09/2012 purchased beginning, these cartridges are well recognized by the printer and even if I only have one occasional use, whenever I need it, they meet this ... and this is the bulk! Although this is a detail, I still noticed a difference compared to HP: their symbol and fill level no longer appears on the LCD home screen of the printer. Given their large capacity, the price at which they are offered and the print quality they provide, so I can only recommend them.