MODULES TO IDENTIFY NOZZLE CHAMBER OPERATION

摘要

An example device in accordance with an aspect of the present disclosure includes modules to communicate an input signal to an ink sample to obtain an ink signal, compare the ink signal to a reference value, and identify an indicator of nozzle chamber operation corresponding to the ink signal. A module may be contained on an inkjet printhead die, such that the device may generate the input signal on the inkjet print head die.

主权项

1. A device comprising:
a signal module, to communicate an input signal to an ink sample associated with a nozzle to be fired, to obtain, during an evaluation interval, an ink signal including an impedance characteristic; a comparison module to compare the ink signal to a reference value; and an evaluation module to identify an indicator of nozzle chamber operation corresponding to the ink signal, based on a comparison result from the comparison module over the evaluation interval; wherein the signal module is contained on an inkjet printhead die, such that the device may generate the input signal on the inkjet printhead die.