An image forming device constructed with a processing device to form an image on a recording material, a first control device to operatively control the processing device so as to continuously form an image on the recording material, a sensing device to detect any disorder within the image forming device, and a second control device corresponding to the sensing device, which enables, on the one hand, operation of the processing device to be interrupted when the disorder occurs, and, on the other hand, the control operation of the first control device to be continued.