Toner cartridge is designed for use with Lexmark E230, E232, E232T, E234, E234N, E234TN, E240, E240N, E240T, E330, E332, E332N, E332TN, E340 and E342N. Lexmark Return Program Cartridges are sold at a discount, vs. the prices of regular cartridges, in exchange for the customer's agreement to use the cartridge only once and return it only to Lexmark for remanufacturing or recycling. Cartridge yields approximately 2,500 pages.