公开(公告)号：US4745419A

公开(公告)日：1988-05-17

申请号：US57184

申请日：1987-06-02

申请人： Calvin F. Quate ,  Scott A. Elrod

发明人： Calvin F. Quate ,  Scott A. Elrod

IPC分类号： B41J2/175 ,  B41J2/015 ,  B41J2/045 ,  B41J2/05 ,  B41J2/055 ,  B41J2/14 ,  B41J2/33 ,  G01D15/16

CPC分类号： B41J2/14008 ,  B41J2/14161 ,  B41J2/33

摘要： To facilitate the use of hot melt inks in acoustic ink printers of the type having a printhead including one or more acoustic droplet ejectors for supplying focused acoustic beams, such a printer comprises a carrier for transporting a generally uniformly thick film of hot melt ink across its printhead, together with a heating means for liquefying the ink as it nears the printhead. The droplet ejector or ejectors are acoustically coupled to the ink via the carrier, and their output focal plane is essentially coplanar with the free surface of the liquefied ink, thereby enabling them to eject individual droplets of ink therefrom on command. The ink, on the other hand, is moved across the printhead at a sufficiently high rate to maintain the free surface which it presents to the printhead at a substantially constant level. A variety of carriers may be employed, including thin plastic and metallic belts and webs, and the free surface of the ink may be completely exposed or it may be partially covered by a mesh or perforated layer. A separate heating element may be provided for liquefying the ink, or the lower surface of the carrier may be coated with a thin layer of electrically resistive material for liquefying the ink by localized resistive heating.

摘要翻译： 为了便于在具有打印头的类型的声学墨水打印机中使用热熔油墨，该打印头包括用于提供聚焦声束的一个或多个声学液滴喷射器，这种打印机包括用于将大致均匀厚的热熔油墨膜横过其传送的载体 打印头，以及用于当墨水靠近打印头时液化油墨的加热装置。 液滴喷射器或喷射器通过载体与油墨声学耦合，并且它们的输出焦平面基本上与液化油墨的自由表面共面，从而使得它们能够按照命令喷射各自的墨滴。 另一方面，油墨以足够高的速率移动穿过打印头，以保持其以基本上恒定的水平呈现给打印头的自由表面。 可以使用各种载体，包括薄塑料和金属带和网，并且油墨的自由表面可以完全暴露，或者可以被网孔或穿孔层部分地覆盖。 可以提供单独的加热元件用于液化墨水，或者载体的下表面可以涂覆有用于通过局部电阻加热来液化墨水的电阻材料的薄层。