The Brother PC-301 Black Ribbon is designed to work with MFC-970 MC, FAX-750, FAX-770, FAX-870 MC, FAX-910, FAX-917, FAX-920, FAX-920 Z, FAX-921, FAX-930, FAX-931, FAX-940 E-Mail, IntelliFax 750, IntelliFax 770, IntelliFax 775, IntelliFax 775 SI,...