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Volume: 40 | Article ID: art00005
ELPHI, A New Approach to Electrophoretic Imaging
  DOI :  10.2352/J.ImagingSci.Technol.1996.40.1.art00005  Published OnlineJanuary 1996

A new printing process called ELPHI (ELectroPHoretic Imaging) is presented. An electronic print plate with an electrode for each pixel of the final image generates an electric field. Charged dye particles of a liquid toner suspension migrate under the influence of the electric field and deposit on the pixel electrodes. The gray scale of each pixel is controlled by the applied voltage and by the time during which the voltage is applied. After development the toner image is transferred to paper. A comparison of the ELPHI process with common imaging technologies shows the advantages of the new approach. An experimental printing setup that is described is used for measuring the process characteristics. The electronic control of the process allows for correction of the nonlinear characteristics. Printing samples of two different electrode test structures are presented to demonstrate the potential of the ELPHI process for the printing of high-quality gray-scale images.

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G. Bartscher, J. Breithaupt, B. Hill, "ELPHI, A New Approach to Electrophoretic Imagingin Journal of Imaging Science and Technology,  1996,  pp 14 - 18,

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Copyright © Society for Imaging Science and Technology 1996
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