Cleaning The Laser Scanner Windows - Brother  HL-4140CN User 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, and connect all
cables. Turn on the machine.
62
Cleaning the laser scanner
windows
a
Turn off the machine. Disconnect all
cables, and then unplug the power cord
from the electrical socket.
b
Press the front cover release button and
then open the front cover.
A