Open System Settings
Click Printers & Scanners
Click Add Printer, Scanner, or Fax
Select your printer from the list
Click Add
Wait for the printer to install
Print a test page
If the printer does not appear, make sure it is powered on and connected to the same Wi-Fi network as your MacBook
If needed, connect the printer with a USB cable
If prompted, download and install the printer software or driver
Remove and re-add the printer if it still does not work