Technical Field
The present invention relates to a printer that improves security.
Background Arts
Now, with respect to an image forming apparatus such as a printer, a copier and an all-in one machine, an apparatus provided with multiple functions in order to enhance its additional values becomes highly-popularized. In addition, a printer provided with a function that enables of transferring various data with a removal storage medium such as a USB (Universal Serial Bus) memory and a SD (Secure Digital) card is developed recently. In such a printer, it is possible to print out electric files (such as image files or document files stored in a storage medium), and to store image files (such as original images scanned by a scanner of the printer) in a storage medium.
In such a printer, there may be a case where a user forgets to remove a storage medium that was installed in the printer by the user after his/her operation is completed. Especially in a case where a long-time operation is done from the installation of the storage medium, the user becomes increasingly likely to forget to remove the storage medium. In such a case, the storage medium still installed in the printer may be obtained by a third person other than the user, so that various print data stored in the storage medium may leak.
A Patent Document 1 (Japanese Patent Application Publication No. 2013-77942) discloses one of solutions to the above problem. In the disclosure, when a preset time has elapsed from a login time, print data stored in a storage medium installed in an installation port of a printer are moved to a storage memory of the printer and then the print data are deleted from the storage medium. Therefore, leakage of the print data stored in the storage medium, which is caused by failing to remove the storage medium, can be prevented.