Fujitsu ApeosPrint C4030 Reference Manual page 158

Symptom
Output is blank.
Output is partially
blanked-out. White
streaks or color streaks
appear on output.
White patches appear on
output.
Images are partially
blanked-out.
Toner is scattered around
images.
Images are bluish.
Text is smeared.
158
8 Troubleshooting
Multiple sheets were fed at once. Fan the paper well and reload it in
the tray.
A drum cartridge is damaged or has deteriorated. Depending on its
condition, the drum cartridge may need replacement. Contact your
local representative.
There may be something wrong with the high-voltage power supply.
Contact your local representative.
The paper is not appropriate for the machine. Load appropriate paper.
The paper is damp. Replace the paper.
The LED printheads inside the machine may be dirty.
Clean the LED printheads.
No toner may be left in the toner cartridge.
Confirm the remaining toner quantity, and replace the toner cartridge
with a new one.
A drum cartridge is not installed correctly.
Install the drum cartridge correctly.
A drum cartridge or the fusing unit is damaged or has deteriorated.
Depending on its condition, the drum cartridge or fusing unit may
need replacement. Contact your local representative.
A developing unit has deteriorated. If it is not improved even after
cleaning the toner, replace a developing unit with new one. Contact
your local representative.
Change the paper type setting and try printing again.
Adjust the image transfer in
Quality] > [Adjust Image Transfer]. If white patches appear, or output
or images are partially blanked-out, lower the image transfer vale.
If toner is scattered, raise the image transfer vale.
The paper is not appropriate for the machine. Load appropriate paper.
The paper is damp. Replace the paper.
Cause/Remedy
> [Device] > [Maintenance] > [Image