18230299. LIQUID EJECTION HEAD AND PRINTING APPARATUS simplified abstract (CANON KABUSHIKI KAISHA)
Contents
LIQUID EJECTION HEAD AND PRINTING APPARATUS
Organization Name
Inventor(s)
AYAKO Maruyama of Kanagawa (JP)
LIQUID EJECTION HEAD AND PRINTING APPARATUS - A simplified explanation of the abstract
This abstract first appeared for US patent application 18230299 titled 'LIQUID EJECTION HEAD AND PRINTING APPARATUS
Simplified Explanation
The liquid ejection head described in the patent application is designed for liquid suction and wipe operations, allowing diaphragm plates to displace the proper amount of liquid with low drive voltage.
- First and second substrates are used in the liquid ejection head.
- Ejection ports for liquid are located on the first surface of the first substrate.
- Drive elements are situated on the second surface of the first substrate.
- The second substrate is attached to the second surface of the first substrate, creating pressure chambers that receive liquid.
- Pressure-chamber forming portions of the first substrate act as diaphragm plates.
- Liquid in the pressure chambers is ejected through the ejection ports when the diaphragm plates displace.
- The second surface of the first substrate is uneven, with lower rigidity in second regions surrounding the ejection port first regions.
- Potential Applications
- Inkjet printers - Medical devices for precise liquid dispensing - Laboratory equipment for controlled liquid handling
- Problems Solved
- Achieving proper liquid displacement with low drive voltage - Ensuring uniform ejection of liquid from the ejection ports - Providing a reliable and efficient liquid ejection system
- Benefits
- Low drive voltage requirement - Precise and controlled liquid ejection - Reliable operation for various applications
Original Abstract Submitted
Provided is a liquid ejection head being suitable for liquid suction and wipe operations and enabling diaphragm plates to achieve proper amounts of displacement with low drive voltage. The liquid ejection head includes first and second substrates. Ejection ports for ejecting liquid are provided at a flat first surface of the first substrate. Drive elements are provided on a second surface of the first substrate. The second substrate is joined to the second surface of the first substrate, forming pressure chambers configured to be supplied with liquid. Pressure-chamber forming portions of the first substrate form diaphragm plates. The liquid in the pressure chambers is ejected from the ejection ports upon displacement of the diaphragm plates. The second surface of the first substrate includes the drive elements and is uneven. In the diaphragm plate, second regions surrounding first regions provided with the ejection ports have lower rigidity than the first regions.
