Patent ID: 8632267

Claim:
A carbon ribbon recovery device, comprising a carbon ribbon supply roller, a carbon ribbon recovery roller and a carbon ribbon driving device, wherein, the carbon ribbon recovery roller comprising: a first clutch plate, a second clutch plate, a friction element, a recovery gear and a spindle; wherein the spindle is provided on a frame of a printer and is adapted to support a carbon ribbon; the first clutch plate, the second clutch plate, the friction element and the recovery gear are arranged in turn on the spindle; the first clutch plate rotates synchronously with the spindle; the recovery gear, the friction element and the second clutch plate are rotatable around the spindle; the recovery gear is rotated by the carbon ribbon driving device to drive the friction element to rotate, then to provide the second clutch plate with a rotating force in the same direction; the second clutch plate is matched with the first clutch plate when the second clutch plate rotates in a predetermined direction, and the second clutch plate breaks away from a matched state with the first clutch plate when the second clutch plate rotates in a direction opposed to the predetermined direction.