公开(公告)号：US20130195525A1

公开(公告)日：2013-08-01

申请号：US13751648

申请日：2013-01-28

申请人： Hiroshi YOSHINAGA ,  Masahiko SATOH ,  Masaaki YOSHIKAWA ,  Kenji ISHII ,  Tadashi OGAWA ,  Hiromasa TAKAGI ,  Naoki IWAYA ,  Takuya SESHITA ,  Takahiro IMADA ,  Hajime GOTOH ,  Akira SUZUKI ,  Teppei KAWATA ,  Toshihiko SHIMOKAWA ,  Arinobu YOSHIURA ,  Takamasa HASE ,  Takeshi UCHITANI ,  Shuutaroh YUASA ,  Kensuke YAMAJI

发明人： Hiroshi YOSHINAGA ,  Masahiko SATOH ,  Masaaki YOSHIKAWA ,  Kenji ISHII ,  Tadashi OGAWA ,  Hiromasa TAKAGI ,  Naoki IWAYA ,  Takuya SESHITA ,  Takahiro IMADA ,  Hajime GOTOH ,  Akira SUZUKI ,  Teppei KAWATA ,  Toshihiko SHIMOKAWA ,  Arinobu YOSHIURA ,  Takamasa HASE ,  Takeshi UCHITANI ,  Shuutaroh YUASA ,  Kensuke YAMAJI

IPC分类号： G03G15/20

CPC分类号： G03G15/2064 ,  G03G15/2053 ,  G03G2215/2035

摘要： A fixing device includes: a rotatable endless fixing belt; a nip forming member arranged inside the fixing belt; a facing rotating body that abuts the nip forming member via the fixing belt to form a nip portion with the fixing belt; a heat source that directly heats up the fixing belt at a portion other than the nip portion; and a supporting member that supports the nip forming member. The fixing device conveys a recording medium carrying an unfixed image to the nip portion to fix the unfixed image to the recording medium, and the supporting member includes a rising portion extending in an abutting direction of the facing rotating body against the fixing belt and having a tip close to an inner circumferential surface of the fixing belt, and is set to have a section modulus of 200 mm3 or higher.

摘要翻译： 定影装置包括：可旋转的环形定影带; 布置在定影带内的辊隙形成构件; 面向旋转体，其经由定影带邻接辊隙形成构件以与定影带形成咬合部; 在夹持部以外的部分直接加热定影带的热源; 以及支撑所述辊隙形成构件的支撑构件。 定影装置将携带未定影图像的记录介质传送到夹持部分，以将未定影图像固定到记录介质上，并且支撑构件包括沿相对的旋转体抵靠定影带的邻接方向延伸的上升部分，并且具有 尖端靠近定影带的内圆周表面，并且被设定为具有200mm 3或更高的截面模数。

公开(公告)号：US20130164056A1

公开(公告)日：2013-06-27

申请号：US13674353

申请日：2012-11-12

申请人： Takahiro IMADA ,  Masahiko SATOH ,  Masaaki YOSHIKAWA ,  Kenji ISHII ,  Tadashi OGAWA ,  Hiroshi YOSHINAGA ,  Hiromasa TAKAGI ,  Kazuya SAITO ,  Naoki IWAYA ,  Toshihiko SHIMOKAWA ,  Kensuke YAMAJI ,  Teppei KAWATA ,  Takamasa HASE ,  Shuutaroh YUASA ,  Takuya SESHITA ,  Takeshi UCHITANI ,  Arinobu YOSHIURA ,  Hajime GOTOH ,  Akira SUZUKI

发明人： Takahiro IMADA ,  Masahiko SATOH ,  Masaaki YOSHIKAWA ,  Kenji ISHII ,  Tadashi OGAWA ,  Hiroshi YOSHINAGA ,  Hiromasa TAKAGI ,  Kazuya SAITO ,  Naoki IWAYA ,  Toshihiko SHIMOKAWA ,  Kensuke YAMAJI ,  Teppei KAWATA ,  Takamasa HASE ,  Shuutaroh YUASA ,  Takuya SESHITA ,  Takeshi UCHITANI ,  Arinobu YOSHIURA ,  Hajime GOTOH ,  Akira SUZUKI

IPC分类号： G03G15/20

CPC分类号： G03G15/2064 ,  G03G15/2042 ,  G03G15/2053 ,  G03G2215/00151 ,  G03G2215/2035

摘要： A fixing device for fixing an image on a recording medium includes a rotatable endless fixing rotary member, a heating source which heats the fixing rotary member, an opposite rotary member in contact with the fixing rotary member, a nip forming member provided inside the fixing rotary member and in contact with the opposite rotary member via the fixing rotary member to form a nip portion to which the recording medium is fed, holding members rotatably holding end portions of the fixing rotary member, and protecting members provided between the holding members and end surfaces of the fixing rotary member to protect the end portions. Each of the protecting members has an opposite surface facing the corresponding end surface of the fixing rotary member, and including an inner diameter-side end edge having an inclined surface inclined in an inner diameter direction and away from the fixing rotary member.

摘要翻译： 用于将图像定影在记录介质上的定影装置包括可旋转的环形固定旋转构件，加热定影旋转构件的加热源，与定影旋转构件接触的相反旋转构件，设置在定影旋转体内的辊隙形成构件 并且通过固定旋转构件与相对旋转构件接触以形成记录介质供给的夹持部分，可旋转地保持定影旋转构件的端部的保持构件以及设置在保持构件和端表面之间的保护构件 以保护端部。 每个保护构件具有面向定影旋转构件的相应端面的相对表面，并且包括具有在内径方向上倾斜并远离定影旋转构件的倾斜表面的内径侧端边缘。

公开(公告)号：US20170205742A1

公开(公告)日：2017-07-20

申请号：US15395410

申请日：2016-12-30

申请人： Keitaro SHOJI ,  Yasunori ISHIGAYA ,  Kazuya SAITO ,  Ryohei MATSUDA ,  Hiromasa TAKAGI ,  Ryuuichi MIMBU ,  Toshihiko SHIMOKAWA

发明人： Keitaro SHOJI ,  Yasunori ISHIGAYA ,  Kazuya SAITO ,  Ryohei MATSUDA ,  Hiromasa TAKAGI ,  Ryuuichi MIMBU ,  Toshihiko SHIMOKAWA

IPC分类号： G03G15/20

CPC分类号： G03G15/2039 ,  G03G15/2053

摘要： A fixing device includes an endless fixing belt that is multilayered, an opposing rotator disposed opposite the fixing belt and pressed to the fixing belt to form a nip, a heater disposed inside the fixing belt, and a safety device including a contactless temperature sensor disposed outside the fixing belt and apart from an outer face of the fixing. The fixing belt is to rotate and thermally expand. The contactless temperature sensor detects a temperature of the fixing belt. The safety device stops heating by the heater when the temperature detected by the contactless temperature sensor is at or higher than a predetermined temperature. As the outer face of the fixing belt shifts outward in the radial direction due to thermal, a proportion of the outer face of the fixing belt in a viewing angle of the contactless temperature sensor increases.

公开(公告)号：US20160223961A1

公开(公告)日：2016-08-04

申请号：US14992643

申请日：2016-01-11

申请人： Hiromasa TAKAGI ,  Kenji ISHll ,  Kazuhito KISHI ,  Takashi SETO ,  Takayuki SEKI ,  Hiroshi YOSHINAGA ,  lppei FUJIMOTO ,  Kazunari SAWADA

发明人： Hiromasa TAKAGI ,  Kenji ISHll ,  Kazuhito KISHI ,  Takashi SETO ,  Takayuki SEKI ,  Hiroshi YOSHINAGA ,  lppei FUJIMOTO ,  Kazunari SAWADA

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G15/2042 ,  G03G2215/2035

摘要： A fixing device includes a flexible, tubular fixing rotator rotatable in a predetermined direction of rotation and an opposed rotator disposed opposite the fixing rotator. A nip formation pad presses against the opposed rotator via the fixing rotator to form a fixing nip between the fixing rotator and the opposed rotator, through which a recording medium bearing a toner image is conveyed. A fixing heater is disposed opposite at least a conveyance span of the fixing rotator in an axial direction thereof where the recording medium is conveyed to heat the fixing rotator. A lateral end heater is mounted on the nip formation pad and disposed opposite an inner circumferential surface of the fixing rotator at a lateral end of the fixing rotator in the axial direction thereof to heat the fixing rotator. A supplementary thermal conductor contacts the fixing rotator and the lateral end heater.

摘要翻译： 定影装置包括可沿预定旋转方向旋转的柔性管状固定旋转体和与定影旋转体相对设置的相对旋转体。 压区形成垫通过固定旋转器压靠在相对的旋转体上，以在固定旋转体和相对旋转体之间形成定影辊隙，通过该固定旋转体传送带有调色剂图像的记录介质。 定影加热器相对于固定旋转器的输送跨度至少沿其轴向传送记录介质的传送跨度相对地设置以加热定影旋转体。 横向端加热器安装在辊隙形成垫上并且在固定旋转器的轴向方向的侧端处与固定旋转体的内圆周表面相对地设置，以加热定影旋转体。 辅助热导体接触固定旋转器和侧端加热器。

公开(公告)号：US20160161890A1

公开(公告)日：2016-06-09

申请号：US15040691

申请日：2016-02-10

申请人： Keitaro SHOJI ,  Kenji ISHll ,  Hiromasa TAKAGI ,  Takayuki SEKI

发明人： Keitaro SHOJI ,  Kenji ISHll ,  Hiromasa TAKAGI ,  Takayuki SEKI

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G2215/2035

摘要： A fixing device includes a fixing rotator rotatable in a predetermined direction of rotation and an opposed rotator disposed opposite the fixing rotator to form a fixing nip therebetween through which a recording medium bearing a toner image is conveyed. A heater is disposed opposite the fixing rotator to heat the fixing rotator. A nip formation pad is disposed opposite an inner circumferential surface of the fixing rotator. The nip formation pad includes a base, a first thermal conductor sandwiched between the base and the fixing rotator and having a first thermal conductivity greater than a thermal conductivity of the base, and a bulge projecting from the first thermal conductor toward the opposed rotator at a downstream end of the first thermal conductor in a recording medium conveyance direction.

公开(公告)号：US20160054691A1

公开(公告)日：2016-02-25

申请号：US14928757

申请日：2015-10-30

申请人： Takamasa HASE ,  Masahiko SATOH ,  Shinichi NAMEKATA ,  Kenji ISHll ,  Takeshi UCHITANI ,  Tadashi OGAWA ,  Teppei KAWATA ,  Arinobu YOSHIURA ,  Kazuya SAITO ,  Toshihiko SHIMOKAWA ,  Shuutaroh YUASA ,  Kensuke YAMAJI ,  Masaaki YOSHIKAWA ,  Hiroshi YOSHINAGA ,  Hiromasa TAKAGI ,  Naoki IWAYA ,  Takuya SESHITA ,  Takahiro IMADA ,  Hajime GOTOH ,  Akira SUZUKI

发明人： Takamasa HASE ,  Masahiko SATOH ,  Shinichi NAMEKATA ,  Kenji ISHll ,  Takeshi UCHITANI ,  Tadashi OGAWA ,  Teppei KAWATA ,  Arinobu YOSHIURA ,  Kazuya SAITO ,  Toshihiko SHIMOKAWA ,  Shuutaroh YUASA ,  Kensuke YAMAJI ,  Masaaki YOSHIKAWA ,  Hiroshi YOSHINAGA ,  Hiromasa TAKAGI ,  Naoki IWAYA ,  Takuya SESHITA ,  Takahiro IMADA ,  Hajime GOTOH ,  Akira SUZUKI

IPC分类号： G03G15/20

CPC分类号： G03G15/2028 ,  G03G15/2039 ,  G03G15/205 ,  G03G15/55

摘要： An image forming apparatus includes a fixing device. The fixing device includes a rotatable endless fixing member, a nip forming member arranged inside the fixing member, a pressing member in contact with the nip forming member via the fixing member, and a heating source configured to heat the fixing member. When an abnormality occurs in at least one of the fixing device and other devices included in the image forming apparatus, a rotation of the fixing member is stopped prior to stopping a rotation driving of a discharging unit and, after stopping, the fixing member is controlled to rotate.

公开(公告)号：US20160004197A1

公开(公告)日：2016-01-07

申请号：US14851583

申请日：2015-09-11

申请人： Takahiro IMADA ,  Masaaki YOSHIKAWA ,  Kenji ISHII ,  Hiroshi YOSHINAGA ,  Yuji ARAI ,  Naoki IWAYA ,  Tetsuo TOKUDA ,  Hiromasa TAKAGI ,  Yoshiki YAMAGUCHI ,  Ippei FUJIMOTO ,  Takuya SESHITA ,  Yutaka IKEBUCHI ,  Arinobu YOSHIURA ,  Toshihiko SHIMOKAWA ,  Hajime GOTOH

发明人： Takahiro IMADA ,  Masaaki YOSHIKAWA ,  Kenji ISHII ,  Hiroshi YOSHINAGA ,  Yuji ARAI ,  Naoki IWAYA ,  Tetsuo TOKUDA ,  Hiromasa TAKAGI ,  Yoshiki YAMAGUCHI ,  Ippei FUJIMOTO ,  Takuya SESHITA ,  Yutaka IKEBUCHI ,  Arinobu YOSHIURA ,  Toshihiko SHIMOKAWA ,  Hajime GOTOH

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G15/2064 ,  G03G2215/2035

摘要： According to an embodiments, a fixing device includes: an endless fixing member; a heating unit that is provided inside an inner peripheral surface of the fixing member; and a nip forming unit that comes into press-contact with a rotationally driven pressing member with the fixing member interposed therebetween to form a nip. The nip forming unit has a shape in which a center of a contact surface protrudes toward the pressing member compared to both ends. The nip forming unit has a protruding amount at a center toward the pressing member compared to both ends of the nip forming unit in no-load state is set to be less than a bent amount of the nip forming unit when the nip forming unit comes into press-contact with the pressing member with the fixing member interposed therebetween.

摘要翻译： 根据实施例，固定装置包括：环形固定构件; 加热单元，设置在所述固定构件的内周面的内侧; 以及辊隙形成单元，其与固定构件夹在其间的与旋转驱动的按压构件压力接触以形成辊隙。 辊隙形成单元具有与两端相比接触表面的中心朝向按压构件突出的形状。 压区形成单元在空载状态下与夹紧形成单元的两端相比，在朝向加压构件的中心处具有突出量设定为小于压区形成单元的弯曲量时 与固定构件夹在其间的按压构件压接。

公开(公告)号：US20150125193A1

公开(公告)日：2015-05-07

申请号：US14531313

申请日：2014-11-03

申请人： Kenji ISHII ,  Hiromasa TAKAGI ,  Takayuki SEKI ,  Keitaro SHOJI

发明人： Kenji ISHII ,  Hiromasa TAKAGI ,  Takayuki SEKI ,  Keitaro SHOJI

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G15/2042 ,  G03G2215/2025 ,  G03G2215/2029 ,  G03G2215/2032 ,  G03G2215/2035 ,  G03G2215/2038

摘要： A fixing device includes a fixing rotator, a nip formation pad disposed opposite an inner circumferential surface of the fixing rotator, and a pressure rotator pressed against the nip formation pad via the fixing rotator to form a fixing nip between the fixing rotator and the pressure rotator, through which a recording medium is conveyed. A support is disposed opposite the pressure rotator via the nip formation pad to support the nip formation pad against pressure from the pressure rotator. The nip formation pad conducts heat in a thickness direction thereof perpendicular to an axial direction of the fixing rotator and a recording medium conveyance direction. The nip formation pad includes a multi-conductivity layer having a thermal conductivity varying in the axial direction of the fixing rotator and a support side layer contacting the support and having a thermal conductivity greater than a thermal conductivity of the support.

摘要翻译： 定影装置包括固定旋转体，与定影旋转体的内周面相对配置的压区形成垫，以及经由固定旋转体压靠在压区形成垫上的压力旋转体，在固定旋转体和压力旋转体之间形成定影辊隙 传送记录媒体。 支撑件通过压区形成垫与压力旋转体相对设置，以支撑压区形成垫抵抗来自压力旋转器的压力。 压区形成垫沿与固定旋转体的轴向垂直的厚度方向和记录介质输送方向传导热量。 压区形成垫包括具有在固定旋转体的轴向上变化的热导率的多导电层和与支撑体接触并具有大于载体的热导率的导热性的支撑侧层。

公开(公告)号：US20150023705A1

公开(公告)日：2015-01-22

申请号：US14508694

申请日：2014-10-07

申请人： Teppei KAWATA ,  Masahiko SATOH ,  Masaaki YOSHIKAWA ,  Kenji ISHII ,  Hiroshi YOSHINAGA ,  Tadashi OGAWA ,  Takahiro IMADA ,  Hiromasa TAKAGI ,  Kazuya SAITO ,  Naoki IWAYA ,  Kensuke YAMAJI ,  Takamasa HASE ,  Toshihiko SHIMOKAWA ,  Shuutaroh YUASA ,  Takuya SESHITA ,  Takeshi UCHITANI ,  Arinobu YOSHIURA ,  Hajime GOTOH ,  Akira SUZUKI

发明人： Teppei KAWATA ,  Masahiko SATOH ,  Masaaki YOSHIKAWA ,  Kenji ISHII ,  Hiroshi YOSHINAGA ,  Tadashi OGAWA ,  Takahiro IMADA ,  Hiromasa TAKAGI ,  Kazuya SAITO ,  Naoki IWAYA ,  Kensuke YAMAJI ,  Takamasa HASE ,  Toshihiko SHIMOKAWA ,  Shuutaroh YUASA ,  Takuya SESHITA ,  Takeshi UCHITANI ,  Arinobu YOSHIURA ,  Hajime GOTOH ,  Akira SUZUKI

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G15/2064 ,  G03G2215/2035

摘要： A fixing device includes an endless belt rotatable in a predetermined direction of rotation and a nip formation assembly disposed opposite an inner circumferential surface of the endless belt. An opposed rotary body is pressed against the nip formation assembly via the endless belt to form a fixing nip between the endless belt and the opposed rotary body through which a recording medium bearing a toner image is conveyed. A belt holder contacts and supports each lateral end of the endless belt in an axial direction thereof. The belt holder is isolated from the opposed rotary body with a first interval interposed therebetween in the axial direction of the endless belt.

摘要翻译： 定影装置包括沿预定旋转方向旋转的环形带和与环形带的内周表面相对设置的辊隙形成组件。 相对的旋转体经由环形带被压靠在辊隙形成组件上，以在环形带和相对的旋转体之间形成定影辊隙，通过该固定夹持器传送带有调色剂图像的记录介质。 皮带保持器在其轴向方向上接触和支撑环形带的每个侧端。 皮带保持件与相对的旋转体隔开，第一间隔在环形带的轴向插入其间。

公开(公告)号：US20140286684A1

公开(公告)日：2014-09-25

申请号：US14207748

申请日：2014-03-13

申请人： Hiromasa TAKAGI ,  Kenji ISHII ,  Arinobu YOSHIURA

发明人： Hiromasa TAKAGI ,  Kenji ISHII ,  Arinobu YOSHIURA

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G2215/2035

摘要： A fixing device includes an endless belt, a heater disposed opposite the endless belt to heat the endless belt, and a pressing rotary body contacting an outer circumferential surface of the endless belt. A nip formation pad presses against the pressing rotary body via the endless belt to form a fixing nip between the endless belt and the pressing rotary body, through which a recording medium is conveyed. The nip formation pad includes a nip face disposed opposite the endless belt. The nip face includes a first region having an increased thermal conductivity and a second region having a decreased thermal conductivity and being adjacent to the first region in an axial direction of the endless belt.

摘要翻译： 固定装置包括环形带，与环形带相对设置的用于加热环形带的加热器，以及与环形带的外周表面接触的按压旋转体。 压区形成垫通过环形带压靠压力旋转体，以在环形带和压制旋转体之间形成定影辊隙，记录介质通过该定影辊隙传送。 辊隙形成垫包括与环形带相对设置的辊隙面。 夹持面包括具有增加的导热性的第一区域和具有降低的热导率的第二区域，并且在环形带的轴向方向上与第一区域相邻。