Cleaning The Corona Wires - Brother MFC-9840CDW User Manual

2
Push the drum unit in until it stops.
g
Close the front cover of the machine.
h
Plug the machine's power cord back into
the AC electrical socket first, and
reconnect all cables and telephone line
cord. Turn on the machine's power
switch.
Troubleshooting and routine maintenance

Cleaning the corona wires

If you have print quality problems, clean the
corona wires as follows:
a
Turn off the machine's power switch.
Unplug the telephone line cord first, and
then unplug the power cord from the
electrical socket.
b
Press the front cover release button and
then open the front cover.
C
C
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