Inkjet printer having a printhead with a bi-layer thermal actuator coil
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United States of America Patent
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Jun 23, 2009
Grant Date -
Oct 16, 2008
app pub date -
Jun 15, 2008
filing date -
Jul 15, 1997
priority date (Note) -
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status (Latency Note)
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Abstract
Provided is a printhead for an inkjet printer. The printhead has a plurality of micro-electromechanical ejection mechanisms arranged in a wafer substrate, with each mechanism having chamber walls and a roof formed on top of said substrate to define an ink chamber. One wall of the chamber defines a slot therein. The mechanism also includes an ink supply channel defined through the substrate to said chamber. The mechanism includes a bi-layer thermal actuator coil fast with the substrate and ending in a strut extending through the slot, said strut fast with a paddle device within the chamber.
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