TroubleshootingService Manual 7-117.3.8 Background Contamination7.3.9 Ghosting 1Example Possible Cause Sequence of Repair ActionsLight or dark background contamination appears all over the paper.1. Using unsupported media.2. Printing large quantities of lowcoverage (2%) pages or not usingthe printer for a long period of time.3. The toner cartridge life has expired.4. The transfer rollers up/downmovement is off.5. There is a problem with the HVPS.a. Use only approved media.b. The toner cartridge is designed to print5,000 sheets at 5% coverage. If 2% isconsistently used, backgroundcontamination can occur.c. Replace the toner cartridge.d. Clean the transfer roller bushings.e. Clean the high voltage terminals.f. Replace the HVPS.Example Possible Cause Sequence of Repair ActionsThere is ghosting at 75.5 mm intervals from the OPC drum while printing on card stock, transparencies or using theMPT.1. When printing on card stock, thickpaper or transparenices a highertransfer voltage is required.a. Ensure supported media is being used andthe correcy type is selected in the printerdriver and software application.Digital PrinterDigital PrinterDigital PrinterDigital PrinterDigital PrinterDigital PrinterDigital PrinterDigital PrinterDigital PrinterDigital PrinterDigital PrinterDigital PrinterDigital PrinterDigital PrinterDigital Printer
