A band saw apparatus including a blade under tension and has a frame that includes a pivotably connected drive mount and a rotatable wheel supported by the drive mount. Each leg section has an outer wall portion with apertures for impingement-cooling of nozzle wall portions in registration with the outer wall portions. The management apparatus is configured to display the function list when the function list is received from the image forming apparatus. In one particular implementation, the authorization unit generates a digital signature for the input scan vector, which is then compared to a signature portion included within the input scan vector itself. The wireless communication system includes at least a portion of the induction coil for transmitting andor receiving a wireless signal at the induction coil, or for generating a communication electromagnetic field at the induction coil. The present invention further relates to a corresponding transmitting method and a frame structure as well as a receiving apparatus and method, as well as a transmitting and receiving system and method.