For use in: AR M208, AR M236, AR M237, AR M256, AR M257, AR M276, AR M277, AR M316, AR M317, AR M318, AR 215, AR 235, AR 275, AR 5625, AR 5631 copiers Replaces OEM part numbers: AR-310NT, AR-270NT Toner kit contains: 2 black cartridges Same Yield as the Original: 25,000 pages per cartridge, based on the industry standard ISO/IEC 19752 at 6%