专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

61. 发明授权

US4403228A Ink jet printing head having a plurality of nozzles 失效
标题翻译：具有多个喷嘴的喷墨打印头
公开(公告)号：US4403228A
公开(公告)日：1983-09-06
申请号：US359352
申请日：1982-03-18
申请人： Masayoshi Miura , Hiroshi Naito
发明人： Masayoshi Miura , Hiroshi Naito
IPC分类号： B41J2/06 , G01D15/18
CPC分类号： B41J2/06 , B41J2002/061 , B41J2202/02
摘要： An ink jet printing head comprising a nozzle plate having a plurality of nozzles successively arranged in a row. An airflow chamber is in communication with the nozzles for discharging air and ink therethrough to a writing surface and connected to a source of pressurized air for causing an airstream to make sharp turns at the entry into the nozzles creating a plurality of sharp pressure gradients. A liquid chamber is located behind the airflow chamber and connected to a source of ink. A meniscus forming member is located between the air and liquid chambers for causing the ink to form at least one meniscus by surface tension over an area extending parallel with the row of nozzles. Under the influence of the pressure gradients the meniscus of the ink is contoured into a plurality of surfaces convexed toward the nozzles. Electric fields are selectively established between the nozzles and the convexed surfaces for causing the ink to extend toward the corresponding nozzles to be torn apart into droplets which are discharged through the nozzles to the writing surface.
摘要翻译：一种喷墨打印头，包括具有连续排列成一排的多个喷嘴的喷嘴板。气流室与喷嘴连通，用于将空气和油墨通过其流到书写表面，并连接到加压空气源，以使气流在进入喷嘴的过程中产生尖锐的转弯，产生多个尖锐的压力梯度。液体室位于气流室后面并连接到油墨源。弯液面形成构件位于空气和液体室之间，用于通过表面张力在与该排喷嘴平行延伸的区域上形成至少一个弯液面。在压力梯度的影响下，油墨的弯液面被轮廓化成朝向喷嘴凸出的多个表面。选择性地在喷嘴和凸起表面之间建立电场，以使墨水朝向相应的喷嘴延伸以被分解成通过喷嘴排出到书写表面的液滴。

IPRDB

热门服务

关于我们

友情链接

联系方式