Premium Quality C9362WN Black Inkjet Cartridge compatible with the HP DeskJet 5420, 5440, 5442, 5443, OfficeJet 6300, 6310 All-in-One, Photosmart 7850, C3100, C3140, C3150, C3180. The use of compatible supplies does not void your printer warranty. Product Detail Ninestartechonline.com