Sharp AR-C360P Printing Manual page 31

For portrait (tall) page layout the usual choice is [Long Edge].
For landscape (wide) page layout the usual choice is [Short
Edge].
Choosing [None] turns off duplex printing and your document
will be printed single-sided.
If you have a duplex unit installed, but do not have the [2-sided
printing] option on the [Setup] tab, check that the Duplex option is
enabled in the driver. (See "Setting the driver device options" on
page 9.)
Sharp AR-C360P Printing Guide
Finishing options> 31