| 摘要 |
PURPOSE:To change the injection particle size of ink, by a method wherein a connector is provided so as to be partially engaged with the outer periphery of the leading end of an emitting pipe and the outer periphery of a nozzle having a different injection caliber is engaged with the inner periphery of the connector in a detachable manner. CONSTITUTION:When a piezoelectric element 8 is vibrated, ink 13 enters an emitting pipe 7 through a suction pipe 11 to be injected from a nozzle 10. A printing head has a connector 9 provided to the leading end 14 of the emitting pipe 7 and the nozzle 10 is inserted in the connector 9 to be connected to the emitting pipe 7 so as to be contacted with the leading end 14 thereof. The connector 9 is generally made of an elastomer to make the mounting and detachment of the nozzle 10 simple. Therefore, the inner diameter of the nozzle can be changed and the size of the injection particle of ink can be freely changed. |
