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c Push down the blue lock lever and take
the toner cartridge out of the drum unit.
IMPORTANT
• Handle the toner cartridge carefully. If
toner scatters on your hands or clothes,
wipe or wash it off with cold water at once.
• To avoid print quality problems, DO NOT
touch the shaded parts shown in the
illustrations below.
d Put the print sample in front of the drum
unit, and find the exact position of the
poor print.
e Turn the drum unit gear by hand while
looking at the surface of the OPC
drum (1).
f When you have found the mark on the
drum that matches the print sample,
wipe the surface of the OPC drum with a
dry cotton swab until the dust or glue on
the surface comes off.
IMPORTANT
• The drum is photosensitive so DO NOT
touch it with your fingers.
• DO NOT clean the surface of the
photosensitive drum with a sharp object.
• DO NOT use excessive force when
cleaning the drum unit.
1