Incremental printing of symbolic information – Ink jet – Ejector mechanism
Patent
1997-02-03
1999-06-15
Le, N.
Incremental printing of symbolic information
Ink jet
Ejector mechanism
347 68, B41J 204, B41J 2045
Patent
active
059126841
ABSTRACT:
An inkjet head comprising a nozzle, an ink passage in communication with the nozzle, a diaphragm provided at one part of the ink passage, and an electrode provided in opposition to the diaphragm whereby an electrical pulse is applied between the diaphragm and electrode to deform the diaphragm by means of electrostatic force, thereby ejecting ink droplets from the nozzle. The actuator contains at least a vibration chamber formed by the diaphragm and electrode, and is sealed or made airtight with the volume V so that the ratio between the actuator volume V and the volume .DELTA.V eliminated by a distortion of the diaphragm during ink-jet head drive is within the range 2.ltoreq.V/.DELTA.V.ltoreq.8.
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Atobe Mitsuro
Fujii Masahiro
Hagata Tadaaki
Kamisuki Shinichi
Koeda Hiroshi
Janofsky Eric B.
Le N.
Nguyen Thinh
Seiko Epson Corporation
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