公开(公告)号：US11554593B2

公开(公告)日：2023-01-17

申请号：US17366314

申请日：2021-07-02

Applicant: CANON KABUSHIKI KAISHA

Inventor： Hiroshi Miyamoto

IPC: B41J11/00

Abstract: An inkjet recording apparatus includes a printing portion configured to discharge ink on a sheet, a drying portion configured to blow warm air to the sheet to dry ink, a first rotary member is in contact with the first surface of the sheet, a heating portion configured to heat the first rotary member, a second rotary member configured to form a nip portion that apply heat and pressure to the sheet, a first detection unit configured to detect a temperature of the first rotary member, a second detection unit configured to detect a temperature of the second rotary member, a cooling unit configured to cool the second rotary member, and a control unit configured to execute a cooling mode of activating the cooling unit in a state where a temperature difference between the first rotary member and the second rotary member is smaller than a threshold.

公开(公告)号：US20220016913A1

公开(公告)日：2022-01-20

申请号：US17366314

申请日：2021-07-02

Applicant: CANON KABUSHIKI KAISHA

Inventor： Hiroshi Miyamoto

IPC: B41J13/02 ,  B41J29/377

Abstract: An inkjet recording apparatus includes a printing portion configured to discharge ink on a sheet, a drying portion configured to blow warm air to the sheet to dry ink, a first rotary member is in contact with the first surface of the sheet, a heating portion configured to heat the first rotary member, a second rotary member configured to form a nip portion that apply heat and pressure to the sheet, a first detection unit configured to detect a temperature of the first rotary member, a second detection unit configured to detect a temperature of the second rotary member, a cooling unit configured to cool the second rotary member, and a control unit configured to execute a cooling mode of activating the cooling unit in a state where a temperature difference between the first rotary member and the second rotary member is smaller than a threshold.

公开(公告)号：US12147179B2

公开(公告)日：2024-11-19

申请号：US18161164

申请日：2023-01-30

Applicant: CANON KABUSHIKI KAISHA

Inventor： Daigo Matsuura ,  Yasuharu Toratani ,  Akiyoshi Shinagawa ,  Hiroshi Miyamoto ,  Ayano Ogata ,  Hiroki Kawai ,  Masanobu Tanaka ,  Asuna Fukamachi ,  Misa Kawashima

IPC: G03G15/20

Abstract: A fixing device includes an endless belt, a rotatable pressing member contacting an outer circumferential surface of the belt, and a sliding member inside of the belt. The sliding member forms a nip portion by nipping and feeding the belt between itself and the rotatable pressing member and slides on an inner circumferential surface of the belt. The rotatable pressing member nips and feeds the recording material in the nip portion in cooperation with the belt and fixes a toner image on the recording material by applying heat and pressure. The sliding member includes a substrate extending in a widthwise direction of the belt, and the substrate is made of metal and includes a plurality of projections projecting toward the rotatable pressing member.

公开(公告)号：US11960224B2

公开(公告)日：2024-04-16

申请号：US18170082

申请日：2023-02-16

Applicant: CANON KABUSHIKI KAISHA

Inventor： Akiyoshi Shinagawa ,  Yasuharu Toratani ,  Hiroshi Miyamoto ,  Daigo Matsuura ,  Hiroki Kawai ,  Ayano Ogata ,  Masanobu Tanaka ,  Asuna Fukamachi ,  Misa Kawashima

IPC: G03G15/20 ,  G03G21/16

CPC classification number: G03G15/2028 ,  G03G15/2017 ,  G03G15/2053 ,  G03G15/2057 ,  G03G15/206 ,  G03G15/2064 ,  G03G21/1685 ,  G03G2215/2003 ,  G03G2215/2016 ,  G03G2215/2019 ,  G03G2215/2035 ,  G03G2215/2048 ,  G03G2215/2051 ,  G03G2215/2054

Abstract: A fixing device includes an endless belt, a rotatable pressing member, a pad member inside of the belt, and a sliding member held by the pad member and sliding on an inner circumferential surface of the belt in a nip. The rotatable pressing member nips and feeds a recording material in the nip in cooperation with the belt and fixes a toner image on the recording material by applying heat and pressure. The sliding member includes a base material layer on which a plurality of projections projecting toward the rotatable pressing member are formed on a side sliding with the belt and a sliding layer provided on an outer surface of the plurality of projections. A leading end of the plurality of projections is a plane and an average roughness (Ra) of the plane satisfies 0.13 μm≤Ra≤1.67 μm.

公开(公告)号：US11833831B2

公开(公告)日：2023-12-05

申请号：US18045237

申请日：2022-10-10

Applicant: CANON KABUSHIKI KAISHA

Inventor： Hiroshi Miyamoto ,  Yasunori Takei

IPC: B41J2/175 ,  B41J29/02

CPC classification number: B41J2/1752 ,  B41J2/17566 ,  B41J29/02 ,  B41J2002/17576

Abstract: An ink-jet printing apparatus includes an ink-cartridge mounting unit to which an ink cartridge having a first ink chamber containing ink is to be mounted, and a second ink chamber. The second ink chamber stores ink supplied from the first ink chamber. The ink-jet printing apparatus is configured such that, in a case where the ink cartridge is mounted to the ink-cartridge mounting unit, the second ink chamber can be viewed from outside of the ink-jet printing apparatus. An equation 0.5 L≤d≤1.2 L is satisfied, where d is a length of the second ink chamber, and L is a length of the ink cartridge in a direction in which the ink cartridge is inserted into the ink-jet printing apparatus.

公开(公告)号：US20230116519A1

公开(公告)日：2023-04-13

申请号：US18045237

申请日：2022-10-10

Applicant: CANON KABUSHIKI KAISHA

Inventor： Hiroshi Miyamoto ,  Yasunori Takei

IPC: B41J2/175 ,  B41J29/02

Abstract: An ink-jet printing apparatus includes an ink-cartridge mounting unit to which an ink cartridge having a first ink chamber containing ink is to be mounted, and a second ink chamber. The second ink chamber stores ink supplied from the first ink chamber. The ink-jet printing apparatus is configured such that, in a case where the ink cartridge is mounted to the ink-cartridge mounting unit, the second ink chamber can be viewed from outside of the ink-jet printing apparatus. An equation 0.5 L ≤ d ≤ 1.2 L is satisfied, where d is a length of the second ink chamber, and L is a length of the ink cartridge in a direction in which the ink cartridge is inserted into the ink-jet printing apparatus.

公开(公告)号：US20200073292A1

公开(公告)日：2020-03-05

申请号：US16555137

申请日：2019-08-29

Applicant: CANON KABUSHIKI KAISHA

Inventor： Ryuhei Ogawa ,  Hiroshi Miyamoto

IPC: G03G15/16 ,  G03G15/20 ,  B23K26/067

Abstract: An image heating apparatus includes a first rotatable member, a second rotatable member, a laser light irradiation portion, and a cleaning member. The cleaning member is provided in a position other than a position where laser light emitted from the laser light irradiation portion toward the nip is blocked.

公开(公告)号：US12222665B2

公开(公告)日：2025-02-11

申请号：US18168492

申请日：2023-02-13

Applicant: CANON KABUSHIKI KAISHA

Inventor： Yasuharu Toratani ,  Akiyoshi Shinagawa ,  Hiroshi Miyamoto ,  Daigo Matsuura ,  Hiroki Kawai ,  Ayano Ogata ,  Asuna Fukamachi ,  Masanobu Tanaka ,  Misa Kawashima

IPC: G03G15/20

Abstract: A fixing device includes a fixing belt configured to heat a recording material, a pressure member configured to press the fixing belt, and a sliding member configured to be in sliding contact with an inner peripheral surface of the fixing belt and being opposed to the pressure member. The pressure member and the fixing belt form a fixing nip portion, and heat and pressure are applied to the recording material at the fixing nip portion to fix a toner image onto the recording material. The sliding member includes a plurality of protrusions on a surface of the sliding member that is in sliding contact with the inner peripheral surface of the fixing belt. The following expressions are satisfied: The fixing belt satisfies the prescribed formula.

公开(公告)号：US12174564B2

公开(公告)日：2024-12-24

申请号：US18461428

申请日：2023-09-05

Applicant: CANON KABUSHIKI KAISHA

Inventor： Yasuharu Toratani ,  Shutaro Saito ,  Keisuke Yoshida ,  Yuya Yamada ,  Taku Ashida ,  Asuna Fukamachi ,  Shohei Tsuzaki ,  Yusuke Yamaguchi ,  Hiroshi Miyamoto

IPC: G03G15/20

Abstract: An image forming apparatus includes a first rotatable member, a second rotatable member, an air nozzle, and a pipe. The pipe includes a portion provided in a range overlapping with the first rotatable member and making one reciprocation or more in a case that when a direction crossing a feeding direction of a recording material fed in a nip is a widthwise direction of the first rotatable member, the pipe is viewed in a direction perpendicular to the widthwise direction.

公开(公告)号：US11982961B2

公开(公告)日：2024-05-14

申请号：US18166651

申请日：2023-02-09

Applicant: CANON KABUSHIKI KAISHA

Inventor： Hiroki Kawai ,  Yasuharu Toratani ,  Hiroshi Miyamoto ,  Akiyoshi Shinagawa ,  Ayano Ogata ,  Daigo Matsuura ,  Misa Kawashima ,  Masanobu Tanaka ,  Asuna Fukamachi

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G15/2025

Abstract: A fixing device includes an endless belt, a rotatable pressing member, a pad member inside of the belt, and a sliding member held by the pad member and sliding on an inner circumferential surface of the belt in a nip. The rotatable pressing member nips and feeds a recording material in the nip in cooperation with the belt and fixes a toner image on the recording material by applying heat and pressure. The sliding member includes a base material layer on which a plurality of projections projecting toward the rotatable pressing member are formed on a side sliding with the belt and a sliding layer provided on an outer surface of the plurality of projections. A shape of a surface of the sliding layer is a curved surface and a radius of curvature R of the curved surface satisfies 300 μm≤R≤850 μm.