20240042763. LIQUID EJECTION HEAD AND INKJET RECORDING APPARATUS simplified abstract (CANON KABUSHIKI KAISHA)

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LIQUID EJECTION HEAD AND INKJET RECORDING APPARATUS

Organization Name

CANON KABUSHIKI KAISHA

Inventor(s)

HIROAKI Kusano of Tokyo (JP)

JUNICHIRO Iri of Kanagawa (JP)

LIQUID EJECTION HEAD AND INKJET RECORDING APPARATUS - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240042763 titled 'LIQUID EJECTION HEAD AND INKJET RECORDING APPARATUS

Simplified Explanation

The abstract describes a liquid ejection head that includes a channel member, an ejection substrate, and a sealing member. The ejection substrate is located in a recess of the channel member and has a row of nozzles. The sealing member, filled with a thermosetting resin, is located upstream of the ejection substrate. It consists of a first sealing portion with a resin near the bottom surface of the recess and a second sealing portion with a resin near the ejection surface of the substrate. The first resin has a lower coefficient of linear expansion and a higher specific gravity compared to the second resin.

  • The liquid ejection head includes a channel member, ejection substrate, and sealing member.
  • The ejection substrate is positioned in a recess of the channel member and has a row of nozzles.
  • The sealing member, filled with a thermosetting resin, is located upstream of the ejection substrate.
  • The sealing member consists of a first sealing portion with a resin near the bottom surface of the recess.
  • The sealing member also includes a second sealing portion with a resin near the ejection surface of the substrate.
  • The first resin has a lower coefficient of linear expansion than the second resin.
  • The first resin also has a higher specific gravity than the second resin.

Potential applications of this technology:

  • Inkjet printers and other printing devices that require precise liquid ejection.
  • Industrial equipment that utilizes liquid ejection, such as coating machines or 3D printers.

Problems solved by this technology:

  • Ensures a reliable and consistent seal between the ejection substrate and the channel member.
  • Reduces the risk of leakage or damage to the liquid ejection system.
  • Minimizes the impact of thermal expansion and contraction on the sealing performance.

Benefits of this technology:

  • Improved durability and longevity of the liquid ejection head.
  • Enhanced printing quality and accuracy due to a stable and consistent liquid ejection.
  • Reduced maintenance and downtime as a result of a reliable sealing mechanism.


Original Abstract Submitted

a liquid ejection head includes: a channel member; an ejection substrate being disposed in a recess of the channel member and having a nozzle row of nozzles arranged in a first direction; and a sealing member having a thermosetting resin filled in a predetermined space defined by side and bottom surfaces of the recess and a side surface of the ejection substrate and located upstream of the ejection substrate in a second direction. the sealing member includes: a first sealing portion having a first resin located near the bottom surface of the predetermined space; and a second sealing portion having a second resin located near an ejection surface of the ejection substrate. a coefficient of linear expansion of the first resin is less than that of the second resin, and a specific gravity of the first resin is greater than that of the second resin.

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