HP LaserJet 5000 Service Manual - Page 286

Table 7-22. Horizontal White Lines Possible Cause Action Lack of toner or faulty Redistribute the toner in the Toner Cartridge. If the Toner Cartridge. problem continues, replace the Toner Cartridge. Dirt in the laser path. Clean the laser path. (Remove the Laser Scanner Assembly and clean the lens.) Defective Fuser. Replace the Fuser Assembly. Dirty mirror in the Laser Scanner. Replace the Laser Scanner. Table 7-23. Light Print, Dark Print, or Fade Possible Cause Action Wrong toner density setting. From the Print Quality Menu on the Control Panel, adjust the toner density setting. Make sure EconoMode is off. Toner Cartridge is low. Replace the Toner Cartridge. Transfer Roller is defective. Replace the Transfer Roller. Paper does not meet printer specifications or is stored improperly. 1. Print a few more pages to see if the problem corrects itself. 2. Turn over the stack of paper in the tray. Also try rotating the paper 180°. 3. Check the paper (or other print media) type and quality. Replace the paper, and advise the customer to use the recommended paper and store it properly. EN Troubleshooting the Printing System 7-65