Periodic Defective Image - Samsung CLP-600 Series Service Manual

Alignment and Adjustmens

6.6 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 Transfer Roller
6 Gap-ring
7 Pressure Roller
Service Manual
6-20
Defective image
2. Charger roller
LSU
Doctor blade
75.40 mm
26.70 mm
42.40 mm
27.00 mm
43.90 mm
39.00 mm
114.6 mm
Cleaning blade
4. Developing roller
3. Supply roller
Typical defect
white and black spot
white/black spot and periodic band
periodic band
white spot, horizontal black band
periodic band
periodic band
white/black spot
1. OPC drum
Samsung Electronics