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).
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 a scrubbing or wiping motion because this might damage the drum.
Troubleshooting and routine maintenance
g Put the toner cartridge back into the drum unit until you hear it lock into place. If you put the cartridge in properly, the blue lock lever will lift automatically.
C
h Put the drum unit and toner cartridge assembly back in the machine.
i
j Plug the machine’s power cord back into
the AC power outlet first, and then reconnect all cables and telephone line cord. Turn on the machine’s power switch.
153 