How do I change from a Wi-Fi connection to a wired network connection?

See below.

Changing a Wi-Fi Connection to a Wired Network Connection

If you have already connected your product to your computer wirelessly, you can change to a wired network connection if necessary.
1. Disable your product's Wi-Fi features.
2. Connect one end of an Ethernet network cable to the product's LAN port.
3. Connect the other end to any available LAN port on your router or access point.
4. Uninstall your product software.
5. Download and install your product software from the Epson website.
6. Follow the on-screen instructions to install the software.
7. When you see the Select Your Connection screen, select Wired network connection.
8. If you see a Select Setup Option screen, select Set up printer for the first time.
9. Continue following the rest of the on-screen instructions.
Related tasks
Disabling Wi-Fi Features