Well, it didn't work on neither of my printers, tried everything, putting them all, plug on and off the printer for an extended time, no matter what they were always non recognizable. The seller did contact me and it was quick, seems that my printers are "picky" with the ink I put on them, ended up buying OEM on a local shop (but they were more expensive than these) and they worked just fine. Asked for a refund for amazon and got it quickly. The two stars is, one for getting my money back, the other for the quick reply of the seller, otherwise it would be 0 if I could because they simply didn't work at all on neither of my printers. The chip was never recognized. If they did work I would give 5 stars all the way, because of the fast seller response and cheaper ink.