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Liquid ejection substrate, liquid ejection head, and liquid ejection apparatus

A liquid ejecting head and liquid technology, which is applied in the directions of inking device and printing, etc., can solve the problem of not easy to densely arrange multiple ink channels, etc.

Active Publication Date: 2017-07-18
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in Japanese Patent No. 4722826 and Japanese Patent No. 5264000, the ink passages have complex shapes, so it is not easy to densely arrange a plurality of ink passages so that ink circulates through the pressure chamber corresponding to each of the densely arranged plural ejection ports

Method used

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  • Liquid ejection substrate, liquid ejection head, and liquid ejection apparatus
  • Liquid ejection substrate, liquid ejection head, and liquid ejection apparatus
  • Liquid ejection substrate, liquid ejection head, and liquid ejection apparatus

Examples

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no. 1 example

[0080] Figure 1 to Figure 10 It is an explanatory diagram showing the liquid ejection unit 300 according to the first embodiment of the present invention. Here, the liquid ejection unit 300 constitutes an inkjet print head, which is mounted on an inkjet printing apparatus as will be described later.

[0081] Such as figure 1 with figure 2 As shown, the liquid ejection unit 300 of this embodiment has a six-layered channel structure. The six-layered channel structure includes an orifice plate 21, a first channel layer 22, a second channel layer 23, a third channel layer 24, and a fourth channel layer. 25. The fifth channel layer 26 and the sixth channel layer 27. The first channel layer 22 is provided with an ejection energy generating element 12 that generates ejection energy for ejecting ink as a liquid, and therefore can eject the ink inside the pressure chamber 13 from the ejection port 11 of the orifice plate 21 by the ejection energy. . When the ink inside the pressure ch...

no. 2 example

[0163] Picture 11 with Picture 12 It is an explanatory diagram showing a liquid ejection unit 300 according to the second embodiment of the present invention, the same description as the above-mentioned embodiment will be omitted, and the same reference numerals are given the same description as the above-mentioned embodiment. Picture 11 Is an exploded perspective view showing the liquid ejection unit 300, Picture 12 It is an exploded plan view showing the liquid ejection unit 300.

[0164] In this embodiment, the first common supply channel 17 and the second common supply channel 32 communicate with each other at one end side of the ejection port array 16, and the first common recovery channel 18 and the second common recovery channel 33 are at the other end. The sides are connected to each other. In this embodiment, since the third channel layer 24 of the first embodiment is not provided and the first recovery port 31 of the first embodiment can be omitted, the structure of ...

no. 3 example

[0166] Figure 13 with Figure 14 It is an explanatory diagram showing a third embodiment according to the present invention, the same description as the above-mentioned embodiment will be omitted, and the same reference numerals are given the same description as the above-mentioned embodiment. Figure 13 Is an exploded perspective view showing the liquid ejection unit 300, Figure 14 It is an exploded plan view showing the liquid ejection unit 300.

[0167] In this embodiment, at one end side of the ejection port array 16, the first common supply passage 17 and the first supply port 30 communicate with each other and the first common recovery passage 18 and the first recovery port 31 communicate with each other. Similarly, at the other end side of the ejection port array 16, the first common supply passage 17 and the first supply port 30 communicate with each other and the first common recovery passage 18 and the first recovery port 31 communicate with each other. When the first ...

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PUM

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Abstract

A liquid ejection substrate, a liquid ejection head, and a liquid ejection apparatus are provided; the liquid ejection substrate comprises an ejection port used for ejecting liquid, an ejection energy forming element used for forming liquid ejection energy, and a pressure chamber having the ejection energy forming element; the liquid ejection substrate comprises a first portion and a second portion, wherein the first and second portions mutually get away from each other along the liquid ejection substrate thickness direction; the first portion is provided with supply channels arranged on one side of the pressure chamber and used for supplying the liquid to the pressure chamber, and retrieve channels arranged on the other side of the pressure chamber so as to retrieve liquid from the pressure chamber; the second portion is provided with a common supply channel connected with the plurality of supply channels and a common retrieve channel connected with the plurality of the receive channels.

Description

Technical field [0001] The present invention relates to a liquid ejection substrate, a liquid ejection head, and a liquid ejection apparatus for ejecting various liquids including ink. Background technique [0002] For example, in an inkjet print head capable of selectively ejecting ink from a plurality of ejection ports, the ejection ports need to be arranged densely in order to print high-quality images with high accuracy. In addition, since the ink thickens due to the evaporation of moisture in the ink from the ejection ports, it is necessary to provide countermeasures that affect high-quality printing operations. [0003] To cope with this demand, Japanese Patent No. 4722826 discloses a method of circulating ink through a pressure chamber so that the thickened ink inside the pressure chamber communicating with the ejection port does not stay therein. Japanese Patent No. 4722826 discloses a configuration in which a member having a curved ink passage is formed by extruding alumi...

Claims

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Application Information

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IPC IPC(8): B41J2/01B41J2/18
CPCB41J2/01B41J2/18B41J2002/14459B41J2002/14467B41J2202/12B41J2/045B41J2/1707B41J2/175B41J2/14
Inventor 奧岛真吾刈田诚一郎青木孝纲永井议靖驹宫友美
Owner CANON KK