Dell C3765dnf Color Laser Printer - Manual (Page 543)

Troubleshooting Guide 541
Fog
Bead-Carry-Out (BCO)
Action Yes No
1 Check the light fatigue pattern using the Pitch Configuration Chart.
a Launch the Tool Box, and click Chart Print on the Diagnosis tab.
b Click Pitch Configuration Chart.
The Pitch Configuration Chart is printed.
Does the pattern on the output match with that on the Pitch
Configuration Chart?
Go to action 2. Contact Dell.
2 Replace the drum cartridges. See "Replacing the Drum Cartridges."
Does this solve your problem? The task is complete. Contact Dell.
Action Yes No
1 Replace the drum cartridges.
a Replace the drum cartridges. See "Replacing the Drum Cartridges."
b After you replace the drum cartridges, click Chart Print on the
Diagnosis tab.
c Click 4 Colors Configuration Chart.
The 4 Colors Configuration Chart is printed.
Does this solve your problem?
The task is complete. Contact Dell.