HI-VISION Compatible Canon 128 Black Replacement Cartridge works with FAXPHONE L100, imageCLASS D550, MF4450, MF4570dn, MF4570dw Premium Quality Replacement Cartridge is made by ISO9001 Certified Factory to Meet OEM Standards 180 Days Money Back Guarantee 1 Year Manufacturer Warranty Against Product Defect Up to 2,100 Pages at 5% Coverage 1 Toner