CONTROLLER, SHORTCUT ICON REGISTRATION METHOD, AND RECORDING MEDIUM

The present invention provides a controller capable of easily registering a shortcut icon without changing the screen, a shortcut icon registration method, and a computer readable recording medium storing the shortcut icon registration control program. The controller includes a registration unit that registers a shortcut icon that changes to a screen corresponding to the setting item of the function, and a display control unit that displays a setting area of the setting item and a display shortcut icon on the screen display. The icon display area displays the registered shortcut icon and the unregistered shortcut icon in the icon display area. If the unregistered shortcut icon is selected, the display control unit can display the unregistered shortcut icon on the screen display. When the setting item is selected from the list, the registration unit registers the selected unregistered shortcut icon in association with the selected setting item, and the display control unit can recognizethat the setting item is