A closing auxiliary device includes an automatic sheet feeder, a closing auxiliary handle, and a magnet and a metal portion. The automatic sheet feeder is provided in the apparatus main body while being openable and closable by a hinge unit. The closing auxiliary handle is rotatably provided in one side portion of the automatic sheet feeder. The magnet and the metal portion fix the closing auxiliary handle and the automatic sheet feeder. When the automatic sheet feeder is opened to form a predetermined angle between the automatic sheet feeder and the apparatus main body, the closing auxiliary handle is released from the automatic sheet feeder to which the closing auxiliary handle is fixed by the magnet and the metal portion. A projection portion and a rotation control portion are provided in the closing auxiliary handle.