US 12,391,042 B2
Liquid discharge head, liquid discharge unit, and liquid discharge apparatus
Yuki Fujimura, Kanagawa (JP); and Toshiaki Masuda, Kanagawa (JP)
Assigned to RICOH COMPANY, LTD., Tokyo (JP)
Filed by Yuki Fujimura, Kanagawa (JP); and Toshiaki Masuda, Kanagawa (JP)
Filed on Aug. 17, 2023, as Appl. No. 18/234,880.
Claims priority of application No. 2022-156593 (JP), filed on Sep. 29, 2022; and application No. 2023-103945 (JP), filed on Jun. 26, 2023.
Prior Publication US 2024/0109317 A1, Apr. 4, 2024
Int. Cl. B41J 2/14 (2006.01)
CPC B41J 2/14233 (2013.01) 12 Claims
OG exemplary drawing
 
1. A liquid discharge head comprising:
a first substrate having a joint region;
a sheet member having a first face joined to the first substrate with a joining agent applied to the joint region of the first substrate; and
a second substrate joined to a second face opposite to the first face of the sheet member and the first substrate, the sheet member interposed between the first substrate and the second substrate,
wherein the second substrate has a gap facing the second face of the sheet member opposite to a portion of the first face of the sheet member joined to the joint region of the first substrate across the sheet member.