发明授权
US06450615B2 Ink jet printing apparatus and method using a pressure generating device to induce surface waves in an ink meniscus
失效
喷墨打印装置和使用压力产生装置在油墨弯液面中诱发表面波的方法
- 专利标题： Ink jet printing apparatus and method using a pressure generating device to induce surface waves in an ink meniscus
- 专利标题（中）： 喷墨打印装置和使用压力产生装置在油墨弯液面中诱发表面波的方法
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申请号： US09026335申请日： 1998-02-19
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公开(公告)号： US06450615B2公开(公告)日： 2002-09-17
- 发明人: Ryuichi Kojima , Yasuhiro Otsuka , Torahiko Kanda , Fuminori Takizawa , Masakazu Okuda , Hirofumi Nakamura
- 申请人： Ryuichi Kojima , Yasuhiro Otsuka , Torahiko Kanda , Fuminori Takizawa , Masakazu Okuda , Hirofumi Nakamura
- 优先权： JP9-035279 19970219; JP9-035284 19970219; JP9-035309 19970219; JP9-035317 19970219
- 主分类号： B41J2135
- IPC分类号： B41J2135
摘要：
Characteristics of a droplet ejection apparatus are change depending on the shape or cone angle of the main ink ejection chamber of the apparatus, or on the diameter of the ejection aperture of main ink ejection chamber. Accordingly, operation of the droplet ejection apparatus varies with the shape, angle, or diameter of main ink ejection chamber. The shape of the aperture according to the present invention is circular or regular polygonal so that surface waves are synthesized at the central portion of the ejection aperture. Moreover, the cone angle of the main chamber is set to 65° or less from the plane vertical to the droplet ejecting direction and the diameter of the ejection aperture is set to a value 1.25 times or more larger than a desired droplet diameter.