Otherwise, the article states to have your printer connected and check for the update in the App Store: macOS Sierra: Update or change printer software
If your printer is using AirPrint, or you have the updated file from Epson, the article will assist you. Please check this article for the way to update the software. This article does in fact show drivers are available in High Sierra for your model of printer: Printer and scanner software for macOS High Sierra, Sierra, El Capitan, Yosemite, and Mavericks Thanks for visiting the Apple Support Communities and asking about the printer driver for your Epson Stylus Photo PX710W printer.