This Absorber Tk-12 is suitable for Roland RS-540 printers. This is the original Roland part (number 11879107).
 
Printer compatibility
Roland AJ-740
Roland AJ-740i
Roland CJ-400
Roland CJ-500
Roland CJ-540
Roland CJ-60
Roland CJ-70
Roland CM-300
Roland CM-400
Roland CM-500
Roland CX-300
Roland CX-400
Roland CX-500
Roland FJ-400
Roland FJ-500
Roland FJ-540
Roland FJ-600
Roland FP-740
Roland GX-300
Roland GX-400
Roland GX-500
Roland GX-640
Roland LEF-12
Roland LEF-20
Roland PNC-1860
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-300i
Roland SP-540i
Roland VP-300
Roland VP-300i
Roland VP-540
Roland VP-540i
Roland SG-300
Roland SG-540
Roland VG-640
Roland VG-540
Roland XT-640