
US Patent No: 5,513,431
Number of patents in Portfolio can not be more than 2000
Method for producing the head of an ink jet recording apparatus
Stats
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May 7, 1996
Issued date -
Jun 14, 1994
filing date -
08/259,554
serial no -
In Force
status
Importance
Abstract
An ink-jet recording apparatus includes an ink-jet head which includes a plurality of nozzle openings, a plurality of independent ejection chambers respectively correspondingly communicatd with the nozzle openings, diaphragms respectively correspondingly formed in the ejection chambers partly on at least one side walls of the ejection chambers, a plurality of driving elements for respectively correspondingly driving the diaphragms, and a common ink cavity for supplying ink to the plurality of ejection chambers, so that upon application of electric pulses to the plurality of driving means, the driving elements respectively correspondingly distort the diaphragms in the direction of increasing the respective pressures in the ejection chambers to eject ink drops from the nozzle openings onto recording paper, wherein the respective driving elements are constituted by electrodes for respectively correspondingly distorting the diaphragms by electrostatic force, the electrodes being formed on a substrate.
First Claim
Related Publications
International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 4,203,128 Electrostatically deformable thin silicon membranes | 75 | 1978 | |
| 4,234,361 Process for producing an electrostatically deformable thin silicon membranes utilizing a two-stage diffusion step to form an etchant resistant layer | 26 | 1979 | |
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| 4,725,851 Method and assembly for mounting fluid-jet orifice plate | 14 | 1986 | |
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| 5,163,177 Process of producing ink jet recording head and ink jet apparatus having the ink jet recording head | 49 | 1990 | |
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| 4,312,008 Impulse jet head using etched silicon | 45 | 1979 | |
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| 4,733,447 Ink jet head and method of producing same | 22 | 1985 | |
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| 4,520,375 Fluid jet ejector | 41 | 1983 | |