In an image recording medium, in which a size of a first electrode layer is smaller than a recording photoconductive layer, image quality is enhanced by preventing an influence of corona discharge at an end portion of the first electrode layer and electric charge injection into the recording photoconductive layer. The on and off state of the retrieving light irradiating means is controlled in a manner that an electromagnetic wave for retrieval is not irradiated onto end portions of a non-imaging region of a retrieving photoconductive layer corresponding to a peripheral portion on an upper surface of the recording photoconductive layer where the first electrode layer is not provided, thus avoiding retrieval of a false image signal attributable to corona discharge at the end portion of the first electrode layer and electric charge injection from the end portion of the first electrode layer into the recording photoconductive layer.