HP LaserJet P2055dn - Manual (Page 108)

3. Inside the empty tray slot, locate the pickup roller on the top side, near the front of the product.
4. Dab a lint-free cloth in water, and then scrub the roller as you rotate it toward the back of the product.
NOTE: Do not touch the surface of the roller with bare fingers.
5. Using a dry, lint-free cloth, wipe the pickup roller to remove loosened dirt.
6. Allow the pickup roller to dry completely.
7. Replace Tray 2.
96 Chapter 9 Manage and maintain the product ENWW