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New Corona Charging System For Low Cost Printers

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Upon accepting an invitation from Aetas Technology Incorporated to help develop a small, low cost charging system to charge a photoreceptor in a xerographic full color printer, we designed a charger by connecting an AC corona voltage to the coronode through a high voltage capacitor. In this manner, the capacitor will automatically bias itself to whatever voltage is needed to ensure equal positive and negative corona currents from the wire. The corona wire was partially surrounded by a conducting channel shield biased to the desired asymptote DC potential. The connection through the self-biasing high voltage capacitor produced I-V curves that were concaved downward. This proved to give profound advantages of a more definitive asymptote, and hence better charging uniformity, as well as higher efficiency, permitting higher process speeds.
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Document Type: Research Article

Publication date: 2002-01-01

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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