HP LaserJet Enterprise 500 MFP M525 - Manual (Page 255)

3. Remove any visible lint or dust from each of
the feed rollers and the separation pad using
compressed air or a clean lint-free cloth
moistened with warm water.
NOTE: Lift up the roller assembly so you can
clean the second roller.
4. Close the document-feeder cover.
ENWW Improve scan quality 241