US 12,291,031 B2
Liquid discharge head and liquid discharge apparatus
Shusei Murai, Tokyo (JP); Tatsumi Suzuki, Tokyo (JP); Keiko Maruyama, Miyagi (JP); Satoshi Kudoh, Miyagi (JP); and Hiroyasu Umehara, Miyagi (JP)
Assigned to Ricoh Company, Ltd., Tokyo (JP)
Filed by Shusei Murai, Tokyo (JP); Tatsumi Suzuki, Tokyo (JP); Keiko Maruyama, Miyagi (JP); Satoshi Kudoh, Miyagi (JP); and Hiroyasu Umehara, Miyagi (JP)
Filed on Mar. 1, 2023, as Appl. No. 18/176,742.
Claims priority of application No. 2022-037977 (JP), filed on Mar. 11, 2022.
Prior Publication US 2023/0286271 A1, Sep. 14, 2023
Int. Cl. B41J 2/14 (2006.01)
CPC B41J 2/14201 (2013.01) [B41J 2002/14491 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A liquid discharge head comprising:
a nozzle forming member having a nozzle configured to discharge liquid;
an opening and closing member configured to open and close the nozzle;
a piezoelectric body configured to expand and contract in an axial direction in response to a drive voltage so as to actuate the opening and closing member such that the nozzle is opened and closed;
a first housing member having a cylindrical shape and configured to house the piezoelectric body;
a ground member configured to contact an inner side of the first housing member; and
a ground wire, the ground member being electrically connected to the ground wire and the first housing member.