Samsung CLP-300 XSG 6.5 Periodic Defective Image

Samsung Electronics
Service Manual
Alignment and Adjustmens
6-12
6.5 Periodic Defective Image
If an image defects appears at regular intervals on the printed-paper, it is due to a faulty or damaged roller.
Refer to the table below and check the condition of the appropriate roller.
No Roller Period Phenomenon
1OPC Drum 188.5 mm White and Black Spots
2Charge Roller 37.7mm Black Spot and line and Periodic Band
3Supply Roller 47.5mm Periodic Band by little difference of density
4 Developing Roller 26.0mm White Spot, Horizontal black band
5 1
st
Transfer Roller 32.7mm Ghost, Damaged Image by abnormal tranfer
6 2
nd
Transfer Roller 57.5mm Ghost, Damaged Image by abnormal tranfer
786.6mm Black Spots or Vertical Black BandHeat Roller
886.6mm BackgroundPressure Roller