Setting up your HP printer is simple with 123.hp.com. Begin by unboxing your printer and removing all protective materials. Plug it into a power source, turn it on, and install the ink cartridges. Load paper into the input tray. Next, visit 123.hp.com to download the correct driver and software for your printer model. Follow the on-screen instructions to complete the installation on your computer or mobile device. Connect your printer to Wi-Fi or via USB, then print a test page to confirm everything is working. Your HP printer is now ready for use.