Fuji Xerox ApeosPort-VII C4421 User Manual page 423

Symptom
Dirt appears at equal
intervals.
Paper
Feed
Direction
White dots appear in black
filled areas.
Printed toner smudges
when rubbed with your
finger.
Toner is not fused.
The paper is soiled with
toner.
The entire paper area is
printed black.
The paper transport path may have smudges. Print a few pages to
remove the dirt.
The drum cartridge may be deteriorated or damaged. Replace the
drum cartridge with a new one.
Reference
 Refer to "Replacing Drum Cartridges" (P.394).
Check if the loaded paper is suitable.
Reference

Refer to "Loading Paper" (P.87).
The transfer output value is unsuitable for the loaded paper type.
Reference

Refer to "Adjust Image Transfer" (P.413).
The drum cartridge may be deteriorated or damaged. Replace the
drum cartridge with a new one.
Reference

Refer to "Replacing Drum Cartridges" (P.394).
The loaded paper may be damp. Replace the paper with a new one.
Reference

Refer to "Loading Paper" (P.87).
Check if the loaded paper is suitable.
Reference

Refer to "Loading Paper" (P.87).
The drum cartridge may be deteriorated or damaged. Replace the
drum cartridge with a new one.
Reference

Refer to "Replacing Drum Cartridges" (P.394).
High-voltage power supply may be malfunctioned. Contact our
Customer Support Center.
Image Quality Trouble
Remedy
423