This WASHER,COVER is suitable for Roland AJ-740 printers. This is the original part (number 21425110 ).
 
Printer compatibility
Roland AJ-740
Roland BN-20
Roland CJ-400
Roland CJ-500
Roland CJ-540
Roland EGX-40
Roland FJ-40
Roland FJ-400
Roland FJ-42
Roland FJ-50
Roland FJ-500
Roland FJ-52
Roland FJ-540
Roland FJ-600
Roland FLJ-300
Roland FP-740
Roland MDX-40
Roland RA-640
Roland RE-640
Roland RF-640
Roland RF-640a
Roland RS-540
Roland RS-640
Roland SC-500
Roland SC-540
Roland SC-545ex
Roland SJ-500
Roland SJ-540
Roland SJ-600
Roland SJ-640
Roland SJ-645ex
Roland SJ-740
Roland SJ-745ex
Roland SP-300
Roland SP-300i
Roland SP-300v
Roland SP-540i
Roland SP-540v
Roland VP-300
Roland VP-300i
Roland VP-540i
Roland VS-300i
Roland VS-540i
Roland VS-640i
Roland VS-540
Roland VS-640
Roland XF-640
Roland AJ-740i
Roland SG-300
Roland SG-540
Roland VG-640
Roland VG-540
Roland EJ-640
Roland XT-640
Roland XR-640