A driving device includes a drive source that generates a force for moving a cleaning member that cleans an elongated member while moving in a longitudinal direction of the elongated member; an overload limiter disposed between an input side and an output side of a transmission unit that transmits the force from the drive source to the cleaning member, the overload limiter interrupting transmission of the force if a magnitude of the force reaches a predetermined magnitude; and a rotation detector disposed in the transmission unit on an output side of the overload limiter, the rotation detector detecting rotation caused by the force.