For HP Deskjet 5550, 5551, Photosmart 7150, 7350, 7550, Officejets 6110. OEM Hewlett Packard HP C6656A, C6656AN, #56 Black Ink Cartridge. The HP 56 black inkjet cartridge provides laser-quality black text for home users. HP printing supplies and printers are designed together to work together for crisp, sharp output everytime. features: crisp, sharp, laser-quality fade-resistent black text from pigment-based black ink reliable results from HP brand easy to use, simple to install specifications ink volume: 19 ml |