Premium Compatible ESL3-4Bk Black Eco Sol-Max Ink fully compatible with the Roland RS-540, RS-640, SC-540, SC-545, SJ-1045, SJ-540, SJ-640, SJ-645, SJ-740, SJ-745, SP-300i, SP-540i, VP-300, VP-500, VP-540, VS-300, VS-420, VS-540, VS-640, XC-540, XJ-540, XJ-640, XJ-740. The use of compatible supplies does not void your printer warranty.