Patent ID: 7715773

Claim:
A cleaning device comprising: a cleaning belt; an unwinder wound with the cleaning belt; a winder for winding up the cleaning belt intermittently from the unwinder along a path leading past a cleaning position where the belt is brought into contact with a body to be cleaned; and a detector fitted in a detecting position on the path between the unwinder and the cleaning position, wherein the cleaning belt has an end point set thereon near the trailing end of the belt, the end point associated with the detecting position, the detector is adapted to output a detection signal when detecting the end point, the cleaning belt has an opening as a detection part to be detected by the detector, the detection part positioned at the end point and at a preset distance from the trailing end of the cleaning belt and in a zone spaced from at least one edge of the belt, the detector has a pair of terminals for compressive contact with both sides of the cleaning belt in a range covering the zone, and the detector is adapted to detect the opening based on electric connection between the terminals, and the cleaning device further comprises a cleaning agent supplier for supplying a cleaning agent to the cleaning belt in the path between the detector and the cleaning position.