tailieunhanh - Progress and Trends in Ink-jet Printing Technology

Tài liệu khảo sát sự phát triển của kỹ thuật in phun và xu hướng | Tài liệu chi xem đươc một số trang đầu. Vui lòng download file góc để xem toàn bộ các trang Progress and Trends in Ink-jet Printing Technology Part 1 Hue P. Le Le Technologies Inc. Beaverton Oregon This paper provides a brief review of the various paths undertaken in the development of ink-jet printing. Highlights of recent progress and trends in this technology are discussed. The technologies embedded in the latest ink-jet products from current industry leaders in both thermal and piezoelectric drop-on-demand ink-jet methods are also described. Finally this article presents a list of the potential ink-jet technology applications that have emerged in the past few years. Journal of Imaging Science and Technology 42 49-62 1998 Original manuscript received November 3 1997 IS T Member E-mail Hueple@ 1998 IS TThe Society for Imaging Science and Technology Ink-jet Printing Development Path Ink-jet is a non-impact dot-matrix printing technology in which droplets of ink are jetted from a small aperture directly to a specified position on a media to create an image. The mechanism by which a liquid stream breaks up into droplets was described1 by Lord Rayleigh in 1878. In 1951 Elmqvist of Seimens patented the first practical Rayleigh breakup ink-jet This invention led to the introduction of the Mingograph one of the first commercial ink-jet chart recorders for analog voltage signals. In the early 1960s Dr. Sweet of Stanford University demonstrated that by applying a pressure wave pattern to an orifice the ink stream could be broken into droplets of uniform size and When the drop break-off mechanism was controlled an electric charge could be impressed on the drops selectively and reliably as they formed out of the continuous ink stream. The charged drops when passing through the electric field were deflected into a gutter for recirculation and those uncharged drops could fly directly onto the media to form an This printing process is known as