For use with all models of Lexmark E320, E321, E322, E323, T630, T632, T634, T420, C720, T520, T522, T620, T622, W812, W820 printers and Lexmark X720, X520, X522, X522s, X820e, X620e, X632, X630, X632e MFPs. Also for use with all models of the Optra...