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Troubleshooting and routine maintenance
133
C
c Clean the corona wire inside 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.
d Put the drum unit and toner cartridge
assembly back in the machine.
e Close the front cover.
f Plug the machine’s power cord back into
the electrical socket first, and then
reconnect all cables and telephone line
cord. Turn on the machine.
IMPORTANT
To avoid print quality problems, DO NOT
touch the shaded parts shown in the
illustrations below.
Cleaning the drum unit C
If you have print quality problems, clean the
drum unit as follows.
a Turn off the machine. Unplug the
telephone line cord first, and then
unplug the power cord from the
electrical socket.
b Open the front cover and slowly take out
the drum unit and toner cartridge
assembly.
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.
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