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Liquid ejection device, liquid ejection head, and liquid supply method

A technology of liquid ejection head and liquid supply, which is applied in printing and other directions, and can solve problems such as inability to generate differential pressure

Active Publication Date: 2019-11-05
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the case where errors occur in the resistances set for the respective supply paths and recovery paths or the resistances vary over time (hereinafter, these errors from the set values ​​will be referred to as "tolerances"), a predetermined differential pressure cannot be generated.

Method used

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  • Liquid ejection device, liquid ejection head, and liquid supply method
  • Liquid ejection device, liquid ejection head, and liquid supply method
  • Liquid ejection device, liquid ejection head, and liquid supply method

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Embodiment Construction

[0039] Hereinafter, embodiments and embodiments to which the present invention is applied will be described with reference to the drawings. In addition, the liquid ejection head ejecting liquid such as ink and the liquid ejection apparatus mounting the liquid ejection head according to the present invention can be applied to printers, copiers, and facsimile machines with communication systems, word processors with printers, and Industrial printing unit combined with various processing equipment. For example, liquid ejection heads and liquid ejection devices can be used to manufacture biochips or print electronic circuits.

[0040] In addition, since the embodiments to be described below are specific examples of the present invention, various technical limitations are imposed on them. However, the embodiments of the present invention are not limited to the embodiments of the description or other specific methods, and changes may be made to the embodiments of the present invent...

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Abstract

Liquid ejection device, liquid supply method in the liquid ejection device, and liquid ejection head. A liquid ejection apparatus that uses a liquid ejection head and ejects liquid from the liquid ejection head, the liquid ejection apparatus including: a liquid supply unit having a mechanism for supplying liquid to the liquid ejection head A supply flow path and a recovery flow path for recovering liquid from the liquid ejection head, the liquid supply unit generates a pressure difference between a liquid pressure in the supply flow path and a liquid pressure in the recovery flow path. supply and recovery liquid; and a flow resistance adjustment unit provided in the supply flow path and / or the recovery flow path.

Description

technical field [0001] The present invention relates to a liquid ejection device, a liquid ejection head, and a liquid supply method, and more particularly, to a liquid supply mechanism that supplies liquid to a flow path in a liquid ejection head by creating a pressure difference between a supply side and a recovery side. Background technique [0002] Japanese Patent Laid-Open No. 2014-141032 describes generation of a liquid flow in a liquid flow path communicating with an ejection port of a liquid ejection head, in which an energy generating element is provided. In this way, for example, liquid (ink) with increased viscosity in the vicinity of the ejection port is discharged, preventing deterioration of ejection characteristics. In Japanese Patent Laid-Open No. 2014-141032, two types of pressure regulating tanks whose control pressures are set to be different from each other are used respectively in the liquid supply flow path and the recovery flow path in the liquid eject...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41J2/045
CPCB41J2/045
Inventor 山田和弘岩永周三刈田诚一郎青木孝纲奥岛真吾山本辉为永善太郎永井议靖森达郎斋藤昭男
Owner CANON KK