发明名称 Liquid ejecting head and liquid ejecting apparatus
摘要 <p>A liquid ejecting head includes nozzles which eject the liquid; pressure chambers which communicate with the nozzle; a pressure chamber substrate in which the pressure chambers are defined by partition walls; a piezoelectric element which generates a pressure change in a ink inside the pressure chamber; and a nozzle forming substrate which is joined to the pressure chamber substrate by adhesive and defines the bottom portion of the pressure chamber, the organic solvent-based ink having a compression rate greater than a compression rate of water is ejected from the nozzle by driving the piezoelectric element and by generating the pressure change in the pressure chamber, and when a width of the pressure chamber in an arrangement direction of the pressure chambers is W and a width of the adhesive in the arrangement direction of the pressure chambers in a state where the adhesive is flowed out from between a lower end portion of the partition wall and the bottom member to the pressure chamber side and then is solidified is L, the following expression is satisfied, 0.05 ‰¤ L/W ‰¤ 0.3.</p>
申请公布号 EP2631071(B1) 申请公布日期 2015.06.17
申请号 EP20130156813 申请日期 2013.02.26
申请人 SEIKO EPSON CORPORATION 发明人 OZAWA, KINYA;TSUCHIHASHI, RYOSUKE;MAKITA, SHUSHI
分类号 B41J2/14;B41J2/16 主分类号 B41J2/14
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