70 5 Troubleshooting5.3 Problems With the Print QualityWhen the print quality is poor, select the closest symptom from the following table to rectifythe problem.If the print quality does not improve after carrying out the appropriate action, contact ourCustomer Support Center or your dealers.Symptom Reason/ActionFaded printouts The paper is outside the recommended specification range. Replace the media with arecommend size and type, and confirm that your print driver settings are correct.Refer to• “3.1 About Paper” (P. 36)The paper is damp. Replace the paper.Refer to• “3.1 About Paper” (P. 36)The drum cartridge or transfer roll cartridge is old or damaged. Replace the drumcartridge or transfer roll cartridge.Refer to• “Replacing the Drum Cartridge” (P. 81)• “Replacing the Transfer Roll Cartridge” (P. 84)The high-voltage supply is defective. Contact our Customer Support Center or yourdealers for assistance.Stray black dots or white areas(drop outs)The paper is outside the recommended specification range. Replace the paper with arecommend size and type, and confirm that your print driver settings are correct.Refer to• “3.1 About Paper” (P. 36)The drum cartridge or transfer roll cartridge is old or damaged. Replace the drumcartridge or transfer roll cartridge.Refer to• “Replacing the Drum Cartridge” (P. 81)• “Replacing the Transfer Roll Cartridge” (P. 84)Vertical black or color streaks The drum cartridge, transfer roll cartridge, or fuser unit is old or damaged. Check thecondition of the drum cartridge, transfer roll cartridge and fuser unit, and replace asnecessary. For information about replacing of the fuser unit, contact our CustomerSupport Center or your dealers.Refer to• “Replacing the Drum Cartridge” (P. 81)• “Replacing the Transfer Roll Cartridge” (P. 84)Recurring smudges Dirt in the paper path. Print several blank sheets.The drum cartridge, transfer roll cartridge, or fuser unit is old or damaged. Check thecondition of the drum cartridge, transfer roll cartridge and fuser unit, and replace asnecessary. For information about replacing of the fuser unit, contact our CustomerSupport Center or your dealers.Refer to• “Replacing the Drum Cartridge” (P. 81)• “Replacing the Transfer Roll Cartridge” (P. 84)