HP 81 dye ink cartridge technology achieves smooth color transitions. Ink formulations support instant dry time to increase productivity and facilitate immediate lamination. A modular ink delivery system enables individual replacement of 680 ml ink cartridges. Simple installation and reliable operation further enhance productivity and cost-effectiveness. New 3-Ink Multipacks offer significant savings and convenience in addition to value pack bundles of ink cartridge, printhead and printhead cleaner. Designed for use with Designjet 5000/5500 Series printers.