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公开(公告)号:US11320770B2
公开(公告)日:2022-05-03
申请号:US17033371
申请日:2020-09-25
Applicant: CANON KABUSHIKI KAISHA
Inventor: Hideki Ohta , Terutaka Endo , Seiji Obata , Jiro Moriya , Takayuki Mizuta
IPC: G03G15/20
Abstract: The present invention provides a fixing device including a flexible cylindrical rotary member and an inner-surface opposing portion that opposes an inner surface of the rotary member at an end portion of the rotary member in a generatrix direction. The inner-surface opposing portion moves upstream in a recording material conveying direction in accordance with lateral shift of the rotary member in the generatrix direction. This restricts the lateral shift of the rotary member.
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公开(公告)号:US20190332044A1
公开(公告)日:2019-10-31
申请号:US16505519
申请日:2019-07-08
Applicant: CANON KABUSHIKI KAISHA
Inventor: Hideki Ohta , Terutaka Endo , Seiji Obata , Jiro Moriya , Takayuki Mizuta
IPC: G03G15/20
Abstract: The present invention provides a fixing device including a flexible cylindrical rotary member and an inner-surface opposing portion that opposes an inner surface of the rotary member at an end portion of the rotary member in a generatrix direction. The inner-surface opposing portion moves upstream in a recording material conveying direction in accordance with lateral shift of the rotary member in the generatrix direction. This restricts the lateral shift of the rotary member.
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公开(公告)号:US10386761B2
公开(公告)日:2019-08-20
申请号:US15961189
申请日:2018-04-24
Applicant: CANON KABUSHIKI KAISHA
Inventor: Hideki Ohta , Terutaka Endo , Seiji Obata , Jiro Moriya , Takayuki Mizuta
IPC: G03G15/20
Abstract: The present invention provides a fixing device including a flexible cylindrical rotary member and an inner-surface opposing portion that opposes an inner surface of the rotary member at an end portion of the rotary member in a generatrix direction. The inner-surface opposing portion moves upstream in a recording material conveying direction in accordance with lateral shift of the rotary member in the generatrix direction. This restricts the lateral shift of the rotary member.
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公开(公告)号:US20180004138A1
公开(公告)日:2018-01-04
申请号:US15703243
申请日:2017-09-13
Applicant: CANON KABUSHIKI KAISHA
Inventor: Terutaka Endo , Daisuke Yamamoto
CPC classification number: G03G15/234 , G03G15/6567 , G03G2215/00586
Abstract: An image forming apparatus for forming an image on a sheet, includes an image forming unit configured to form the image on the sheet, a double-sided conveyance path through which the sheet with the image formed on a first surface passes before the image forming unit forms an image on a second surface opposite to the first surface, a guide member having a contact portion configured to contact one end of the sheet in the width direction of the sheet, the guide member being provided on the double-sided conveyance path, and a reversing roller pair forwardly and reversely rotatable, configured to convey the sheet to the double-sided conveyance path during a reverse rotation, the reversing roller pair having a drive shaft, and a first roller and a second roller coaxially disposed on the shaft, rotatable with the shaft, wherein the second roller is disposed at a position more away from the contact portion than the first roller in the axial direction of the shaft, the second roller having a larger outer diameter than the first roller.
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公开(公告)号:US11846902B2
公开(公告)日:2023-12-19
申请号:US17720825
申请日:2022-04-14
Applicant: CANON KABUSHIKI KAISHA
Inventor: Hideki Ohta , Terutaka Endo , Seiji Obata , Jiro Moriya , Takayuki Mizuta
IPC: G03G15/20
CPC classification number: G03G15/2053 , G03G2215/00143
Abstract: The present invention provides a fixing device including a flexible cylindrical rotary member and an inner-surface opposing portion that opposes an inner surface of the rotary member at an end portion of the rotary member in a generatrix direction. The inner-surface opposing portion moves upstream in a recording material conveying direction in accordance with lateral shift of the rotary member in the generatrix direction. This restricts the lateral shift of the rotary member.
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公开(公告)号:US20220244666A1
公开(公告)日:2022-08-04
申请号:US17720825
申请日:2022-04-14
Applicant: CANON KABUSHIKI KAISHA
Inventor: Hideki Ohta , Terutaka Endo , Seiji Obata , Jiro Moriya , Takayuki Mizuta
IPC: G03G15/20
Abstract: The present invention provides a fixing device including a flexible cylindrical rotary member and an inner-surface opposing portion that opposes an inner surface of the rotary member at an end portion of the rotary member in a generatrix direction. The inner-surface opposing portion moves upstream in a recording material conveying direction in accordance with lateral shift of the rotary member in the generatrix direction. This restricts the lateral shift of the rotary member.
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公开(公告)号:US20190212683A1
公开(公告)日:2019-07-11
申请号:US16358252
申请日:2019-03-19
Applicant: CANON KABUSHIKI KAISHA
Inventor: Terutaka Endo , Daisuke Yamamoto
IPC: G03G15/23
CPC classification number: G03G15/234 , G03G15/6567 , G03G2215/00586
Abstract: An image forming apparatus includes an image forming unit, a discharge unit, a double-sided conveyance path, a sheet plate, a skew correction unit, and a frame. The discharge unit discharges a sheet having an image from the image forming unit. The double-sided conveyance path conveys the sheet again to the image forming unit. The sheet plate restricts a position of an end, in a sheet width direction, of the sheet. The skew correction unit obliquely conveys the sheet to abut the sheet end. The frame determines a position of the sheet plate and includes a first positioning portion to position a sheet plate first positioned portion and a second positioning portion to position a sheet plate second positioned portion with the skew correction unit between the first and second positioned portion. The first positioning portion faces the first positioned portion and the second positioning portion faces the second positioned portion.
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公开(公告)号:US09791814B2
公开(公告)日:2017-10-17
申请号:US15091387
申请日:2016-04-05
Applicant: CANON KABUSHIKI KAISHA
Inventor: Terutaka Endo , Daisuke Yamamoto
CPC classification number: G03G15/234 , G03G15/6567 , G03G2215/00586
Abstract: An image forming apparatus for forming an image on a sheet, includes an image forming unit configured to form the image on the sheet, a double-sided conveyance path through which the sheet with the image formed on a first surface passes before the image forming unit forms an image on a second surface opposite to the first surface, a guide member having a contact portion configured to contact one end of the sheet in the width direction of the sheet, the guide member being provided on the double-sided conveyance path, and a reversing roller pair forwardly and reversely rotatable, configured to convey the sheet to the double-sided conveyance path during a reverse rotation, the reversing roller pair having a drive shaft, and a first roller and a second roller coaxially disposed on the shaft, rotatable with the shaft, wherein the second roller is disposed at a position more away from the contact portion than the first roller in the axial direction of the shaft, the second roller having a larger outer diameter than the first roller.
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公开(公告)号:US20160299459A1
公开(公告)日:2016-10-13
申请号:US15091387
申请日:2016-04-05
Applicant: CANON KABUSHIKI KAISHA
Inventor: Terutaka Endo , Daisuke Yamamoto
IPC: G03G15/00
CPC classification number: G03G15/234 , G03G15/6567 , G03G2215/00586
Abstract: An image forming apparatus for forming an image on a sheet, includes an image forming unit configured to form the image on the sheet, a double-sided conveyance path through which the sheet with the image formed on a first surface passes before the image forming unit forms an image on a second surface opposite to the first surface, a guide member having a contact portion configured to contact one end of the sheet in the width direction of the sheet, the guide member being provided on the double-sided conveyance path, and a reversing roller pair forwardly and reversely rotatable, configured to convey the sheet to the double-sided conveyance path during a reverse rotation, the reversing roller pair having a drive shaft, and a first roller and a second roller coaxially disposed on the shaft, rotatable with the shaft, wherein the second roller is disposed at a position more away from the contact portion than the first roller in the axial direction of the shaft, the second roller having a larger outer diameter than the first roller.
Abstract translation: 一种用于在片材上形成图像的图像形成装置包括:图像形成单元,被配置为在片材上形成图像;双面输送路径,其中形成在第一表面上的图像的片材在图像形成单元之前通过 在与第一表面相对的第二表面上形成图像,引导构件,其具有接触部分,该接触部构造成在片材的宽度方向上接触片材的一端,引导构件设置在双面输送路径上,以及 反转辊对正向和反向旋转,构造成在反向旋转期间将片材输送到双面输送路径,反转辊对具有驱动轴,以及同轴地设置在轴上的第一辊和第二辊,可旋转 与所述轴一起,其中所述第二辊设置在所述轴的轴向方向上比所述第一辊更靠近所述接触部分的位置处,所述第二辊具有1a rger外径比第一辊。
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公开(公告)号:US09274474B2
公开(公告)日:2016-03-01
申请号:US14482163
申请日:2014-09-10
Applicant: CANON KABUSHIKI KAISHA
Inventor: Masahito Omata , Shoichiro Ikegami , Masahiko Suzumi , Terutaka Endo , Takeshi Niimura , Takehiko Suzuki , Toshihiko Ochiai
IPC: G03G15/20
CPC classification number: G03G15/2028 , G03G15/2017 , G03G15/206 , G03G2215/2035
Abstract: The fixing device includes a rotary member for contacting the unfixed toner image, a pressure member for forming the nip portion by contacting the rotary member, and a cover for covering the rotary member with a space between the rotary member and the cover. In a cross section of the fixing device, the cross section being orthogonal to a generatrix direction of the rotary member, the shortest distance (H) between the nip portion and a farthest surface portion of the rotary member farthest away from a surface portion forming the nip portion of the rotary member, the maximum width (W) of the rotary member in the conveyance direction of the recording member, and an area (S) of the space in a range of the maximum width W in the cross section satisfy with a relationship of S/W≧0.7×H.
Abstract translation: 定影装置包括用于接触未定影调色剂图像的旋转构件,用于通过接触旋转构件形成夹持部的压力构件和用于在旋转构件和盖之间具有空间覆盖旋转构件的盖。 在定影装置的横截面中,横截面与旋转构件的母线方向正交,夹持部分与旋转构件的最远表面部分之间的最短距离(H)最远离形成 旋转构件的夹持部分,旋转构件在记录构件的输送方向上的最大宽度(W)和横截面中最大宽度W的范围内的空间的面积(S)满足a S / W的关系≧0.7×H。
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