| 摘要 |
An image forming apparatus includes an authentication unit, a communication unit, a function availability data obtaining unit, a usage authorization data obtaining unit, and a display controller. The authentication unit authenticates a user. The communication unit communicates with an external device connected thereto. The function availability data obtaining unit obtains, from a memory, function availability data that defines whether or not a function related to the external device is available. The usage authorization data obtaining unit obtains usage authorization data indicating whether or not the user is authorized to use the function. The display controller causes, when the external device is connected to the communication unit, a display to display a screen related to authentication of the user, an image related to the function, or an image for notifying the user that the function is unavailable, in accordance with the function availability data or the usage authorization data.
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