I’ve always used Epson Printers with Linux - currently using an “all in one” XP series. The only problem that I’ve had is that the built-in scanner doesn’t work over wifi (works perfectly when connected via USB).
In the light of the warning in the article about the Epson ET series, I would recommend checking on Epson’s website for drivers before buying a Epson printer for Linux. Epson provide Linux drivers for many of their printers.
Official drivers from Epson may or may not be open source, so if that is important to you, check before you buy.