A device verification system includes an operation panel, a computer coupled to the operation panel, and a server coupled to the computer. The operation panel includes an image acquisition unit. The computer receives an image of an operator acquired by the image acquisition unit and acquires a facial image of the operator from the image. The server receives the facial image from the computer. The server stores a facial image of an authorized operator and is configured to compare the received facial image to the stored facial image to determine whether the operator is verified.