HP Color LaserJet Professional CP5220 Service Manual - Page 254
Problem, Sample, Cause, Solution, Cleaning Mode, Service, Cleaning, mode 2, Secondary, service
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Problem Sample Vertical white lines appear in a particular color. Vertical white lines appear in all colors. Horizontal lines appear on the page. A horizontal white line appears on the page. Cause Solution The laser beam window is dirty. Use the Cleaning Mode option in the Service menu to process the cleaning page. If this does not solve the problem, use the Cleaning mode 2 option in the Secondary service menu to move the print cartridges to the engaged position so that you can access the glass strip on the bottom of the laser scanner for cleaning. Scratches are present on the circumference of the developing cylinder or photosensitive drum. White scratch down the page could mean the scanner glass needs to be cleaned. Remove the affected print cartridge and re-install. The PGCs will clean the glass. If the problem persists, replace the affected print cartridge. The laser scanner-unit mirror is dirty. Replace the laser scanner assembly. See Laser scanner assembly on page 105. Horizontal scratches on the fuser roller. Replace the fuser. See Fuser on page 79. Scratches are present on the circumference of the ITB. White scratch down the page could mean the scanner glass needs to be cleaned. Remove the affected print cartridge and re-install. The PGCs will clean the glass. Replace the ITB. See Intermediate transfer belt (ITB) on page 87. Repetitive horizontal lines appear. Use the repetitive defects ruler to identify the dirty roller. Clean the roller. If the roller cannot be cleaned, replace the fuser. See Fuser on page 79. Horizontal scratches are Replace the print cartridge of the present on the photosensitive color that matches the defect. drum. Horizontal scratches are present on the fuser roller. Replace the fuser. See Fuser on page 79. Repetitive horizontal white lines appear. Use the repetitive defects ruler to identify the dirty roller. Clean the roller. If the roller cannot be cleaned, replace the roller. Horizontal scratches are Replace the print cartridge of the present on the photosensitive color that matches the defect. drum. Scratches are present on the Replace the ITB. See Intermediate circumference of the ITB. transfer belt (ITB) on page 87. 242 Chapter 3 Solve problems ENWW