The HP No. 78 Tri-Color Inkjet Print Cartridge (19 ml) has been introduced for occasional color printing, featuring outstanding plain-paper image quality as well as photo-image quality on special media, and the best combination of speed and print quality in any print mode. It combines speed and print quality for uncompromised output in any mode and on a wide variety of HP specialty media and also plain paper. It features same printhead design and quality plus genuine HP engineered ink formulation as in the 38 ml cartridges.¤¤Each HP inkjet print cartridge consists of an integrated printhead and ink supply; designed for easy snap-out/drop-in for clean, fast replacement. The result is a new printhead and fresh ink every time the print cartridge is exchanged for maximum print quality and reliability.