To set up your **HP DeskJet 2700** printer using the official HP site (123.hp.com), follow these general steps:

1. **Go to 123.hp.com:** This is HP’s official setup website for printers. Here, you can download the necessary software and drivers to install your DeskJet 2700 printer[2][3][4].

2. **Download and install the HP Smart app:** For the fastest and easiest setup, HP recommends installing the HP Smart app on your mobile device, Windows, or macOS computer. The app guides you through printer setup including Wi-Fi configuration[2][3][4].

3. **Power on your printer:** Make sure your DeskJet 2700 is turned on and follow the prompts in HP Smart to connect the printer to your Wi-Fi network.

4. **Print from any device on your Wi-Fi:** To allow anyone on your Wi-Fi network to print without complex setup, each user still needs the printer drivers/software installed on their device. This enables devices connected to the same Wi-Fi to print to your DeskJet 2700 without visiting 123.hp.com repeatedly[1].

If you want detailed step-by-step instructions specific to the DeskJet 2700 model, HP provides a setup guide here: https://support.hp.com/au-en/printer-setup/hp-deskjet-2700-all-in-one-printer-series/29378157[1].

In summary:
– Visit 123.hp.com and download HP Smart.
– Power on the DeskJet 2700 and follow the app instructions to connect to Wi-Fi.
– Install drivers/software on other computers/devices for shared printing over Wi-Fi without extra hassle.

If you encounter any OS compatibility issues, HP Smart is available for mobile devices and major desktop platforms[2][3][4].