**123hp** primarily refers to the official website and service platform for **HP printer setup, installation, and troubleshooting** accessible at **123.hp.com**. It is the dedicated site where users can download printer drivers, access installation guides, and find troubleshooting help for HP printers[1].

Key points about 123hp include:

– **Setup and Drivers:** Users go to 123.hp.com to select their printer model, download the correct drivers and software, and follow step-by-step instructions to install the printer on a computer or device[1].

– **Features:** After setup, users can connect their HP printers to wireless routers, enabling printing, scanning, copying, faxing, mobile, cloud, and AirPrint functionalities[1].

– **Security Note:** Several fraudulent or fake websites mimic 123hp.com. Only use the official HP site (123.hp.com) to download software and avoid sites that ask for payment or remote access. Official HP sites display the HP copyright logo at the bottom of the page[3].

– **Mobile App:** HP Smart is the official app supporting HP printer control through mobile devices. It provides additional features like mobile scanning, remote printing, and supply ordering[4].

– **User Issues:** Some users have reported connectivity issues or problems with the 123hp setup app, sometimes requiring alternative setup methods such as system preferences on a PC[5].

In summary, **123hp** is the official HP portal and resource hub for HP printer users to install drivers, set up printers, and troubleshoot issues securely and efficiently. Avoid unofficial lookalike sites to prevent scams or malware risks[1][3].