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Volume: 14 | Article ID: art00010_1
High Definition Ink-Jet Printing: A Study of a Printing Head Construction
  DOI :  10.2352/ISSN.2169-4451.1998.14.1.art00010_1  Published OnlineJanuary 1998

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.

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Takeo Miki, Masashi Hiroki, Yuka Yamaguchi, "High Definition Ink-Jet Printing: A Study of a Printing Head Constructionin Proc. IS&T Int'l Conf. on Digital Printing Technologies (NIP14),  1998,  pp 40 - 43,

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