Image Problem Troubleshooting
SM 7-11 D093/D094
Trouble-
Shooting
4. Vertical Black Lines or Bands
Possible causes:
Line caused by defective cleaning blade
Band caused by bent cleaning blade
Line caused by dirty corona wire
Band caused by dirty OPC drum
Line caused by scratched OPC drum
5. Horizontal Black Lines or Bands
Possible causes:
Line caused by scratched OPC drum
Line caused by discharge at trailing edge of paper
Band caused by development bias leakage
6. Light Images
Possible causes:
Damp paper
Corona leakage
Defective T&S power pack
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