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US 11,498,333 B2Granted
Element substrate, liquid discharge head, and printing apparatus
AssigneeCanon Kabushiki Kaisha
InventorAkio Goto
Life of this patent
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Abstract
An element substrate, according to an embodiment of this present invention, capable of detecting the behavior of a liquid at a high sensitivity, comprises: a first electrothermal transducer configured to generate heat to discharge a liquid; at least one temperature detection element arranged near the first electrothermal transducer; and a second electrothermal transducer configured to generate heat in association with a temperature detection operation by the at least one temperature detection element.
Claims7
An element substrate comprising:
- a first electrothermal transducer configured to generate heat to discharge a liquid;
- a second electrothermal transducer located in one side of the first electrothermal transducer;
- a third electrothermal transducer located in the other side of the first electrothermal transducer;
- a first temperature detection element located in the one side of the first electrothermal transducer;
- and
- a second temperature detection element located in the other side of the first electrothermal transducer,
- wherein the first, second and third electrothermal transducers and the first and second temperature detection elements are provided in one chamber, and
- wherein, in a planar view of the element substrate, the second electrothermal transducer and the first temperature detection element overlap with each other, and the third electrothermal transducer and the second temperature detection element overlap with each other.
5 more elements
Dependencies are inferred from the claim text.