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New Ink Jet Recording for Generating a Plurality of Ink Jet Streams

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3 Author(s)
Ichinose, Susumu ; Facsimile Section, Yokosuka Electrical Communication Laboratory, Nippon Telegraph and Telephone Public Corporation, 12356, Take, Yokosuka-shi, Kanagawa-ken, 238 Japan. ; Matsuki, Makoto ; Higuchi, Kazuhito

A new solid-state scanning ink jet recording technique, called slit jet recording, is proposed. This technique uses a recording head with one slitlike ink-issuing opening having a number of recording electrodes arrayed along a horizontal scanning direction. The ink is emitted from the ink-issuing opening due to the electrical potential difference between a driven recording electrode and a counterelectrode located behind the recording paper. The ink strikes the paper and forms a recording dot. Many recording electrodes can be driven simultaneously by video signals which enhance the total copy recording speed over that for conventional techniques using a single nozzle. The head of this ink jet recording apparatus is remarkably simple in construction and can be fabricated without difficulty. Improvements in reliability and maintainability can also be expected, as the simple structure of the ink-issuing opening reduces clogging and facilitates easy cleaning as compared with other equipment having a large number of nozzles. The recording principle and characteristics and ink-issuing characteristics are described, and the results of a trial recording are presented. The results show that an ISO A4 size (210 mm x 297 mm) full-color copy can be recorded in about 30 s at an 8-dot/ mm rate.

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Industry Applications, IEEE Transactions on  (Volume:IA-21 ,  Issue: 1 )