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Split Pulse Timings and Their Effect on Bubble Momentum and the Superheated Boundary Layer of a Thermal Ink Jet Device

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Abstract:

This paper quantitatively examines the underlying thermodynamics behind split fire pulse timings. It is shown that there is a direct relationship between the properties of the superheated boundary layer at the onset of bubble nucleation and the experimental data. An application specific - finite element program is shown to predict the jetting response curves with a 0.92 correlation coefficient. The theoretical analysis is robust enough to accurately predict the jetting response for varying pulse trains on two vastly different print head designs. Finally, it is shown that the maxima of the jetting response curves versus time are fundamentally related to the thermal diffusivity of the thin films.

Document Type: Research Article

Publication date: January 1, 2000

More about this publication?
  • For more than 25 years, NIP has been the leading forum for discussion of advances and new directions in non-impact and digital printing technologies. A comprehensive, industry-wide conference, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems, including drop-on-demand ink jet, wide format ink jet, desktop and continuous ink jet, toner-based electrophotographic printers, production digital printing systems, and thermal printing systems, as well as the engineering capability, optimization, and science involved in these fields.

    Since 2005, NIP has been held in conjunction with the Digital Fabrication Conference.

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