To set up your HP printer using 123.hp.com, follow these steps:
1. **Power on your printer** and make sure it is ready for setup.
2. On the device (computer, smartphone, or tablet) you want to connect the printer to, open an internet browser and go to **123.hp.com**.
3. Install the **HP Smart app** if prompted. It is available for mobile devices, Windows, and macOS and provides the fastest and easiest setup process.
4. Follow the on-screen instructions to **complete the printer setup**, including connecting the printer to your Wi-Fi network if needed.
5. If your operating system is not supported directly via the website, using the HP Smart app on a mobile device is recommended.
If you encounter any issues, you can visit the **HP Support** section for additional help specific to your country or language[1][2].