Lexmark Cyan Toner Cartridge, 1K pages - C2320C0. This original toner cartridge is part of the Lexmark Return Programme, which offers a discount in exchange for your agreement to use the cartridge only once and return it to Lexmark for remanufacturing or recycling. The patented cartridges are licensed for single use and will cease functioning after a fixed amount of toner is delivered. Some toner may remain in the cartridge when replacement is needed. Replacement cartridges without these restrictions are also available. Compatible with Lexmark C2325dw, C2425dw, C2535dw, MC2325adw, MC2425adw, MC2535adwe, MC2640adwe printers. Meets ISO/IEC 19752 standards for page yield.