HP Color LaserJet Enterprise CP5525 Service Manual - Page 550

Problem Sample White spots appear in an image The back of the page is dirty. Vertical streaks or bands appear on the page. Vertical white lines appear in a particular color. Cause Solution Poor conductivity caused by dirt on the static eliminator. Clean the static eliminator. The primary transfer roller is Replace the ITB. deformed or has deteriorated. The secondary transfer roller is deformed or has deteriorated. Replace the secondary-transferroller. The secondary transfer roller is dirty. Replace the secondary transfer roller. The fuser inlet guide or separation guide is dirty. Clean the dirty parts. If the dirt does not come off, replace the guide. The pressure roller is dirty. Run the cleaning page several times. If the dirt does not come off, install a fuser cleaning kit. If the issue persists, replace the fuser. Scratches are present on the circumference of the photosensitive drum. Replace the print cartridge of the color that matches the defect. Scratches are present on the circumference of the fuser roller. Replace the fuser. Scratches are present on the circumference of the ITB. Replace the ITB. The ITB drive roller is deformed or has deteriorated. The ITB cleaning mechanism is malfunctioning. The laser beam window is dirty. Execute the Clean Laser Glass item in the Calibration/Cleaning submenu (in the Device Maintenance menu) If the error persists, manually clean the window and remove any foreign substances. Scratches are present on the circumference of the developing cylinder or photosensitive drum. Replace the affected print cartridge. If the problem persists, replace the affected print cartridge. The laser/scanner-unit mirror is dirty. Replace the laser/scanner assembly. 526 Chapter 3 Solve problems ENWW