| 摘要 |
PROBLEM TO BE SOLVED: To prevent clogging from occurring in a liquid-jetting recording device in which an ejection opening has a distance in depth of the ejection part. SOLUTION: Fine particles each having a size of Dp(μm) is dispersed in a liquid so as to provide a recording liquid, the recording liquid is jetted out from the minute ejection opening and caused to be adhered on an object to be printed, thereby performing print. As a discharge port 4, the end part of a flow passage is used as the discharge port as it is or a separate discharge port is formed at the end of the flow passage. The discharge port has a distance t(μm) in the depth, and Dp/t≤0.01 When the shape of the outside corner portion 4A<SB>1</SB>is an r shape (circle shape), a sag of the corner parts is made to be 50 Dp or less. COPYRIGHT: (C)2007,JPO&INPIT
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