Periodic Defective Image - Samsung Xpress M288 Series Service Manual

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.
1
Roller
1 Pressure Roller
2 Heat Roller
3 Charging Roller
4 OPC Drum
5 Supply Roller
6 Developing Roller
7 Transfer Roller
Copyright© 1995-2013 SAMSUNG. All rights reserved.
Period (mm) Phenomenon
75.4 mm Background
77.6 mm Black spot and image ghost
26.7 mm Black Spot and line and periodic band
75.49 mm White and Black Spots
63.22 mm Periodic Band by little difference of density
36.75 mm White spot, Horizontal black band
47.12 mm Ghost, Damaged image by abnormal transfer
3
5
6
4
7
4. Alignment and Troubleshooting
Defective part
Fuser
Toner Cartridge
Transfer roller
4-16