I bought 2 HP 75 XL Tricolor refilled ink cartridges from this company. Great price, quick delivery BUT, the printer showed "USED" and would not print properly. An original HP cartridge of this type weighs 46.5 grams new and 35 grams empty. These weighed 36.5 grams new. Looks like they added a few grams of ink and passed them off as full.