The Sharp BP-DU70SA is a photo-conductive imaging drum unit designed for use in high-volume color laser multifunctional printers. This universal component serves as the primary imaging surface for all four color slots, meaning the same part number is used for black, cyan, magenta, and yellow installations. Engineered for longevity, the unit provides a substantial print yield of 250,000 pages for black documents and 186,000 pages for color prints. It is compatible with a wide range of professional office equipment, including the BP-50C and BP-51C series (models 26, 31, 36, and 45), as well as the BP-70C and BP-71C series (models 31, 36, and 45). This multipack ensures you have the necessary drums to maintain consistent print quality across all colors in your device.