Cartridges comprising sensors including ground electrodes exposed to fluid chambers
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United States of America Patent
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Dec 25, 2018
Grant Date -
Jan 18, 2018
app pub date -
Sep 28, 2017
filing date -
Mar 7, 2014
priority date (Note) -
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Abstract
In some examples, a cartridge includes a printhead comprising a fluid feed slot, a fluid chamber formed between a nozzle layer and a passivation layer, the fluid chamber fluidically coupling the fluid feed slot and a nozzle of the nozzle layer, and a printhead-integrated sensor to sense a property of a fluid in the fluid chamber, the sensor including a ground electrode exposed to the fluid chamber through an opening in the passivation layer.
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