Troubleshooting for Image Quality Problems
SM 6-149 D0CA/D0C9/D0C8/D0CB
6.12.14 MISSING PARTS OF IMAGES
Symptom Possible cause Necessary actions
Some parts of images are
missing.
Defective PCDU Replace the PCDU.
Defective image transfer belt
unit
Replace the image transfer belt
unit.
Defective paper transfer
roller
Replace the paper transfer
roller.
Defective fusing unit Replace the fusing unit.
6.12.15 DIRTY BACKGROUND
Symptom Possible cause Necessary actions
Backgrounds of one CMYK color are too dense. Defective
PCDU
Replace the
PCDU.
Backgrounds of more than one CMYK color are too
dense.
Defective HVPS Replace the HVPS.
6.12.16 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.
6.12.17 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.
6.12.18 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.
6.12.19 GHOSTING
Symptom Possible cause Necessary actions
The same or similar image appears two or more times. Defective PCDU Replace the PCDU.
To Next Page
Loading...
