<p>Piezo inkjet has been widely used in a wide variety of industrial applications due to its robustness and insensitivity to ink chemistry. The driving signal plays a major role in droplet generation, such as droplet size, velocity, pinch-off time, satellites, and ultimately printing speed and quality. While the existing research has provided insights into the importance of the driving signal,&nbsp;no systematic study or model has provided&nbsp;an understanding of how the driving signal and printhead parameters affect the ejection.&nbsp;This paper aims to provide a fundamental understanding of the effects of the driving signal on inkjet printing. First, a low-cost drop-on-demand (DOD) droplet generation system was developed to provide an experimental setup for the study. A model&nbsp;was developed to predict the ejection under the influence of the driving signal. Experimental tests were then performed to calibrate the model coefficients and validate the model. It is found the results from models agree with those in experiments.</p>

Effects of Driving Signal on Piezo Inkjet Printing

Paper Proceedings: https://asmedigitalcollection.asme.org/MSEC/MSEC2021/volume/85062

2021 International Manufacturing Science and Engineering Conference (MSEC2021)

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