From sharp lines to photo-quality images-HP 90 printing supplies get the job done right. Patented dye-based color and pigment-based black HP inks produce accurate lines and images. And HP Smart technology ensures optimum print quality and reliability and provides automatic alerts when a cartridge is low or out. With the new HP 90 Black Ink Cartridge for high-volume printing, HP now offers two sizes of each color. Fewer interruptions save time and increase productivity for an excellent value.