Title:
LIQUID DISCHARGE HEAD, MANUFACTURING METHOD OF THE LIQUID DISCHARGE HEAD, AND IMAGE FORMING DEVICE
Document Type and Number:
Japanese Patent JP2021075005
Kind Code:
A
Abstract:
To provide a liquid discharge head which can suppress obstruction to liquid supply to a recording element substrate caused by a narrowed liquid flow passage.SOLUTION: A liquid discharge head includes: a recording element substrate which discharges liquid; an electric wiring board which is electrically connected to the recording element substrate; a support member which has a recessed part which stores the recording element substrate and an electric connection part of the recording element substrate and electric wiring board and has an adhesion surface to which a rear surface of the recording element substrate is adhered; a sealant which seals the electric connection part; and a wall part which is formed of an adhesive to fill between an inner wall surface of the recessed part and a side surface of the recording element substrate so as to partition the recessed part into a sealed area in which the electric connection part is sealed by the sealant and a non-sealed area other than the sealed area. The rear surface of the recording element substrate is not adhered to the recessed part in an area adjacent to the wall part.SELECTED DRAWING: Figure 3
Inventors:
FUJII TATSUNORI
Application Number:
JP2019204792A
Publication Date:
May 20, 2021
Filing Date:
November 12, 2019
Export Citation:
Assignee:
CANON KK
International Classes:
B41J2/16; B41J2/14
Attorney, Agent or Firm:
Hidewa Patent Office