HP Deskjet 5850 Color Inkjet Printer - Manual (Page 133)

3. Select Print on Both Sides .
4. Select Automatic .
5. Select Preserve Layout .
6. Select a binding option in the Booklet Layout is drop-down list:
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Right Edge Binding: Places the binding on the right side of the booklet.
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Left Edge Binding: Places the binding on the left side of the booklet.
7. Do one of the following: