公开(公告)号：US10261429B2

公开(公告)日：2019-04-16

申请号：US15861772

申请日：2018-01-04

Applicant: CANON KABUSHIKI KAISHA

Inventor： Akeshi Asaka ,  Shigeaki Takada ,  Akiyoshi Shinagawa ,  Koichi Kakubari ,  Hiroto Ito ,  Yutaka Arai

IPC: G03G5/043 ,  G03G15/20

Abstract: Provided is an electrophotographic member capable of reducing a rise time of a fixing apparatus and preventing occurrence of a defective image due to an electrostatic offset. The electrophotographic member has a substrate, an elastic layer, and a surface layer containing a fluororesin, in this order, the elastic layer has a communication hole of which pores are communicated with each other, and an ionic conductive agent is adhered to an inner wall of the communication hole.

公开(公告)号：US20180150004A1

公开(公告)日：2018-05-31

申请号：US15882184

申请日：2018-01-29

Applicant: CANON KABUSHIKI KAISHA

Inventor： Masanobu Tanaka ,  Oki Kitagawa ,  Akiyoshi Shinagawa

IPC: G03G15/20

CPC classification number: G03G15/2075 ,  G03G15/2017 ,  G03G15/2025 ,  G03G15/2028

Abstract: An image forming apparatus includes an image forming portion forming a toner image on a sheet, a rotatable heating member and a rotatable pressing member for fixing, at a nip, the toner image formed on the sheet by the image forming portion, an executing portion for executing a cleaning mode for cleaning the rotatable heating member by introducing, into the nip, the sheet on which a predetermined toner image is formed by the image forming portion, a re-introducing mechanism for re-introducing the sheet, into the nip, which has passed through the nip and then has been turned upside down, and a shifting mechanism for shifting a sheet position so that when a single sheet is introduced twice into the nip in the cleaning mode by using the re-introducing mechanism, positional relationships of a first-time sheet and a second-time sheet relative to the rotatable heating member with respect to a widthwise direction of the rotatable heating member are made different from each other.

公开(公告)号：US09791812B2

公开(公告)日：2017-10-17

申请号：US15260696

申请日：2016-09-09

Applicant: CANON KABUSHIKI KAISHA

Inventor： Akiyoshi Shinagawa

IPC: G03G15/20

CPC classification number: G03G15/2057 ,  G03G15/2053 ,  G03G15/206 ,  G03G2215/00679

Abstract: A rotatable feeding member for feeding a recording material includes a surface layer formed of a resin material, and a character portion including characters selected from alphabetical and numeral characters made visible by recessing the surface layer, wherein the characters are arranged along a circumferential direction of the rotatable feeding member. The characters are slanted with respect to a longitudinal direction of the rotatable feeding member.

公开(公告)号：US20170090370A1

公开(公告)日：2017-03-30

申请号：US15260696

申请日：2016-09-09

Applicant: CANON KABUSHIKI KAISHA

Inventor： Akiyoshi Shinagawa

IPC: G03G15/20

CPC classification number: G03G15/2057 ,  G03G15/2053 ,  G03G15/206 ,  G03G2215/00679

Abstract: A rotatable feeding member for feeding a recording material includes a surface layer formed of a resin material, and a character portion including characters selected from alphabetical and numeral characters made visible by recessing the surface layer, wherein the characters are arranged along a circumferential direction of the rotatable feeding member. The characters are slanted with respect to a longitudinal direction of the rotatable feeding member.

公开(公告)号：US20150338794A1

公开(公告)日：2015-11-26

申请号：US14716279

申请日：2015-05-19

Applicant: CANON KABUSHIKI KAISHA

Inventor： Oki Kitagawa ,  Akiyoshi Shinagawa ,  Masanobu Tanaka

IPC: G03G15/20

CPC classification number: G03G15/205 ,  G03G15/2017 ,  G03G15/2032

Abstract: An image forming apparatus includes heating and pressing rollers for fixing a toner image; a contacting and spacing portion for contacting and spacing between the rollers; an air feeder for cooling the pressing roller during a job; a guide for the sheet having been subjected to an image fixing process; an acquiring portion for acquiring the temperature of the guide: and an executing portion for executing a warming-up process of the heating roller and the pressing roller to raise temperatures of the heating roller and the pressing roller, wherein the executing portion controls the contacting and spacing portion and the air feeder so that the air is fed toward the guide through between the heating roller and the pressing roller at least in a part of the warming-up process, when the temperature is lower than a predetermined temperature upon activation of a main voltage source.

Abstract translation: 图像形成装置包括用于固定调色剂图像的加热和加压辊; 用于在辊之间接触和间隔的接触和间隔部分; 用于在作业期间冷却加压辊的空气供给器; 用于已经进行图像定影处理的纸张的引导件; 用于获取引导件的温度的获取部分和执行部分，用于执行加热辊和加压辊的预热过程以升高加热辊和加压辊的温度，其中执行部分控制接触和 间隔部分和空气供给器，使得至少在预热过程的一部分中，当主体激活时，当温度低于预定温度时，空气通过加热辊和加压辊之间通过导向件供给 电压源。

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：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.

公开(公告)号：US10409203B2

公开(公告)日：2019-09-10

申请号：US15476434

申请日：2017-03-31

Applicant: CANON KABUSHIKI KAISHA

Inventor： Masanobu Tanaka ,  Oki Kitagawa ,  Akiyoshi Shinagawa

IPC: G03G15/20

Abstract: An image forming apparatus includes an executing portion for cleaning a rotatable heating member by introducing, into a nip, sheets, of a plurality of sheets, on which a predetermined toner image is formed by an image forming portion, a changing mechanism for making positional relationships of first and second sheets, of the plurality of sheets, relative to the rotatable heating member, different from each other with respect to a widthwise direction of the rotatable heating member when the first and second sheets are successively introduced into the nip in a cleaning mode, and a re-introducing mechanism for re-introducing the first and second sheets into the nip, the first and second sheets having passed through the nip and having been turned upside down, wherein the changing mechanism changes the relative positional relationship of the first and second sheets, which are turned upside down, relative to the rotatable heating member.

公开(公告)号：US10031455B2

公开(公告)日：2018-07-24

申请号：US15882184

申请日：2018-01-29

Applicant: CANON KABUSHIKI KAISHA

Inventor： Masanobu Tanaka ,  Oki Kitagawa ,  Akiyoshi Shinagawa

IPC: G03G15/20

Abstract: An image forming apparatus includes an image forming portion forming a toner image on a sheet, a rotatable heating member and a rotatable pressing member for fixing, at a nip, the toner image formed on the sheet by the image forming portion, an executing portion for executing a cleaning mode for cleaning the rotatable heating member by introducing, into the nip, the sheet on which a predetermined toner image is formed by the image forming portion, a re-introducing mechanism for re-introducing the sheet, into the nip, which has passed through the nip and then has been turned upside down, and a shifting mechanism for shifting a sheet position so that when a single sheet is introduced twice into the nip in the cleaning mode by using the re-introducing mechanism, positional relationships of a first-time sheet and a second-time sheet relative to the rotatable heating member with respect to a widthwise direction of the rotatable heating member are made different from each other.

公开(公告)号：US09494903B2

公开(公告)日：2016-11-15

申请号：US14876304

申请日：2015-10-06

Applicant: CANON KABUSHIKI KAISHA

Inventor： Akiyoshi Shinagawa ,  Oki Kitagawa ,  Masanobu Tanaka

IPC: G03G15/20 ,  G03G15/00

CPC classification number: G03G15/2028 ,  G03G15/2025 ,  G03G15/5016 ,  G03G2215/00531 ,  G03G2215/0129 ,  G03G2215/2032

Abstract: An image forming apparatus includes: an image forming device configured to form a toner image on a sheet; a fixing device configured to fix the toner image formed on the sheet by the image forming device at a nip; an executing portion configured to execute an operation in a cleaning mode for cleaning the fixing device by forming a predetermined toner image on a sheet using the image forming device and then by introducing the sheet into the nip; and a notifying device for notifying an operator that a maximum-width sheet usable in the image forming device is to be used in the operation in the cleaning mode.

Abstract translation: 图像形成装置包括：图像形成装置，被配置为在片材上形成调色剂图像; 定影装置，被配置为通过所述图像形成装置在辊隙处固定形成在所述片材上的调色剂图像; 执行部，被配置为通过使用所述图像形成装置在片材上形成预定的调色剂图像，然后将所述片材引入所述辊隙中来执行清洁模式中的操作以清洁所述定影装置; 以及通知装置，用于通知操作者在清洁模式下的操作中可以使用可用于图像形成装置中的最大宽度的纸张。