Toner Refill Store's premium compatible Xerox Phaser color toner cartridges contain brand new parts and are 100% guaranteed to meet or exceed your expectations and surpass the print quality of the OEM (Original Equipment Manufacturer) Xerox Phaser 6300B. Our Xerox Phaser 6300B color toner cartridges are made from the highest quality materials and are manufactured in an ISO-9001 certified factory. Toner Refill Store carries the black, cyan, magenta, and yellow toner cartridges. Toner Refill Store also carries many toner refill kits in combo packs for increased savings! Our toner refill kits come with smart chips which will reset your 'low toner' message and allow you to keep printing worry free! The reset will also help you keep track of page count. Our Xerox Phaser 6300B high yield laser toner cartridges have a 'One Year 100% Satisfaction Guarantee'. The use of our premium compatible Xerox Phaser 6300B laser toner cartridges does not void your printer's warranty.