Speedy Inks - Compatible 6PK Black POS Ribbon Cartridges for Epson ERC-31B For use in: Epson M31PA, Epson TM-930, Epson TM-U950, Epson TM-U590, Epson M32SA, Epson M26SA, Epson M930, Epson TM-930II, Epson TM-925, Epson TM-950, Epson TM-U925, Epson TM-H5000, Epson TM-H5000II Page Yield: N/A Shelf Life: 48 Months Color: Black The use of aftermarket replacement cartridges and supplies does not void your printer's warranty