The chip is fully recognized by a 4200 IP printer and print quality, I did not see any difference from the original.
Short for my part I have made my choice, I will not ruin me with the original cartridges.
After a month of use, I return to my review because I have seen a very deteriorated print quality with whimsical colors, nothing to do with the original. And I've realized that the nozzles were drying. Where the Canon cartridges are perfectly reliable over time, with them, you have to clean the nozzles of the printer almost every day to retrieve original colors. It's a bit restrictive.
This cartridge pack is inadequate in my view for professional use.