Abstract: A device for regenerating with ink an ink ribbon which is set in an ink ribbon cassette and has consumed ink contained therein is disclosed. The device includes a housing having an upper surface for mounting the cassette thereon; a guide pin disposed on the upper surface for slidably guiding the ribbon drawn out of the cassette; a guide roller inserted into and movable along an elongated slot formed in the upper surface for guiding the ribbon under tension in cooperation with the guide pin; a rotatable ink pad disposed on the upper surface to contact with the ribbon being guided by the guide pin and the guide roller for transfer ink on the ribbon; and driving means for moving the ribbon in the cassette. In operation, the cassette is removably held on the upper surface, and the guide roller is releasably locked at its play position with a solenoid to thereby make the ribbon contacted with the ink pad.