HP LaserJet 1300 - Manual (Page 51)

ENWW Printing booklets 43
7 Gather the printed pages, turn the printed side down, and straighten the stack of paper.
8 Place the pages from side one back in the input tray. Side one should be facing down with the
bottom edge feeding into the printer first.
Click OK (on screen), and wait for side two to print.
9 Fold and staple the pages.