The recognition rate is improved and recognition errors suppressed when recognizing magnetic ink characters. The character recognition unit 80 of a check reader 1 recognizes a magnetic ink character 101 by performing magnetic recognition based on comparing reference waveform data with character waveform data acquired by reading the magnetic ink character 101 with a magnetic head 54, and optical recognition based on comparing reference image data with image data acquired by reading the magnetic ink character 101 with a front contact image sensor 52; selects a plurality of candidates for the magnetic ink character 101 by magnetic recognition; and when plural candidates are characters with mutually similar character waveform data, determines that the one plural candidate character that matches the character recognized by optical recognition with reliability exceeding a specific threshold is the magnetic ink character 101.