Recorders – Performance of multiple functions of steam and gas engines – Pressure responsive element
Patent
1988-08-11
1989-08-01
Deboer, Todd E.
Recorders
Performance of multiple functions of steam and gas engines
Pressure responsive element
346 76PH, G01D 1510
Patent
active
048537071
ABSTRACT:
A non-impact electrothermic recording method using an ink sheet comprising at least an electroconductive base layer, an electroconductive thin layer and an electroconductive image transfer ink layer, with the effective resistance of the ink sheet being in the range of from 50.OMEGA. to 20 K.OMEGA., is disclosed which is carried out by superimposing the ink sheet on a recording medium and applying between an recording electrode and a return electrode situated in contact with the ink sheet (i) image-delineating voltage signals with a fixed application time, with the voltage of the image-delineating signals changed in accordance with the image density of images to be reproduced on the recording medium, or (ii) image-delineating voltage signals with a fixed voltage, with the application time changed in accordance with the image density of images to be reproduced on the recording medium, so as to generate Joule's heat in the portions in the ink sheet immediately below the recording electrode; and transferring the electroconductive thermal-transferable ink material from the ink sheet to the recording medium.
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IBM Technical Disclosure Bulletin, vol. 18, No. 8 (Jan. 1976), "Thermal Transfer Printer Employing Special Ribbons Heated With A Current Pulse".
Kawanishi Toshiyuki
Tabata Yukio
Deboer Todd E.
Ricoh & Company, Ltd.
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