Premium C6578DN (HP 78) Color Inkjet Cartridge fully compatible with the HP Color Copier 180, 190, 280, 290, DeskJet 1180C, 1220, 3810, 3816, 3820, 3822, 6122, 920, 9300, 930c, 932c, 935c, 940, 950c, 952c, 955c, 959c, 960, 970, 980, 990, 995. The use of compatible supplies does not void your printer warranty.