Samsung SCX-5115 - Manual (Page 83)

P RINTING 5.10
Duplex Printing
Choose the Duplex option from the Output tab to print the
document on both sides of the paper.
Duplex printing is available only when you select Plain Paper for
Paper Type in the Paper tab.
Choosing Long Edge lets you have the binding orientation
along the long edge of the paper as in a magazine.
Choosing Short Edge lets you have the binding
orientation along the short edge of the paper as in a
calendar.
1
1