Completely blank image
Table 7-23. Causes for a completely blank image
Completely blank image
Cause
Solution
High-voltage PCB is defective. Replace the high-voltage PCB.
DC controller PCB is defective. Replace the DC controller PCB. Calibrate the
printer after replacing the DC controller. See
Calibrate now.
All black or solid color
Table 7-24. Causes for an all black or solid colored image
Causes for an all black or solid colored image
Cause
Solution
Poor contact in the drum ground, primary
charging bias, and developing bias contacts of
the high-voltage PCB and the print cartridge.
Clean the contacts on the cartridge for the
affected color. If they are still dirty after cleaning,
or if they are damaged, replace the cartridge.
Primary charging roller is defective. Replace the print cartridge for the affected color.
High-voltage PCB is defective. Replace the high-voltage PCB.
Laser/scanner unit is defective. Replace the laser/scanner unit for the affected
color.
Note
Calibrate the printer after you replace the laser
scanner. See
Calibrate now.
DC controller PCB is defective. Replace the DC controller PCB. Calibrate the
printer after replacing the DC controller. See
Calibrate now.
ENWW Image defects 359
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