1. Connect Your HP printer and then open your hp123.com website using your phone 2. Look up the model and the name of the printer you'd like to connect with 3. Connect the printer to your phone, then begin setting up It is possible to connect HP Printer to MAC through the 123 HP setup 1. Install the printer driver first onto your MAC 2. Visit the 123.hp.com/setup website into the MAC page for setup, then reset your printer via the Apple menu 3. Input your Wi-Fi credentials Select the your system options from the menu, then choose your printer or fax option.