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Liquid ejecting unit and liquid ejecting apparatus

A liquid jet head, liquid technology, applied in printing and other directions, can solve problems such as retained bubbles

Inactive Publication Date: 2011-11-23
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the film on the flow path is wrinkled, air bubbles may remain in the wrinkled part

Method used

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  • Liquid ejecting unit and liquid ejecting apparatus
  • Liquid ejecting unit and liquid ejecting apparatus
  • Liquid ejecting unit and liquid ejecting apparatus

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Embodiment Construction

[0037] Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings and the like. In the embodiments described below, various limitations are made as preferred specific examples of the present invention. However, the scope of the present invention is not limited to these specific examples unless the description of the present invention is particularly limited in the following description. In addition, in the present embodiment, as an example of the liquid ejecting head, an ink jet recording head (hereinafter referred to as a "recording head") mounted in an ink jet recording apparatus, which is a type of liquid ejecting apparatus, is exemplified. Be explained.

[0038] figure 1 indicates that the ink ejection unit 10 ( figure 2 ) is a plan view of the structure of an ink jet recording apparatus (hereinafter referred to as a printer). The exemplified printer 1 is an apparatus that records images and the like by ejecting ...

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Abstract

The invention provides a liquid ejecting unit and a liquid ejecting apparatus that can prevent the film of the damper flow passage member from wrinkling. In a surface of a damper flow passage member covered with a film, a communication passage, a first filter chamber in which a first filter is disposed, and an empty chamber disposed between a pressure chamber and the communication passage are provided. The film is attached to a surface of each of the pressure chamber, the empty chamber, and the communication passage so as to cover a first flow passage and a second flow passage with the empty chamber therebetween. In a region of the film facing the empty chamber, a weak portion is formed that permits the stretching of the film.

Description

technical field [0001] The present invention relates to a liquid ejecting unit and a liquid ejecting apparatus including a liquid ejecting head such as an ink jet recording head. Background technique [0002] As the liquid ejecting head that ejects liquid droplets from nozzles by causing pressure fluctuations in the liquid in the pressure chamber, there are liquid ejecting heads such as those used in ink jet recording apparatuses (hereinafter, Inkjet recording heads (hereinafter, single-finger recording heads) of image recording apparatuses such as single-finger printers), color material jet heads used in the manufacture of color filters such as liquid crystal displays, and organic EL (Electro Luminescence) displays , Electrode material ejection heads used in electrode formation of FEDs (surface-emitting displays), etc., bio-organic substance ejection heads used in biochip (biochemical element) manufacturing, and the like. [0003] For example, in the above-described record...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J2/01
CPCB41J2/055B41J2002/14403B41J2/175
Inventor 小口智长手彻
Owner SEIKO EPSON CORP
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