The invention relates to an operation device and an image processor provided with same. A touch key in a control device comprises: a circuit substrate (310) having light sources (312, 314) mounted thereon; a light transmissive part (322) for transmitting light; an opaque light shielding part (324); and a translucent control panel (300) covering the upper surface of the light transmissive part andthe light shielding part. The light transmissive part houses the light sources, and the light transmissive part and the light shielding part are kept in close contact with each other. The circuit substrate (310) and the light shielding part (324) cover the light transmissive part (322) so that light is emitted from only the surface in contact with the control panel (300), thus preventing light from leaking from the periphery of a graphic indicating a touch key, and creating a high-quality feeling.