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Routine Maintenance
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When you replace the drum unit with a new one, you need to reset the drum counter by completing the
following steps:
a Turn the printer power switch back on.
b Press the + or - key to choose Machine Info..
c Press OK to proceed to the next menu level, and then press the + or - key to choose
Reset Parts Life.
d Press OK, and then press the + key to choose Drum Unit.
e Press OK two times.