| 摘要 |
A data writing device (4) comprises a writing part (41) that writes data into a magnetic card, an input part (43b) to which a writing signal to be supplied to the writing part (41) is inputted, and a switching part (42c) that switches whether or not to connect the writing part (41) to the input part (43b) electrically. The switching part (42c) connects the writing part (41) to the input part (43b) electrically only when writing to the magnetic card is performed. |
