Brother MFC-J6720DW - Manual (Page 110)

96
Cleaning and checking
the machine
A
Cleaning the scanner
A
a
Unplug the machine from the AC power
outlet.
b
Lift the document cover (1). Clean the
scanner glass (2) and the white
plastic (3) with a soft lint-free cloth
moistened with a non-flammable glass
cleaner.
c
In the ADF unit, clean the white bar (1)
and the glass strip (2) with a lint-free
cloth moistened with a non-flammable
glass cleaner.
NOTE
In addition to cleaning the scanner glass
and glass strip with a non-flammable glass
cleaner, run your fingertip 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 attempt.
2
1
3
1
2
i
When there is a
spot of dirt or
correction fluid
on the glass strip,
the printed
sample shows a
vertical line. After the glass
strip is cleaned,
the vertical line is
gone.