Make a two-sided copy. (Duplex)

Print on both sides of the paper with an HP printer

Double-Sided Printing

How to Print Double Sided on Mac

Print two-sided postcards in Publisher - Microsoft Support

Two-sided printing (duplexing)

Double-sided Printing in Windows 10, Information Technology

What is Duplex Printing?, Printer Ink Cartridges

How to print double-sided - it's easier than you would think – Castle Ink

Print on both sides of the paper (2-sided/duplex Printing).