An image forming apparatus of an embodiment includes a heating unit, first and second keeping units, and first and second transport units. According to the invention, the fastening part consists of a sintered silver-chloride material or receives such a material, wherein the absorbent insert is interchangeably screwed, pressed, latched, pushed andor wedged into the fastening part. The luminescent element includes a transparent electrode formed on the incident surface of the transparent substrate, an auxiliary electrode formed on a part of the transparent electrode, and a thin-film layer, which is formed on the transparent electrode, for emitting light. A pneumatic system is used to move the materials and mixture. The rotating section includes a heat generation section which generates heat and a heating flow path through which fluid which is heated by the heat generation section and is used for heating of the IC device passes.