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Control Analysis of a Hybrid Two-Component Development Process

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In this paper, we will illustrate the utility of a control oriented model for a hybrid two component development process. The model used for control extracts relevant characteristics from an experimentally validated numerical model based on toner age distribution and development probability. Equilibrium analysis of the model shows that developability loss associated with low area coverage, low humidity operating conditions can be attributed to the fact that the development process is not operating around an equilibrium point. Velocity field analysis indicates the process has limited controllability under these operating conditions. Based on these observations, a constrained optimal control problem is formulated to develop a control strategy to maximize the operating time while maintaining acceptable developability. The numerical solution shows that for a given operating condition, with bounded toner concentration and development voltage, the optimal dispense strategy is a concatenation of a zero-dispense profile and a controlled dispense rate associated with operating the development voltage at its maximum value.
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Document Type: Research Article

Publication date: 2006-01-01

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  • 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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