An image bearing structure includes an image drum including at least one slot, a plurality of ring electrodes formed on an outer circumference of the image drum, and a control board positioned within the slot of the image drum, and connected to the plurality of ring electrodes, to detect a defect of the ring electrodes. By turning the rotary dial 31 with a finger, a rotor of an inner rotor type power generation unit 6, which is disposed inside the small power generator 1, is rotated by the rotational force through at least one intermediate gear. The anode support includes hydrocarbon oxidation catalyst deposited thereon, wherein the cathode support, electrolyte, and anode support are joined together and wherein the solid oxide fuel cell operates a temperature of 600\xb0 C. A controller configured to direct the film dispensing device to select one of the plurality of films for dispensing. The client is adapted to send a command and request a report relating to a select system point to and from the application controller.