Until unless you suggested to connect USB cable to the computer, please don’t connect it.
For more information about this driver you can read more from Epson official website. You need to install a driver to use on computer or mobiles. Also on MacOS 10.12 (MacOS Sierra), El Capitan, Yosemite, Mavericks, Mountain Lion, Lion, Snow Leopard, Leopard and Linux deb or rpm. The driver work on Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Vista, Windows XP. Epson ET-16500 driver is an application to control Epson ET-16500 ecoTank wireless wide format color all-in-one supertank printer, scanner, fax & ethernet.