Disclosed in an apparatus in which an actuating member provided for an opening and closing member actuates a switch provided for a main body of the apparatus. The apparatus includes a protecting member protecting the switch and a restricting member restricting an object entering an opening of the protecting member. The restricting member has an opening smaller than the opening of the protecting member. The restricting member is movable in the direction intersecting the direction in which the actuating member passes through the opening of the restricting member. The opening of the restricting member is reduced in size to prevent an accidental operation while being insusceptible to a space in the apparatus or deformation of the apparatus.