| 摘要 |
Provided is a spray device of an inkjet printer, made up of a plurality of individual electrodes formed on an oxide layer SiO2 on a silicon substrate and having a predetermined portion wetted with an ink to generate bubbles in the ink with the remaining portion serving as an insulating layer; a nozzle plate made of a plurality of openings for spraying an ink onto media, conductive layers surrounding the openings, and insulating layers covering the conductive layers, the nozzle plate being separated from the plurality of individual electrodes, and formed on different layers, the nozzle plate having a predetermined portion wetting with the ink and serving as a common electrode to generate bubbles in the ink with electrical energy supplied from the individual electrodes; a barrier for serving as a guiding wall, which electrically separates the portion wetting with the ink in the individual electrodes from the adjacent individual electrodes and supplies the ink transmitted from an ink via through an ink channel to an ink chamber; an ink chamber for receiving the ink through the barrier and generating bubbles with the current density between the individual electrodes and the nozzle plate; and electrical connecting means for supplying electrical energy to the individual electrodes and the nozzle plate.
|
