To install an HP DeskJet 3700 series printer (such as model 3700, 3762, or 3772), especially for wireless setup, follow these steps:

1. **Put the printer in wireless setup mode:**
– Press and hold the **Wireless** button and the **Cancel** button simultaneously for about 3 seconds.
– The power button will start flashing, indicating the printer is in wireless setup mode[1][3].

2. **Download and install the HP Smart app:**
– On your computer, laptop, or smartphone, go to the App Store (iPhone) or Play Store (Android) and download the **HP Smart** app made by HP Inc.
– Install and open the app[1][2][3].

3. **Add the printer via HP Smart app:**
– In the HP Smart app, select **Add Printer** or **Add a Device**.
– The app will search for printers in wireless setup mode nearby; select your HP DeskJet 3700 series printer once it appears.
– Follow the app’s on-screen instructions to choose your Wi-Fi network and enter the Wi-Fi password.
– Complete the setup to connect the printer to your network[1][2].

4. **Alternative PC setup (Windows):**
– On your Windows PC, go to **Start Menu > Devices and Printers**.
– Click **Add a printer**, select your HP DeskJet 3700 printer from the list, and follow the prompts to finish installation and connect to Wi-Fi[1].

5. **Confirm Setup:**
– After setup, the printer’s power button should stop flashing and remain steady, indicating it’s connected.
– Print a test page to verify the installation.

This method works for both phone and computer setups and ensures your printer connects to your Wi-Fi network for wireless printing[1][2][3][4].

If you experience issues with the printer not showing up during setup, ensure the printer is indeed in wireless mode and restart your router or device. The HP Smart app also offers a “My printer is not listed” option to troubleshoot.

In summary, the key installation steps for the HP DeskJet 3700 printer are: enable wireless mode by pressing the Wireless + Cancel buttons, install and use the HP Smart app to add and connect the printer to your Wi-Fi network, and follow on-screen prompts to complete installation[1][2][3].