COMMUNICATION DEVICE, AND METHOD FOR MANAGING IDENTIFICATION INFORMATION BY COMMUNICATION DEVICE

摘要

A first backup unit (412) backs up first identification information in backup memory (420) when an identification information determination unit (411) has determined that the first identification information represents an item that has not been replaced; and a second backup unit (414) that backs up the first identification information in the backup memory (420) when a confirmation unit (413) has determined that the identification information has not been backed up in the backup memory (420). A storage processing unit (415) updates the first identification information stored in communication unit-side memory (430) according to second identification information stored in the backup memory (420) when the confirmation unit (413) has determined that the identification information has been backed up in the backup memory (420).