Printhead chip that incorporates nozzle chamber reduction mechanisms
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United States of America Patent
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Mar 13, 2007
Issued Date -
N/A
app pub date -
Jan 3, 2005
filing date -
Jun 9, 1998
priority date (Note) -
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status (Latency Note)
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Abstract
A printhead chip includes a substrate that incorporates a drive circuitry layer and defines a plurality of nozzle chambers and respective ink supply channels in fluid communication with the nozzle chambers. A plurality of nozzles is positioned on the substrate to be in fluid communication with respective nozzle chambers. A plurality of actuators is connected to the drive circuitry layer and is reciprocally displaceable with respect to the substrate on receipt of an electrical signal from the drive circuitry layer. At least one actuator is associated with each respective nozzle chamber. The actuators are positioned so that reciprocal displacement of each actuator results in reduction and subsequent enlargement of each respective nozzle chamber to eject ink drops from the respective nozzles.
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