Porelon 11204 PR42 Calculator Ink Rolls, 2-Pack Compatible calculator ink roll, replaces manufacturers part #'s CP-13, IR-40T, EA-772R, 013110 and AD-4150 Vivid and consistent black and red colors Exceptional light fastness and durable impressions Designed to operate with original equipment identified, and will not void equipment warranty One year (12 months) warranty