Xerox Phaser 6600, WorkCentre 6605 Standard Capacity - Black Toner Cartridge has been specifically designed and tested for our products. It ensures optimal print quality and the highest reliability during the printing process. You can count on it page after page. Original consumables from Xerox and Xerox systems are made for each other. Do not accept imitations. Compatible toners can cause failures in Xerox printers and lead to poor print quality and weak colors. With over 75 years of experience, original toner cartridges from Xerox are something you can rely on.