Brother MFC-8520DN User Manual page 81

Replacing the drum unit
Important
• While removing the drum unit, handle it
carefully because it may contain toner. If
toner scatters on your hands or clothes,
immediately wipe or wash it off with cold
water.
• Every time you replace the drum unit,
clean the inside of the machine. (See
Cleaning and Checking the machine
uu page 77.)
• Wait to unpack the new drum unit
immediately before you put it in the
machine. Exposure to direct sunlight or
room light may damage the drum unit.
a
Leave the machine turned on for 10
minutes for the internal fan to cool the
extremely hot parts inside the machine.
b
Press the front cover release button and
then open the front cover.
c
Take out the drum unit and toner
A
cartridge assembly.
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.
Routine maintenance
73
A