In addition to the other wonderful traits Xerox products are known for, the 106R03923 black toner cartridge also boasts an incredible page yield. The high 16,900 estimated page yield of the extra high capacity Xerox 106R03923, makes running the VersaLink C600 series of colour laser printers surprisingly economical.A low printing cost is not the only noteworthy trait of the Xerox 106R03923 toner cartridge, it also contains a high quality black toner powder that gives smooth, beautiful prints. Xerox have such faith in the genuine 106R03923 toner cartridge that they offer a warranty for the cartridge directly.