发明名称 |
METHOD AND APPARATUS FOR DETECTING RESONANCE CONDITIONS OF DROPLET EJECTION HEAD |
摘要 |
PROBLEM TO BE SOLVED: To reduce time for detecting resonance conditions of a droplet ejection head.SOLUTION: A method for detecting resonance conditions of a droplet ejection head that discharges functional liquid from a nozzle in communication with a pressure chamber by resonating the functional liquid in the pressure chamber by giving a periodic external force to the pressure chamber in which the functional liquid is contained includes: an oscillation generating step of generating free oscillation of the functional liquid on a liquid surface at a discharge port of the nozzle without discharging the functional liquid from the nozzle by giving an instant external force to the pressure chamber in which the functional liquid is contained; and a frequency detecting step of detecting frequency of the free oscillation as frequency of the periodic external force based on a temporal response of a position on the liquid surface of the functional liquid that freely oscillates. |
申请公布号 |
JP2013240894(A) |
申请公布日期 |
2013.12.05 |
申请号 |
JP20120114309 |
申请日期 |
2012.05.18 |
申请人 |
DAINIPPON SCREEN MFG CO LTD |
发明人 |
TAKADA EMI;MASUO JUNICHI |
分类号 |
B41J2/16 |
主分类号 |
B41J2/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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