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