I do not put 5 stars for two reasons: - Check the box is a little loose in the package (well, it's just a box and it is not what I bought!) - Missing a cartridge! 50 it's not too serious, but still ... Otherwise, the cartridge itself is fulfilling its role. On this side, nothing wrong. And if I think, I will complete my review when I used the 48 others to tell you if it has all worked well: o)