| 摘要 |
PURPOSE:To obtain a thermal printer capable of effective printing without errors by using a system in which the presence of ink ribbon is detected, and one-way printing or both-way printing is automatically selected. CONSTITUTION:When thermal transfer printing is made, the ink of an ink ribbon 5 is transferred to a recording paper for printing by the heating of a thermal head 3. At a thermal printing mode, going-returning printing is made during the period when the carriage 1 moves to both forwarding and backwarding directions. In the case of the forward printing, it is necessary to print bilaterally reversed data for the forwarding printing period. For this reason, the content of buffer is bilaterally reversed through a reverse circuit during the backward printing periods and stored in the buffer. The content of the buffer is sent to the thermal head 3 to perform normal printing.
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