The Lexmark Extra High Yield Non-Return Program Toner Cartridge, part number E462U21G, is a black toner cartridge designed for business environments requiring high-volume printing. This cartridge offers an 18,000-page yield, making it suitable for organizations aiming to reduce the frequency of toner replacements and manage operational costs associated with printing supplies. It is intended for IT departments and procurement managers seeking a reliable toner solution for compatible Lexmark printers. The non-return program designation indicates a specific purchasing agreement, typically offering a lower upfront cost in exchange for agreeing to return the empty cartridge to Lexmark for recycling.