| 摘要 |
<p>In a serial recording apparatus wherein a recording head (7) is carried on a carriage (2) movable in the direction of print column and the recording head (7) is driven on the basis of printing data while scanning by the recording head, to thereby form a dot image on a sheet (5), piezoelectric elements (14A, 14B) are joined to a vibration plate (13) provided on the underside of the carriage (2) and the vibration plate (13) is slidably urged against the surface of a fixed member by a resilient force to thereby constitute a travelling wave type ultrasonic motor, and a travelling wave is generated in the vibration plate (13) by the piezoelectric elements (14A, 14B) being driven to thereby control the movement of the carriage (2).</p> |
