Service Manual
Adjustment and Troubleshooting
4-10
Samsung Electronics
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
Period
Phenomenon
1
OPC Drum
188.5 mm
White and Black Spots
2
Charge Roller
37.7mm
Black Spot and line and Periodic Band
3
Supply 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
7
50.3mm
Background
Pressure Roller
8
86.4mm
Black Spots or Vertical Black Band
Heat Roller
Содержание CLP 350N
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