LIQUID DISCHARGE HEAD AND LIQUID DISCHARGE DEVICE

• Main Authors: SAITO AKIKO, MORIYA TAKATSUGU, IWANAGA SHUZO, YAMADA TATSUYA, ISHIWATA TOMOKI, SATO TOMOATSU, ISHIDA KOICHI, KASAI SHINTARO, NAKAGAWA YOSHIYUKI, TOZUKA AYAKO
• Format: Patent
• Language: English; Japanese
• Published: 25.01.2018
• 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 and a liquid discharge device capable of reducing generation of satellites and performing excellent liquid discharge.SOLUTION: A liquid discharge head 3 includes: a discharge port 13 for discharging liquid; a pressure chamber 23 communicated with the discharge port 13; and an energy generation element 15 arranged in the pressure chamber 23. The discharge port 13 is provided with a plurality of projections 13a projecting from an inner peripheral edge of the discharge port 13 toward a central portion. A space D between the projections 13a is 5 μm or less at a position where the projections 13a most approach each other.SELECTED DRAWING: Figure 1 【課題】サテライトの発生を低減でき、かつ良好な液体吐出が可能な液体吐出ヘッド及び液体吐出装置を提供する。【解決手段】液体を吐出する吐出口１３と、吐出口１３に連通している圧力室２３と、圧力室２３の内部に配置されているエネルギ発生素子１５と、を有する液体吐出ヘッド３において、吐出口１３には、吐出口１３の内周縁から中央部に向かって突出する複数の突起１３ａが設けられており、突起１３ａ同士が最も近接する位置における突起１３ａ同士の間の間隔Ｄが５μｍ以下である。【選択図】図１