18476370. LIQUID EJECTION APPARATUS AND PRINT HEAD simplified abstract (SEIKO EPSON CORPORATION)

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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 18476370 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, a print head with a piezoelectric element, a pressure chamber substrate, a switch circuit, a wiring substrate, and a temperature detection portion.

  • The print head ejects liquid using a piezoelectric element that is driven by a first drive signal.
  • The pressure chamber substrate contains multiple pressure chambers that change volume due to deformation.
  • The switch circuit controls the supply of the first drive signal to the piezoelectric element.
  • The temperature detection portion monitors the temperature of the pressure chamber and sends this information to the control circuit.

Potential Applications

The technology described in this patent application could be used in inkjet printers, 3D printers, and other liquid ejection devices.

Problems Solved

This technology helps in controlling the ejection of liquid with precision and efficiency, ensuring accurate printing and deposition of materials.

Benefits

The benefits of this technology include improved print quality, reduced waste of liquid materials, and enhanced overall performance of liquid ejection devices.

Potential Commercial Applications

The potential commercial applications of this technology include industrial printing, biomedical research, and additive manufacturing.

Possible Prior Art

One possible prior art for this technology could be the use of piezoelectric elements in inkjet printers for precise liquid ejection.

Unanswered Questions

How does the temperature detection portion affect the performance of the liquid ejection apparatus?

The temperature detection portion helps in maintaining optimal operating conditions for the pressure chambers, but the specific impact on performance is not detailed in the abstract.

What is the significance of switching the supply of the first drive signal to the piezoelectric element?

The abstract mentions a switch circuit that controls the supply of the drive signal, but it does not explain the reason for this switching mechanism and its impact on the overall operation of the print head.


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.