I wanted to like this product but it gave horrible printing results. Pages print, but the center of the page is smeared and uneven. I don't know why, but it installed correctly. The middle of my papers was barely legible. The app on your computer knows it's regular ink when you install it, but you're fine with using it. I ended up returning it and buying another generic brand that worked better. Maybe I got a bad pack but I wasn't happy with it.