FLUID EJECTION DEVICE WITH GROUND ELECTRODE EXPOSED TO FLUID CHAMBER

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 o...

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Bibliographic Details
Main Authors LEONARD, Patrick, GE, Ning, GHOZEIL, Adam L
Format Patent
LanguageEnglish
French
German
Published 28.04.2021
Subjects
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Summary: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.
Bibliography:Application Number: EP20140884288