| 摘要 |
A data communication apparatus comprises an input unit to input transmission data; a memory to store additional information to be transmitted together with the transmission data by which was input from the input unit; a prohibiting unit to prohibit the transmission of the transmission data in accordance with whether the additional information including the ID information to identify the transmission person or the like has already been stored in the memory or not; notifying units to notify that the transmission of the transmission data was prohibited by the prohibiting unit; a register to register the additional information into the memory; and a requiring unit to require to input the additional information when the transmission of the transmission data is prohibited by the prohibiting unit.
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