公开(公告)号：US12117751B2

公开(公告)日：2024-10-15

申请号：US18170787

申请日：2023-02-17

Applicant: CANON KABUSHIKI KAISHA

Inventor： Keisuke Yoshida ,  Youichi Chikugo ,  Kenichi Tanaka ,  Hidekazu Tatezawa ,  Rikiya Takemasa ,  Takeshi Kozuma ,  Mikihiko Watanabe ,  Taku Ashida ,  Shutaro Saito ,  Yuya Yamada

IPC: G03G15/20

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

Abstract: A fixing apparatus includes a belt, a rotary member, a pad member, and a slide member. A distance in the conveyance direction between a first position and a second position is 3.0 mm or less. The first position is a downstream edge of a tip of a projection positioned most downstream in a direction of rotation of the belt. The second position is an upstream edge, in the direction of rotation of the belt, of the guide portion that contacts with the inner circumference surface of the belt. A distance in the pressing direction between a third position and a fourth position is 0.4 mm or more and 2.0 mm or less. The third position is the tip of the projection positioned most downstream in the direction of rotation of the belt. The fourth position is the same position as the second position.

公开(公告)号：US12111594B2

公开(公告)日：2024-10-08

申请号：US18063369

申请日：2022-12-08

Applicant: CANON KABUSHIKI KAISHA

Inventor： Taku Ashida ,  Youichi Chikugo ,  Hidekazu Tatezawa ,  Kenichi Tanaka ,  Rikiya Takemasa ,  Takeshi Kozuma ,  Mikihiko Watanabe

IPC: G03G15/20

CPC classification number: G03G15/2064

Abstract: A fixing device includes a heating unit, a pressure unit, a first frame, an urging member, a support member, and a fixing member. The heating unit heats toner carried by a recording medium. The pressure unit pressurizes the heating unit to form a nip portion with the heating unit and fixes a toner image onto the recording medium at the nip portion with the heating unit. The first frame moves to a first position where the heating unit is exposed and moves to a second position where the heating unit is covered. The urging member urges the heating unit to position the heating unit. The support member supports one end of the urging member and the fixing member fixes the support member to the fixing device.

公开(公告)号：US12085875B2

公开(公告)日：2024-09-10

申请号：US18152599

申请日：2023-01-10

Applicant: CANON KABUSHIKI KAISHA

Inventor： Youichi Chikugo ,  Rikiya Takemasa ,  Kenichi Tanaka ,  Takeshi Kozuma ,  Hidekazu Tatezawa ,  Taku Ashida ,  Mikihiko Watanabe

IPC: G03G15/20

CPC classification number: G03G15/2025 ,  G03G15/2053

Abstract: A fixing apparatus includes a fixing belt that is rotatable and endless, a pad, a pressing rotary member, and a scraping member. The pad contacts an inner circumferential surface of the fixing belt. The pressing rotary member contacts the pad via the fixing belt to form a nip portion. In cooperation with the fixing belt, the pressing rotary member fixes a toner image to a recording material by applying heat and pressure to the recording material at the nip portion. A lubricant is applied to the inner circumferential surface of the fixing belt. The scraping member includes an inclined portion inclined downward toward an outer side of the fixing belt and contacting an edge portion of the fixing belt to scrape the lubricant. The inclined portion is in contact with the edge portion of the fixing belt in an area where an outer surface of the fixing belt faces upward.

公开(公告)号：US12025936B2

公开(公告)日：2024-07-02

申请号：US18172849

申请日：2023-02-22

Applicant: CANON KABUSHIKI KAISHA

Inventor： Shutaro Saito ,  Youichi Chikugo ,  Hidekazu Tatezawa ,  Rikiya Takemasa ,  Takeshi Kozuma ,  Mikihiko Watanabe ,  Taku Ashida ,  Keisuke Yoshida ,  Yuya Yamada ,  Kenichi Tanaka

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G15/2025 ,  G03G15/2064 ,  G03G2215/2032

Abstract: A fixing apparatus includes a belt, a steering roller, a slide member, and a pressing rotation member that forms a nip portion by pressing the belt and is disposed to face the slide member. The belt applies heat to a recording material and has an inner circumferential surface that receives a lubricant applied onto the inner circumferential surface. The pressing rotation member fixes a toner image onto the recording material by applying heat and pressure to an unfixed toner image in the nip portion, in cooperation with the belt. An end portion of the belt on one end side in a belt width direction takes a position outside an end portion of the slide member on the one end side and a position inside the end portion of the slide member on the one end side while the steering roller is in operation.

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：US11921449B2

公开(公告)日：2024-03-05

申请号：US18170164

申请日：2023-02-16

Applicant: CANON KABUSHIKI KAISHA

Inventor： Kenichi Tanaka ,  Youichi Chikugo ,  Hidekazu Tatezawa ,  Rikiya Takemasa ,  Takeshi Kozuma ,  Mikihiko Watanabe ,  Taku Ashida

IPC: G03G15/20

CPC classification number: G03G15/2053

Abstract: A fixing apparatus includes a fixing belt, a slide member, an opposing member, and a retaining member. The retaining member includes, in a groove portion, a bottom surface portion that is in contact with an opposite surface of the slide member from a slide surface, a side surface portion that is formed on a downstream side of the groove portion in a conveyance direction and intersecting the bottom surface portion, and a continuous portion that is formed between the bottom surface portion and the side surface portion. The slide member includes an abutment portion configured to abut against the side surface portion at a position downstream from a downstream edge of the opposite surface when the slide member is slidden against the fixing belt such that the downstream edge of the opposite surface is positioned upstream from the continuous portion in the conveyance direction.