Checks are provided with photographs of the payee to help prevent fraud when the checks are presented for negotiation. Then, based on the calculated T2 relaxation time, a T2-weighted image at the echo time TE2 is calculated by a T2-weighted image calculating section, and thereafter, based on the reference image and T2-weighted image at the echo time TE2, a sensitivity distribution is calculated by a sensitivity distribution calculating section. The wavy flexible body converts the human body pressure to an electrical signal and processes the electrical signal, thereby obtaining the human body physiological signal in daily life without directly contacting human skin, allowing the physiological signal to be obtained more conveniently. When the nozzles are at the lower point on the circular track, the head sections enter into the bags that are being conveyed at a constant speed, and a gas is caused to jet into the bags from the discharged openings, thus spread-opening the bags. In a second gain loop, the gain of the filtered signal is adjusted.