This ink is no longer made by HP so when its gone it will be gone forever. This Ink is compatible with these printers: Photosmart B8550, Photosmart B8500, Photosmart D5400, Photosmart D5468, Photosmart 7510, Photosmart Plus AIO B209a, Photosmart Premium e-ALL-in-One C310a, Photosmart eStation C510a, and Photosmart Premium Fax C410. HP 564XL (CN321W), High-Yield Black Ink Cartridge- Saves Time and Money With its high-yield design, the HP 564XL black ink cartridge can help you go longer between print cartridge replacements. It is designed specifically for high-volume output, so you can minimize project downtime. Plus, since it is made for HP printers, the cartridge installs in minutes without the use of special tools. Yields up to 800 pages Save 13% per page when you buy this HP 564XL High Yield Black Ink Cartridge instead of the standard cartridge-ideal for high-volume printing Fade-resistant color provides superior results and brilliant, true-to-life images that last for generations The unmatched reliability of original HP ink cartridges means consistent convenience and better value High-quality cartridges print everything the way you wanted and are perfect for everyday printing applications Blacker Blacks With the HP 564XL black ink cartridge, you'll be able to print the richest, deepest shades of black. It uses ink that resists fading, making it the perfect solution for photographs and other documents that will be around for generations. Even Ink Distribution If you need even color coverage, the HP 564XL black ink cartridge will deliver. It uses HP's sophisticated printing technology, so it creates even, unblemished coverage on all types of paper. When you install the cartridge in a compatible HP printer, you can rest assured it will work efficiently and produce reliable results. Get 3 times printing vs standard capacity ink cartridges.