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Liquid discharge head substrate, liquid discharge head and recording device

A liquid discharge head and liquid discharge technology, applied in printing devices, printing, etc.

Active Publication Date: 2019-09-27
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is known that, due to the fact, voltage drops of unequal magnitude occur in the individual liquid discharge elements

Method used

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  • Liquid discharge head substrate, liquid discharge head and recording device
  • Liquid discharge head substrate, liquid discharge head and recording device
  • Liquid discharge head substrate, liquid discharge head and recording device

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Experimental program
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Embodiment Construction

[0022] The inventors of the present invention found that, in a liquid discharge head substrate having grid-shaped wiring, the resistance value also varies between liquid discharge elements. Japanese Patent Laid-Open No. 2015-96318 does not consider the relationship between the unevenness of the resistance value and the arrangement of the power supply terminals.

[0023] A liquid discharge head substrate, a liquid discharge head having the liquid discharge head substrate, and a recording device according to exemplary embodiments will be described below with reference to the accompanying drawings. Although preferred exemplary embodiments will be described below, the present invention is not limited thereto but can be modified without departing from its spirit and scope.

[0024] The drawings are intended to show structures or configurations, and the sizes of illustrated components may differ from those of actual components. In the drawings, the same members or the same componen...

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Abstract

The present invention relates to a liquid discharge head substrate, a liquid discharge head, and a recording device. According to an aspect of the present disclosure, the liquid discharge head substrate includes a substrate having a parallelogram shape, a plurality of liquid discharge elements provided on the substrate, a plurality of power terminals provided along a first side of the substrate, and a plurality of power terminals connected to the plurality of power terminals. The first wiring has a lattice shape. On the substrate, the first side and the third side form an obtuse angle, and the first side and the fourth side form an acute angle. Among the plurality of power terminals, the number of power terminals at positions closer to the third side than the fourth side is greater than the number of power terminals at positions closer to the fourth side than the third side.

Description

technical field [0001] The present disclosure relates to a liquid discharge head semiconductor substrate, a liquid discharge head, and a recording device. Background technique [0002] On a liquid discharge head substrate in which power lines and ground lines are branched and arranged for a plurality of liquid discharge elements, the parasitic resistance values ​​of these lines for the respective liquid discharge elements vary. It is known that, due to this fact, unequal degrees of voltage drop occur in the individual liquid discharge elements. Japanese Patent Application Laid-Open No. 2015-96318 discusses a method for making the sum of the parasitic resistance values ​​of the power line and the sum of the parasitic resistance values ​​of the ground line equal to the sum of the parasitic resistance values ​​of the power line and the ground line in each liquid discharge element to reduce the parasitic resistance due to the power line and the ground line. The difference in th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41J2/01B41J2/14B41J2/175B41J29/393
CPCB41J2/14072B41J2/04543B41J2/04541B41J2/0458B41J2/1433B41J2002/14491
Inventor 高木诚
Owner CANON KK