A system and method for movement control includes a controller coupled to a computer-assisted surgical device having a first movable arm coupled to a manipulatable device having a working end and a second movable arm coupled to an image capturing device. The sensing circuit and power supply is functional with voltages up to at least 240 Vac. Such rate can decrease to zero when the torque converter is idle or the clutch is fully engaged to operate without slip. The scan system may include a switching device such as a multiplexer. As a result of the visible light characteristic changing layer being exposed to the laser beam, a visible-light reflectivity of the visible light characteristic changing layer is changed, thereby forming a image corresponding to the image data on the label surface.