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Large Drop Volumes From Xaar-Type Inkjet Printheads

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While the trend for high resolution, photo quality printing demands inkjet drop volumes of a few picoliters, there are other applications that require large drop volumes for low resolution, high optical density printing. By modification of standard Xaar-type piezo inkjet printheads ink drops of more than 150 pl volume could be produced. Controlled drop formation was obtained, channel starvation did not occur, and the printhead appeared robust against misfiring, so that no channels were lost when printing even odd pattern for extended times.

In a further development step each ink channel was equipped with four nozzles, arranged in a square. In this fashion ,square dots’ were printed, which perfectly filled the square pixels of a 185 dpi raster. Consequently high quality line pattern could be printed on several inkjet papers at optical densities larger than 2 in a single pass.
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Document Type: Research Article

Publication date: 2002-01-01

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  • 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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