HP LaserJet Enterprise 500 Service Manual - Page 538

Table 3-49 Image defects table (continued) Problem Sample The front of the page is dirty. Repetitive horizontal lines Pages have flecks of toner Pages have one or more skewed color planes (can appear on the right or left side of the page) Cause The photosensitive drum is dirty. The fuser roller or pressure roller is dirty. Solution Replace the print cartridge. Execute a Pressure roller clean mode. If the dirt does not come off, replace the fuser. NOTE: Cleaning the fuser with HP tough paper provides better results than with plain paper. You might need to execute the cleaning process several times to remove all contaminates on the fuser. See repetitive image defect ruler. Clean the indicated roller. If the contaminate does not come off, replace appropriate roller or assembly. Execute a cleaning page to clean the contaminate off the fuser. The cleaning page may need to be run several time to clean the fuser. Do not replace the fuser. NOTE: Cleaning the fuser with HP tough paper provides better results than with plain paper. You might need to execute the cleaning process several times to remove all contaminates on the fuser. Remove, and then reinstall the print cartridge associated with the defect. 502 Chapter 3 Solve problems ENWW