发明名称 |
Printhead support structure with cavities for pulse damping |
摘要 |
A printhead for an inkjet printer is disclosed. The printhead has one or more a printhead integrated circuits (ICs) with an array of nozzles for ejecting ink. A support structure of the printhead supports the printhead ICs. The support structure has ink conduits for supplying the array of nozzles with ink. Each ink conduit includes cavities distributed along a roof of the ink conduit. An opening to each respective cavity has an upstream edge and a downstream edge. The upstream edge contacts the ink before the downstream edge during initial priming of the ink conduits from an ink supply. The upstream edge has a transition face between the ink conduit and the cavity interior. The transition face is configured to inhibit ink from filling the cavity by capillary action during initial priming of the ink conduit. This causes gas to be trapped within the cavity. The gas acts to compress pressure pulses in the ink.
|
申请公布号 |
US8020965(B2) |
申请公布日期 |
2011.09.20 |
申请号 |
US20100905073 |
申请日期 |
2010.10.14 |
申请人 |
SILVERBROOK RESEARCH PTY LTD |
发明人 |
BROWN BRIAN ROBERT;BERRY NORMAN MICHEAL;JACKSON GARRY RAYMOND;SHARP PAUL TIMOTHY;MORGAN JOHN DOUGLAS PETER;SILVERBROOK KIA;NAKAZAWA AKIRA;HUDSON MICHAEL JOHN;MALLINSON SAMUEL GEORGE;REICHL PAUL JUSTIN;HIBBARD CHRISTOPHER |
分类号 |
B41J2/155;B41J2/165 |
主分类号 |
B41J2/155 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|