Why buy HP? Click here for details. Choose an HP inkjet print cartridge & you’re selecting a product that is the result of nearly 20 years inkjet printing expertise. This critical component is the key to performance within the HP printing system; printers, inks & paper. It is a highly sophisticated ink delivery system that has been engineered to extremely fine tolerances. The solution to all your printing needs HP manufactured inks offer you quality at a competitive price. Our Inks are tested rigorously to ensure optimal print quality, throughput & reliability at any time whether for your business or home office equipment. Our inks & toners are originals so superior quality is assured. They are engineered to produce the best results in the shortest time possible & everything from initial manufacturing to packaging has been designed for minimal environmental impact. Compatible Printers HP Officejet Pro K550/K5400/K8600 HP Officejet Pro L7480/L7580/L7590/L7680/L7780