I use refillable carts from Cobra. No problem there as long as I agree I understand that the carts are not "approved" after installing a new one, or in my case, refilling one. My problem, really more of an annoyance is the arbitrary low ink warning that these, and other, printers calculate rather than actually sense.
Are there any tricks to shutting these off? The built-in sensors will only reset upon installing a new cart or refilling after the printer actually shuts down mid-print when it determines that it may now actually be empty. This feature, by the way, is my biggest complaint as it scraps that print. My last WF1100 also stopped mid print, but then continued where it left off after the printer sensed that the cart was replaced.