Expired ink for Epson 3800
This seems to be a big advantage to using Epson inks. The ink in Epson carts is enclosed in airtight bags so the ink isn't exposed to air. Not only do the carts last well beyond the expiration date, they last forever (almost) once in the printer. I still have a couple of carts that have been in my 3880 for over 3 years, still working perfectly.