These printers use the ESL3-4MG cartridge:
Roland RS 540
Roland RS 640
Roland SC 500
Roland SC 540
Roland SC 545
Roland SC 545 EX
Roland SJ 540
Roland SJ 640
Roland SJ 645
Roland SJ 645 EX
Roland SJ 740
Roland SJ 745
Roland SJ 745 EX
Roland SJ 1045
Roland SP 300 I
Roland SP 540 I
Roland VP 300
Roland VP 300 I
Roland VP 300 V
Roland VP 500
Roland VP 500 I
Roland VP 540
Roland VP 540 I
Roland VP 540 V
Roland VS 300
Roland VS 420
Roland VS 540
Roland VS 640
Roland XC 540
Roland XC 540 MT
Roland XJ 540
Roland XJ 640
Roland XJ 740