发明名称 |
Test apparatus for liquid drop emission apparatus |
摘要 |
A test apparatus for a liquid drop emission apparatus having a plurality of emission mechanisms, the emission mechanisms each having a driving element configured to emit an ink drop from a nozzle, and an application switch coupled with a driving voltage source and the driving element in series, the application switch being configured to switch a driving voltage for emission of a liquid drop between being applied and not being applied to the driving element, the test apparatus including a test switch configured to make each of the emission mechanisms output a test voltage which appears between both ends of the application switch to a test terminal, the test apparatus including a failure deciding section configured to decide whether the emission mechanism is in failure or not on the basis of the test voltage outputted to the test terminal. |
申请公布号 |
US8740342(B2) |
申请公布日期 |
2014.06.03 |
申请号 |
US201313742139 |
申请日期 |
2013.01.15 |
申请人 |
Seiko Epson Corporation |
发明人 |
Kitazawa Koji |
分类号 |
B41J2/12;B41J2/05 |
主分类号 |
B41J2/12 |
代理机构 |
|
代理人 |
|
主权项 |
1. A test apparatus for a liquid drop emission apparatus having a plurality of emission mechanisms,
the emission mechanisms each having a driving element configured to emit an ink drop from a nozzle, and an application switch coupled with a driving voltage source and the driving element in series, the application switch being configured to switch a driving voltage for emission of a liquid drop between being applied and not being applied to the driving element, the test apparatus comprising: a test switch configured to make each of the emission mechanisms output a test voltage which appears between both ends of the application switch to a test terminal; and a failure deciding section configured to decide whether the emission mechanism is in failure or not on the basis of the test voltage outputted to the test terminal.
|
地址 |
Tokyo JP |