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公开(公告)号：EP3424718A1
公开(公告)日：2019-01-09
申请号：EP18176944.9
申请日：2018-06-11
IPC分类号： B41J2/14
摘要： In a circulating system which circulates liquid within a liquid ejecting head (10), thickening of liquid in the vicinity of an ejection port (11, 21, 23, 26, 28, 30) can be more securely suppressed. The ejection port (11, 21, 23, 26, 28, 30) includes a first ejection port (11) disposed in an upstream side in an ejecting direction of ink and a second ejection port (21, 23, 26, 28, 30) disposed in a downstream side in the ejecting direction. The second ejection port (21, 23, 26, 28, 30) includes an enlarged diameter portion whose diameter is enlarged in a radially outward manner from at least a part of an opening edge portion of the first ejection port (11).
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公开(公告)号：EP3421239A1
公开(公告)日：2019-01-02
申请号：EP18176449.9
申请日：2018-06-07
摘要： The present invention provides a liquid ejecting module capable of performing stable ejection operation while circulating and supplying fresh ink to the vicinity of ejection ports arranged in high density. To achieve this, a liquid ejecting module (100) includes an element arranged face in which a plurality of ejecting elements are arranged, a circulation flow path including a supply flow path (5) which supplies liquid to a pressure chamber (3) and a collection flow path (6) which collects liquid from the pressure chamber (3), and a liquid conveying mechanism (8) provided in the circulation flow path for circulating liquid in the pressure chamber. The liquid conveying mechanism (8) is located lower than the element arranged face.
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公开(公告)号：EP3421238A1
公开(公告)日：2019-01-02
申请号：EP18175938.2
申请日：2018-06-05
摘要： In a configuration having a circulation flow path (7) in association with an ejection element (1), there is provided a liquid ejecting apparatus capable of circulating liquid suitably and maintaining stable ejection operation while reducing liquid vaporization, a power supply capacity, and the effect of noise. For this purpose, in a configuration in which liquid delivery mechanisms (12) that facilitate a flow in a flow path (7) are prepared in association with pressure chambers (3), the liquid delivery mechanisms (12) are divided into a plurality of blocks and the liquid delivery mechanisms (12) included in each of the blocks are driven at different timings.
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公开(公告)号：EP4253056A1
公开(公告)日：2023-10-04
申请号：EP23163622.6
申请日：2023-03-23
摘要： An object is to provide a liquid ejection head (1) and liquid ejection apparatus (101) capable of reducing or preventing a decrease in image quality without increasing the chip size. To achieve this, a configuration is employed in which a bonding layer (19) is not provided between a liquid supply substrate (203) and channel partitions (16) between common supply channels (13a) and common collection channels (13b), and a minute communication portion (20) is provided there.
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公开(公告)号：EP4253055A1
公开(公告)日：2023-10-04
申请号：EP23163616.8
申请日：2023-03-23
IPC分类号： B41J2/14
摘要： A liquid ejection head (1) includes: an ejection port array (3) being an array of ejection ports; a plurality of pressure chambers (5) corresponding respectively to the ejection ports and communicating with the ejection ports; individual supply channels (7) and individual collection channels (8) communicating with the pressure chambers; a common supply channel (17, 27) communicating with surfaces of the individual supply channels opposite to surfaces thereof communicating with the pressure chambers; a common collection channel (18, 28) communicating with surfaces of the individual collection channels opposite to surfaces thereof communicating with the pressure chambers; and a damper member forming a wall of a part of at least one of the common supply channel or the common collection channel. The common supply channel and the common collection channel are formed so as to extend in a first direction along the ejection port array, and are disposed side by side in a second direction crossing the ejection port array.
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公开(公告)号：EP3594001A1
公开(公告)日：2020-01-15
申请号：EP19180461.6
申请日：2019-06-17
发明人： MORISUE, Masafumi , NAKAGAWA, Yoshiyuki , YAMADA, Kazuhiro , YAMAZAKI, Takuro , KASAI, Ryo , KUDO, Tomoko , SUGAWARA, Takashi
摘要： Provided is a liquid ejecting head (100) including an element substrate (2) including: a common liquid chamber (10) connected to a liquid supply source; a pressure chamber (20) connected to the common liquid chamber and including inside an element (5) to generate energy used for ejecting liquid; a bubble generating chamber (30) connected to the common liquid chamber and including inside a pump (7) to cause a flow of the liquid; and a connection flow path (9) connecting the pressure chamber and the bubble generating chamber, in which the liquid ejecting head includes a first anti-cavitation film (6) over the element to generate the energy and a second anti-cavitation film (8) over the pump, and the first anti-cavitation film and the second anti-cavitation film have different film thicknesses.
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公开(公告)号：EP3421240A1
公开(公告)日：2019-01-02
申请号：EP18176217.0
申请日：2018-06-06
发明人： YAMAZAKI, Takuro , NAKAKUBO, Toru , YAMADA, Kazuhiro , NAKAGAWA, Yoshiyuki , HAMADA, Yoshihiro , ISHIDA, Koichi , OKUSHIMA, Shingo
IPC分类号： B41J2/14
摘要： A plurality of pressure chambers (3) are formed in a circulation channel (7) for liquid in order to array ejection ports (2) in a high density in association with the circulation channel (7). The circulation channel (7) is connected to a penetration supply path (6) and a penetration recovery path (6') that penetrate a substrate (4).
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