公开(公告)号：US10935911B2

公开(公告)日：2021-03-02

申请号：US15797967

申请日：2017-10-30

申请人： RICOH COMPANY, LTD.

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

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.

公开(公告)号：US09501011B2

公开(公告)日：2016-11-22

申请号：US14828227

申请日：2015-08-17

申请人： RICOH COMPANY, LTD.

发明人： Ippei Fujimoto ,  Akira Shinshi ,  Naoki Iwaya ,  Yoshiki Yamaguchi ,  Shuntaroh Tamaki ,  Hiroshi Yoshinaga ,  Yutaka Ikebuchi ,  Toshihiko Shimokawa ,  Kenichi Hasegawa

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G15/2007 ,  G03G15/2039

摘要： A fixing device to fix a toner image on a sheet includes a first rotary member that rotates in a predetermined direction and a second rotary member that contacts an outer circumferential surface of the first rotary member. A stationary member is fixed inside the first rotary member to press the first and second rotary members together to form a nip portion between the rotary members. A reinforcement member is fixedly provided inside the first rotary member and pressed against the stationary member. The fixing device includes heat source to heat the first rotary member and a reflector to reflect heater light emitted from the heat source toward the first rotary member.

公开(公告)号：US09128426B2

公开(公告)日：2015-09-08

申请号：US13899197

申请日：2013-05-21

申请人： RICOH COMPANY, LTD.

发明人： Ippei Fujimoto ,  Akira Shinshi ,  Naoki Iwaya ,  Yoshiki Yamaguchi ,  Shuntaroh Tamaki ,  Hiroshi Yoshinaga ,  Yutaka Ikebuchi ,  Toshihiko Shimokawa ,  Kenichi Hasegawa

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G15/2007 ,  G03G15/2039

摘要： A fixing device to fix a toner image on a sheet includes a first rotary member that rotates in a predetermined direction and a second rotary member that contacts an outer circumferential surface of the first rotary member. A stationary member is fixed inside the first rotary member to press the first and second rotary members together to form a nip portion between the rotary members. A reinforcement member is fixedly provided inside the first rotary member and pressed against the stationary member. The fixing device includes heat source to heat the first rotary member and a reflector to reflect heater light emitted from the heat source toward the first rotary member.

摘要翻译： 将调色剂图像固定在片材上的固定装置包括沿预定方向旋转的第一旋转构件和与第一旋转构件的外周面接触的第二旋转构件。 固定构件固定在第一旋转构件的内部，以将第一和第二旋转构件压在一起，以在旋转构件之间形成压合部。 加强件固定地设置在第一旋转件的内部并压靠固定件。 定影装置包括用于加热第一旋转构件的热源和反射器，以将从热源发射的加热器光反射到第一旋转构件。

公开(公告)号：US09417565B2

公开(公告)日：2016-08-16

申请号：US14789606

申请日：2015-07-01

申请人： RICOH COMPANY, LTD.

发明人： Yoshiki Hozumi ,  Naoki Iwaya ,  Yasufumi Takahashi ,  Masaharu Furuya ,  Naomi Sugimoto ,  Kazuchika Saeki

IPC分类号： G03G15/00 ,  B65H3/06 ,  B65H5/02 ,  G03G15/16

CPC分类号： G03G15/1615 ,  B65H3/06 ,  B65H3/0669 ,  B65H5/023 ,  G03G15/6529 ,  G03G15/657 ,  G03G2215/00135 ,  G03G2215/00143 ,  G03G2215/00156

摘要： A conveyor system includes a first conveyor belt entrained about a separation roller and a support roller disposed upstream from the separation roller, a second conveyor belt entrained about a first roller disposed at an uppermost stream in a transport direction of a sheet-type medium and a second roller disposed downstream therefrom, a belt alignment device to tilt a rotary shaft of the separation roller to restrict a range of belt mistracking of the first conveyor belt in a width direction thereof within a predetermined range, and a restriction member to restrict an amount of inclination of the rotary shaft such that a hypothetical extended plane, which is a hypothetical extension of the outer circumferential surface of the first conveyor belt between the separation roller and the support roller to a downstream side in the transport direction, does not contact a rotational center axis of the first roller.

公开(公告)号：US09052658B2

公开(公告)日：2015-06-09

申请号：US13751922

申请日：2013-01-28

申请人： RICOH COMPANY, LTD.

发明人： Takeshi Uchitani ,  Masahiko Satoh ,  Masaaki Yoshikawa ,  Kenji Ishii ,  Tadashi Ogawa ,  Takahiro Imada ,  Hiromasa Takagi ,  Kazuya Saito ,  Naoki Iwaya ,  Toshihiko Shimokawa ,  Kensuke Yamaji ,  Teppei Kawata ,  Takamasa Hase ,  Takuya Seshita ,  Shuutaroh Yuasa ,  Arinobu Yoshiura ,  Hajime Gotoh ,  Akira Suzuki ,  Hiroshi Yoshinaga

IPC分类号： G03G15/20

CPC分类号： G03G15/2078 ,  G03G15/2039 ,  G03G15/2042 ,  G03G2215/2035

摘要： A fixing device for fixing an unfixed image onto a recording medium includes a fixing belt, a nip forming member, an opposing rotary member, a heater, and a temperature detector. The fixing belt is formed into a loop to move endlessly and fix the unfixed image on the recording medium. The nip forming member is disposed inside the loop formed by the fixing belt. The opposing rotary member contacts the nip forming member via the fixing belt to form a nip portion therebetween while rotating. The heater heats the fixing belt at a place other than the nip portion. The temperature detector detects a temperature of the surface of the fixing belt. The temperature detector detects the temperature near a place of the fixing belt that easily deforms as the fixing belt is heated by the heater.

摘要翻译： 用于将未定影图像固定到记录介质上的定影装置包括定影带，辊隙形成构件，相对旋转构件，加热器和温度检测器。 将定影带形成为环状以循环移动并将未定影图像固定在记录介质上。 辊隙形成构件设置在由定影带形成的环内。 相对的旋转构件经由定影带与辊隙形成构件接触，在旋转的同时在其间形成夹持部。 加热器将定影带加热到夹持部以外的位置。 温度检测器检测定影带的表面的温度。 温度检测器检测定影带靠近加热器加热定影带时容易变形的位置附近的温度。

公开(公告)号：US09026024B2

公开(公告)日：2015-05-05

申请号：US13746871

申请日：2013-01-22

申请人： Ricoh Company, Ltd.

发明人： Tadashi Ogawa ,  Masahiko Satoh ,  Masaaki Yoshikawa ,  Hiroshi Yoshinaga ,  Kenji Ishii ,  Takeshi Uchitani ,  Hiromasa Takagi ,  Naoki Iwaya ,  Takuya Seshita ,  Takahiro Imada ,  Hajime Gotoh ,  Takamasa Hase ,  Kazuya Saito ,  Toshihiko Shimokawa ,  Shuutaroh Yuasa ,  Teppei Kawata ,  Arinobu Yoshiura ,  Kensuke Yamaji ,  Akira Suzuki

IPC分类号： G03G15/20

CPC分类号： G03G15/2085 ,  G03G15/2017 ,  G03G15/2028 ,  G03G15/205 ,  G03G15/2053 ,  G03G2215/2035

摘要： A fixing device includes at least one heater disposed opposite an inner circumferential surface of an endless rotary body to heat the endless rotary body and a shield interposed between the endless rotary body and the at least one heater to shield the endless rotary body from heat radiated from the at least one heater. A first size recording medium passes over a first passage region of the endless rotary body and a second size recording medium passes over a second passage region of the endless rotary body. The shield includes a notch disposed opposite a lateral end of the second passage region of the endless rotary body in an axial direction thereof. The lateral end of the second passage region overlaps a non-passage region of the endless rotary body in the axial direction thereof where the first size recording medium does not pass.

摘要翻译： 定影装置包括至少一个与环形旋转体的内圆周表面相对设置的加热器，以加热环形旋转体，以及插入在环形旋转体和至少一个加热器之间的屏蔽件，用于屏蔽环形旋转体免受从 至少一个加热器。 第一尺寸记录介质经过环形旋转体的第一通道区域，并且第二尺寸记录介质通过环形旋转体的第二通道区域。 护罩包括与环形旋转体的第二通道区域的轴向相对的侧面设置的凹口。 第二通道区域的横向端部与第一尺寸记录介质不通过的轴向的环形旋转体的非通过区域重叠。