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Repeating Bands, Lines, Marks, or Spots
This is usually caused by a damaged roller. In some instances, the spots may be dark
instead of white and are repeated.
Initial Actions
Perform Initial Actions from
Print Quality Troubleshooting Practices
Print the
Color Test
pages to identify the color causing the defect.
Print multiple pages, and then measure the defect and compare it to the Repeating
Defects table (Below) to identify the problem component.
Areas of the Printer that Apply to Repeating Bands, Lines, Marks, or Spots
Imaging Unit
Fuser
Transfer Unit
Note:
Consult the “Repeating Defect Spacing Chart” below.
Repeating Defects Spacing
Component
Defect
Spacing
Unit
to
Replace
Imaging Drum
94.0-94.25
mm
Imaging
Unit
Developer Roller
49.0-49.60
mm
Imaging
Unit
Charge Roller
37.4-44.0
mm
Imaging
Unit
Supply
Roller
55.8-57.8
mm
Imaging
Unit
Fuser
Roller
87.3-87.6
mm
Fuser
Transfer
Roller
57.8
mm
Transfer
Unit
Transfer Unit Belt
706 mm
Transfer
Unit