The High Capacity Black Toner Cartridge from Dell™ is designed to work with the Dell Laser Printer 1720/1720dn. It produces high resolution printouts with impressively sharp images and text. This cartridge features a capacity of up to 6000 pages. The cartridge also supports Dell's Toner Management System for low toner detection and easy online ordering. With our environmentally friendly 'Use & Return' recycling option you receive a free, easy return label in each 'Use & Return' recycling box. This product has been tested and validated on Dell systems. It is supported by Dell Technical Support when used with a Dell system.