Patent ID: 8806614

Claim:
An image processing apparatus comprising: at least one central processing unit configured to function as an obtaining unit that obtains a first identification information from a first integrated circuit card; a storage unit that stores the first identification information obtained by the obtaining unit; a displaying unit that displays, in a case where the first identification information obtained by the obtaining unit corresponds to plural items of user information, a selection screen for selecting one of the plural items of user information; an accepting unit that accepts selection of user information from among the plural items of user information on the selection screen; a login unit that executes a login using the user information selected on the selection screen; a determination unit that determines, in a case where the obtaining unit obtains a second identification information from the first integrated circuit card or from a second integrated circuit card during the login using the user information selected on the selection screen, whether or not the second identification information obtained by the obtaining unit matches the first identification information stored in the storage unit; a controlling unit that causes the displaying unit to display again the selection screen for selecting one of the plural items of user information, in a case where the determination unit determines that the second identification information obtained by the obtaining unit matches the first identification information stored in the storage unit; and a logout unit that executes a logout using user information, wherein in a case where different user information is selected on the selection screen when it is again displayed by the displaying unit, the logout unit executes the logout using the user information selected when the selection screen was displayed for the first identification information, the login unit executes a login using the different user information, and the first identification information includes identification information to identify the first integrated circuit card and the second identification information includes identification information to identify the integrated circuit card on which the second identification information is stored.