发明名称 FLUID EJECTING APPARATUS
摘要 A fluid ejecting apparatus including a pressure chamber filled with fluid, a pressure generating element that is provided on a surface of the pressure chamber that changes the volume of the pressure chamber, a nozzle that is in fluid communication with the pressure chamber that ejects the fluid, and a control unit that generates a maintenance drive pulse for discharging unnecessary bubbles together with fluid from the pressure chamber, wherein the maintenance drive pulse includes a first pulse portion that causes the pressure chamber to expand into an expanded state, a second pulse portion that maintains the expanded state for a predetermined period of time, and a third pulse portion that causes the pressure chamber to contract, wherein the pulse width of the first pulse portion is set to be equal to or smaller than half the Helmholtz resonance period of the fluid in the pressure chamber.
申请公布号 US2009079773(A1) 申请公布日期 2009.03.26
申请号 US20080234294 申请日期 2008.09.19
申请人 SEIKO EPSON CORPORATION 发明人 HOSONO SATORU;KAWAKAMI SAYURI
分类号 B41J29/38 主分类号 B41J29/38
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