The xerox phaser 5500 toner cartridge engineered specifically for unparalleled performance with the phaser 5500 printer yields an average of 30 000 pages at 5 area coverage this phaser 5500 toner cartridge uses patented emulsion aggregate ea toner technology for sharper image quality higher reliabilitylower service costs and faster warm up time so its always ready to print the cartridge monitors toner levels so youll know precisely when its time to reorder and xerox will recycle