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Simulation of Traveling Wave Toner Transport

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Abstract:

A numerical computation of the dynamic flow of charged toner particles on a traveling electrostatic wave device is presented. In contrast to simple single particle models, the simulation is performed for a large ensemble of toner particles and takes into account mechanical and electrical interactions. This more realistic computation is based on a two-dimensional finite element field calculation of the imposed traveling electrostatic wave. The particles are modeled as spheres of different sizes, each carrying a point charge inside. Boundary conditions at the substrate surface are met by the method of image charges. Collective electrostatic effects that tend to force the particles towards the conveyor surface are described by an additional electric field accounting for the space charge in the toner cloud. Besides the mutual electrical interactions, collisions between the particles and impact forces at the conveyor surface are included in the calculations as well. Simulations with an ensemble of 250 particles are shown and discussed relative to experimental results.

Document Type: Research Article

Publication date: 2002-01-01

More about this publication?
  • For more than 30 years, IS&T's series of digital printing conferences have been the leading forum for discussion of advances and new directions in 2D and 3D printing technologies. A comprehensive, industry-wide conference that brings together industry and academia, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems?particularly those involved with additive manufacturing and fabrication?including bio-printing, printed electronics, page-wide, drop-on-demand, desktop and continuous ink jet, toner-based systems, and production digital printing, as well as the engineering capability, optimization, and science involved in these fields. In 2016, the conference changed its name formally to Printing for Fabrication to better reflect the content of the meeting and the evolving technology of printing.

    Please note: For purposes of its Digital Library content, IS&T defines Open Access as papers that will be downloadable in their entirety for free in perpetuity. Copyright restrictions on papers vary; see individual paper for details.

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