Seiko epson corporation (20240109304). LIQUID EJECTION APPARATUS AND PRINT HEAD simplified abstract

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LIQUID EJECTION APPARATUS AND PRINT HEAD

Organization Name

seiko epson corporation

Inventor(s)

Sukehiro Ito of Matsumoto (JP)

Masayuki Kawakami of Matsumoto (JP)

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

This abstract first appeared for US patent application 20240109304 titled 'LIQUID EJECTION APPARATUS AND PRINT HEAD

Simplified Explanation

The liquid ejection apparatus described in the patent application includes a control circuit, a first drive signal output circuit, and a print head with a piezoelectric element that ejects liquid. The apparatus also features a pressure chamber substrate with multiple pressure chambers, a switch circuit to control the drive signal supply, a wiring substrate with the switch circuit, and a temperature detection portion for monitoring the temperature of the pressure chamber.

  • Piezoelectric element driven by first drive signal
  • Pressure chamber substrate with multiple chambers
  • Switch circuit controls drive signal supply
  • Temperature detection portion monitors pressure chamber temperature

Potential Applications

The technology described in the patent application could be used in inkjet printers, 3D printers, and other liquid ejection systems where precise control of liquid ejection is required.

Problems Solved

This technology solves the problem of maintaining consistent liquid ejection performance by monitoring and adjusting the temperature of the pressure chamber.

Benefits

The benefits of this technology include improved print quality, reduced clogging or misfiring of the print head, and overall increased reliability of the liquid ejection system.

Potential Commercial Applications

  • Inkjet printers with enhanced performance
  • 3D printers with improved liquid ejection accuracy

Possible Prior Art

One possible prior art for this technology could be existing inkjet printer systems that use piezoelectric elements for liquid ejection but do not have temperature monitoring and control features.

Unanswered Questions

How does the temperature detection portion communicate with the control circuit?

The temperature detection portion likely communicates with the control circuit through wired connections or a wireless communication protocol.

What is the expected lifespan of the pressure chamber substrate in this liquid ejection apparatus?

The expected lifespan of the pressure chamber substrate would depend on factors such as usage frequency, liquid properties, and maintenance practices. Regular maintenance and proper care could extend the lifespan of the substrate.


Original Abstract Submitted

a liquid ejection apparatus includes a control circuit that outputs a control signal, a first drive signal output circuit that outputs a first drive signal, and a print head that ejects a liquid, in which the print head includes a piezoelectric element that is driven by receiving the first drive signal, a pressure chamber substrate that is provided with a plurality of pressure chambers of which volumes change due to deformation, a switch circuit that switches whether or not to supply the first drive signal to the piezoelectric element, a wiring substrate that is provided with the switch circuit, and a temperature detection portion that detects temperature information of the first pressure chamber, and the temperature information detected by the temperature detection portion is input to the control circuit in a period in which a voltage value of the first drive signal is constant.