Page: 82Service Guide OL400Chapter 4 Failure & Repair AnalysisRAP 07:Light or Blurred ImagesSTARTDoes the printer contain sufficient toner?NO Add TonerYES 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 thebottom of the paper goes under the hopping roller. Lift the upperunit, 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 ENDNO Replace the Image Drum Cartridge.Power ON the printer power while pressing the RECOVER switch to clear the drumcounter.Is the problem removed?YES ENDNO Replace the Engine Controller Board.Is the problem resolved?YES ENDNO Replace the High Voltage Power Supply Unit.ENDCopyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business
