公开(公告)号：US12025931B2

公开(公告)日：2024-07-02

申请号：US17487017

申请日：2021-09-28

Applicant: CANON KABUSHIKI KAISHA

Inventor： Tatsuo Yasui ,  Junichi Moteki ,  Akiyoshi Shinagawa ,  Takuma Tadomi ,  Ikuo Nakamoto ,  Toru Katsumi ,  Takahiro Ohnishi

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G15/2064 ,  G03G2215/00679 ,  G03G2215/2038

Abstract: A fixing unit includes an endless belt, a heating unit configured to heat the belt, a pressure rotary member configured to form a fixing nip portion that nips and conveys a recording material with the belt, a pad configured to press the belt toward the pressure rotary member, a sliding sheet provided on the pad and configured to slide against the belt, a plate-like member configured to fix the sliding sheet to the pad, the sliding sheet being fixed in a manner sandwiched between the plate-like member and the pad, and fixing tools configured to fix the plate-like member at a plurality of positions along a longitudinal direction of the plate-like member. A width of the sliding sheet is wider than a width of the fixing nip portion and narrower than a width of the plate-like member in the longitudinal direction.

公开(公告)号：US11675297B2

公开(公告)日：2023-06-13

申请号：US17541093

申请日：2021-12-02

Applicant: CANON KABUSHIKI KAISHA

Inventor： Tatsuo Yasui ,  Koji Takematsu ,  Keiichi Mizukami ,  Takuya Hasegawa ,  Tomoaki Tanto ,  Kazuki Tada

IPC: G03G15/20

CPC classification number: G03G15/2053

Abstract: A fusing apparatus having a heating rotary member, a pressing rotary member, a flange, a fusing frame, a pressing member, and a plate. The heating rotary member heats a recording medium and includes a heater and a film that rotates. The pressing rotary member rotates to press an outer circumferential surface of the film and performs fusing of a toner image on the recording medium. The flange supports the heater. The fusing frame supports the pressing rotary member and has a positioning hole. The pressing member presses the flange. The plate includes a pressure receiving portion and an insertion portion. The pressure receiving portion is pressed by the pressing member and the insertion portion is inserted into a positioning hole and positioned in a first state. The insertion portion is removed from the positioning hole in a second state where the pressing member further contracts from the first state.

公开(公告)号：US20220011698A1

公开(公告)日：2022-01-13

申请号：US17487017

申请日：2021-09-28

Applicant: CANON KABUSHIKI KAISHA

Inventor： Tatsuo Yasui ,  Junichi Moteki ,  Akiyoshi Shinagawa ,  Takuma Tadomi ,  Ikuo Nakamoto ,  Toru Katsumi ,  Takahiro Ohnishi

IPC: G03G15/20

Abstract: A fixing unit includes an endless belt, a heating unit configured to heat the belt, a pressure rotary member configured to form a fixing nip portion that nips and conveys a recording material with the belt, a pad configured to press the belt toward the pressure rotary member, a sliding sheet provided on the pad and configured to slide against the belt, a plate-like member configured to fix the sliding sheet to the pad, the sliding sheet being fixed in a manner sandwiched between the plate-like member and the pad, and fixing tools configured to fix the plate-like member at a plurality of positions along a longitudinal direction of the plate-like member. A width of the sliding sheet is wider than a width of the fixing nip portion and narrower than a width of the plate-like member in the longitudinal direction.

公开(公告)号：US11163250B2

公开(公告)日：2021-11-02

申请号：US16600849

申请日：2019-10-14

Applicant: CANON KABUSHIKI KAISHA

Inventor： Tatsuo Yasui ,  Junichi Moteki ,  Akiyoshi Shinagawa ,  Takuma Tadomi ,  Ikuo Nakamoto ,  Toru Katsumi ,  Takahiro Ohnishi

IPC: G03G15/20

Abstract: A fixing unit includes an endless belt, a heating unit configured to heat the belt, a pressure rotary member configured to form a fixing nip portion that nips and conveys a recording material with the belt, a pad configured to press the belt toward the pressure rotary member, a sliding sheet provided on the pad and configured to slide against the belt, a plate-like member configured to fix the sliding sheet to the pad, the sliding sheet being fixed in a manner sandwiched between the plate-like member and the pad, and fixing tools configured to fix the plate-like member at a plurality of positions along a longitudinal direction of the plate-like member. A width of the sliding sheet is wider than a width of the fixing nip portion and narrower than a width of the plate-like member in the longitudinal direction.

公开(公告)号：US20180217553A1

公开(公告)日：2018-08-02

申请号：US15880727

申请日：2018-01-26

Applicant: CANON KABUSHIKI KAISHA

Inventor： Tatsuo Yasui

IPC: G03G21/16 ,  G03G15/00

CPC classification number: G03G21/1695 ,  G03G15/657 ,  G03G15/70 ,  G03G21/1638

Abstract: An image forming apparatus includes a main assembly; a transfer portion; a fixing portion; an opening provided on the main assembly; a door; a first guiding member provided in the main assembly and a second guiding member provided on the door and is interlaced with the first guiding member; a supporting plate supporting the first guiding member; the first guiding member has a convex curved surface of a shape such that a force received by the first guiding member when the door is opened with a sheet jammed between the first and second guiding members is in a direction of urging the first guiding member to the supporting plate.

公开(公告)号：US20240295845A1

公开(公告)日：2024-09-05

申请号：US18661812

申请日：2024-05-13

Applicant: CANON KABUSHIKI KAISHA

Inventor： Tatsuo Yasui ,  Junichi Moteki ,  Akiyoshi Shinagawa ,  Takuma Tadomi ,  Ikuo Nakamoto ,  Toru Katsumi ,  Takahiro Ohnishi

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G15/2064 ,  G03G2215/00679 ,  G03G2215/2038

Abstract: A fixing unit includes an endless belt, a heating unit configured to heat the belt, a pressure rotary member configured to form a fixing nip portion that nips and conveys a recording material with the belt, a pad configured to press the belt toward the pressure rotary member, a sliding sheet provided on the pad and configured to slide against the belt, a plate-like member configured to fix the sliding sheet to the pad, the sliding sheet being fixed in a manner sandwiched between the plate-like member and the pad, and fixing tools configured to fix the plate-like member at a plurality of positions along a longitudinal direction of the plate-like member. A width of the sliding sheet is wider than a width of the fixing nip portion and narrower than a width of the plate-like member in the longitudinal direction.

公开(公告)号：US20220179342A1

公开(公告)日：2022-06-09

申请号：US17541093

申请日：2021-12-02

Applicant: CANON KABUSHIKI KAISHA

Inventor： Tatsuo Yasui ,  Koji Takematsu ,  Keiichi Mizukami ,  Takuya Hasegawa ,  Tomoaki Tanto ,  Kazuki Tada

IPC: G03G15/20

Abstract: A fusing apparatus having a heating rotary member, a pressing rotary member, a flange, a fusing frame, a pressing member, and a plate. The heating rotary member heats a recording medium and includes a heater and a film that rotates. The pressing rotary member rotates to press an outer circumferential surface of the film and performs fusing of a toner image on the recording medium. The flange supports the heater. The fusing frame supports the pressing rotary member and has a positioning hole. The pressing member presses the flange. The plate includes a pressure receiving portion and an insertion portion. The pressure receiving portion is pressed by the pressing member and the insertion portion is inserted into a positioning hole and positioned in a first state. The insertion portion is removed from the positioning hole in a second state where the pressing member further contracts from the first state.

公开(公告)号：US20180113405A1

公开(公告)日：2018-04-26

申请号：US15724659

申请日：2017-10-04

Applicant: CANON KABUSHIKI KAISHA

Inventor： Tatsuo Yasui

IPC: G03G15/20

CPC classification number: G03G15/2028 ,  G03G2215/2035

Abstract: An image heating apparatus includes an endless belt in contact with a toner image on a recording material, a separation member that separates the recording material from the endless belt, a regulation member that regulates a longitudinal position of the endless belt, and an interlocking mechanism. The interlocking mechanism interlocks a movement of an end portion of the separation member on the same side as a first edge of the endless belt with movement of the regulation member. The interlocking mechanism performs interlocking so that, when the regulation member moves toward an upstream in a conveyance direction, the end portion of the separation member moves toward the upstream in the conveyance direction.

公开(公告)号：US11740573B2

公开(公告)日：2023-08-29

申请号：US17544765

申请日：2021-12-07

Applicant: CANON KABUSHIKI KAISHA

Inventor： Koji Takematsu ,  Tatsuo Yasui ,  Keiichi Mizukami ,  Takuya Hasegawa ,  Tomoaki Tanto ,  Kazuki Tada

IPC: G03G15/20 ,  G03G21/16

CPC classification number: G03G15/2017 ,  G03G15/2064 ,  G03G21/1685 ,  G03G15/2053 ,  G03G2215/2035 ,  G03G2221/1639

Abstract: A fixing device includes a first rotatable member with a heater, a second rotatable member contacting the first rotatable member and forming a fixing nip, a pressing unit pressing the first rotatable member to the second rotatable member in a pressing direction, a pair of side boards disposed with a space in the widthwise direction, and first, second and third stays supporting the pair of side boards. The first stay is provided upstream of a center of the fixing nip in the pressing direction and upstream of the center in a feeding direction of a recording material. The second stay is provided upstream of the center in the pressing direction and downstream of the center in the feeding direction. The third stay is provided downstream of the center in the pressing direction and at least one of upstream and downstream of the center in the feeding direction.

公开(公告)号：US20220253009A1

公开(公告)日：2022-08-11

申请号：US17544765

申请日：2021-12-07

Applicant: CANON KABUSHIKI KAISHA

Inventor： Koji Takematsu ,  Tatsuo Yasui ,  Keiichi Mizukami ,  Takuya Hasegawa ,  Tomoaki Tanto ,  Kazuki Tada

IPC: G03G15/20

Abstract: A fixing device includes a first rotatable member with a heater, a second rotatable member contacting the first rotatable member and forming a fixing nip, a pressing unit pressing the first rotatable member to the second rotatable member in a pressing direction, a pair of side boards disposed with a space in the widthwise direction, and first, second and third stays supporting the pair of side boards. The first stay is provided upstream of a center of the fixing nip in the pressing direction and upstream of the center in a feeding direction of a recording material. The second stay is provided upstream of the center in the pressing direction and downstream of the center in the feeding direction. The third stay is provided downstream of the center in the pressing direction and at least one of upstream and downstream of the center in the feeding direction.