Overview The HP 80 Ink Cartridges are designed to work with HP 80 Printheads and Printhead Cleaners as part of a modular ink system. HP 80 Ink Cartridges are formulated to provide professional results that are always clear always sharp. Productivity technical users who require fast unattended printing of professional-quality engineering line drawings renderings maps and presentations Why buy original HP ink? Get up to twice as many pages vs. with refills¹ Ensure that your printing is right the first time and every time. ¹Based on a Buyers Laboratory Inc. 2014 study commissioned by HP for the on-average performance of cartridges refilled and remanufactured by leading refill service providers compared to Original HP ink cartridges (60XL Black 60XL Color 61XL Black 61XL Color 74XL Black 75XL Color 564XL Black 564XL Cyan 564XL Magenta 564XL Yellow 950XL Black 951XL Cyan 951 XL Magenta and 951XL Yellow ) sold in North America; http://www.buyerslab.com/products/samples/HP-Inkjet-Cartridges-vs-Refilled-Cartridges.pdf