发明名称 |
Ink reservoir with essentially constant negative back pressure |
摘要 |
An ink reservoir which incorporates a negative back pressure source coupled to a membrane wall of the reservoir to prevent ink leakage from a reservoir orifice is disclosed. The back pressure is created by either a linear or nonlinear spring which can be either independent of, or integral with, the membrane. The result is freedom from ink leakage and improved quality printing when the reservoir is used in conjunction with an ink pen such as used in ink jet printing.
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申请公布号 |
US4509062(A) |
申请公布日期 |
1985.04.02 |
申请号 |
US19820443973 |
申请日期 |
1982.11.23 |
申请人 |
HEWLETT-PACKARD COMPANY |
发明人 |
LOW, ROBERT N.;CLOUTIER, FRANK L.;SIEWELL, GARY |
分类号 |
B41J2/175;(IPC1-7):G01D15/16 |
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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