HP LaserJet Pro 4001dw Monochrome Wireless Printer - Manual (Page 86)

12. Close the front door.
13. Ensure the type and quality of the paper being used meets the HP specifications for the printer.
14. If the error persists, clean the tray 2 pickup and feed rollers.
NOTE: A SFP printer is shown in this section. However, the procedure is correct for all printer
models.
a. Remove tray 2 and locate the paper tray rollers.
b. Clean the rollers by gently wiping them with a damp, lint-free cloth.
c. If needed for better access to the rollers, carefully rotate the printer backward.
CAUTION: To avoid damage to the rear cassette cover, keep it in the closed position
13.03 jam error tray 2 77