Hi, can not help you with that little snitch that you have sorry, maybe doubl-check that the chip on the actual ink tank is in good order, use a magnifying glass. But it could still be a damaged chip even if you see nothing, but that is all the tips I know.
I went to your website. Ok, so it's not strictly photography but I have to say, if I may, that the excellent and impressive quality of the work was diminished by very bad backgrounds and overall interference with the selling/advertisingself promotion atmosphere. Photograph these wonderful pieces from either a perfectly level horizontal angle, or from a very low angle, and keep consistent with the angles and keep an eye on background, no interference, keep coloured background reasonably neutral. Trust me, the presentation of such talented work has been undermined on your website and I hope that you will accept my intentions.
Kindest Regards
Chris.