HP LaserJet 1020 Plus Printer - Manual (Page 43)

4. After side one has printed, gather the printed pages, turn the printed side down, and straighten the
stack.
5. Place the stack back in the input tray. Side one should be facing down with the bottom edge feeding
into the printer first.
6. Click Continue to print side two.
ENWW Printing on both sides of the paper (manual two-sided printing) 33