Samsung CLP-310N Service Manual - Page 64
Periodic Defective Image
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Alignment & Troubleshooting 4.1.5 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 1 OPC Drum 2 Charge Roller 3 Supply Roller 4 Developing Roller 5 1st Transfer Roller 6 2nd Transfer Roller 7 Pressure Roller 8 Heat Roller Period 188.5mm 37.7mm 32.7mm 26.0mm 43.8mm 54.64mm 50.3mm 86.4mm Phenomenon White and Black Spots Black Spot and line and Periodic Band Periodic Band by little difference of density White Spot, Horizontal black band Ghost, Damaged Image by abnormal tranfer Ghost, Damaged Image by abnormal tranfer Background Black Spots or Vertical Black Band Exit roller Pressure roller T2 roller Regi roller T1 roller oŒˆ›G™–““Œ™ ITB OPC OPC Charge roller Supply ro Deve roller Pick up roller Service Manual 4-10 Samsung Electronics
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