| 摘要 |
A main controller of an image forming apparatus allows a user to select whether to perform backup of an internal storage device to an external storage device when detecting that the external storage device is connected to a USB I/F. If the user selects to perform backup, the main controller denies access to the external storage device from processing other than the backup processing at least during the backup processing, and if the user selects not to perform backup, the main controller permits access to the external storage device from processing other than the backup processing. |
