| 摘要 |
<p>A thermal print head (A) is provided with a heat element (5) provided on a board (1), an electrode (3) for carrying electricity to the heat element (5), and a protecting film (6) for covering the heat element (5) and the electrode (3). The surface roughness of the protecting film (6) is 0.2mum or more in ten-point height of irregularities.</p> |
