公开(公告)号：US20220339934A1

公开(公告)日：2022-10-27

申请号：US17719213

申请日：2022-04-12

Applicant: CANON KABUSHIKI KAISHA

Inventor： Tomohiro Sato ,  Shuzo Iwanaga ,  Takatsugu Moriya ,  Koichi Ishida ,  Shingo Okushima ,  Shintaro Kasai ,  Yoshiyuki Nakagawa ,  Akiko Hammura

IPC: B41J2/14

Abstract: A liquid discharge head includes a liquid discharge substrate that has a discharge-orifice row, pressure generating elements, and pressure chambers. The liquid discharge head discharges a liquid in a block-by-block manner using sequential driving. The discharge-orifice row is disposed so as to incline at an angle θ=Arctan (d1/d2) relative to a direction extending orthogonal to the conveyance direction of the medium, in which d1 (μm) is a disposition spacing of the discharge orifices in the discharge-orifice row in the conveyance direction and d2 (μm) is a disposition spacing of the discharge orifices in the discharge-orifice row in the direction orthogonal to the conveyance direction. A partition wall is formed between adjacent pressure chambers so as to separate the adjacent pressure chambers from each other. The partition wall has a communicating portion that communicates the adjacent pressure chambers with each other.

公开(公告)号：US20190023001A1

公开(公告)日：2019-01-24

申请号：US16144239

申请日：2018-09-27

Applicant: CANON KABUSHIKI KAISHA

Inventor： Takatsugu Moriya ,  Shuzo Iwanaga ,  Shintaro Kasai ,  Yoshiyuki Nakagawa ,  Akiko Hammura ,  Tatsuya Yamada ,  Tomohiro Sato ,  Ayako Iwasaki ,  Tomoki Ishiwata ,  Koichi Ishida

IPC: B41J2/045 ,  B41J2/14 ,  B41J2/03

Abstract: A liquid discharging head includes a discharge port that discharges a liquid, a pressure chamber that communicates with the discharge port, and an energy generating element that is disposed in the pressure chamber. In the liquid discharging head, the discharge port is provided with a plurality of projections that project towards a central portion of the discharge port from an inner peripheral edge of the discharge port, and an interval between the projections at a location where the projections are closest to each other is 5 μm or less.

公开(公告)号：US20180056654A1

公开(公告)日：2018-03-01

申请号：US15691402

申请日：2017-08-30

Applicant: CANON KABUSHIKI KAISHA

Inventor： Tomohiro Sato ,  Shintaro Kasai ,  Yoshiyuki Nakagawa ,  Akiko Saito ,  Takatsugu Moriya ,  Koichi Ishida ,  Tatsuya Yamada ,  Shuzo Iwanaga ,  Shingo Okushima

IPC: B41J2/14 ,  B41J2/145

CPC classification number: B41J2/1433 ,  B41J2/1404 ,  B41J2/14233 ,  B41J2/145 ,  B41J2002/14467 ,  B41J2202/12 ,  B41J2202/20

Abstract: A discharge port array is inclined to a second direction B at an angle θ that satisfies a relation of tan θ=d2/(N×d1), where d1 is a distance between discharge ports within the discharge port array in the second direction B, and d2 is a distance between two adjacent discharge ports within each group in a first direction.

公开(公告)号：US20170197413A1

公开(公告)日：2017-07-13

申请号：US15394639

申请日：2016-12-29

Applicant: CANON KABUSHIKI KAISHA

Inventor： Yoshiyuki Nakagawa ,  Shintaro Kasai ,  Shuzo Iwanaga ,  Akiko Saito ,  Koichi Ishida ,  Takatsugu Moriya

IPC: B41J2/14

CPC classification number: B41J2/18 ,  B41J2/14024 ,  B41J2/1404 ,  B41J2/14145 ,  B41J2002/012 ,  B41J2202/12 ,  B41J2202/20 ,  B41J2202/21

Abstract: A liquid discharge head includes: a substrate, where a recording element is disposed; and a discharge orifice forming member, where a discharge orifice, facing the recording element, and configured to discharge the liquid, is formed. The liquid discharge head has a pressure chamber, a first liquid channel configured to supply liquid to the pressure chamber, and a second liquid channel configured to recover liquid from the pressure chamber. The substrate has a liquid supply channel connected to the first liquid channel to supply liquid to the first liquid channel, and a liquid recovery channel connected to the second liquid channel, to recover liquid from the second liquid channel. Pressure at an inlet portion of the liquid supply channel is higher than pressure at an outlet portion of the liquid recovery channel, and a flow velocity of liquid within the pressure chamber is 3 to 140 mm/s.

公开(公告)号：US09616663B2

公开(公告)日：2017-04-11

申请号：US14996657

申请日：2016-01-15

Applicant: CANON KABUSHIKI KAISHA

Inventor： Yoshinori Itoh ,  Nobuhito Yamaguchi ,  Hiroshi Arimizu ,  Yusuke Imahashi ,  Arihito Miyakoshi ,  Masahiko Kubota ,  Koichi Ishida

IPC: B41J2/14

CPC classification number: B41J2/14032 ,  B41J2/14 ,  B41J2/14016 ,  B41J2/14072 ,  B41J2/14129

Abstract: Adhesion of particles to a liquid ejecting head due to an electric field generated at an electric power supply wire disposed in the liquid ejecting head can be suppressed. The liquid ejecting head is provided with a conductive member covering at least a part of the electric power supply wire for supplying electric power to an ejection energy generating unit configured to generate ejection energy for ejecting liquid, with an insulator therebetween. The conductive member covers the electric power supply wire in a coverage determined based on a relative movement speed between an ejection port and a print medium, a size of particles floating between an ejection port forming surface and the print medium, an electric charge amount of the particles, and a voltage applied to the electric power supply wire.

公开(公告)号：US20160257127A1

公开(公告)日：2016-09-08

申请号：US15057929

申请日：2016-03-01

Applicant: CANON KABUSHIKI KAISHA

Inventor： Hiroshi Arimizu ,  Ken Tsuchii ,  Nobuhito Yamaguchi ,  Yumi Komamiya ,  Arihito Miyakoshi ,  Koichi Ishida

IPC: B41J2/19

CPC classification number: B41J2/19 ,  B41J2/1433 ,  B41J2/15 ,  B41J2/175 ,  B41J2202/02

Abstract: Gas is blown at a predetermined speed from a predetermined area on an orifice substrate with reference to the position of an ejection port array.

Abstract translation: 参考喷射口阵列的位置，从孔基板上的预定区域以预定速度吹送气体。

公开(公告)号：US20150085014A1

公开(公告)日：2015-03-26

申请号：US14484447

申请日：2014-09-12

Applicant: CANON KABUSHIKI KAISHA

Inventor： Koichi Ishida ,  Hiroshi Arimizu ,  Arihito Miyakoshi ,  Yoshinori Itoh ,  Nobuhito Yamaguchi ,  Masahiko Kubota

IPC: B41J2/165

CPC classification number: B41J2/1714

Abstract: There are provided a mist collecting mechanism capable of efficiently sucking and collecting an air blown out from a blow-out unit and a liquid ejection apparatus including the mist collecting mechanism. The mist collecting mechanism includes a suction port configured to suck an air containing mists. Moreover, the mist collecting mechanism includes a first blow-out port that blows out an air in order to guide the air containing mists to the suction port. Moreover, the mist collecting mechanism includes a second blow-out port that blows out an air in order to adjust a position, toward which the air blown out from the first blow-out port flows, so that the air blown out from the first blow-out port is appropriately sucked by the suction port.

Abstract translation: 提供了一种能够有效地吸入和收集从吹出单元吹出的空气和包括雾气收集机构的液体喷射装置的雾气收集机构。 雾收集机构包括被构造成吸入含有空气的空气的吸入口。 此外，雾气收集机构包括吹出空气的第一吹出口，以将含有雾的空气引导到吸入口。 此外，雾气收集机构包括吹出空气的第二吹出口，以调节从第一吹出口吹出的空气流动的位置，使得从第一吹出吹出的空气 出口适当地被吸入口吸入。

公开(公告)号：US20230271425A1

公开(公告)日：2023-08-31

申请号：US18310454

申请日：2023-05-01

Applicant: CANON KABUSHIKI KAISHA

Inventor： Yoshiyuki Nakagawa ,  Shintaro Kasai ,  Shuzo Iwanaga ,  Akiko Hammura ,  Koichi Ishida ,  Takatsugu Moriya

IPC: B41J2/18 ,  B41J2/14

CPC classification number: B41J2/18 ,  B41J2/14024 ,  B41J2/1404 ,  B41J2/14145 ,  B41J2002/012

Abstract: A liquid discharge head includes: a substrate, where a recording element is disposed; and a discharge orifice forming member, where a discharge orifice, facing the recording element, and configured to discharge the liquid, is formed. The liquid discharge head has a pressure chamber, a first liquid channel configured to supply liquid to the pressure chamber, and a second liquid channel configured to recover liquid from the pressure chamber. The substrate has a liquid supply channel connected to the first liquid channel to supply liquid to the first liquid channel, and a liquid recovery channel connected to the second liquid channel, to recover liquid from the second liquid channel. Pressure at an inlet portion of the liquid supply channel is higher than pressure at an outlet portion of the liquid recovery channel, and a flow velocity of liquid within the pressure chamber is 3 to 140 mm/s.

公开(公告)号：US20220184968A1

公开(公告)日：2022-06-16

申请号：US17684995

申请日：2022-03-02

Applicant: CANON KABUSHIKI KAISHA

Inventor： Yoshiyuki Nakagawa ,  Shintaro Kasai ,  Shuzo Iwanaga ,  Akiko Hammura ,  Koichi Ishida ,  Takatsugu Moriya

IPC: B41J2/18 ,  B41J2/14

Abstract: A liquid discharge head includes: a substrate, where a recording element is disposed; and a discharge orifice forming member, where a discharge orifice, facing the recording element, and configured to discharge the liquid, is formed. The liquid discharge head has a pressure chamber, a first liquid channel configured to supply liquid to the pressure chamber, and a second liquid channel configured to recover liquid from the pressure chamber. The substrate has a liquid supply channel connected to the first liquid channel to supply liquid to the first liquid channel, and a liquid recovery channel connected to the second liquid channel, to recover liquid from the second liquid channel. Pressure at an inlet portion of the liquid supply channel is higher than pressure at an outlet portion of the liquid recovery channel, and a flow velocity of liquid within the pressure chamber is 3 to 140 mm/s.

公开(公告)号：US11298954B2

公开(公告)日：2022-04-12

申请号：US17061332

申请日：2020-10-01

Applicant: CANON KABUSHIKI KAISHA

Inventor： Yoshiyuki Nakagawa ,  Shintaro Kasai ,  Shuzo Iwanaga ,  Akiko Hammura ,  Koichi Ishida ,  Takatsugu Moriya

IPC: B41J2/18 ,  B41J2/14 ,  B41J2/01

Abstract: A liquid discharge head includes: a substrate, where a recording element is disposed; and a discharge orifice forming member, where a discharge orifice, facing the recording element, and configured to discharge the liquid, is formed. The liquid discharge head has a pressure chamber, a first liquid channel configured to supply liquid to the pressure chamber, and a second liquid channel configured to recover liquid from the pressure chamber. The substrate has a liquid supply channel connected to the first liquid channel to supply liquid to the first liquid channel, and a liquid recovery channel connected to the second liquid channel, to recover liquid from the second liquid channel. Pressure at an inlet portion of the liquid supply channel is higher than pressure at an outlet portion of the liquid recovery channel, and a flow velocity of liquid within the pressure chamber is 3 to 140 mm/s.