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Service Guide OL400
Chapter 4 Failure & Repair Analysis
RAP 07:Light or Blurred Images
START
Does the printer contain sufficient toner?
NO
Add Toner
YES
Is the paper recommended for use in a laser printer?
NO
Use paper recommended for a laser printer.
YES
Print the MENU. Raise the stacker cover to stop the print cycle just as the
bottom of the paper goes under the hopping roller. Lift the upper
unit,
remove the paper and look at the image drum.
Is there a dark toner image on the drum?
YES
Replace the transfer charger assembly.
NO
Clean the LED Head.
Is the problem removed?
YES
END
NO
Replace the Image Drum Cartridge.
Power ON the printer power while pressing the
RECOVER
switch to clear the drum
counter.
Is the problem removed?
YES
END
NO
Replace the Engine Controller Board.
Is the problem resolved?
YES
END
NO
Replace the High Voltage Power Supply Unit.
END
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