Liquid discharge head, method for manufacturing such head,...

B - Operations – Transporting – 41 – J

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Details

B41J 2/16 (2006.01) B23K 26/18 (2006.01) B23K 26/38 (2006.01) B41J 2/14 (2006.01)

Patent

CA 2255405

The present invention provides a method for manufacturing a liquid discharge head comprising a top plate including a plurality of ink discharge ports for discharging ink droplet, a plurality of first liquid passages for supplying ink in correspondence to the plurality of ink discharge ports and a common liquid chamber for supplying the ink to the first liquid passages, a liquid discharge head substrate obtained by forming second liquid passages arranged adjacent to the first liquid passages and including bubble generating areas on a substrate on which a plurality of heat generating elements for causing the ink discharge port to discharge the ink droplets and including drivers for driving the heat generating elements, and a movable diaphragm for completely isolating the first liquid passages and the second liquid passages from each other and displaceable by a bubble generated on the heat generating element, wherein the method comprises a movable diaphragm forming step for providing the movable diaphragm in such a manner that a portion for fixing the movable diaphragm is covered. The present invention further provides such a liquid discharge head and a liquid discharging apparatus having such a liquid discharge head.

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