Muratec F-116 - Manual (Page 82)

Alignment and Troubleshooting
4-22
4.1.9 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.
Roller
Period (mm)
Phenomenon
Defective part
OPC Drum 75.6mm
White and Black Spots
Toner Cartridge
Developing Roller 35mm
White spot, Horizontal black band
Charging Roller 37.5mm Black Spot and line and periodic band
Supply Roller 49mm Periodic Band by little difference of density
Transfer Roller 47mm Ghost, Damaged image by abnormal transfer Transfer roller
Pressure Roller 75.4mm Background
Fuser
Fusing Roller 77.5mm Black spot and image ghost
1 OPC 5 Tranfer roller
2 Developing Roller 6 Pressure roller
3 Charging roller 7 Fusing roller
4 Supply Roller
7
6
1
5
2
3
4