With a yield of 4,000 copies at 5 percent coverage, the 6R881 (6R891) toner cartridge is perfect for your printing business. Featuring outstanding reliability, this fax/copier Cartridge offers excellent quality prints. This fax/copier Cartridge renders razor sharp black prints with impeccable clarity and detail, making it possible to store them for a longer period of time. The 6R881 (6R891) toner cartridge is compatible with the Xerox XC820, XC830, XC865, XC1020, XC1040, XC1044, XC1045, ...