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1. 发明公开

EP4393711A2 LIQUID EJECTION HEAD AND LIQUID EJECTION APPARATUS COMPRISING THE SAME 审中-实审
公开(公告)号：EP4393711A2
公开(公告)日：2024-07-03
申请号：EP23216621.5
申请日：2023-12-14
申请人： CANON KABUSHIKI KAISHA
发明人： OSAKI, Yasuhiko , IWANAGA, Shuzo , MORI, Tatsurou , AMMA, Hiromasa , OKUSHIMA, Shingo , KIMURA, Satoshi , OIKAWA, Yuhei , NAKANO, Takatoshi , ISHIDA, Koichi
IPC分类号： B41J2/14 , B41J2/155 , B41J2/165
CPC分类号： B41J2202/1220130101 , B41J2202/2020130101 , B41J2202/1920130101 , B41J2/14024 , B41J2/1404 , B41J2/14145 , B41J2/155 , B41J2/16535
摘要： There is provided a liquid ejection head (3) including: a printing element board (10) having an ejection surface (120) in which an ejection orifice array (14) is formed to eject liquid; and a protective member (140) having an opening (141) corresponding to the ejection orifice array (14), wherein the shape of the opening (141) is an elongate shape having a longitudinal direction and a lateral direction in the case of viewing from the discharge surface(120), the opening (141) has a first side surface parallel to the longitudinal direction and a second side surface parallel to the transverse direction, and the protective member (140) is fixed to the ejection surface (120) such that the first side surface has a first inclination angle with the ejection surface (120).

2. 发明公开

EP4393714A1 LIQUID EJECTION DEVICE 审中-公开
公开(公告)号：EP4393714A1
公开(公告)日：2024-07-03
申请号：EP23218397.0
申请日：2023-12-20
申请人： CANON KABUSHIKI KAISHA
发明人： ISHIDA, Yuzuru , IWAHASHI, Shinya , MISUMI, Yoshinori , ISHIDA, Koichi
IPC分类号： B41J2/14
CPC分类号： B41J2/14129 , B41J2/14072 , B41J2202/1220130101
摘要： A liquid ejection device(3) has an element substrate (10) having an ejection port (13); and a voltage application unit (900) applying a voltage to the element substrate, wherein the element substrate has a first layer (12) having the ejection port and a first channel (23) communicating with the ejection port and a second layer (11) fixed to a back face of the first layer and having a second channel (17a) communicating with the first channel, a heat element (126) for ejecting the liquid, a first electrode (133) covering a surface of the heat element on a side of the first layer and exposed to the first channel, and a second electrode (129) exposed to the first channel at a position different from the first electrode and not overlapping the heat element on a plan view, and the voltage application unit is configured to apply the voltage so that the first electrode is at a negative potential.

3. 发明公开

EP4393711A3 LIQUID EJECTION HEAD AND LIQUID EJECTION APPARATUS COMPRISING THE SAME 审中-实审
公开(公告)号：EP4393711A3
公开(公告)日：2024-08-14
申请号：EP23216621.5
申请日：2023-12-14
申请人： CANON KABUSHIKI KAISHA
发明人： OSAKI, Yasuhiko , IWANAGA, Shuzo , MORI, Tatsurou , AMMA, Hiromasa , OKUSHIMA, Shingo , KIMURA, Satoshi , OIKAWA, Yuhei , NAKANO, Takatoshi , ISHIDA, Koichi
IPC分类号： B41J2/14 , B41J2/155 , B41J2/165
CPC分类号： B41J2202/1220130101 , B41J2202/2020130101 , B41J2202/1920130101 , B41J2/14024 , B41J2/1404 , B41J2/14145 , B41J2/155 , B41J2/16535 , B41J2/16517 , B41J2/16502
摘要： There is provided a liquid ejection head (3) including: a printing element board (10) having an ejection surface (120) in which an ejection orifice array (14) is formed to eject liquid; and a protective member (140) having an opening (141) corresponding to the ejection orifice array (14), wherein the shape of the opening (141) is an elongate shape having a longitudinal direction and a lateral direction in the case of viewing from the discharge surface(120), the opening (141) has a first side surface parallel to the longitudinal direction and a second side surface parallel to the transverse direction, and the protective member (140) is fixed to the ejection surface (120) such that the first side surface has a first inclination angle with the ejection surface (120).

4. 发明公开

EP4393712A1 LIQUID EJECTION HEAD 审中-公开
公开(公告)号：EP4393712A1
公开(公告)日：2024-07-03
申请号：EP23216622.3
申请日：2023-12-14
申请人： CANON KABUSHIKI KAISHA
发明人： MORI, Tatsurou , IWANAGA, Shuzo , AMMA, Hiromasa , OKUSHIMA, Shingo , KIMURA, Satoshi , ISHIDA, Koichi , TAKAHASHI, Tomohiro , MIHARA, Hiroaki , OIKAWA, Yuhei , NAKANO, Takatoshi , HAMADA, Yoshihiro , TANAKA, Fumi
IPC分类号： B41J2/14 , B41J2/16 , B41J2/155
CPC分类号： B41J2202/2020130101 , B41J2202/1920130101 , B41J2202/1220130101 , B41J2/155 , B41J2/14145 , B41J2/1404 , B41J2/14024 , B41J2/1603 , B41J2/1623 , B41J2/1631 , B41J2/1626 , B41J2/1634 , B41J2/1632
摘要： A liquid ejection head (3) according to the present disclosure includes: a printing element substrate (10) including an ejection surface (120) provided with a first ejection orifice array (14a-14d) in which an ejection orifice configured to be capable of ejecting a liquid is arranged in plurality in an array direction and a second ejection orifice array (14a-14d) arranged in a direction intersecting with the array direction and the first ejection orifice array (14a-14d); and a protective member (140) provided with a first opening corresponding to the first ejection orifice array (14a-14d) and a second opening corresponding to the second ejection orifice array (14a-14d), wherein the protective member (140) is arranged adjacent to the ejection surface (120) of the printing element substrate (10) via an adhesive arranged between the first ejection orifice array (14a-14d) and the second ejection orifice array (14a-14d).

5. 发明授权

EP3401105B1 PRINT HEAD SUBSTRATE AND METHOD OF MANUFACTURING THE SAME, SEMICONDUCTOR SUBSTRATE AND METHOD OF MANUFACTURING THE SAME, AND INKJET PRINTING APPARATUS 有权
公开(公告)号：EP3401105B1
公开(公告)日：2020-06-24
申请号：EP18168665.0
申请日：2018-04-23
申请人： CANON KABUSHIKI KAISHA
发明人： KASAI, Ryo , SAKURAI, Masataka , ISHIDA, Koichi
IPC分类号： B41J2/045 , B41J2/14

6. 发明公开

EP3730300A1 LIQUID EJECTION HEAD, LIQUID EJECTION APPARATUS, AND PRINTING APPARATUS 有权
公开(公告)号：EP3730300A1
公开(公告)日：2020-10-28
申请号：EP20169793.5
申请日：2020-04-16
申请人： Canon Kabushiki Kaisha
发明人： ISHIDA, Koichi , OKUSHIMA, Shingo
IPC分类号： B41J2/14
摘要： An element substrate (100) of a liquid ejection head includes an ejection opening array (14) in which multiple ejection openings (13) are arranged along a first direction, pressure chambers (23) communicating with the ejection openings, and heat generating elements (15) for ejecting liquid supplied to the pressure chambers, through the ejection openings. The element substrate also includes a first supply path (18) extending in the first direction and communicating with the pressure chambers, a first collection path (19) communicating with the pressure chambers, multiple liquid supply ports (21a) communicating with the first supply path at different positions in the first direction, and a liquid collection port (21b) communicating with the first collection path. At least a liquid supply port (21al, 21a2) of the liquid supply ports located at an end portion in the first direction has an opening area larger than the opening area of the liquid collection port.

7. 发明授权

EP3072695B1 LIQUID EJECTING APPARATUS 有权
公开(公告)号：EP3072695B1
公开(公告)日：2020-01-15
申请号：EP16160191.9
申请日：2016-03-14
申请人： Canon Kabushiki Kaisha
发明人： ARIMIZU, Hiroshi , KUBOTA, Masahiko , YAMAGUCHI, Nobuhito , MIYAKOSHI, Arihito , ISHIDA, Koichi , ITOH, Yoshinori
IPC分类号： B41J2/08 , B41J2/165 , B41J2/17

8. 发明公开

EP3421240A1 LIQUID EJECTION HEAD AND LIQUID EJECTION APPARATUS 有权
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
申请人： CANON KABUSHIKI KAISHA
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).

9. 发明公开

EP3401105A1 PRINT HEAD SUBSTRATE AND METHOD OF MANUFACTURING THE SAME, SEMICONDUCTOR SUBSTRATE AND METHOD OF MANUFACTURING THE SAME, AND INKJET PRINTING APPARATUS 有权
公开(公告)号：EP3401105A1
公开(公告)日：2018-11-14
申请号：EP18168665.0
申请日：2018-04-23
申请人： CANON KABUSHIKI KAISHA
发明人： KASAI, Ryo , SAKURAI, Masataka , ISHIDA, Koichi
IPC分类号： B41J2/045 , B41J2/14
摘要： A print head substrate (101) includes: a substrate surface including a plurality of printing elements (103) and a plurality of pads (104) disposed along a first side and electrically connected to the printing elements, the substrate surface having an acute angle portion formed by the first side and a second side; and a test element group (TEG) area (105) including a TEG (205) not electrically connected to the printing elements, at least a part of the TEG area being located between the second side and a pad closest to a vertex of the acute angle portion among the pads.

10. 发明公开

EP3072695A1 LIQUID EJECTING APPARATUS 有权
标题翻译：液体喷射装置
公开(公告)号：EP3072695A1
公开(公告)日：2016-09-28
申请号：EP16160191.9
申请日：2016-03-14
申请人： Canon Kabushiki Kaisha
发明人： ARIMIZU, Hiroshi , KUBOTA, Masahiko , YAMAGUCHI, Nobuhito , MIYAKOSHI, Arihito , ISHIDA, Koichi , ITOH, Yoshinori
IPC分类号： B41J2/17
CPC分类号： B41J2/1652 , B41J2/08 , B41J2/1714
摘要： A suction hole (7) sucks air existing in a region S together with mist (12) is formed downstream of a liquid ejecting unit (11), as viewed from the liquid ejecting unit, in a movement direction (i.e., a direction E) of a print medium (P) in the case of relative movement between the liquid ejecting unit and the print medium. Moreover, a blowing hole blows air toward the print medium so as to generate a vortex (V) of gas downstream of the suction hole is formed downstream of the suction hole (7) in the movement direction. Here, a relationship expressed by the following expression is satisfied: γ ≥ h / 3 where y represents a maximum vortex core radius (mm) of the vortex in a direction perpendicular to the print medium and h represents a distance (mm) between a blowing hole and the print medium.
摘要翻译：当从液体喷射单元观察时，在液体喷射单元（11）的下游沿着移动方向（即方向E）形成吸入孔（7），其与雾状物（12）一起吸入存在于区域S中的空气，在液体喷射单元和打印介质之间相对移动的情况下打印介质（P）的位置。此外，吹气孔向打印介质喷射空气，以在吸气孔（7）的移动方向下游形成吸气孔下游的气体涡流（V）。这里，满足下列表达式的关系：γ≥h/ 3其中，y表示垂直于打印介质的方向上涡流的最大涡核半径（mm），h表示喷吹之间的距离（mm）孔和打印介质。

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