公开(公告)号：US10527972B2

公开(公告)日：2020-01-07

申请号：US16383192

申请日：2019-04-12

Applicant: CANON KABUSHIKI KAISHA

Inventor： Shuji Saito ,  Ken Yokoyama ,  Noriaki Egawa ,  Koujirou Izumidate ,  Masatsugu Toyonori

IPC: G03G15/14 ,  G03G15/00 ,  G03G15/16

Abstract: An intermediate transfer belt includes, on a surface in contact with a photosensitive drum and a cleaning blade, a plurality of grooves formed along a moving direction of the intermediate transfer belt in a width direction which intersects the moving direction of the intermediate transfer belt. Further, the intermediate transfer belt includes a plurality of first regions in which adjacent grooves in the width direction are arranged at a predetermined interval, and a second region which is positioned between the plurality of first regions and in which an interval between adjacent grooves in the width direction is different from the predetermined interval. The second region is arranged outside, in the width direction of the intermediate transfer belt, a range in which a patch toner is to be formed in concentration correction.

公开(公告)号：US20160187815A1

公开(公告)日：2016-06-30

申请号：US14980542

申请日：2015-12-28

Applicant: CANON KABUSHIKI KAISHA

Inventor： Kazuhiro Funatani ,  Masanori Asai ,  Shuji Saito ,  Hiroyuki Seki ,  Yasutaka Yagi ,  Tetsuichiro Fujimoto

IPC: G03G15/00

CPC classification number: G03G15/161 ,  G03G2215/1661

Abstract: An image forming apparatus includes a controller for forming an adjustment toner image in a region corresponding to between a first region corresponding to a preceding sheet and a second region corresponding to a subsequent sheet, wherein the controller selectively executes a first mode for setting as a first length a gap between the adjustment image and a trailing edge of the first region and for setting as a second length a gap between the adjustment toner image and a leading end of the second region, or a second mode for setting as a third length a gap between the adjustment toner image and the trailing edge of the first region and for setting as a fourth length a gap between the adjustment image and the leading end of the second region. The third is shorter than the first, and the fourth length is longer than the first length.

Abstract translation: 图像形成装置包括：控制器，用于在对应于与前一片材相对应的第一区域和对应于后续片材的第二区域之间的区域中形成调节调色剂图像，其中所述控制器选择性地执行第一模式以设置为第一 使调整图像和第一区域的后缘之间的间隙长度，并且将第二长度设置为调节调色剂图像与第二区域的前端之间的间隙，或将第二长度设定为第三长度的间隔 在调节调色剂图像和第一区域的后缘之间并且用于将调整图像和第二区域的前端之间的间距设置为第四长度。 第三个短于第一个长度，第四个长度比第一个长度长。

公开(公告)号：US20160132010A1

公开(公告)日：2016-05-12

申请号：US15001489

申请日：2016-01-20

Applicant: CANON KABUSHIKI KAISHA

Inventor： Noriaki Sato ,  Yasutaka Yagi ,  Hiroshi Kataoka ,  Eiji Uekawa ,  Keisuke Mochizuki ,  Shuji Saito ,  Naoto Tsuchihashi

IPC: G03G15/20

CPC classification number: G03G15/2064 ,  G03G15/2053

Abstract: A fixing device includes: a cylindrical film; a nip forming member; and a back-up member for forming a nip. The nip forming member includes a projected portion. A projection amount of the projected portion is smaller in an end portion region positioned at an end portion of the projected portion with respect to a generatrix direction of the film than in a central region positioned at a central portion of the projected portion with respect to the generatrix direction, at least a part of the end portion region being inside a feeding region of a maximum-sized recording material usable in the fixing device. With respect to the recording material feeding direction, a width of the part, of the projected portion, inside the nip is broader in the end portion region than in the central region.

公开(公告)号：US20160026131A1

公开(公告)日：2016-01-28

申请号：US14808428

申请日：2015-07-24

Applicant: CANON KABUSHIKI KAISHA

Inventor： Noriaki Sato ,  Yasutaka Yagi ,  Hiroshi Kataoka ,  Eiji Uekawa ,  Keisuke Mochizuki ,  Shuji Saito ,  Naoto Tsuchihashi

IPC: G03G15/20

CPC classification number: G03G15/2064 ,  G03G15/2053

Abstract: A fixing device includes: a cylindrical film; a nip forming member; and a back-up member for forming a nip. The nip forming member includes a projected portion. A projection amount of the projected portion is smaller in an end portion region positioned at an end portion of the projected portion with respect to a generatrix direction of the film than in a central region positioned at a central portion of the projected portion with respect to the generatrix direction, at least a part of the end portion region being inside a feeding region of a maximum-sized recording material usable in the fixing device. With respect to the recording material feeding direction, a width of the part, of the projected portion, inside the nip is broader in the end portion region than in the central region.

Abstract translation: 定影装置包括：圆柱形膜; 辊隙形成构件; 以及用于形成辊隙的支撑构件。 辊隙形成构件包括突出部分。 突出部分的突出量相对于膜的母线方向位于突出部分的端部的端部区域中比在位于突出部分的中心部分的中心区域相对于 母线方向，端部区域的至少一部分位于可用于定影装置的最大尺寸记录材料的进给区域的内部。 相对于记录材料供给方向，在辊隙中的突出部分的部分的宽度在端部区域比在中心区域宽。

公开(公告)号：US11841650B2

公开(公告)日：2023-12-12

申请号：US17552249

申请日：2021-12-15

Applicant: CANON KABUSHIKI KAISHA

Inventor： Shuji Saito ,  Noriaki Egawa ,  Masatsugu Toyonori

IPC: G03G15/16

CPC classification number: G03G15/162 ,  G03G15/161

Abstract: A transfer belt, to be used in a state of being in contact with a cleaning member and an image carrier, and to which a developer image is to be transferred from the image carrier, includes a surface layer and a base layer. The surface layer is in contact with the image carrier and the cleaning member. The base layer disposed at a position more apart from the image carrier and the cleaning member than the surface layer. The surface layer is provided with grooves formed by transferring a predetermined mold shape and extending in a first direction along a moving direction of the transfer belt in an operating state. The arithmetic average roughness of the surface layer in a predetermined region is less than or equal to 0.2 μm.

公开(公告)号：US11835891B2

公开(公告)日：2023-12-05

申请号：US17938294

申请日：2022-10-05

Applicant: CANON KABUSHIKI KAISHA

Inventor： Shuji Saito ,  Hiroyuki Kadowaki ,  Hiroomi Kojima

IPC: G03G15/16 ,  G03G15/00

CPC classification number: G03G15/162 ,  G03G15/5054 ,  G03G2215/00059

Abstract: An intermediate transfer belt that can bear a toner image includes a first layer and a second layer. The first layer includes a first surface located on an outer peripheral surface side of the first layer. The second layer is provided on a side of the first surface, transmits light, and includes a second surface. The first surface includes first grooves that (i) extend in a first direction in a circumferential direction of the intermediate transfer belt and (ii) are arranged in a width direction of the intermediate transfer belt that is orthogonal to the circumferential direction. The second surface is located on an outer peripheral surface side of the second layer, contacts a toner image, and includes second grooves that extend in a second direction in the circumferential direction. The first grooves includes 80 or more grooves per 1-mm length in the width direction in the first surface.

公开(公告)号：US09658580B2

公开(公告)日：2017-05-23

申请号：US14528073

申请日：2014-10-30

Applicant: CANON KABUSHIKI KAISHA

Inventor： Shuji Saito ,  Naoto Tsuchihashi ,  Yoshisuke Kasuya

IPC: G03G15/20 ,  G03G21/20

CPC classification number: G03G15/2017 ,  G03G21/206

Abstract: An image forming apparatus includes: a fixing portion for heat-fixing the image on a recording material; a duct including a suction port for sucking air from outside of the image forming apparatus and an exhaust port for delivering the air to the outside of the image forming apparatus; and a fan for forming a flow of the air from the suction port toward the exhaust port in the duct. The duct includes a merging portion, between the suction port and the exhaust port, for merging the air from the neighborhood of the fixing portion with the flow of the air by taking the air from the neighborhood of the fixing portion inside the duct. The recording material on which the image is fixed at the fixing portion is cooled by the air delivering through the exhaust port.

公开(公告)号：US09599935B2

公开(公告)日：2017-03-21

申请号：US15007597

申请日：2016-01-27

Applicant: CANON KABUSHIKI KAISHA

Inventor： Masanori Asai ,  Kazuhiro Funatani ,  Hiroyuki Seki ,  Shuji Saito ,  Yasutaka Yagi ,  Tetsuichiro Fujimoto

IPC: G03G15/16 ,  G03G21/00

CPC classification number: G03G15/161 ,  G03G21/0076 ,  G03G2215/0132 ,  G03G2221/001

Abstract: In an adjustment step, an adjustment purpose toner image is formed on an intermediate transfer belt, and the adjustment purpose toner image is removed from the intermediate transfer belt by a cleaning member contacting the intermediate transfer belt and through an electrostatic cleaning step. This adjustment step is executed in a state where a toner attachment amount on a charging member is switched from a first limit value, which is allowed in the image forming step to a second limit value, which is allowed immediately before executing the adjustment step. This switching is performed by the execution of a toner discharging step, where a power supply changes the state of applying voltage to the charging member from that in the electrostatic cleaning step, so that toner attached to the charging member is transferred to the intermediate transfer belt.

公开(公告)号：US09280108B2

公开(公告)日：2016-03-08

申请号：US14808428

申请日：2015-07-24

Applicant: CANON KABUSHIKI KAISHA

Inventor： Noriaki Sato ,  Yasutaka Yagi ,  Hiroshi Kataoka ,  Eiji Uekawa ,  Keisuke Mochizuki ,  Shuji Saito ,  Naoto Tsuchihashi

IPC: G03G15/20

CPC classification number: G03G15/2064 ,  G03G15/2053

Abstract: A fixing device includes: a cylindrical film; a nip forming member; and a back-up member for forming a nip. The nip forming member includes a projected portion. The projection amount of the projected portion is smaller in an end portion region positioned at an end portion of the projected portion with respect to a generatrix direction of the film than in a central region positioned at a central portion of the projected portion with respect to the generatrix direction, at least a part of the end portion region being inside a feeding region of a maximum-sized recording material usable in the fixing device. With respect to the recording material feeding direction, the width of the part of the projected portion inside the nip is broader in the end portion region than in the central region.

Abstract translation: 定影装置包括：圆柱形膜; 辊隙形成构件; 以及用于形成辊隙的支撑构件。 辊隙形成构件包括突出部分。 突出部分的突出量在位于突出部分的端部相对于膜的母线方向的端部区域中小于在位于突出部分的中心部分的中心区域相对于 母线方向，端部区域的至少一部分位于可用于定影装置的最大尺寸记录材料的进给区域的内部。 相对于记录材料供给方向，辊隙内的突出部分的部分的宽度在端部区域比在中心区域宽。

公开(公告)号：US09091977B2

公开(公告)日：2015-07-28

申请号：US13659266

申请日：2012-10-24

Applicant: CANON KABUSHIKI KAISHA

Inventor： Shuji Saito ,  Hiroyuki Sakakibara ,  Yusuke Nakashima ,  Atsuhiko Yamaguchi

IPC: G03G15/20 ,  H05B3/46

CPC classification number: G03G15/2053 ,  G03G15/2021 ,  G03G15/2042 ,  G03G15/2057 ,  H05B3/26 ,  H05B3/46

Abstract: The image heating apparatus includes an endless belt, a connector and a heater including an insulated substrate, a heat generating resistor, an electrode brought into contact with a contact of the connector; and a conductor provided on a surface of the insulated substrate opposite to a surface on which the electrode wherein the insulated substrate includes multiple through holes electrically connecting the electrode and the conductor to each other, in an area in which the electrode is provided, wherein the distances between a position on the electrode brought into contact with the contact and the multiple through holes are substantially equal to each other, so that burning of the through hole and conduction failure caused by the burning can be prevented.

Abstract translation: 图像加热装置包括环形带，连接器和加热器，其包括绝缘基板，发热电阻器，与连接器的触点接触的电极; 以及设置在所述绝缘基板的与所述电极相对的表面上的导体，所述导体在所述绝缘基板的所述电极的所述电极的区域中包括将所述电极和所述导体彼此电连接的多个通孔， 与触点接触的电极上的位置和多个通孔之间的距离基本上彼此相等，从而可以防止通孔的燃烧和由燃烧引起的导电故障。