| 摘要 |
PURPOSE:To make it possible to print data continuously at high utility rate with an improved efficiency of heat conduction to a radiation fin by forming the radiation fin in a single piece with a base member. CONSTITUTION:A radiation fin 12 is integrally formed with the periphery of a base member 11 and therefore, gap is no longer present between the radiation fin and the base member, so that the efficiency of heat conduction from a piezoelectric element 4 to the radiation fin 12 is improved. In addition, a further improved efficiency of heat conduction can be expected, if the radiation fin 12 is made of an aluminum material having high heat conductivity. Thus it is possible to perform high-duty continuous printing and consequently improve printing speed. |
