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Routine maintenance
63
A
Replacing the drum unit A
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
Advanced User’s Guide: Cleaning the
machine.)
• Wait to unpack the new drum unit until
immediately before you put it in the
machine. Exposure to direct sunlight or
room light may damage the drum unit.
a Open the front cover, and then leave the
machine turned on for 10 minutes for the
internal fan to cool the internal parts of
the machine that are extremely hot.
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.
b Take out the drum unit and toner
cartridge assembly.