Hmmm... this is unusual. After reviewing your order history, I see you recently purchased 4800 replacement chips and a chip resetter, and years ago bought a set of ConeColor inks, but I don't see that you bought the refillable carts from us (unless they were possibly purchased under a different account?). Have you replaced the chips on the LK and LC carts yet? Have you shut down the printer, then turn back on to refresh?
Chips are fragile, and can wear out over time, or get shorted out from static/electric shock, so we recommend everyone have a set of replacement chips on hand to be able to quickly replace chips when needed, to resume printing, without down time of waiting for new chips to arrive in the mail.
Please let me know so I can try to help you past this and back to happily printing.
Best regards~ Dana