If you’re not able to add your printer to the Mac device, you’ll have to perform certain steps. And those steps have been mentioned here. First, make sure that the printer cable is firmly connected. Then make sure that your Mac and the printer are on the same network. If the network has multiple printers, then check your printer. Also, make sure that the Mac has macOS 10.5 or later installed. Hopefully, these steps will help you solve your printer problem and questions like why can’t I add a printer to my mac without much hustle.