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公开(公告)号：EP4129691A1
公开(公告)日：2023-02-08
申请号：EP22188750.8
申请日：2022-08-04
发明人： NAGANUMA, Yoichi , FUKUZAWA, Yuma , MIZUTA, Shohei
IPC分类号： B41J2/14
摘要： A liquid ejecting head includes a first pressure compartment extending in a first direction; a second pressure compartment extending in the first direction; a first communication passage continuous from the first pressure compartment and extending in the first direction; a second communication passage continuous to the second pressure compartment and extending in the first direction; a third communication passage continuous from the first communication passage and extending in a second direction intersecting with the first direction; a fourth communication passage continuous to the second communication passage and extending in the second direction; a fifth communication passage continuous from the third communication passage and continuous to the fourth communication passage and extending in the first direction; and a nozzle provided on the fifth communication passage.
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公开(公告)号：EP4223542A1
公开(公告)日：2023-08-09
申请号：EP23154839.7
申请日：2023-02-03
IPC分类号： B41J2/14
摘要： A liquid ejecting head includes: a nozzle configured to eject a liquid; first to fourth pressure chambers; a communication flow path coupled to the nozzle and communicating between the nozzle and the first to fourth pressure chambers; first to fourth flow paths coupling the communication flow path and the first to fourth pressure chambers; first to fourth driving elements configured to change a pressure in the first to fourth pressure chambers; a first common liquid chamber communicating with the first pressure chamber and the second pressure chamber; and a second common liquid chamber communicating with the third pressure chamber and the fourth pressure chamber. The first flow path and the second flow path are arranged side by side in a first direction, the third flow path and the fourth flow path are arranged side by side in the first direction, and the first flow path and the second flow path, and the third flow path and the fourth flow path are arranged to be shifted in a second direction orthogonal to the first direction. The first flow path is shifted from each of the third flow path and the fourth flow path in the first direction, and the second flow path is shifted from each of the third flow path and the fourth flow path in the first direction.
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公开(公告)号：EP3715132A1
公开(公告)日：2020-09-30
申请号：EP20165363.1
申请日：2020-03-24
摘要： Provided is a liquid discharging head including: a nozzle discharging a liquid; a chamber plate having a plurality of pressure chambers, drive elements provided in correspondence with each pressure chamber, and a plurality of lead electrodes for supplying electric signals to the drive elements; and a circuit substrate having terminals coupled to the lead electrodes, in which the plurality of pressure chambers include a first pressure chamber and a second pressure chamber, the chamber plate includes a first pressure chamber and a second pressure chamber commonly communicating with one nozzle and a first segment electrode and a second segment electrode constituting the drive element, the first segment electrode being formed so as to overlap the first pressure chamber and not to overlap the second pressure chamber in plan view, and the second segment electrode being formed so as to overlap the second pressure chamber and not to overlap the first pressure chamber in plan view, and the first segment electrode and the second segment electrode are coupled to one common lead electrode.
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公开(公告)号：EP4303013A1
公开(公告)日：2024-01-10
申请号：EP23184175.0
申请日：2023-07-07
IPC分类号： B41J2/14
摘要： A liquid ejecting head (10) comprises a first driving element (PZ[m1]), a first pressure chamber (CV[m1]) that is partitioned on a pressure chamber substrate (34) and applies pressure to a liquid by driving of the first driving element; and a first nozzle (N[m1]) that is formed in a nozzle substrate (46), communicates with the first pressure chamber, and ejects the liquid, wherein the nozzle substrate (46) includes a first surface (FN1) and a second surface (FN2) closer to the pressure chamber substrate than is the first surface. The first nozzle includes a first upstream nozzle portion (NU[m1]) including a first supply opening (U1[m1]) opened in the second surface and a first bottom surface (U2[m1]) facing the first supply opening and a first downstream nozzle portion (ND[m1]) including a first ejection opening (D2[m1]) opened in the first surface and a first coupling section (D1[m1]) opened in the first bottom surface. When viewed in a thickness direction of the nozzle substrate, a sectional area of the first upstream nozzle portion is larger than a sectional area of the first downstream nozzle portion, and when viewed in the thickness direction, a center of gravity (GD1) of the first coupling section is positioned between a center of gravity (GD2) of the first ejection opening and a center of gravity (GU2) of the first bottom surface.
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公开(公告)号：EP3715133A1
公开(公告)日：2020-09-30
申请号：EP20165553.7
申请日：2020-03-25
IPC分类号： B41J2/14
摘要： Provided is a liquid discharging head including: a nozzle (157) discharging a liquid; a chamber plate having a plurality of pressure chambers (221), a drive element (1100) provided to correspond to each of the pressure chambers, and a plurality of lead electrodes (276ka, 276kb) for supplying an electric signal to the drive element; and a circuit substrate (29) having a terminal (123k) coupled to the lead electrode, in which the plurality of pressure chambers include a first pressure chamber (221a) and a second pressure chamber (221b) commonly communicating with one nozzle, the plurality of lead electrodes include a first individual lead electrode (276ka) drawn from a first drive element that is the drive element corresponding to the first pressure chamber, and a second individual lead electrode (276kb) drawn from a second drive element that is the drive element corresponding to the second pressure chamber, and one terminal of the circuit substrate is coupled so as to overlap the first individual lead electrode and the second individual lead electrode in plan view.
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