Ricoh Aficio SP C440DN Field Service Manual page 624

6. Troubleshooting
CMY Color Irregular Streaks
Symptom
Unexpected streaks of the same
color appear at irregular
intervals.
Ghosting
Symptom
The same or similar image
appears two or more times.
They get weaker and weaker.
Unfused or Partially Fused Prints
Symptom
Some parts of images are not
fused very well.
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Possible cause
Defective PCDU
Defective image transfer belt
unit
Possible cause
Defective PCDU
Defective transfer unit
Possible cause
Non-standard paper in use
Incorrect media type mode
Defective fusing unit
Necessary actions
Replace the PCDU.
Replace the image transfer belt
unit.
Necessary actions
Replace the PCDU.
Replace the transfer unit.
Necessary actions
Use recommended paper.
Select an appropriate media
mode.
Replace the fusing unit.