Xerox Phaser 3330, WorkCentre 3300 Series High Capacity Toner Cartridge Black (8500 pages) - 106R03622 has been specifically designed and tested for our products. It ensures optimal print quality and the highest reliability during the printing process. You can rely on it page after page. Original supplies 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 trust.