As soon as I received it, I put them in my printer which is an HP OfficeJet 6950. It immediately displayed an error message on the screen that said: "The indicated cartridges have been blocked because they contain a chip that is not from HP. Replace them to continue printing." So they do not work as claimed to be compatible..

This ink with its own chip is absolutely compatible and automatically accepted by the HP 6950 printer

The Officejet 6950 recognized it without any problem... it works great!! The size is not the one in the photo, it is the xxl.

The office hp 6950 never recognized it. Finally, I went to a store in my city and they installed (removed?? I didn't understand) a program to accept compatible ones, so I bought ink from there. As soon as it finishes, I will try it again, maybe...

I have bought the same ink twice. The first time it worked perfectly fine! The next time, I had issues with the printer recognizing it.

The printer recognized it as non-authentic but worked without any issues. The print quality doesn't seem to be the same as the original (e.g. blurry edges on the fonts) without being fixed after alignment. So, for practical purposes, it is excellent with a cost of about 1/4 of the original. If someone wants high-quality prints, they might consider using genuine ink. I recently installed it and I don't know yet how many pages it can print.

Good compatible ink but the print quality is clearly worse than the genuine new HP inks. It leaves marks and clearly produces fewer pages. Good value for money but I would recommend the authentic inks if one can afford the cost.

Good compatible ink but the print quality is clearly worse than the genuine new HP inks. It leaves marks and clearly produces fewer pages. Good value for money but I would recommend the genuine inks if one can afford the cost.

Good compatible ink but the print quality is clearly worse than genuine new HP inks. It leaves marks and clearly produces fewer pages. Good value for money but I would recommend genuine inks if one can afford the cost.

Good compatible ink but the print quality is clearly worse than the genuine new HP inks. It leaves marks and clearly produces fewer pages. Good value for money but I would probably recommend the genuine inks if someone can afford the cost.

It works without any problem on the hp officejet 6950. The size is XL and not what the photo shows.

The Officejet AIO 6970 complained that it is not genuine but it prints just fine. The cartridge initially had a problem with the ventilation hole and was not supplying ink, but with a little pull, it fixed itself.