US Stock-4pcs Original Epson Damper for Roland VS-640 / RA-640 / RE-640 / FH-740 - 1000006526. US Stock-4pcs Original Epson Damper for Roland VS-640 / RA-640 / RE-640 / FH-740 - 1000006526 Printer Compatibility. Roland FH-740 / RA-640 / RE-640 / VS-640 / VS-540 / VS-420 / VS-300 / BN-20, Epson Stylus Pro GS6000.