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1. 发明申请

US20220026832A1 IMAGE FORMING APPARATUS THAT IMPROVES CONTACT MEMBER DURABILITY AND SUPPRESSES OCCURRENCE OF CLEANING FAILURE 有权
公开(公告)号：US20220026832A1
公开(公告)日：2022-01-27
申请号：US17497465
申请日：2021-10-08
申请人： CANON KABUSHIKI KAISHA
发明人： Ken Yokoyama , Shuji Saito , Koujirou Izumidate
IPC分类号： G03G15/16 , G03G21/12
摘要： An image forming apparatus includes an intermediate transfer member. The intermediate transfer member includes a layer made of an acrylic copolymer. A plurality of grooves is formed in the layer along a moving direction of the intermediate transfer member across a width direction of the intermediate transfer member. A groove distance that is an average distance between adjoining grooves of the plurality of grooves in the width direction of the intermediate transfer member is 2 μm or more and 10 μm or less.

2. 发明申请

US20190324386A1 ELECTROPHOTOGRAPHIC BELT AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：US20190324386A1
公开(公告)日：2019-10-24
申请号：US16377901
申请日：2019-04-08
申请人： CANON KABUSHIKI KAISHA
发明人： Kouichi Uchida , Koujirou Izumidate , Noriaki Egawa , Masatsugu Toyonori , Shuji Saito , Yasuhiro Matsuo , Takashi Endo , Kosuke Saito
IPC分类号： G03G15/16
摘要： Provided is an electrophotographic belt sustainably excellent in toner removal performance. The electrophotographic belt has an endless shape and has grooves on an outer surface thereof, each of the grooves extending in a circumferential direction and being in non-parallel with the circumferential direction, and the outer surface is composed only of a first region in which the number of the grooves in a direction orthogonal to the circumferential direction is “n” and a second region in which the number of the grooves in the direction orthogonal to the circumferential direction is larger than the “n”, the first region and the second region being arranged alternately in the circumferential direction, and the “n” being an integer of 1 or more.

3. 发明授权

US09229351B2 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US09229351B2
公开(公告)日：2016-01-05
申请号：US13658297
申请日：2012-10-23
申请人： CANON KABUSHIKI KAISHA
发明人： Kazuhiro Funatani , Hiroaki Sakai , Akimichi Suzuki , Shuji Saito
IPC分类号： G03G15/00 , G03G15/043 , G03G15/08 , G03G15/01
CPC分类号： G03G15/043 , G03G15/0189 , G03G15/0813 , G03G2215/0132
摘要： An image forming apparatus includes an exposure device having an adjustment period for adjusting an output while exposing a photosensitive drum to light prior to image formation and a developing device. The developing device is configured to change between a contact state where the photosensitive drum and a developing roller are in contact with each other and a separation state where they are separated from each other. The developing device changes from the separation state to the contact state when a portion on the photosensitive drum exposed to light in the adjustment period of the exposure device is at a developing position.
摘要翻译：图像形成装置包括曝光装置，其具有用于在图像形成之前将感光鼓曝光而将输出调节的调整周期和显影装置。显影装置构造成在感光鼓和显影辊彼此接触的接触状态和它们彼此分离的分离状态之间改变。当在曝光装置的调节周期中暴露于光的感光鼓上的部分处于显影位置时，显影装置从分离状态改变到接触状态。

4. 发明申请

US20150268608A1 HEATER AND IMAGE HEATING APPARATUS INCLUDING THE HEATER 审中-公开
标题翻译：加热器和图像加热装置，包括加热器
公开(公告)号：US20150268608A1
公开(公告)日：2015-09-24
申请号：US14733283
申请日：2015-06-08
申请人： CANON KABUSHIKI KAISHA
发明人： Shuji Saito , Hiroyuki Sakakibara , Yusuke Nakashima , Atsuhiko Yamaguchi
IPC分类号： G03G15/20 , H05B3/26
CPC分类号： G03G15/2053 , G03G15/2021 , G03G15/2042 , G03G15/2057 , H05B3/26 , H05B3/46
摘要： 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.
摘要翻译：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。

5. 发明申请

US20130108306A1 HEATER AND IMAGE HEATING APPARATUS INCLUDING THE HEATER 有权
公开(公告)号：US20130108306A1
公开(公告)日：2013-05-02
申请号：US13659266
申请日：2012-10-24
申请人： Canon Kabushiki Kaisha
发明人： Shuji Saito , Hiroyuki Sakakibara , Yusuke Nakashima , Atsuhiko Yamaguchi
IPC分类号： G03G15/20 , H05B3/02
CPC分类号： G03G15/2053 , G03G15/2021 , G03G15/2042 , G03G15/2057 , H05B3/26 , H05B3/46
摘要： 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.

6. 发明授权

US09658580B2 Image forming apparatus 有权
公开(公告)号：US09658580B2
公开(公告)日：2017-05-23
申请号：US14528073
申请日：2014-10-30
申请人： CANON KABUSHIKI KAISHA
发明人： Shuji Saito , Naoto Tsuchihashi , Yoshisuke Kasuya
IPC分类号： G03G15/20 , G03G21/20
CPC分类号： G03G15/2017 , G03G21/206
摘要： 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.

7. 发明授权

US09599935B2 Image forming apparatus with cleaning using cleaning member and charging member 有权
公开(公告)号：US09599935B2
公开(公告)日：2017-03-21
申请号：US15007597
申请日：2016-01-27
申请人： CANON KABUSHIKI KAISHA
发明人： Masanori Asai , Kazuhiro Funatani , Hiroyuki Seki , Shuji Saito , Yasutaka Yagi , Tetsuichiro Fujimoto
IPC分类号： G03G15/16 , G03G21/00
CPC分类号： G03G15/161 , G03G21/0076 , G03G2215/0132 , G03G2221/001
摘要： 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.

8. 发明授权

US09280108B2 Fixing device 有权
标题翻译：固定装置
公开(公告)号：US09280108B2
公开(公告)日：2016-03-08
申请号：US14808428
申请日：2015-07-24
申请人： CANON KABUSHIKI KAISHA
发明人： Noriaki Sato , Yasutaka Yagi , Hiroshi Kataoka , Eiji Uekawa , Keisuke Mochizuki , Shuji Saito , Naoto Tsuchihashi
IPC分类号： G03G15/20
CPC分类号： G03G15/2064 , G03G15/2053
摘要： 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.
摘要翻译：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。

9. 发明授权

US09091977B2 Heater with insulated substrate having through holes and image heating apparatus including the heater 有权
标题翻译：具有通孔的绝缘基板的加热器和包括加热器的图像加热装置
公开(公告)号：US09091977B2
公开(公告)日：2015-07-28
申请号：US13659266
申请日：2012-10-24
申请人： CANON KABUSHIKI KAISHA
发明人： Shuji Saito , Hiroyuki Sakakibara , Yusuke Nakashima , Atsuhiko Yamaguchi
IPC分类号： G03G15/20 , H05B3/46
CPC分类号： G03G15/2053 , G03G15/2021 , G03G15/2042 , G03G15/2057 , H05B3/26 , H05B3/46
摘要： 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.
摘要翻译：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。

10. 发明申请

US20220197191A1 TRANSFER BELT AND IMAGE FORMING APPARATUS 有权
公开(公告)号：US20220197191A1
公开(公告)日：2022-06-23
申请号：US17552249
申请日：2021-12-15
申请人： CANON KABUSHIKI KAISHA
发明人： Shuji Saito , Noriaki Egawa , Masatsugu Toyonori
IPC分类号： G03G15/16
摘要： 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.

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