For use in Ricoh MP 2554SP, MP 2555SP, MP 3054SP, MP 3055SP, MP 3554SP, MP 3555SP, MP 4054SP, MP 4055SP, MP 5054SP, MP 5055SP, MP 6054SP, MP 6055SP, IM 2500, IM 3500, IM 4000, IM 5000, IM 6000 A compatible replacement for 841999 / 842126 / Type MP6054 and 841993 / 842124 / Type MP3554 Same Performance as OEM, but a BETTER VALUE PAGE YIELD: 37,000 pages per cartridge, based on 5% page coverage according to the industry standard ISO/IEC 19752