Xerox Color 500 Series CRU K (Black Drum Cartridge)Designed to keep your Xerox color printing running at peak performance, the Xerox Color 500 Series CRU K (Black Drum Cartridge) delivers dependable, high quality imaging for Xerox Color 560 and 570 printers. This CRU K replacement is engineered by Xerox to maintain consistent black performance across the life of the drum, ensuring sharp text, smooth grayscale transitions, and precise line definition for professional documents. With a focus on