Perfect Compatibility for Xerox 6510/6515. Designed specifically for Xerox Phaser 6510, 6510n, 6510dn, 6510dni, 6510dnm and WorkCentre 6515, 6515n, 6515dn, 6515dni, 6515dnm printers. Page Yield Black: Extra High Capacity, producing up to 5500 pages.