Price excellent but useless ...

These cartridges were delivered very quickly, this is what is my first star.
Their price is unbeatable = second star.
But we must remember to do these cartridges as color prints. Indeed the color rendering for printing is very far from the color print files. While most impressions (office printer) does provide that a appercu color files, these cartridges offer totally random colors (to believe we invert the position of the ink on the printer). This is enough for printing text file, but not to print illustrations and photos. To print pictures it's best to return to the HP cartridges.
Moreover, half the time, these cartridges are not recognized by the printer (I use a printer "HP Photosmart Premium"). So half of the cartridges are put in the trash. The worst being the black cartridge (one cartridge of 4 worked).