We can guide you properly, if you want to set up an HP printer using 123.hp.com/setup. First of all, you need to enter your model number of your HP printer in the displaying box of 123.hp.com/setup. After that, you have to complete displaying instructions in the right ways. During the process, if you get stuck in the middle of the process, you can take full and proper technical guidance of setting up an HP printer in simple ways.