I was reluctant to buy this for fear it would not work or ruin my printer. However, the printer has recognized the cartridge and I see no difference in quality to the original. HP estimates I can print around 800 pages with it, compared to 242 pages with the original cartridge that came with the printer when I bought it in January of this year. I got it today and if there is a difference over time I will post an update. Great quality, I paid $37 for a pack of 2 cartridges compared to $50 for just one cartridge from HP.