This CISS worked fine for about 3 days. I assume it is no longer available due to issues. I installed it on my Epson wf 7710, made 2 prints, everything worked great. The next day I noticed something was wrong as my printouts had streaks, I checked my settings, the ink level in the tank was still full, I blew the ink back into the cartridges and was able to get another printout. The next day the lines reappeared and my pink stopped printing altogether. The pink was removed and then the yellow was no longer printed. That was the biggest problem and a total waste of time. I spent more time keeping the ink in the cartridges than actually printing anything. I wasn't a fan of the chip reset button placement either. You can't get a yellow or pink syringe to fill it without accidentally pulling out the chipboard. Luckily I knew how to fix it, but then what a problem. I've spent so much time and money on paper and ink to get this work right. Very upset and disappointed!