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Aerodynamic Effect on Inkjet Main Drop and Satellite Dot Placement

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With the development of inkjet technology, high-speed printing was enabled with wider printhead and/or higher carriage scan speed. Photo quality images were achieved with smaller drops and multi-level, high-resolution printing. Due to the inherent features of thermal inkjet, the aerodynamic effect will be more significant in the future inkjet development.

This paper presents the numerical simulation of the aerodynamic effect on inkjet main drop and satellite dot placement. In this model, the stationary flow and plane Couette flow were used to simplify the flow patterns underneath the printhead. Non-spherical drop shape and evaporation were neglected. Droplets were traced with the Lagrangian approach. The aerodynamic effect on main drop and satellite motion and dot placement were simulated in three simplified cases and correlated with print samples. This model can also be used to simulate the aerodynamic effect on future inkjet printing with small drops and/or with high scan speed.

Document Type: Research Article

Publication date: January 1, 1998

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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