Premium Remanufactured C6170A Blue Disposable Spot Color Print Cartridge fully compatible with the HP Color Copier 100, 110, 120, Deskjet 1000, 1100, 820, 850, 855, 870, Deskwriter 1600c, Digital Copier 110, 120, OfficeJet Pro 1150. The use of compatible supplies does not void your printer warranty.