HP 2 - Manual (Page 35)

3. Select Print on Both Sides .
4. Select a binding option in the Booklet Layout is drop-down list:
❍
Right Edge Binding: Places the binding on the right side of the booklet.
❍
Left Edge Binding: Places the binding on the left side of the booklet.
5. Do one of the following:
❍
To leave every other page of the booklet blank, select Print On One Side .
❍
To print on all pages in the booklet, leave Print On One Side unchecked.