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Direct Color Consistency Control for Xerographic Printing

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Abstract:

The digital color printing process can be described by the color reproduction characteristics (CRC) function that maps the input color to the output color. The CRC map is high dimensional in that there are potentially high number of output colors that a digital color printing process can reproduced. To maintain color consistency, it is desirable to have the CRC to match the desired CRC map at all times. In this paper, we first propose an effective sparse sensing approach known as time-sequential sampling to retrieve the time-varying CRC using small number of color samples at each print cycle. The availability of this information enables formulation of a 2-STAGE process level control system: STAGE-I is a curve fitting robust control that makes best use of the xerographic actuators and STAGE-II is a image feedforward compensation scheme. The key contribution of this paper is in proposing direct CRC control (full closed loop) for maintaining color consistency, as opposed to stabilizing the TRC of all the primary color separations (i.e. Cyan, Magenta, Yellow and Black) in previous works. Effective CRC stabilization is demonstrated using the proposed approach while requiring small number of color samples.

Document Type: Research Article

Publication date: 2009-01-01

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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