Disclosed is an image processing device capable of recognizing a specific image such as an image which is prohibited from printing at high speed and, moreover, without being influenced by an image forming process. Through the simulator for CPR and defibrillator training, CPR and the use of the defibrillator for emergency medical technicians such as a doctor, a nurse and an emergency medical technician can be systematically and repetitively trained, and a person in charge of training can identify whether or not the education is performed effectively by recording and evaluating a training situation. The upper housing has a second groove and a plurality of depressing blocks being respectively aligned with the first groove and the recesses.