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Routine maintenance
29
A
Note
Be sure to return the tab to the home
position (a) (1). If you do not, printed
pages may have a vertical stripe.
e Put the drum unit and toner cartridge
assembly back into the machine.
f Close the front cover of the machine.
Cleaning the drum unit A
If your printout has black or white dots or
other repeating marks at 3.7 in. (94 mm)
intervals, the drum may have foreign
material, such as glue from a label stuck on
the drum surface. Follow the steps below to
solve the problem.
a Make sure that the machine is in the
Ready mode.
Press Menu, 6, 6, then press Start to
print the drum dot check sheet.
66.Drum Dot Print
Printing
b Leave the machine turned on for
10 minutes for the internal fan to cool
the extremely hot parts inside the
machine.
c After the machine has cooled down, turn
off the machine's power switch.
d Press the front cover release button and
then open the front cover.