Patent ID: 6325497
Filing Date: 2001-12-04
Classification: B41J

Abstract:
An ink-jet print head comprising:an actuator formed with a plurality of outer side inner walls, the plurality of outer side inner walls being arranged in two rows, each outer side inner wall on one row being spaced from a corresponding outer side inner wall on the other row at a predetermined distance, each outer side inner wall defining an ejection channel, the actuator having first and second end surfaces opposite to each other, the plurality of outer side inner walls extending between the first and second end surfaces, thereby defining two rows of ejection channels and allowing the ejection channels to be opened at both of the first and second end surfaces, the actuator selectively ejecting liquid ink from the opened ends of the ejection channels at the second end surface; anda manifold connected, at its one surface, to the first end surface of the actuator, the manifold having an ink supply channel opened on its surface connected to the actuator, the ink supply channel extending along the two rows of ejection channels in fluid communication therewith to supply liquid ink to the two rows of ejection channels, a width of the ink supply channel, defined on the surface where the manifold is connected to the actuator, being less than or equal to the predetermined distance.