Back to results
US 10,500,846 B1Granted
Print head with integrated jet impedance measurement
AssigneeXerox Corporation
InventorDavid L. Knierim
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeXerox Corporation
InventorDavid L. Knierim
Estimating the term…
A print head, including a plurality of piezoelectric actuators, a pseudo-actuator, a drive rail, electronic selection circuitry connected to each of the plurality of piezoelectric actuators, the pseudo-actuator, and the drive rail, the electronic selection circuitry configured to select at least one of the piezoelectric actuators or the pseudo-actuator to connect to the drive rail, and a controller coupled to the drive rail, the controller configured to generate a waveform to drive the drive rail and measure a signal on the drive rail connected to a piezoelectric actuator, a pseudo-actuator, or without any connected piezoelectric actuators or the pseudo-actuator, and using the resulting measurements to calculate an impedance of a piezoelectric actuator.
A print head, comprising:
A method for measuring an impedance of each of a plurality of piezoelectric actuators of a print head, each piezoelectric actuator connected to electronic selection circuitry of the print head that drives the piezoelectric actuators during a print operation, comprising:
Dependencies are inferred from the claim text.