Thanks for the additional information Ralph. I am sending you a replacement chip today, which I will test in our printer to make sure it works correctly before shipping.
Occasionally, this model cartridge doesn't have a perfect fit in the printer, which causes a read error (though, in my experience, this causes a "NO cartridge" message, and not the error you're getting). A few people have reported they folded a piece of typing paper and placed it under the cartridge as they locked it into the printer, or applied a few layers of masking tape to the bottom of the cart (behind the locking area), and this made the printer recognize the cartridge and be able to print. You can certainly try that, and if it resolves your issue, you will be back to printing, but a new chip is on the way in case it's not the cartridge fit, but the chip that's causing your error.
We are in the process of testing a new model cartridge, which we feel has a better fit in the printer, and is the most similar to Epson carts in regards to size/shape, for the best results.
Please let me know if you have questions or there's anything else I can help you with.
Best regards~ Dana