US Patent 10960665 Element substrate, printhead, and printing apparatus
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Patent abstract
An element substrate provided in a printhead includes a heater configured to heat ink and discharge the ink from a nozzle, a temperature sensor provided in correspondence with the heater, an electric current source configured to energize the temperature sensor with an electric current based on an electric current value specified by an externally input first signal, and a determination circuit configured to determine an ink discharge status of the nozzle based on a voltage output from the temperature sensor energized with the electric current and a threshold voltage specified by an externally input second signal, and output a determination result signal.
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Patent Inventor Names
Hiroyasu Nomura0
Nobuyuki Hirayama0
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Patent Number
109606650
Date of Patent
March 30, 2021
0Patent Application Number
163613650
Date Filed
March 22, 2019
0Official Website
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US Patent 10960665 Element substrate, printhead, and printing apparatus
Infobox
Is a
Patent jurisdiction
Patent number
10960665
Date of patent
March 30, 2021
Patent application number
16361365
Date Filed
March 22, 2019
Patent primary examiner
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