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Simulation of Toner Mixing and Delivery System

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Detailed analysis of electro-photographic processes requires modeling of individual particles with DEM models. On the other hand, mixing of toners require analysis of billions of particles which is not practical to analyze using DEM models. One can employ continuum models for solution of such problems. The objective of this development is to couple both types of analyses. DEM models are used in regions which require modeling of microscopic properties of material in one region and continuum models are used to model macroscopic behavior of billions of particles at another. These two models are then analyzed in coupled form. Applications of both models have been demonstrated individually [1, 2]. In this paper only the coupling of these two models is presented. The above approach enables solution of problems such as coupling of mixing region in a printer with charging, development, transfer etc.

Another issue presented in this paper is the determination of macroscopic properties of the continuum model which is a difficult problem. These material properties are determined by comparing the results of the DEM model with the continuum model for simple experiments.

The example problem analyzed in this paper is the feeding of a charging blade with a roller, where mixing is occurring simultaneously with a pedal of larger dimensions.
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Document Type: Research Article

Publication date: January 1, 2012

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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