Lexmark Z51 User Manual page 41

Short edge binding
Short edge binding lets you bind (attach) all your sheets of paper
along the short edge of the page (the top edge of a portrait-printed
page and the left edge of a landscape-printed page). For example, the
pages in your Getting Started booklet are landscape-printed using a
short edge binding.
The following illustration shows a short edge binding:
Portrait
Back of sheet
Front of
next sheet
Landscape
Back of sheet Front of next sheet
Printing beyond the basics
37