The Xerox Phaser 6300 laser toner cartridges from LD Products are 100% brand new compatible laser cartridges that are Guaranteed to meet or exceed the print quality of the OEM Xerox Phaser 6300 laser toner cartridges. Purchasing our Xerox Phaser 6300 cartridges is an excellent way to save money without sacrificing quality. Our Xerox Phaser 6300 laser toner cartridges have a 'Lifetime Guarantee'. The use of our compatible laser toner cartridges for the Xerox Phaser 6300 does not void your printer's warranty. OEM laser toner cartridges are also available for your Xerox Phaser 6300 printer.