The 4000-Page Cyan Toner Cartridge from Dell is designed to work only with the Dell Laser Printer 3100cn. This cartridge, when used in conjunction with the Black, Magenta and Yellow cartridges, can produce high-resolution color printouts with sharp images and text. It offers a yield of up to 4000 pages and supports Dell's Toner Management System for low toner detection and easy online ordering.