f
Plug the machine’s power cord back into
the AC power outlet.
Turn on the machine’s power switch.
Cleaning the corona wire
B
If you have print quality problems, clean the
corona wire as follows:
a
Turn off the machine’s power switch.
Disconnect all cables, and then unplug
the power cord from the AC power
outlet.
b
Open the front cover.
c
Slowly take out the drum unit and toner
cartridge assembly.
CAUTION
We recommend that you place the drum
unit and toner cartridge assembly on a
clean, flat surface with a piece of
disposable paper or cloth underneath it in
case you accidentally spill or scatter toner.
Handle the toner cartridge carefully. If toner
scatters on your hands or clothes, wipe or
wash it off with cold water at once.