Purchased these ink tanks and ink a while back so I would have them when I ran out. Just tried to use them. The printer displays that they are NOT Epson inks and will not work. I opened a trouble ticket with Cisinks.com. After I sent them a picture of the printer model and a picture of the mailing label that the inks came in, their response to my problem was:
"Thank you for providing the requested information. It looks like your order was from 2017. The average life of the refillable cartridges is about 1.5 - 2 years as the chips will eventually stop working. You will have to replace the cartridges as the current ones will no longer work."
Keep in mind that I have never refilled them and I just tried to use them. This is apparently how they make money. Tell the customer to throw away a product that they just started to try to use and have them buy replacements.