Partial CMY Color Dots
Symptom Possible cause Necessary actions
Unexpected dots of the same
color appear at irregular
intervals.
Defective PCDU Replace the PCDU.
Defective image transfer belt
unit
Replace the image transfer belt
unit.
Defective fusing unit Replace the fusing unit.
Dark Irregular Streaks on Prints
Symptom Possible cause Necessary actions
Unexpected streaks appear at
irregular intervals.
Defective image transfer belt
Replace the image transfer belt
unit.
CMY Color Irregular Streaks
Symptom Possible cause Necessary actions
Unexpected streaks of the same
color appear at irregular
intervals.
Defective PCDU Replace the PCDU.
Defective image transfer belt
unit
Replace the image transfer belt
unit.
Ghosting
Symptom Possible cause Necessary actions
The same or similar image
appears two or more times.
They get weaker and weaker.
Defective PCDU Replace the PCDU.
Defective transfer unit Replace the transfer unit.
6. Troubleshooting
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