I am impressed with the print quality of these replacement laser cartridges. There are so many choices to pick from when purchasing; my previous choice proved to be not so good. I ordered these based on reviews and fast delivery date. They have performed great, easy drop in just like the factory replacements would be. I am happy with the print quality and color delivery from these replacements. And their engineer Harris is very professional and helpful. The price is almost too good to believe and I will purchase another set before this set runs out. Thanks for a great product.