LIQUID EJECTION HEAD AND LIQUID EJECTION APPARATUS

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

This abstract first appeared for US patent application 20240262107 titled 'LIQUID EJECTION HEAD AND LIQUID EJECTION APPARATUS

The liquid ejection head described in the patent application includes an element substrate with an ejection port row containing arrayed ejection ports, an energy generation element for ejecting liquid, and a pressure chamber housing the energy generation element.

The ejection ports have protruding portions towards the center of the port.
The head features a liquid supply path for supplying liquid to the pressure chamber and a liquid collecting path for collecting liquid from the chamber.
The protruding portion of the ejection port is parallel to the flow direction of liquid in the pressure chamber.
The flow direction is the same in all pressure chambers and matches the moving direction of the receiving medium.
This design optimizes the ejection of liquid in a consistent and efficient manner.

Potential Applications: - Inkjet printers - 3D printing - Biomedical devices for precise liquid dispensing

Problems Solved: - Ensures accurate and reliable liquid ejection - Prevents clogging or misdirection of liquid flow

Benefits: - Improved printing quality - Enhanced precision in liquid dispensing - Reduced maintenance needs for liquid ejection systems

Commercial Applications: Title: Advanced Liquid Ejection Technology for Printing and Biomedical Devices This technology can revolutionize the printing industry by enhancing print quality and speed. It can also be utilized in biomedical devices for precise liquid dispensing in research and medical applications.

Questions about the Technology: 1. How does the design of the ejection ports contribute to the efficiency of liquid ejection? - The protruding portions of the ejection ports help direct the flow of liquid towards the center, ensuring accurate and consistent ejection.

2. What are the potential drawbacks of this liquid ejection head design? - One potential drawback could be the complexity of manufacturing and assembling the components, which may increase production costs.

Original Abstract Submitted

a liquid ejection head includes an element substrate provided with an ejection port row in which ejection ports are arrayed. the port includes a protruding portion protruding toward a center of the ejection port, an energy generation element configured to generate energy to eject liquid, and a pressure chamber including the energy generation element thereinside. the head has a liquid supply path for supplying liquid to the pressure chamber, and a liquid collecting path for collecting liquid from the pressure chamber. a direction in which the protruding portion protrudes is substantially parallel to a flow direction of liquid in the pressure chamber flowing from the liquid supply path to the liquid collecting path via the pressure chamber. the flow direction is same direction in the pressure chambers, and is same direction as a relative moving direction of a medium that receives liquid ejected from the liquid ejection head.