Cleaning The Corona Wire - Brother MFC-7470D Basic User's Manual

c
In the ADF unit, clean the white bar (1)
and the scanner glass strip (2)
underneath it with a soft lint-free cloth
moistened with water.
1
2
Note
In addition to cleaning the scanner glass
and glass strip with a soft lint-free cloth
moistened with water, 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.
d
Plug the machine's power cord back into
the electrical socket first, connect all
cables, and then plug in the telephone
line cord. Turn on the machine.
68

Cleaning the corona wire

If you have print quality problems, clean the
corona wire as follows:
a
Make sure the machine is turned on,
then open the front cover and wait for 10
minutes to cool down the machine.
WARNING
HOT SURFACE
After you have just used the machine, some
internal parts of the machine will be
extremely hot. Wait for the machine to cool
down before you touch the internal parts of
the machine.
A