Dell C3765dnf Color Laser Printer - Manual (Page 541)

Troubleshooting Guide 539
Vertical blanks
4 Replace the transfer belt unit, the 2nd BTR, and the retard roller.
a Replace the transfer belt unit, the 2nd BTR, and the retard roller. See
"Replacing the Transfer Belt Unit, the 2nd Belt Transfer Roller (2nd
BTR), and the Retard Roller."
b After you replace the transfer belt unit, the 2nd BTR, and the retard
roller, click Chart Print on the Diagnosis tab.
c Click Pitch Configuration Chart.
The Pitch Configuration Chart is printed.
Does this solve your problem?
The task is complete. Contact Dell.
Action Yes No
1 Clean inside the printer by using the cleaning rod. See "Cleaning the
Raster Optical Scanner (ROS) Window."
a After the cleaning is completed, click Chart Print on the Diagnosis
tab.
b Click Pitch Configuration Chart.
The Pitch Configuration Chart is printed.
Does this solve your problem?
The task is complete. Go to action 2.
2 Ensure the light path is not covered.
a Remove the drum cartridges, and keep them in the dark place. See
"Removing the Drum Cartridge."
b Check the light path, and then remove the shielding.
c Re-install the drum cartridges. See "Installing a Drum Cartridge."
d Launch the Tool Box, and click Chart Print on the Diagnosis tab.
e Click Pitch Configuration Chart.
The Pitch Configuration Chart is printed.
Does this solve your problem?
The task is complete. Go to action 3.
3 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 Pitch Configuration Chart.
The Pitch Configuration Chart is printed.
Does this solve your problem?
The task is complete. Contact Dell.
Action Yes No