This servo board is suitable for Roland SJ-1045EX/ FJ-540/ SC-540 printers. This is the original Roland part number W811904010 replaced by 6700241190;
Printer compatibility
Roland CJ-540
Roland FJ-540
Roland SC-540
Roland SC-545ex
Roland SJ-1000
Roland SJ-1045ex
Roland SJ-540
Roland SJ-640
Roland SJ-645ex
Roland SJ-740
Roland SJ-745ex