78
5 Troubleshooting
White dots appear in black
filled areas.
The paper used is not suitable. Load the correct type of paper.
Refer to
• “Usable Paper” (P. 41)
The paper is damp. Replace with paper from a new ream.
Refer to
• “3.2 Loading Paper” (P. 47)
The drum cartridge is defective or damaged. Replace with a new drum cartridge.
Refer to
• “Replacing the Drum Cartridge” (P. 90)
Printed image smudges when
rubbed with your finger.
The toner is not fixed on the
paper.
Paper is smeared with toner.
The paper is damp. Replace with paper from a new ream.
Refer to
• “3.2 Loading Paper” (P. 47)
The paper used is not suitable. Load the correct type of paper.
Refer to
• “Usable Paper” (P. 41)
The whole piece of paper is
printed black.
The drum cartridge is defective or damaged. Replace with a new drum cartridge.
Refer to
• “Replacing the Drum Cartridge” (P. 90)
This may be due to breakdown of high voltage power. Contact our Customer Support
Center or your dealers.
Nothing is printed.
Multiple sheets of paper are fed simultaneously. Fan the paper well and reload the
paper.
Refer to
• “3.2 Loading Paper” (P. 47)
The drum cartridge is defective or damaged. Replace with a new drum cartridge.
Refer to
• “Replacing the Drum Cartridge” (P. 90)
The sealing tape is still on the toner cartridge or the toner cartridge is not correctly
inserted into the printer. Insert the toner cartridge correctly.
Refer to
• “Replacing the Toner Cartridges” (P. 87)
Spots of missing text
This may be due to breakdown of high voltage power. Contact our Customer Support
Center or your dealers.
The paper is damp. Replace with paper from a new ream.
Refer to
• “3.2 Loading Paper” (P. 47)
The paper used is not suitable. Load the correct type of paper.
Refer to
• “Usable Paper” (P. 41)
Symptom
Reason/Action
