The Lexmark T420 print cartridges are specifically designed to assure optimal print quality with crisp dark output from first print to last. Lexmark T420 print cartridges work only with T420 printers and are not compatible with any other Lexmark printers. Cartridges designed for other Lexmark products will not work with T420. Average Cartridge Yield 10 000 standard pages. Declared yield value in accordance with ISO/IEC 19752nbsp;Toner cartridge - Black - 10000 pages
