| 摘要 |
<p>To keep the gap between the printhead and print medium constant while holding the printhead 13 in the same posture, a platen gap adjustment mechanism 25 has a carriage guide shaft 22, a carriage drive unit 30 that is supported on a carriage guide shaft pivotably around the axis L1 of the carriage guide shaft, and a main carriage 31 that carries a printhead and is supported on the carriage drive unit pivotably around a parallel axis L2 that is parallel to the carriage guide shaft. When the print medium 100 conveyed over the platen roller 14 and the main carriage slide against each other and the main carriage 31 moves up tracking the thickness of the print medium, the carriage drive unit pivots up around the axis L1, and the main carriage pivots down around the parallel axis L2.</p> |
