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