Open the document you want to print
Select Print
Choose your printer
Open Printer Properties or Preferences
Find the option for Double-sided, Duplex, or Two-sided printing
Select the correct setting:
Long edge (common for portrait documents)
Short edge (common for landscape documents)
If prompted, confirm paper orientation (flip on long/short edge)
Set paper size and media type to match your printer settings
Select the number of copies
Click Print