Liquid discharge apparatus and method for manufacturing liquid discharge apparatus

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United States of America Patent

PATENT NO 9199459
APP PUB NO 20150202873A1
SERIAL NO

14601797

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Abstract

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There is provided a liquid discharge apparatus including a channel structure in which liquid channels including pressure chambers and nozzles are formed and a piezoelectric actuator including a piezoelectric layer arranged on the channel structure to cover the pressure chambers. Two grooves are formed in the piezoelectric layer to locate on two sides of each pressure chamber in an array direction. There is an equal separation distance between the two grooves arranged on the two sides of the pressure chamber. X means positions of the grooves from an edge of the pressure chamber in the array direction, and Xc means an center position between the edge of the pressure chamber to the edge of an adjacent other pressure chamber in the array direction. The positions X of the grooves satisfy 0.2Xc−20 μm≦X≦0.6Xc+20 μm.

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Patent Owner(s)

  • BROTHER KOGYO KABUSHIKI KAISHA

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Suzuki, Yoshihumi Ena, JP 28 253

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