Troubleshooting
Service Manual 8-9
Voids or White Areas
Lateral Lines - Possible Repeating Defect
Evenly Repeating Defect
Example Possible Cause Sequence of Repair Actions
The paper is wet or moist. Use a fresh ream of dry paper and inspect the
storage area for the media.
Some parts of the image are blank
and/or wrinkled in appearance.
Replace the fuser.
Replace in the following order; imaging unit, toner
cartridge, transfer belt where contamination has
been found.
The defect appears only while duplex
printing.
Replace the duplex unit.
Example Possible Cause Sequence of Repair Actions
Check the distance of the repeating
defect to the corresponding unit.
Refer to the table in section 7.5 of this manual and
replace the corresponding unit if necessary.
Is the defect is within 1 ~ 2 mm? Replace the laser.
Is the defect in an irregular pattern? Replace the imaging unit.
Example Possible Cause Sequence of Repair Actions
Check the distance of the repeating
defect to the corresponding unit.
Refer to the table in section 7.5 of this manual and
replace the corresponding unit if necessary.
Is the defect is within 1 ~ 2 mm? Replace the laser.
Is the defect in an irregular pattern? Replace the imaging unit.