Abstract: A low-cost Multi Function Peripheral (MFP) prevents a user from forgetting to cancel an authenticated state. The MFP includes a scanner unit, a printer unit, a touch screen, and a reset key for initializing various settings. When the user is authenticated, the MFP accepts various operations. Under a state in which the user is authenticated, when the reset key is operated, a control unit executes a logout process.

Abstract: A low-cost Multi Function Peripheral (MFP) prevents a user from forgetting to cancel an authenticated state. The MFP includes a scanner unit, a printer unit, a touch screen, and a reset key for initializing various settings. When the user is authenticated, the MFP accepts various operations. Under a state in which the user is authenticated, when the reset key is operated, a control unit executes a logout process.

Abstract: A low-cost Multi Function Peripheral (MFP) prevents a user from forgetting to cancel an authenticated state. The MFP includes a scanner unit, a printer unit, a touch screen, and a reset key for initializing various settings. When the user is authenticated, the MFP accepts various operations.

Abstract: An authentication unit of a digital MFP carries out communication with an authentication server and executes an authentication procedure. The authentication unit acquires authentication information from an operator, transmits an authentication request including the authentication information to the authentication server, and receives an authentication result from the authentication server. A determination unit determines whether or not to permit offering of a function called by an operation performed on an operation unit. A flash memory stores a network authentication setting designating necessity or non-necessity of the authentication procedure for each function in a manner that the network authentication setting may be edited. When a function designated in the network authentication setting as a function requiring the authentication procedure is called, the authentication unit executes the authentication procedure.