发明名称 |
INKJET PRINTER WITH BUBBLEPOINT PRESSURE REGULATOR AND RECIRCULATING INK SUPPLY |
摘要 |
An inkjet printer comprises: (a) an inkjet printhead having an inlet channel and an outlet channel; (b) an ink reservoir; (c) an ink pressure regulator for regulating a hydrostatic pressure of ink supplied to the printhead; (d) a first ink line connecting the ink outlet and the inlet channel of the printhead; and (e) a second ink line connecting the outlet channel of the printhead and a return inlet of said ink reservoir, such that ink is supplied in a recirculating circuit. The ink pressure regulator comprises: an ink chamber having an ink outlet; an air inlet open to atmosphere; and an air channel connected to the air inlet. The air channel has a constriction defining a bubble outlet, which is configured as a slot. A width dimension of the slot is dimensioned to control a Laplace pressure of air bubbles drawn into the ink as result of supplying ink to the printhead, and thereby regulates a hydrostatic pressure of the ink.
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申请公布号 |
US2010201767(A1) |
申请公布日期 |
2010.08.12 |
申请号 |
US20100765839 |
申请日期 |
2010.04.22 |
申请人 |
SILVERBROOK RESEARCH PTY LTD |
发明人 |
MORGAN JOHN DOUGLAS PETER;WANG MIAO;MCAULIFFE PATRICK JOHN;WORBOYS DAVID JOHN;SILVERBROOK KIA |
分类号 |
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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