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：US20180348681A1

公开(公告)日：2018-12-06

申请号：US15988454

申请日：2018-05-24

Applicant: CANON KABUSHIKI KAISHA

Inventor： Yusuke Yamaguchi ,  Masayuki Tamaki ,  Hiroki Kawai ,  Ikuo Nakamoto

IPC: G03G15/20 ,  G03G15/00

CPC classification number: G03G15/2039 ,  G03G15/2053 ,  G03G15/5004

Abstract: An image heating apparatus includes an endless belt, a rotatable member, a heater, a temperature detecting portion, and a controller configured to control a temperature, at which energization to the heater is turned off, depending on a temperature rise rate per unit time of a detection temperature of the temperature detecting portion. When the temperature rise rate is a first rise rate, the controller turns off the energization to the heater in response to that the detection temperature reaches a first temperature. When the temperature rise rate is a second rise rate lower than the first rise rate, the controller turns off the energization to the heater in response to that the detection temperature reaches a second temperature higher than the first temperature.

公开(公告)号：US20180032010A1

公开(公告)日：2018-02-01

申请号：US15658728

申请日：2017-07-25

Applicant: CANON KABUSHIKI KAISHA

Inventor： Ikuo Nakamoto

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G15/206 ,  G03G2215/2009 ,  G03G2215/2022

Abstract: An image heating apparatus includes a pair of rotatable members at least one of which is an endless belt, the rotatable members forming a nip for hitting a toner image on a sheet; a first pad member and a second pad member provided along a feeding direction of the sheet and configured to urge the at least one of the endless belts toward the other one of the rotatable members from a inside of the at least one of the endless belts; a moving mechanism configured to move the second pad member to selectively contact both of the first pad member and the second pad member to the endless belt or contact only the first pad member to the endless belt; and a single sheet-like member slidable relative to an inner surface of the endless belt.

公开(公告)号：US09291958B2

公开(公告)日：2016-03-22

申请号：US14704017

申请日：2015-05-05

Applicant: CANON KABUSHIKI KAISHA

Inventor： Ikuo Nakamoto ,  Shigeru Hirano

IPC: G03G15/20

CPC classification number: G03G15/2028 ,  G03G15/2025 ,  G03G15/2039 ,  G03G15/6564

Abstract: An image heating apparatus includes: an endless belt; a heater for heating the belt, the heater forms a sliding portion between an inner surface of the belt and the heater; a rotatable member cooperative with the heater to sandwich the belt to form a nip between an outer peripheral surface of the belt and the rotatable member; a temperature detector provided on a surface of the heater relatively more remote from the sliding portion than the heater; a controller for controlling the timing of feeding the sheet to the nip on the basis of an output of the detector; and lubricant provided in at least a part of the sliding portion except for a range which is in an opposing relation with the detector. The sliding portion is free of the lubricant in the range.

Abstract translation: 图像加热装置包括：环形带; 用于加热带的加热器，加热器在带的内表面和加热器之间形成滑动部分; 与所述加热器协作以夹持所述带以在所述带的外周表面和所述可旋转构件之间形成辊隙的可旋转构件; 温度检测器，其设置在所述加热器的表面上比所述加热器相对更加远离所述滑动部分; 控制器，用于基于检测器的输出来控制将片材馈送到辊隙的定时; 以及设置在所述滑动部分的至少一部分中的除了与所述检测器相对的范围之外的润滑剂。 滑动部分不含润滑剂。

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：US11144008B2

公开(公告)日：2021-10-12

申请号：US16704757

申请日：2019-12-05

Applicant: CANON KABUSHIKI KAISHA

Inventor： Hiroto Ito ,  Ikuo Nakamoto ,  Toru Katsumi ,  Masayuki Tamaki ,  Akiyoshi Shinagawa ,  Koichi Kakubari

IPC: G03G21/20 ,  G03G15/20

Abstract: An image heating apparatus including first and second rotatable members, first and second cooling fans, an air blowing port, a shutter member, a shutter controller, and a fan controller. The first cooling fan is provided at a position opposing a first region which is a part of an end portion region of the first rotatable member on one end side. The second cooling fan is provided at a position opposing a second region which is part of the end portion region. The second region is adjacent to the first region with respect to the longitudinal direction. The shutter controller is configured to control a position of the shutter member depending on a width size of a recording material. The fan controller is configured to independently control an operation of the first cooling fan and an operation of the second cooling fan depending on the width size of the recording material.

公开(公告)号：US09042759B2

公开(公告)日：2015-05-26

申请号：US14037209

申请日：2013-09-25

Applicant: CANON KABUSHIKI KAISHA

Inventor： Ikuo Nakamoto

IPC: G03G15/00 ,  G03G15/20 ,  G03G15/23

CPC classification number: G03G15/2028 ,  G03G15/235 ,  G03G15/6594 ,  G03G2215/00514 ,  G03G2215/2045

Abstract: An image forming apparatus that sets a second conveyance speed, at which a recording material is conveyed at a heating nip portion, higher than a first conveyance speed, at which the recording material is conveyed at a transfer nip portion, conveys an envelope by the transfer and heating nip portions without transferring a toner image at the transfer nip portion. After that, the image forming apparatus which sets the second conveyance speed equal to or lower than the first conveyance speed transfers the toner image formed on a photosensitive drum acting as an image bearing member onto the envelope conveyed again to the transfer nip portion by a reversing conveyance mechanism acting as a re-conveyance unit to fix the toner image on the envelop at the heating nip portion.

Abstract translation: 一种图像形成装置，其设定第二输送速度，在所述第二输送速度下，记录材料在加热夹持部处传送，高于在转印夹持部处传送记录材料的第一输送速度，通过转印 和加热辊隙部分，而不在转印辊隙部分转印调色剂图像。 之后，将第二输送速度设定为等于或低于第一输送速度的图像形成装置将形成在作为图像承载部件的感光鼓上的调色剂图像转印到通过反转方向再次传送到转印辊隙部分的信封上 输送机构，用作重新输送单元，以将调色剂图像固定在加热辊隙部分的包络上。

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：US20200033778A1

公开(公告)日：2020-01-30

申请号：US16446926

申请日：2019-06-20

Applicant: CANON KABUSHIKI KAISHA

Inventor： Shigeru Hirano ,  Ikuo Nakamoto ,  Shigeru Tanaka ,  Akihiro Maeda ,  Yusuke Yamaguchi ,  Shohei Tsuzaki ,  Kenji Endo ,  Shinsuke Takahashi

IPC: G03G15/20

Abstract: An image heating apparatus includes an endless belt, a rotary member configured to form a nip portion with the endless belt, regulating members for regulating the endless belt from moving in a longitudinal direction by being in contact with longitudinal ends of the endless belt, and a sheet-like heating member. The heating member includes a heat transfer member in contact with the inner surface of the endless belt, and a heating portion located on an opposite side from a side, of the heating member, in contact with the inner surface of the endless belt across the heat transfer member. Both end portions of the heat transfer member are disposed at the same location or outside of both end portions of the heating portion in the longitudinal direction and are disposed inside of both end portions of the rotary member in the longitudinal direction.

公开(公告)号：US10228643B2

公开(公告)日：2019-03-12

申请号：US15658728

申请日：2017-07-25

Applicant: CANON KABUSHIKI KAISHA

Inventor： Ikuo Nakamoto

IPC: G03G15/20

Abstract: An image heating apparatus includes an endless belt and a rotatable member configured to form a nip for heating a toner image on a recording material therebetween, a substantially stationary pad member and a movable pad member provided along a feeding direction of the recording material and configured to press the endless belt toward the rotatable member from an inside of the endless belt, a moving mechanism configured to move the movable pad member between a first position at which the movable pad member presses the endless belt toward the rotatable member and a second position at which the movable pad member does not press the endless belt toward the rotatable member, and a sheet-like member configured to cover such a surface of the stationary pad member as is opposite to the rotatable member and such a surface of the movable pad member as is opposite to the rotatable member.