c Return the blue tab and snap it into the home position (b).
CAUTION
If you do not return the blue tab to the home position (b) your printed pages may have vertical black stripes on them.
d Put the drum unit and toner cartridge assembly back in the machine.
e Close the front cover.
Cleaning the drum unit
a Take out the drum unit and toner cartridge assembly, and then take out the toner cartridge from the drum unit.
b Put the print sample in front of the drum unit, and find the exact position of the poor print.
c Turn the white gear on the drum as you check the surface of the OPC drum (1).
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