How to add a printer:
Apple Menu (top left) > System Preferences
Click Printers & Scanners
Your System & Preference may look like this
or like this.
Click on the "+" under the list of printers.
Click the printer icon.
Click on the printer you want to add.
Click the Add button.
Your screen may look like this:
Scroll down on the right until you see the Add Printer, Scanner or Fax . . . button and click on it.