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High Definition Ink-Jet Printing: A Study of a Printing Head Construction

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We have developed a novel ink-jet technology using electrostatic force. This innovative ink-jet technology features high-speed printing and little bleeding print dots on plain paper.

The print head comprises a metal pipe as both the means for supplying ink and for the electrode, and an “ink-guide” which is a dielectric film positioned inside of an opening of the pipe. This print head structure makes it possible to increase the toner density of the ink on the ink-guide to a greater extent than when supplying ink and to improve the efficiency of the ink drop ejection.

The ink contains positively or negatively charged colorants dispersed in a highly resistant solvent. This paper shows that the resistivity of the ink affects the toner density of the ejected ink droplet. This highly resistant ink produces little bleeding of print dots on plain paper.

Document Type: Research Article

Publication date: January 1, 1998

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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