Xerox Phaser 7700 Black toner cartridge – 12000 pages based on 5% coverage, SKU#016-1947-00. Engineered specifically for unparalleled performance with the Xerox Phaser 7700 Color Printer, these toner cartridges guarantee brilliant print quality and superior reliability. These toner cartridges feature clean and simple loading and a lower unit cost alternative – leaving you with fewer hassles