To add a new printer first install the driver that came with the printer. If the printer did not come with a disk try plugging it in to see if the computer will recognize the printer. If the computer doesn't recognize the printer and take you through the set up wizard you will need to go to the printer manufacturer website and download the driver. Once the driver is installed the printer should work. If you specific details on a printer please let me know the make and model along with what operating system you are running.