Liquid ejecting head and liquid ejecting apparatus

By employing a first substrate and a second substrate in the liquid jet head, and by using support members and a frame to enhance the substrate structure, the problems of ion migration of electrical wiring components and easy breakage of the substrate caused by densely arranged energy generating elements are solved, thus achieving high reliability and stability of the liquid jet head.

CN116890527BActive Publication Date: 2026-07-10CANON KK
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CANON KK
Filing Date
2023-03-27
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

In liquid jetting devices, the dense arrangement of energy-generating elements causes ion migration in electrical wiring components, reducing electrical reliability, and the thin substrate is prone to cracking, affecting structural reliability.

Method used

The system employs a first substrate and a second substrate. The first substrate has a raised area to accommodate terminals. Support members are fixed to a frame to enhance the substrate structure. The combination of support members and a frame improves the mechanical strength and electrical connection reliability of the substrate.

Benefits of technology

This improves the structural reliability of the liquid jet head, prevents substrate breakage, enhances electrical connection stability, and ensures high-efficiency jetting performance.

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Abstract

A liquid ejecting head and a liquid ejecting apparatus are disclosed, with the aim of improving the structural reliability of the liquid ejecting head. To this end, the liquid ejecting head includes a first substrate having an ejection port, a liquid chamber, and an energy generating element, and a second substrate connected to a second surface of the first substrate opposite to a first surface thereof. The first substrate includes a raised region raised from an end portion of the second substrate in a planar direction perpendicular to a first axial direction (z-axis direction). A terminal to be electrically connected to the energy generating element is provided at the second surface of the raised region. A support member (401) is connected to the first surface of the first substrate, has an opening at a position opposite to a position at which the ejection port is formed, and is fixed to a frame.
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