Go to Amazon.com : http://www.amazon.com/gp/product/B003E24DEK?tag=theatrecat-20 <br /> <br />Compatible Universal Calculator Spool EPC B / R Black and Red Ribbons Works for Texas Instruments <br /> <br />Compatible Universal Calculator Spool EPC B R Black and Red Ribbons Works for Texas Instruments 5320 SV Texas Instruments 5330 Texas Instruments 5340 Texas Instruments 5640
