Lexmark X940E User Manual page 54

Size
Envelopes (any size)
SEF—The paper is loaded in the short edge orientation. The short edge of the paper enters the printer first.
Bi fold—Each page is individually folded and stacked separately.
Booklet fold—A multiple-page job is folded along the center into a single booklet.
Saddle staple—A booklet-fold print job is stapled along the center fold.
Bi fold
X
Booklet fold
X
54
Saddle staple
X