Incremental printing of symbolic information – Ink jet – Ejector mechanism
Patent
1993-12-01
1997-04-01
Fuller, Benjamin R.
Incremental printing of symbolic information
Ink jet
Ejector mechanism
310328, 310330, B41J 2045
Patent
active
056171277
ABSTRACT:
An actuator including a ceramic substrate and at least one piezeoelectric/electrostrictive element formed on the substrate is disclosed. The ceramic substrate includes a spacer plate having at least one window which provides at least one pressure chamber, each window being substantially closed by a closure plate and a connecting plate. The spacer plate, closure plate and connecting plate are formed from respective ceramic green sheets which are laminated on each other and fired into an integral ceramic structure as the ceramic substrate. The connecting plate has at least one slit which corresponds to each pressure chamber. Each piezoelectric/electrostrictive element is disposed on a portion of the closure plate defining the corresponding pressure chamber, so as to change a pressure of the corresponding pressure chamber. Also disposed is an ink jet print head using the actuator as described above.
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Patent Abstracts of Japan, vol. 7, No. 215 (M-244) (1360) Sep. 22, 1983 & JP-A-58 108 164 (Epuson K.K.) Jun. 28, 1983.
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Masumori Hideo
Takahashi Nobuo
Takeuchi Yukihisa
Dickens Charlene
Fuller Benjamin R.
NGK Insulators Ltd.
Seiko Epson Corporation
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