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Troubleshooting and routine maintenance
99
C
IMPORTANT
• We recommend that you put the drum unit
and toner cartridge assembly on a clean,
flat surface with a sheet of disposable
paper or cloth underneath it in case you
accidentally spill or scatter toner.
• To prevent damage to the machine
caused by static electricity, DO NOT touch
the electrodes shown in the illustration.
c Push down the blue lock lever and take
the toner cartridge out of the drum unit.
IMPORTANT
• To avoid print quality problems, DO NOT
touch the shaded parts shown in the
illustrations.
• Wait to unpack a new drum unit until
immediately before you put it in the
machine. Exposure to direct sunlight or
room light may damage the drum unit.
• Be sure to seal up the used drum unit
tightly in a bag so that toner powder does
not spill out of the unit.
d Unpack the new drum unit.
e Put the toner cartridge firmly into the
new drum unit until you hear it lock into
place. If you put the cartridge in
correctly, the blue lock lever will lift
automatically.
Note
Make sure that you put in the toner
cartridge correctly or it may separate from
the drum unit.
f Clean the corona wire of the drum unit
by gently sliding the blue tab from right
to left and left to right several times.
Note
Be sure to return the blue tab to the home
position (a) (1). If you do not, printed
pages may have a vertical stripe.
g Put the new drum unit and toner
cartridge assembly in the machine.
Do not close the front cover.
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