Brother International MFC 7440N Users Manual - English - Page 134

Cleaning the laser scanner window, CAUTION, HOT SURFACE

Page 134 highlights

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 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. Cleaning the laser scanner window B WARNING DO NOT use isopropyl alcohol to clean the laser scanner window. CAUTION DO NOT touch the laser scanner window with your fingers. a Before you clean the inside of the machine, turn off the machine's power switch. Unplug the telephone line cord first, and then unplug the power cord from the AC power outlet. b Open the front cover and slowly take out the drum unit and toner cartridge assembly. WARNING HOT SURFACE After you have just used the machine, some internal parts of the machine will be extremely hot. When you open the front or back cover (back output tray) of the machine, DO NOT touch the shaded parts shown in the illustration. If you do this, you may get burned. 120

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120
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 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.
Cleaning the laser scanner
window
B
WARNING
DO NOT use isopropyl alcohol to clean the
laser scanner window.
CAUTION
DO NOT touch the laser scanner window
with your fingers.
a
Before you clean the inside of the
machine, turn off the machine’s power
switch.
Unplug the telephone line cord first, and
then unplug the power cord from the AC
power outlet.
b
Open the front cover and slowly take out
the drum unit and toner cartridge
assembly.
WARNING
HOT SURFACE
After you have just used the machine, some
internal parts of the machine will be
extremely hot. When you open the front or
back cover (back output tray) of the
machine, DO NOT touch the shaded parts
shown in the illustration. If you do this, you
may get burned.