Xerox Phaser 3120 Service Manual

Also see for 3130 - Phaser B/W Laser Printer: Specifications Install guide User guide Quick reference guide

4-8TROUBLESHOOTINGService Manual4.2.5 Light Image• Description The printed image is light, with no ghost.Digital PrinterDigital PrinterDigital PrinterDigital PrinterDigital PrinterCheck and Cause Solution1. Develop roller is stained when the tonerof developer cartridge is almost con-sumed.2. Ambient temperature is below than 10°C.3. Bad contact caused by the toner stainsbetween the high voltage terminal in theHVPS and the one in the set.4. Abnormal output from the HVPS.1. Check if the Toner Save mode is off.2. Replace the developer cartridge and try toprint out.3. Wait 30 minutes after printer is powered onbefore you start printing.4. Clean up the contaminated area by thetoner.5. Replace the HVPS if the problems are notsolved by the above four directions.4.2.6 Dark Image or a Black• Description The printed image is dark.Digital PrinterDigital PrinterDigital PrinterDigital PrinterDigital PrinterCheck and Cause Solution1. No charge voltage in the engine board.( Perform DCU diagnostic code 01)2. Charge voltage is not turned on due tothe bad contacts between power supplyin the side of the Developer and chargeterminal of HVPS.1. Clean the high voltage charge terminal.2. Check the state of the connector whichconnects the engine board and HVPS.3. Replace the HVPS if not solved by theabove direction 1 and 2.