This is a compatible Xerox 106R03479 XL yellow ink cartridge which has been designed to work perfectly with your Xerox Phaser printer. Each cartridge is updated with the latest chips and guaranteed to work in your printer. Printing approx. 2,400 pages @ 5% average coverage. Quick and easy to install, all compatible 106R03479 ink cartridges are ready to go out the packet for convenience. Phaser 6510,Phaser 6510DN, Phaser 6510N,Workcentre 6515,Workcentre 6515DN, Workcentre 6515DNI, Workcentre 6515DNW, Workcentre 6515N,Workcentre 6515NW