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Gray Balance Control Loop for Digital Color Printing Systems

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Four-color process printers generally use gray balance for achieving color balance. Here we describe a novel gray balance control system which uses multivariable state feedback principles. We show that the system performance is greatly improved and the requirements on number of color measurements per calibration initialization are greatly reduced. A synthesis of a state space control model, feedback controller and TRC smoothing techniques are discussed in detail to achieve good prints after gray balance. Experimental results are shown to validate the approach when used for real-time feedback control of color systems.

Document Type: Research Article

Publication date: 2005-01-01

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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