Samsung SCX-4216F Service Manual

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Contents

7-12TROUBLESHOOTINGSamsung ElectronicsService Manual7.3.5 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.(Run self-test and check 1~4)1. Check if the Toner Save Mode is off.2. No 1 : Replace the developer cartridge andtry to print out.3. No 2 : Wait 30 minutes after printer is pow-ered on before you start printing.4. No3 : Clean up the contaminated area bythe toner.5. Replace the HVPS if the problems are notsolved by the above four directions.7.3.6 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 Main PBA.( Perform Engine Test Mode : Diagnosticcode 4 HVPS check.)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. If steps 1 and 2 above did not correct theproblem, replace the HVPS .