Title:
LIQUID DISCHARGE HEAD AND MANUFACTURING METHOD OF THE SAME
Document Type and Number:
Japanese Patent JP2022081996
Kind Code:
A
Abstract:
To provide a liquid discharge head which enables improvement of filling performance of a sealant even if the sealant has a relatively high viscosity while inhibiting unwanted spreading of the sealant which seals electric connection parts.SOLUTION: A liquid discharge head 10 includes: a recording element substrate 3 which discharges a liquid; an electric wiring substrate 5 electrically connected to the recording element substrate 3; a support member 2 having a recessed part 21 which houses the recording element substrate 3; and a sealant 8 which seals electric connection parts 31, 51 between the recording element substrate 3 and the electric wiring substrate 5. The support member 2 has protrusion parts 12 protruding from a bottom surface 23 of the recessed part 21. Each protrusion part 12 is arranged close to the electric connection parts 31, 51, and a cutout part 13 which is open on an upper surface and a side surface of the protrusion part 12 is formed at the protrusion part 12. An opening of the cutout part 13 on the side surface of the protrusion part 12 is oriented in a direction of an area, which is located adjacent to the electric connection parts 31, 51, of a gap between a side surface 24 of the recessed part 21 and the recording element substrate 3. The sealant 8 fills a space ranging from the inner side of the cutout part 13 to the area of the gap.SELECTED DRAWING: Figure 3
Inventors:
OHIRA MASATOSHI
Application Number:
JP2020193277A
Publication Date:
June 01, 2022
Filing Date:
November 20, 2020
Export Citation:
Assignee:
CANON KK
International Classes:
B41J2/16; B41J2/14
Attorney, Agent or Firm:
Akio Miyazaki
Masaaki Ogata
Masaaki Ogata
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