The Imaging Drum Kit from Dell™ is specifically designed for use with Dell Colour Multifunction Printer C7765dn. The Imaging Drum Kit applies toner to the page. It offers a usable life of up to 164,000 (Black Page Yield) and 143,000 (Cyan/Magenta/Yellow Page Yield) page impressions. This product has been tested and validated on Dell systems. It is supported by Dell Technical Support when used with a Dell system.