Our remanufactured laser toner for Lexmark MS421dw has up to 60% new parts including wiper blades, and other internal parts. Remanufactured toners for Lexmark MS421dw are manufactured to meet the same original specifications and performance standards as the Lexmark OEM laser toner cartridges. Our remanufactured laser cartridge is designed for use with Lexmark MS421dw printers. We offer a 100% Quality & Satisfaction Guarantee on Lexmark MS421dw laser toner cartridges and supplies. OEM (Original Equipment Manufacturer) laser toner cartridges are also available for your Lexmark MS421dw printer.