An operation panel includes a push key and a switch. The push key is depressed through an opening formed in a panel body. The switch is pushed by depressing of the push key. The push key includes a tapered part tapered toward the switch. The panel body includes an elastic piece inclined toward the tapered part from a circumference of the opening and elastically deformable to an opposite side to the tapered part. When the push key is depressed, the elastic piece is elastically deformed to the opposite side by the tapered part. When the depressing of the push key is released, the push key is pushed up by an elastic restoring force of the elastic piece.