a) On your Mac, if the printer is on the network, choose Apple menu > System Settings, then click Printers & Scanners in the sidebar. (You may have to scroll down.)
b) Add the printer to your list of available printers: Click the Add Printer, Scanner or Fax button on the right. A dialogue appears listing printers on your local network. It may take a minute or two for your printer to appear.
c) If your printer still doesn’t appear in the list, try adding the printer by its IP address.