Brother Genuine Original "OEM" PC304RF or PC-304RF Black Thermal Transfer Ribbon Refills (4/pack) for IntelliFAX 750, 770, 775, 870MC, 885MC, 970MC, Page Yield: 500. OEM Definition: Original Equipment Manufacturer, which means it is a genuine toner, inkjet, or ribbon directly made by its manufacturer and labeled by the manufacturer. SKU Number: PC304RF
 "OEM Genuine Brother PC304RF Ribbon Refills")