Crack sensing for printhead having multiple printhead die
An inkjet printhead including a plurality of printhead dies, each printhead die including at least one crack sense resistor, at least one analog bus connected to each printhead die, and a controller separate from the plurality of printhead dies. The controller is configured to provide a known curren...
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Main Authors | , , |
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Format | Patent |
Language | English |
Published |
13.11.2018
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Subjects | |
Online Access | Get full text |
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Summary: | An inkjet printhead including a plurality of printhead dies, each printhead die including at least one crack sense resistor, at least one analog bus connected to each printhead die, and a controller separate from the plurality of printhead dies. The controller is configured to provide a known current to the at least one crack sense resistor of each printhead die in a selectable pattern via the at least one analog bus and to determine whether the printhead dies are cracked based on resulting voltages produced on the at least one analog bus. |
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Bibliography: | Application Number: US201515543420 |