| 摘要 |
PROBLEM TO BE SOLVED: To provide an image processing system 1 capable of easily increasing an external storage medium if necessary while limiting the number of external storage media that can restore a log.SOLUTION: A terminal device 300 includes file creation means 402 for storing a file including individual information of an external storage medium 200 in the external storage medium 200 and creating a table including the individual information, and decryption means 408 for decrypting an encrypted log after determining that the individual information of the external storage medium 200 is coincident with the individual information of the table. A compound machine 100 includes individual information determination means 405 for determining whether the individual information of the external storage medium 200 is coincident with the individual information of the file, and encryption means 407 for encrypting a log of the compound machine 100 and store the encrypted log in the external storage medium 200 in the case that the individual information of the external storage medium 200 is coincident with the individual information of the file. |
