An image forming apparatus includes a plurality of image carriers, an optical writing unit, a plurality of developing units, a transfer member, a transfer unit, an image sensor, and a control unit. A resist composition using the resin as a base polymer is sensitive to high-energy radiation below 200 nm, has excellent sensitivity, and is suited for lithographic microprocessing. The aggregate MAC binds the plurality of data structures and attests to their combined integrity simultaneously. The entire system is mounted upon a vehicle for mobility. The control station is arranged to transform oscillating tension in the tethers produced by an oscillating movement of the lifting body into mechanical motion.