To read out at a time without a useless try, regardless of the type of identification cards and show a display image at an operator terminal.

After a customer makes an application for dealings at a customer terminal 1, the type of a certification card should be entered at a customer operation display unit and notified to an operator terminal 2. The size of the certification card notified at the input means is entered at the operator terminal 2 by an operator, information for specifying the read-out range corresponding to the size entered is transmitted to the customer terminal 1, and the identification card in the range specified by the information is read out by using an image scanner.