HP 81 dye ink cartridges achieve superb, color-rich images on a wide variety of large format media. Patented, dye-based inks are designed together with HP DesignJet printers to ensure uncompromising print quality, performance & reliability. Designed for use with HP DesignJet 5000, 5000PS, 5500, 5500PS. HP 81 dye ink cartridge technology achieves smooth color transitions. Ink formulations support instant dry time to increase productivity & facilitate immediate lamination. A modular ink delivery system enables individual replacement of 680 ml. ink cartridges. Smart printing system technology provides alerts when ink is low & facilitates on-line ordering. Simple installation & reliable operation further enhance productivity & cost-effectiveness. One set of 6 ink cartridges can print up to 1000 D / A1 sized color graphic prints on coated media in productivity mode. More from the Manufacturer