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Liquid ejection head and liquid ejection device

一种液体喷射头、喷射喷嘴的技术，应用在印刷等方向，能够解决难以确保流动路径构件平面性等问题

Active Publication Date: 2021-03-05
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, if an injection molded article (especially a long one) is used as a flow path member, it tends to warp a lot after molding
In such a case, if the packing seal is applied to joints for fluid connection between long flow path members and pressure control units, etc., it tends to become difficult to secure the flow path member planarity required to maintain sufficient sealing performance

Method used

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  • Liquid ejection head and liquid ejection device
  • Liquid ejection head and liquid ejection device
  • Liquid ejection head and liquid ejection device

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Embodiment Construction

[0013] Now, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0014] Embodiments of the present invention will be described below with reference to the drawings. However, the following description is not intended to limit the scope of the present invention. In contrast, the present invention adopts a thermal method as an example to eject liquid by forming air bubbles using a heating element, but the present invention is also applicable to a liquid ejection head employing a piezoelectric method or any of various other liquid ejection methods.

[0015] It should be noted that the liquid ejection head according to the present invention suitable for discharging liquid such as ink and the liquid ejection apparatus equipped with the liquid ejection head can be applied to word processing such as printers, copiers, facsimiles with communication systems, and printing units. device and the like. In addition, the p...

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Abstract

The present invention relates to a liquid ejection head and a liquid ejection device. The liquid ejection head includes: a liquid ejection unit (330) adapted to eject liquid; a liquid supply unit (220) provided with a liquid supply flow path adapted to supply liquid to the liquid ejection unit; and first and second pressure a control unit (230) fixed to the liquid supply unit and adapted to control the pressure in the liquid supply flow path, wherein the first and second pressure control units are shorter in longitudinal length than the liquid supply unit, and the first and second The two pressure control units are arranged to be partially or completely staggered from each other in the longitudinal direction of the liquid supply unit.

Description

technical field [0001] The present invention relates to a liquid ejection head and a liquid ejection device. Background technique [0002] In recent years, there has been a demand for a liquid ejection device capable of high-speed and high-precision liquid ejection. In particular, it is expected that an inkjet recording device (an example of a liquid ejecting device adapted to image formation by ejecting a liquid) can provide high-speed and high-quality recording on plain paper rivaling that of an electrophotographic recording device. In order to perform high-speed and high-quality recording on plain paper, the liquid ejecting device disclosed in U.S. Patent Application Publication No. 2017 / 050445 has a long-line type (page width type) liquid ejecting head, in which a plurality of recording element substrates (ejecting Chips) are arranged along the arrangement direction of a plurality of ejection nozzles in each recording element substrate. In a line type liquid ejection h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41J2/14
CPCB41J2/14B41J2/175B41J2/18B41J2/155B41J2/14016B41J2/1623B41J2/2103B41J2/0458
Inventor 吉居和哉久保浩一锅岛直纯近藤壮至永井议靖
Owner CANON KK
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