The invention relates to an output circuit for an output module for switching at least one connected load. A particle 65 causing a defect in a film 66 that has been detected with a separate optical inspection system is detected with an optical microscope 43 based on position information acquired by the separate optical inspection system. The ratio of the currents provided by the two sources is accurately known. The block discrimination circuit portion discriminates a moving picture or a still picture to process the image information in accordance with the discriminated result, in which the number of gradations for the image information processed when the discriminated result is the moving picture is lower than when the discriminated result is the still picture.