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Small Dot Printing with Ion Head

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A novel solution is proposed and tested for the blooming problem present when generating latent images on a dielectric with an Ion head. Blooming refers to the increase in the latent image diameter as charges accumulate on the dielectric imaging substrate typically used for Ionography. The proposed solution consists on operating the Ion Head at pressures higher than atmospheric to enable large extraction fields without arcing. A pressurized chamber is built to demonstrate that higher pressure operation (2-3 atm) indeed allows extraction fields up to 12 V/μm. These large extraction fields (9-12 V/μm) allow to maintain the charge beam focused, enabling small dot (∼40 um) latent images. A liquid toner based development process is implemented combined with a 6.35 μm Mylar dielectric to generate small dot images and contrast them with those obtained when the extraction field is limited by arcing at atmospheric pressure.

Document Type: Research Article

Publication date: 2012-01-01

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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