Patent ID: 7475968
Filing Date: 2009-01-13
Classification: B41J

Abstract:
1. An ink-jet head having a front side and a rear side, the ink-jet head comprising: a plurality of driving walls which are made of piezo-electric elements and positioned at preset intervals in a preset direction, ink channels each of which is sandwiched by the plurality of driving walls to store ink and has an outlet on the front side and an inlet on the rear side in the preset direction, driving electrodes each of which is formed on an inner wall surface of one of the driving walls, connecting electrodes each of which is electrically connected to a respective one of the driving electrodes at the rear side, a printed circuit board which covers a rear part of the ink channels, wiring electrodes each of which is provided on the printed circuit board and electrically connected to a related one of the connecting electrodes, and a common ink chamber which is formed along the preset direction on the printed circuit board to supply ink to the ink channels.