To connect your HP 123 printer to Wi-Fi, start by ensuring your printer is powered on and close to your Wi-Fi router. Access the printer's control panel and select the wireless or Wi-Fi setup option. Follow the on-screen instructions to choose your network and enter the Wi-Fi password. Once connected, download the HP Smart app or visit 123.hp.com/setup to install the necessary drivers on your device. Complete the setup by linking the printer to your computer or smart phone. This process ensures seamless printing and efficient wireless operation, making your HP printer ready for all your printing needs.