This set of 20 Cap screws M4*15 is suitable for Roland AJ-1000 printers. This is the original Roland part (number 31049174AS).
 
Printer compatibility
Roland AJ-1000
Roland AJ-1000i
Roland AJ-740
Roland AJ-740i
Roland AJ-740vkit
Roland BN-20
Roland FJ-540
Roland FJ-640
Roland FJ-740
Roland FP-740
Roland LEF-12
Roland LEF-20
Roland LEJ-640
Roland RA-640
Roland RE-640
Roland RS-540
Roland RS-640
Roland SC-545ex
Roland SJ-645ex
Roland SJ-745ex
Roland SP-300i
Roland SP-540i
Roland VP-300i
Roland VP-540i
Roland VS-300
Roland VS-300i
Roland VS-420
Roland VS-540
Roland VS-540i
Roland VS-640
Roland VS-640i
Roland XR-640
Roland SP-540v
Roland SJ-540
Roland SJ-640
Roland SJ-740
Roland LEC-300
Roland XF-640
Roland SG-300
Roland SG-540
Roland VG-640
Roland VG-540
Roland EJ-640
Roland RF-640
Roland RF-640a
Roland XT-640
Roland GX-300
Roland GX-400
Roland GX-500