
Alignment & Troubleshooting
Service Manual
4-23
Samsung Electronics
4.1.7 Abnormal Image Printing and Defective Roller
If abnormal image prints periodically, check the parts shown below.
No Roller Abnormal image period Kind of abnormal image
1 OPC Drum 75.5mm :KLWHVSRW%ORFN6SRWV
2 Charge Roller 26.7mm Block Spot and Periodic Band
3 Supply Roller 47.1mm Periodic Band by little difference of density
4 Developing Roller 35.2mm :KLWH6SRW+RUL]RQWDOEODFNEDQG
5 Transfer Roller 47mm Ghost, Damaged Image by abnormal transfer
6 +HDW5ROOHU 77.8mm Black Spots or Vertical Black Band
7-1 3UHVVXUH5ROOHUBVW 62.8mm Blackground
7-2 3UHVVXUH5ROOHUBVW 37.7mm Blackground
7-1
7-2
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