Print head drive circuit and liquid ejecting apparatus
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United States of America Patent
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-
Jul 12, 2022
Grant Date -
Apr 1, 2021
app pub date -
Sep 25, 2020
filing date -
Sep 27, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
A print head drive circuit outputs an output signal from a terminal electrically coupled to a low voltage logic signal input terminal to which a low voltage logic signal is input and has a first mode in which the print head drive circuit controls a print head to execute reading processing of reading information stored in a memory and not to execute ejection control processing of controlling whether or not to supply a high voltage signal to an ejecting portion group by switching a switch group in accordance with the output signal and a second mode in which the print head drive circuit controls the print head not to execute the reading processing and to execute the ejection control processing in accordance with the output signal.
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