Title:
液体吐出装置
Document Type and Number:
Japanese Patent JP6604117
Kind Code:
B2
Abstract:
A liquid ejecting device (16), including: a flow-path defining member (21) having a pressure chamber (26) formed therein; a piezoelectric actuator (22) constituted by a plurality of layers (22, 32, 37, 40, 41; 72, 75) which includes a piezoelectric layer (37), a common electrode (32; 72), and an individual electrode (34; 74), superposed on the flow-path defining member, and having a through-hole (29) communicating with the pressure chamber; an annular conductor (45) disposed on one of opposite surfaces of the piezoelectric actuator remote from the flow-path defining member such that a part (40, 41; 75) of the layers are sandwiched between the annular conductor and the common electrode, the annular conductor surrounding a periphery of the through-hole; and a liquid supply member (23) having a supply path (64) communicating with the through-hole and bonded to the one of the opposite surfaces via the annular conductor, wherein the annular conductor is connected to a terminal (47) configured to be given a predetermined constant potential and is exposed to a flow path defmed by the through-hole.
Inventors:
Shohei Koide
Keita Hirai
Keita Hirai
Application Number:
JP2015189283A
Publication Date:
November 13, 2019
Filing Date:
September 28, 2015
Export Citation:
Assignee:
Brother Industries, Ltd.
International Classes:
B41J2/14; B41J2/045
Domestic Patent References:
| JP2014198461A | ||||
| JP2010253786A | ||||
| JP2011212865A | ||||
| JP2008114371A | ||||
| JP2015107634A |
Foreign References:
| US20120167823 | ||||
| KR1020100133065A |
Attorney, Agent or Firm:
Kaji/Suhara Patent Office