| 摘要 |
<p>A thermal head (2) includes a glass layer (21) provided with a groove section (26) formed inside the glass layer, a heat generating resistor (22) disposed outside the glass layer, and a pair of electrodes (23a,23b) provided to both sides of the heat generating resistor, wherein a part of the heat generating resistor exposed between the pair of electrodes is defined as a heat generating section (22a), and at least one of the pair of electrodes has a smaller width in an end section (28,29) on an opposite side to a side of the heat generating section than a width of an end section (30,31) on the side of the heat generating section.
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