Steer clear of these cartridges! I ordered exactly the cartridge for my printer HP Desjet 3050 and they are not compatible. The printer rejects consistently. Now, one might argue that HP blöderweise intentionally is arranged such that cartridges used are not accepted by the printer, but the good is indeed now also nothing. The cheapest price is meaningless if the cartridges do not work!
I had been looking forward on the XXL-size, because my original cartridges are expensive and getting out quickly, But these cartridges do not work!