Ink-jet print head having electrohydrodynamic pump and method for supplying ink to ink chamber

摘要

This method of electrical hydrodynamic pump supplying ink to the ink jet print head and an ink chamber provided with a start The. Disclosed an ink jet print head, and ink supply manifold, and the ink chamber having a substantially hemispherical shape, the ink channel for supplying ink from the manifold to the ink chamber is formed integrally with the substrate; The substrate is laminated on a position corresponding to the ink chamber and the nozzle is formed, at a position corresponding to the ink channel grooves for forming the ink channel formed nozzle plate; Is provided on the nozzle plate, is formed in an annular heater surrounding the nozzle; Is provided on the nozzle plate, the heater electrode for applying a current to the heater; Provided with a; and along the feed direction of the ink on the nozzle plate of the ink channel top is arranged at a predetermined distance from each other, a plurality of electric field forming electrodes to pump the ink into electrical hydrodynamic by forming the electric field in the ink channel progress . According to this invention, is able to satisfy the various requirements of the print head, in particular the feed rate of the ink through the ink channel, the greater the faster the drive frequency of the print head.