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    • 49. 发明申请
    • INK-JET RECORDING HEAD
    • INK-JET记录头
    • US20100045748A1
    • 2010-02-25
    • US12606372
    • 2009-10-27
    • Keiji TomizawaShuichi Murakami
    • Keiji TomizawaShuichi Murakami
    • B41J2/05
    • B41J2/1433B41J2/1404B41J2/145B41J2002/14387B41J2002/14403B41J2002/14467B41J2002/14475
    • An ink-jet recording head includes a discharge-port portion including a first discharge-port portion continuing from a discharge port, and a second discharge-port portion communicating the first discharge-port portion with a bubble generation chamber. The second discharge-port portion has an end surface that includes a border portion bordering the first discharge-port portion and is parallel to a main surface of an element substrate. The cross-sectional area of the second discharge-port portion, anywhere from an opening surface facing the bubble generation chamber to an end surface facing the first discharge-port portion, that is parallel to the main surface of the element substrate, is larger than the area of the border portion. The cross-section of the opening surface of the second discharge-port portion has a length in a direction perpendicular to an arrangement direction of the discharge ports that is greater than its length in a direction parallel to the arrangement direction.
    • 喷墨记录头包括排出口部分,该排出口部分包括从排出口连续的第一排出口部分和将第一排出口部分与气泡生成室连通的第二排出口部分。 第二排出口部具有端面,该端面包括与第一排出口部分相邻的边界部分,并且平行于元件基板的主表面。 第二排出口部分的从面向气泡产生室的开口表面到面向第一排出口部分的端面的任何位置的横截面面积与元件基板的主表面平行的面积大于 边界部分的区域。 第二排出口部分的开口表面的横截面在垂直于排出口的排列方向的方向上的长度大于其在与排列方向平行的方向上的长度。