For 123 HP com setup for any of your HP printer, you have to unpack the printer, attach all the necessary cables, set your language preferences, and connect it to the wired or wireless connection. Once connected, the next step is to install the drivers and other essential software by opening 123.hp.com/setup, visiting Software & Downloads section, entering your specific printer’s model number. Once the printer drivers installed and your computer is connected to the network, you can begin printin