High yield black toner cartridge for use with xerox workcentre 6400s, workcentre 6400x, workcentre 6400xf. This is a OEM MONOCHROMATIC TONER XEROX brand Toner Cartridge (HI BLACK TONER) that works with the following printers / machines (WORKCENTRE 6400S, WORKCENTRE 6400X, WORKCENTRE 6400XF). Product Features: Cartridge Yield: High Capacity Compatible with: WorkCentre 6400, 6400/XFM, 6400S, 6400SFS, 6400X, 6400XF, 6400XM Duty Cycle: Up to 12000 pages ISO/IEC 19798 Printing Color: Black Printing Technology: Laser Product Description: Xerox - High Capacity - black - original - toner cartridge Product Type: Toner cartridge. HIGH YIELD BLACK TONER. WORKCENTRE 6400S, WORKCENTRE 6400X, WORKCENTRE 6400XF. OEM XEROX Brand.