This item is compatible with the following printers: Lexmark , 1299845, 1337762, 1337764, 135000, 1356000, 1380999, Easystrike, Easystrike High Yield, Easystrike Superior Write, Easystrike T-III, IBM , 1000, 2500, 2500 SM, 3000, 5223, 6746, 6747, 6770, 6770/20, 6770/40, 6779, 6781, 6781-2, 6781-3, 6783, 6783-2, 6784, 6785, 6787, 6787-2, 6788, Diamond Serie, Easystrike, III 10-20, III 30-40-60, III 50, III 70, Superelectric I, Superelectric II, Superselectric 674X, System 2000, Wheelwriter, Wheelwriter 677X, Wheelwriter 678X, Panasonic , KX-E 7500, KX-E 8000, PELIKAN 551713, 1337761