LIQUID DISCHARGE HEAD, LIQUID DISCHARGE DEVICE, AND CONTROL METHOD

• Main Authors: YOSHINARI NORIHIRO, GOTO AKIO, MATSUI TAKAHIRO, KATO MAKI, MISUMI YOSHINORI, ISHIDA YUZURU
• Format: Patent
• Language: English; Japanese
• Published: 24.05.2018
• Subjects: CORRECTION OF TYPOGRAPHICAL ERRORS; i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; LINING MACHINES; PERFORMING OPERATIONS; PRINTING; SELECTIVE PRINTING MECHANISMS; STAMPS; TRANSPORTING; TYPEWRITERS

PROBLEM TO BE SOLVED: To provide a liquid discharge head which can reduce retention of air bubbles in a periphery of a paired electrode in a structure for suppressing adhesion of scorch on a surface of a heater by electric field formation between an electrode in a periphery of a heater and the paired electrode.SOLUTION: A liquid discharge head, in which a plurality of discharge ports for discharging a liquid are aligned, includes: a plurality of liquid chambers which are arranged by corresponding to the plurality of discharge ports respectively and are partitioned mutually by flow passage walls in an alignment direction; a gap which is arranged on at least one of the two flow passage walls corresponding to the liquid chamber, and communicates with the adjacent liquid chamber in the alignment direction; an energy generation element which is arranged in the liquid chamber and generates energy for discharging the liquid; an element peripheral electrode which is arranged in the liquid chamber and is arranged in a periphery of the energy generation element; a paired electrode arranged in the liquid chamber; and a supply port communicating with the plurality of liquid chambers.SELECTED DRAWING: Figure 3 【課題】液体吐出ヘッドにおける、ヒーター近傍の電極と対となる電極との間の電場形成によってヒーター表面へのコゲを付着を抑制する構成において、対となる電極近傍への気泡の滞留を低減することを可能とする。【解決手段】液体を吐出するための複数の吐出口が配列した液体吐出ヘッドは、複数の吐出口それぞれに対応して設けられる液室であって、その複数の液室が、配列の方向において、流路壁によって相互に仕切られる液室と、液室に対応する２つの流路壁の少なくとも一方について設けられた、配列の方向において隣接する液室と連通するための空隙と、液室に設けられた、液体を吐出させるためのエネルギーを発生するエネルギー発生素子と、液室に設けられた、エネルギー発生素子の近傍に配置された素子近傍電極と、液室に設けられた対の電極と、複数の液室に連通する供給口と、を具える。【選択図】図３