Already as inks for inkjet printers are expensive, especially if manufacturers but increasingly they are not stable over time, why buy them? For my part, yellow has turned green after a few weeks. Certainly, I do not print too often but I have never met a similar problem with other brands. Now, I buy compatible inks, less expensive, not so good, however, and above all, I invested in a black and white laser printer, the cost of use is much more interesting.