Toner for Laser Printer: Xerox Phaser 7800
From Amazon
Xerox Genuine Phaser 7800 Yellow High Capacity Toner Cartridge (17,200 Pages) - 106R01568
Choice Stationery Supplies
Think Alternative 106R01568RT Yellow Replacement Toner Cartridge (Replaces Xerox 106R01568) - 17200
Advantage Online
Original-106R01568