| 发明名称 |
Back pressure control in ink-jet printing. |
| 摘要 |
<p>The system for controlling the back pressure in the reservoir (22) of an ink-jet pen includes a pump (36) for removing air from the reservoir and a vacuum regulator (38) to ensure that the back pressure within the reservoir does not exceed a level that would cause the print head to fail. <IMAGE></p> |
| 申请公布号 |
EP0567270(A2) |
申请公布日期 |
1993.10.27 |
| 申请号 |
EP19930302929 |
申请日期 |
1993.04.15 |
| 申请人 |
HEWLETT-PACKARD COMPANY |
发明人 |
COWGER, BRUCE;BEESON, ROBERT R.;SCHANTZ, CHRISTOPHER A.;WEST, WILLIAM J. |
| 分类号 |
B41J2/175;B41M5/00;F04B43/02;(IPC1-7):B41J2/175 |
主分类号 |
B41J2/175 |
| 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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