Meniscus Motion Inside A DoD Inkjet Print-Head Nozzle
Ravasio, Claudio S.
Hoath, Stephen D.
Martin, Graham D.
32nd International Conference on Digital Printing Technologies (NIP): Printing for Fabrication 2016
Society for Imaging Sciences and Technology
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Ravasio, C. S., Hoath, S. D., Martin, G. D., Boltryk, P., & Dorrestijn, M. (2016). Meniscus Motion Inside A DoD Inkjet Print-Head Nozzle. 32nd International Conference on Digital Printing Technologies (NIP): Printing for Fabrication 2016, 2016 (NIP32), 348-352. https://doi.org/10.17863/CAM.420
This is the author accepted manuscript. The final version is available from the Society for Imaging Sciences and Technology via http://www.ingentaconnect.com/contentone/ist/nipdf/2016/00002016/00000001/art00087
A new study of the jetting performance for drop-on-demand (DoD) inkjet print heads investigated meniscus motions inside the transparent nozzles of MicroFab inkjet print heads. A composite image representation of the observed meniscus motions, imaged at high resolution using a spark flash light source, was developed for our subsequent analyses of the influences of drive voltage and pulse dwell time and also the ink properties. At higher drive voltages a slow damped refill (following de-pinning of the meniscus from the very edge of the nozzle exit) was also clearly observed. This and many other interesting phenomena were observed with the composite images: internal bubbles that progressed through the nozzle region over relatively long timescales, internal break-off of the jet from the meniscus surface, satellite formation and merging, and the contact line de-pinning not previously observed before.
This research was performed by CSR under the Undergraduate Research Opportunities Program (UROP) scheme, within the University of Cambridge Inkjet Research Centre, funded by Xaar Ltd. SDH supervised and held an EPSRC Impact Acceleration Knowledge Transfer Fellowship (grant no. EP/K5037574/1) for working with a Xaar R&D team during the initial part of this project.
This record's DOI: https://doi.org/10.17863/CAM.420
This record's URL: https://www.repository.cam.ac.uk/handle/1810/256475