Brother MFC-8710DW - Manual (Page 70)

62
g
Plug the machine’s power cord back into
the AC power outlet first, connect all
cables, and then plug in the telephone
line cord.
h
Turn on the machine’s power switch.
Cleaning the corona wire
A
If you have print quality problems or the LCD
shows Drum Error, clean the corona wire
as follows:
a
Leave the machine turned on for 10
minutes for the internal fan to cool the
extremely hot parts inside the machine.
b
Press the front cover release button and
then open the front cover.
c
Take out the drum unit and toner
cartridge assembly.