Brother MFC-9450CDN - Manual (Page 163)

Troubleshooting and routine maintenance
147
C
d
Plug the machine’s power cord back into
the AC power outlet first, and reconnect
all cables and telephone line cord. Turn
on the machine’s power switch.
Note
In addition to cleaning the scanner glass
and glass strip with a non-flammable
ammonia-free glass cleaner, run your
finger tip over the glass to see if you can
feel anything on it. If you feel dirt or debris,
clean the glass again concentrating on
that area. You may need to repeat the
cleaning process three or four times. To
test, make a copy after each cleaning.
Cleaning the laser scanner
windows
C
CAUTION
Use only a dry, lint-free cloth to clean the
laser scanner windows.
DO NOT touch the laser scanner windows
with your fingers.
a
Turn off the machine’s power switch.
Unplug the telephone line cord first,
disconnect all cables, and then unplug
the power cord from the AC power
outlet.
b
Press the front cover release button and
then open the front cover.