Set up your HP Inc. printer using 123.hp.com, HP’s official setup portal. Enter your printer model to download the correct HP Smart app or driver package, then install your printer over Wi-Fi, Ethernet, or USB on Windows, Mac, Android, or iPhone. The setup process also helps with scanner configuration, account registration, and first-time printing. It can resolve common setup issues such as printer not detected, offline status, connection failure, or missing driver installation during setup.