Title:
PASSAGE MEMBER AND LIQUID DISCHARGE HEAD
Document Type and Number:
Japanese Patent JP2023044120
Kind Code:
A
Abstract:
To provide a passage member which can inhibit a passage formed at a substrate from being clogged by an adhesive, and to provide a liquid discharge head using the passage member.SOLUTION: A passage member 116 has: a first substrate 21 in which a passage 11 is formed from a first surface 111; and a second substrate 22 having a second surface 112. An adhesive 13 is placed in a space between the first surface 111 and the second surface 112 to join the first substrate 21 and the second substrate 22 to each other. When the passage 11 is viewed from a direction orthogonal to the first surface 111, the passage 11 has a polygonal shape including corner parts. The passage 11 has: a first portion 113 located at the first surface side; and a second portion 114 communicating with the first portion 113. An opening area of the second portion 114 is larger than an opening area of the first portion 113, and the adhesive exists at a step surface 33 between the first portion 113 and the second portion 114 and the corner parts.SELECTED DRAWING: Figure 1
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Inventors:
KATO MASATAKA
Application Number:
JP2021151988A
Publication Date:
March 30, 2023
Filing Date:
September 17, 2021
Export Citation:
Assignee:
CANON KK
International Classes:
B41J2/14; B41J2/16
Attorney, Agent or Firm:
Takuma Abe
Sougo Kuroiwa
Sougo Kuroiwa