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Enabling Higher Jetting Frequencies for Inkjet Printheads Using Iterative Learning Control

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Inkjet printheads operate thanks to resonating fluid- mechanics. At the same time, however, this limits the attainable jetting frequency since the residual vibrations must be damped first prior to jetting a next droplet. This paper presents an approach based on lifted ILC with which input wave forms are designed that leave the droplet formation undisturbed while bringing the channel to a rest quickly after droplet ejection. This paper shows the modeling required for ILC, the design of the ILC controller in the lifted setting with separate observation and actuation windows, and the experimental implementation.
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Document Type: Research Article

Publication date: 2005-01-01

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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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