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Dielectric Variation In Paper and Its Effects On Electrophotographic Printing

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Print density mottle of the solid black images in electrophotographic printing is related to paper structure. We found that mottle in commercial papers has a strong correlation with PCC filler distribution, but a very weak correlation with the overall visual formation. We explain these observations using a new mathematical model that simulates the electrostatics of toner transfer. Simulations show that print density mottle is strongly influenced by spatial variations in the dielectric permittivity of paper and paper thickness variations. It is shown that the permittivity is strongly influenced by filler distribution and to a lesser extent by visual formation.

Document Type: Research Article

Publication date: January 1, 2002

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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