INK-JET PRINTING HEAD AND METHOD FOR MANUFACTURING THE SAME

• Main Authors: ASHIKAGA KINYA, MATSUO NOBUFUMI
• Format: Patent
• Language: English; Japanese
• Published: 08.02.2018
• 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 an ink-jet printing head having no step between an actuator substrate and a nozzle substrate.SOLUTION: An ink-jet printing head 1 includes: an actuator substrate 2 having an ink flow channel 5 including a pressure chamber 7; a movable film formation layer 10 including a movable film 10A which is arranged on the pressure chamber 7 and partitions a top surface portion of the pressure chamber 7; a piezoelectric element 9 formed on the movable film 10A; and a nozzle substrate 3 which is bonded to a second surface 2b in an opposite side to a first surface 2a being a surface on the side of the movable film 10 of the actuator substrate 2 by an adhesive, partitions a bottom surface portion of the pressure chamber 7, and has a nozzle hole 20 communicating with the pressure chamber 7. A side surface of the actuator substrate 2 and a side surface of the nozzle substrate 3 are flush with each other in all directions in plan view when viewed from a normal direction of the movable film 10A.SELECTED DRAWING: Figure 2 【課題】アクチュエータ基板とノズル基板との間に段差のないインクジェットプリントヘッドを提供する。【解決手段】インクジェットプリントヘッド１は、圧力室７を含むインク流路５を有するアクチュエータ基板２と、圧力室７上に配置されかつ圧力室７の天面部を区画する可動膜１０Ａを含む可動膜形成層１０と、可動膜１０Ａ上に形成された圧電素子９と、アクチュエータ基板２の可動膜１０Ａ側の表面である第１表面２ａとは反対側の第２表面２ｂに接着剤によって接合され、圧力室７の底面部を区画し、圧力室７に連通するノズル孔２０を有するノズル基板３とを含む。アクチュエータ基板２の側面とノズル基板３の側面とが、可動膜１０Ａの法線方向から見た平面視において全方位で面一である。【選択図】図２