This is a new compatible Black Toner Cartridge for the Xerox WorkCentre 4118 & FaxCentre 2218 printers. It is designed to replace Xerox 006R01278 toner cartridges. MTI © toner cartridges are engineered to exceed industry standards of high yield and exceptional quality, and guaranteed to perform with Xerox Printers. All our products are factory-tested and ISO approved. We offer an exclusive 30-day customer satisfaction guarantee and 1-year warranty. Our dedicated customer care staff is available 9 a.m. to 7 p.m, Monday through Saturday, to answer any questions and provide technical support.