The image processing apparatus 1 at the manufacturing side can be accessed over the Internet 3 by the peripheral apparatuses 2A, 2B, and 2C at remote locations. When the image processing apparatus 1 receives from any of the peripheral apparatuses 2A, 2B, and 2C an image transmission command based on the HTTP protocol, it generates and transmits a response to the command carrying an image to the commanding peripheral apparatus 2A, 2B, or 2C. The peripheral apparatus 2A, 2B, or 2C upon being energized repeats an action of dispatching another image transmission command, an action of receiving the response, and an action of displaying the display image carried in the response in this order.