How do you clean the paper path for HP LaserJet 3015, 3020, 3030, and 3380 all-in-one devices?

A.
With the device in Cleaning Mode, feed an 8.5 X 11 inch piece of stock paper once through the paper
path.

B.
With the device in Cleaning Mode, feed an 8.5 X 11 inch piece of rough paper though the paper path two
or three times.

C.
With the device in Cleaning Mode, feed a transparency once through the paper path.

D.
With the device in Cleaning Mode, open the device and wipe the feed rollers with a soft, damp, lint-free
cloth.