Printer fluid impedance sensing in a printhead
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United States of America Patent
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Jan 22, 2019
Grant Date -
Jan 25, 2018
app pub date -
Apr 30, 2015
filing date -
Apr 30, 2015
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Abstract
In some examples, a printhead includes a firing chamber to receive printer fluid, an ejector positioned in the firing chamber to eject printer fluid droplets from the printhead, and a nozzle in fluid communication with the firing chamber. The printhead can further include an impedance sensor positioned in the firing chamber to contact printer fluid to measure impedance values of the printer fluid. The impedance sensor can be connectable to a controller to transmit impedance values of printer fluid to the controller.
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