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Service Guide OL830
Chapter 4 Failure & Repair Analysis
RAP 14: Dark Background
START
Is the charge wire dirty?
YES Clean the charge wire.
NO Has the image drum been exposed to external light?
YES Install the image drum cartridge in the printer and wait 30 minutes. This will allow the
drum surface to recover its photoconductive properties.
NO Is the fuser assembly dirty?
YES Replace the fuser cleaner pad.
NO Replace the image drum cartridge.
Is the problem solved?
YES END
NO Replace the high voltage power supply unit.
END
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