The present application relates to a driving machine. The side edge portions of the rear waist region are respectively interposed between the stretchable waist area and the stretchable wing areas. The visual images on the first and second sides of the recording medium are fixed by the fixing device in a state that the second image bearing member and the recording medium are overlapped with each other. Electronic hardware can be field reconfigured to accommodate different display formats andor application functions. The microwave oven has pre-programmed buttons corresponding to each of the types of food displayed in the freezer, each button activating the microwave oven to correctly heat a corresponding type of frozen food.