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Liquid discharge apparatus and method for manufacturing the same

  • US 9,701,118 B2
  • Filed: 02/25/2016
  • Issued: 07/11/2017
  • Est. Priority Date: 02/25/2015
  • Status: Active Grant
First Claim
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1. A liquid discharge apparatus configured to discharge a liquid onto a medium comprising:

  • a liquid discharge head including;

    an upper substrate including a plurality of first pressure chambers aligned in a first direction, a plurality of second pressure chambers aligned in the first direction, and a plurality of contacts, the plurality of second pressure chambers being arranged between the plurality of first pressure chambers and the plurality of contacts in a second direction orthogonal to the first direction;

    a plurality of piezoelectric elements arranged at positions of the upper substrate corresponding to the plurality of first pressure chambers and the plurality of second pressure chambers;

    an intermediate substrate including a first manifold communicated with the first pressure chambers and a second manifold communicated with the second pressure chambers;

    a lower substrate including a plurality of first nozzles communicated with the first pressure chambers and a plurality of second nozzles communicated with the second pressure chambers; and

    a plurality of individual traces arranged on the upper substrate and electrically connecting the plurality of contacts and the plurality of piezoelectric elements respectively,wherein the upper substrate includes a first end and a second end which are both ends in the second direction, and the plurality of first pressure chambers and the plurality of second pressure chambers are located between the first end and the second end in the second direction,wherein the intermediate substrate includes a third end and a fourth end which are both ends in the second direction, and the first manifold and the second manifold are located between the third end and the fourth end in the second direction,wherein the lower substrate includes a fifth end and a sixth end which are both ends in the second direction, and the plurality of first nozzles and the plurality of second nozzles are located between the fifth end and the sixth end in the second direction,wherein a first distance, of the intermediate substrate, between the third end and the fourth end in the second direction is longer than a second distance, of the upper substrate, between the first end and the second end in the second direction, andwherein a third distance, of the lower substrate, between the fifth end and the sixth end in the second direction is smaller than the first distance.

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