Sharp ER31SP Cash Register Ribbon
ERC-18 Ink ribbon Cassette can be used to following cash registers.
Sharp ER2640
Sharp ER29SP
Sharp ER3100
Sharp ER3110
Sharp ER3115
Sharp ER31SP-
Sharp ER3210
Sharp ER3250
Sharp ER330
Sharp ER3300
Sharp ER3310
Sharp ER3311
Sharp ER4100
Sharp ER4100s