Epson EM-C7100 EP-C7000 Ink XL Yellow - C13T13X440. Who wants to spend time thinking about their printer? It should just work. We've developed our inks and printers to work in harmony, so that they'll do just that and give you consistent and reliable results without any fuss. That's because we invest in extensive research, high-tech manufacturing facilities and put our products through rigorous tests.