发明名称 |
Ink jet recording head having spacer with etched pressurizing chambers and ink supply ports |
摘要 |
A pressurizing chamber 1 is formed as a recess by half etching of a silicon single-crystal substrate 2. A nozzle communicating hole 6 through which the pressurizing chamber 1 is connected to a nozzle opening 5 is formed as a through hole which is smaller in width than the pressurizing chamber 1. The pressurizing chamber 1 is connected to the nozzle opening 5 in the other face via the nozzle communicating hole 6 while reducing the volume of the pressurizing chamber 1 to a degree as small as possible. The silicon single-crystal substrate is used as a member constituting a spacer so that an ink drop of a reduced ink amount suitable for high density printing flies with high positioning accuracy.
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申请公布号 |
US6460981(B1) |
申请公布日期 |
2002.10.08 |
申请号 |
US20000556587 |
申请日期 |
2000.04.20 |
申请人 |
YASUKAWA SHINJI;USUI MINORU;NAKA TAKAHIRO;KITAHARA TSUYOSHI;OKAZAWA NORIAKI;SONEHARA HIDEAKI |
发明人 |
YASUKAWA SHINJI;USUI MINORU;NAKA TAKAHIRO;KITAHARA TSUYOSHI;OKAZAWA NORIAKI;SONEHARA HIDEAKI |
分类号 |
B41J2/14;B41J2/16;(IPC1-7):B41J2/045 |
主分类号 |
B41J2/14 |
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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