Periodic Defective Image; Opc Drum; Transfer Roller; Heat Roller - Dell 5330dn Service Manual

4.1.4 Periodic Defective Image

If the delinquent image regularly occurs in the printed-paper, it is due to delinquent or damaged roller.
Refer to the table in below and check the condition of the roller.
No Roller
1

OPC Drum

2 Charge Roller
3 Supply Roller
4 Developing Roller
5

Transfer Roller

6

Heat Roller

7

Pressure Roller

Service Manual
Adjustment and Troubleshooting
Defective image
94.4 mm
38.3 mm
59.1 mm
50.3 mm
55.9 mm
125.6 mm
125.6 mm
OPC Drum
1
Charge Roller
2
Supply Roller
3
Developing Roller
4
<Rollers Layout>
4-11
Typical defect
White and Black Spots
Black Spot and Periodic Band
Periodic Band by little difference of density
White Spot, Horizontal black band
Ghost, Damaged Image by abnormal transfer
Black Spots or Vertical Black Band
Background
5
6
7
Transfer Roller
Heat Roller
Pressure Roller