公开(公告)号：US08909117B2

公开(公告)日：2014-12-09

申请号：US13717046

申请日：2012-12-17

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

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

IPC分类号： G03G15/20

摘要： A fixing device that fixes an image on a recording medium includes a rotatable endless belt, deployed in a loop supported by rollers, a nip forming member provided inside the loop formed by the belt, a support member that supports the nip forming member, a counter rotation body disposed outside the loop formed by the belt and configured to form a nip with the belt by being in contact with the nip forming member through the belt, and a heat source configured to heat the belt directly by a radiant heat except at the nip. The support member includes a base portion that contacts the nip forming member and two arms extending from the base portion in a direction away from the nip forming member to partially surround a part of heat generating portion of the heat source.

公开(公告)号：US20130209115A1

公开(公告)日：2013-08-15

申请号：US13762919

申请日：2013-02-08

申请人： Takamasa HASE ,  Masahiko Satoh ,  Shinichi Namekata ,  Kenji Ishii ,  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 Ishii ,  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.

摘要翻译： 图像形成装置包括定影装置。 定影装置包括可旋转环形固定构件，布置在固定构件内部的夹持形成构件，经由固定构件与压区形成构件接触的按压构件，以及构造成加热固定构件的加热源。 当在图像形成装置中包括的定影装置和其他装置中的至少一个中发生异常时，在停止排出单元的旋转驱动之前，固定构件的旋转停止，并且在停止之后，固定构件被控制 旋转

公开(公告)号：US20130251422A1

公开(公告)日：2013-09-26

申请号：US13795267

申请日：2013-03-12

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

发明人： Naoki Iwaya ,  Masahiko Satoh ,  Masaaki Yoshikawa ,  Hiroshi Yoshinaga ,  Kenji Ishii ,  Tadashi Ogawa ,  Hiromasa Takagi ,  Takeshi Uchitani ,  Takuya Seshita ,  Takahiro Imada ,  Hajime Gotoh ,  Akira Suzuki ,  Teppei Kawata ,  Toshihiko Shimokawa ,  Arinobu Yoshiura ,  Takamasa Hase ,  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 flexible belt, an elongated stationary pad, a rotatable pressure member, a rotary driver, a releasable biasing mechanism, a first guide member, and a second guide member. The endless flexible belt is looped into a generally cylindrical configuration. The elongated stationary pad is stationarily disposed inside the loop of the belt. The rotatable pressure member is disposed parallel to the stationary pad with the belt interposed between the pressure member and the stationary pad. The rotary driver is operatively connected with the pressure member to impart torque to the pressure member. The releasable biasing mechanism is operatively connected with the pressure member to apply a releasable pressure to the pressure member against the belt in a load direction. The first guide member defines a first elongated opening. The second guide member defines a second elongated opening.

摘要翻译： 定影装置包括可旋转的环形柔性带，细长固定垫，可旋转压力构件，旋转驱动器，可释放偏压机构，第一引导构件和第二引导构件。 环形柔性带环绕成大致圆柱形的构造。 细长的固定垫固定地设置在带的环内。 可旋转的压力构件平行于固定衬垫设置，其中带插入在压力构件和固定衬垫之间。 旋转驱动器与压力构件可操作地连接以向压力构件赋予扭矩。 可释放的偏置机构与压力构件可操作地连接，以在负载方向上向压力构件施加可释放的压力。 第一引导构件限定第一细长开口。 第二引导构件限定第二细长开口。

公开(公告)号：US20150168897A1

公开(公告)日：2015-06-18

申请号：US14631479

申请日：2015-02-25

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

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 ,  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。

公开(公告)号：US09927748B2

公开(公告)日：2018-03-27

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.

公开(公告)号：US09405250B2

公开(公告)日：2016-08-02

申请号：US14631479

申请日：2015-02-25

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

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 ,  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.

公开(公告)号：US09069304B2

公开(公告)日：2015-06-30

申请号：US14072027

申请日：2013-11-05

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

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

IPC分类号： G03G15/20

CPC分类号： G03G15/205 ,  G03G2215/2035

摘要： In the present invention, upon return from a standby mode or sleep mode, image data is acquired as warming-up time estimate information for estimating the warming-up time to increase the temperature of a fixing belt to a target fixing temperature and, if the acquired image data is the data on a black-and-white image, control is performed to delay the heating start timing of the fixing belt.

摘要翻译： 在本发明中，在从待机模式或睡眠模式返回时，获取图像数据作为用于估计预热时间以将定影带的温度升高到目标定影温度的预热时间估计信息，并且如果 获取的图像数据是黑白图像上的数据，执行控制以延迟定影带的加热开始定时。

公开(公告)号：US08831498B2

公开(公告)日：2014-09-09

申请号：US13795267

申请日：2013-03-12

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

发明人： Naoki Iwaya ,  Masahiko Satoh ,  Masaaki Yoshikawa ,  Hiroshi Yoshinaga ,  Kenji Ishii ,  Tadashi Ogawa ,  Hiromasa Takagi ,  Takeshi Uchitani ,  Takuya Seshita ,  Takahiro Imada ,  Hajime Gotoh ,  Akira Suzuki ,  Teppei Kawata ,  Toshihiko Shimokawa ,  Arinobu Yoshiura ,  Takamasa Hase ,  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 flexible belt, an elongated stationary pad, a rotatable pressure member, a rotary driver, a releasable biasing mechanism, a first guide member, and a second guide member. The endless flexible belt is looped into a generally cylindrical configuration. The elongated stationary pad is stationarily disposed inside the loop of the belt. The rotatable pressure member is disposed parallel to the stationary pad with the belt interposed between the pressure member and the stationary pad. The rotary driver is operatively connected with the pressure member to impart torque to the pressure member. The releasable biasing mechanism is operatively connected with the pressure member to apply a releasable pressure to the pressure member against the belt in a load direction. The first guide member defines a first elongated opening. The second guide member defines a second elongated opening.

摘要翻译： 定影装置包括可旋转的环形柔性带，细长固定垫，可旋转压力构件，旋转驱动器，可释放偏压机构，第一引导构件和第二引导构件。 环形柔性带环绕成大致圆柱形的构造。 细长的固定垫固定地设置在带的环内。 可旋转的压力构件平行于固定衬垫设置，其中带插入在压力构件和固定衬垫之间。 旋转驱动器与压力构件可操作地连接以向压力构件赋予扭矩。 可释放的偏置机构与压力构件可操作地连接，以在负载方向上向压力构件施加可释放的压力。 第一引导构件限定第一细长开口。 第二引导构件限定第二细长开口。

公开(公告)号：US09239559B2

公开(公告)日：2016-01-19

申请号：US13763040

申请日：2013-02-08

申请人： Takeshi Uchitani ,  Masahiko Satoh ,  Kenji Ishii ,  Tadashi Ogawa ,  Teppei Kawata ,  Arinobu Yoshiura ,  Toshihiko Shimokawa ,  Kensuke Yamaji ,  Takamasa Hase ,  Shuutaroh Yuasa ,  Masaaki Yoshikawa ,  Hiromasa Takagi ,  Takahiro Imada ,  Hajime Gotoh ,  Akira Suzuki ,  Takuya Seshita ,  Hiroshi Yoshinaga ,  Kazuya Saito ,  Shinichi Namekata ,  Takayuki Seki ,  Yuji Arai ,  Ryuuichi Mimbu ,  Yoshiki Yamaguchi ,  Shuntaroh Tamaki ,  Yutaka Ikebuchi

发明人： Takeshi Uchitani ,  Masahiko Satoh ,  Kenji Ishii ,  Tadashi Ogawa ,  Teppei Kawata ,  Arinobu Yoshiura ,  Toshihiko Shimokawa ,  Kensuke Yamaji ,  Takamasa Hase ,  Shuutaroh Yuasa ,  Masaaki Yoshikawa ,  Hiromasa Takagi ,  Takahiro Imada ,  Hajime Gotoh ,  Akira Suzuki ,  Takuya Seshita ,  Hiroshi Yoshinaga ,  Kazuya Saito ,  Shinichi Namekata ,  Takayuki Seki ,  Yuji Arai ,  Ryuuichi Mimbu ,  Yoshiki Yamaguchi ,  Shuntaroh Tamaki ,  Yutaka Ikebuchi

IPC分类号： G03G15/20

CPC分类号： G03G15/2064 ,  G03G15/2039 ,  G03G15/205 ,  G03G2215/2035

摘要： A fixing device includes a heat source; a fixing member looped into a generally cylindrical shape to rotate in a circumferential direction thereof and partially heated by the heat source and to heat a surface of a recording medium bearing an unfixed toner image to fix the unfixed toner image thereon in a fixing process; a rotary pressing member disposed facing the fixing member to form a nip therebetween, through which the recording medium is transported in a transport direction; and a rotation driver to rotate one of the fixing member and the pressing member. In a case in which the fixing member is halted for a reason other than the fixing process while power of the fixing device is on, electric power is not supplied to the heat source and the fixing member is rotated by a predetermined amount or more after the fixing member is halted.

摘要翻译： 定影装置包括热源; 固定构件环绕成大致圆筒形状，以在其圆周方向上旋转并由热源部分加热，并且加热承载未定影调色剂图像的记录介质的表面，以在定影过程中将未定影调色剂图像定影在其上; 旋转按压构件，其面向所述固定构件设置以在其间形成辊隙，所述记录介质通过所述辊隙沿输送方向输送; 以及旋转驱动器，用于旋转固定构件和按压构件之一。 在定影装置的电源接通时，除了定影处理之外固定构件被停止的情况下，不向热源供电，并且固定构件在 固定件停止。

公开(公告)号：US20130209131A1

公开(公告)日：2013-08-15

申请号：US13763047

申请日：2013-02-08

申请人： Takeshi Uchitani ,  Masahiko Satoh ,  Masaaki Yoshikawa ,  Kenji Ishii ,  Tadashi Ogawa ,  Takahiro Imada ,  Hiromasa Takagi ,  Hiroshi Yoshinaga ,  Arinobu Yoshiura ,  Teppei Kawata ,  Takamasa Hase ,  Hajime Gotoh ,  Takuya Seshita ,  Kazuya Saito ,  Toshihiko Shimokawa ,  Kensuke Yamaji ,  Shuutaroh Yuasa ,  Akira Suzuki ,  Shinichi Namekata ,  Ryota Yamashina ,  Yasunori Ishigaya

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

IPC分类号： G03G15/20

CPC分类号： G03G15/2039 ,  G03G15/205 ,  G03G2215/2035

摘要： A fixing device capable of shifting to a sleep state includes a heat source; a rotatable fixing member that is partly heated by the heat source to heat an unfixed image carrying surface of a recording medium; a rotatable pressing member that is in pressure contact with the fixing member to form a nip portion between the pressing member and the fixing member; a rotation drive unit that directly or indirectly rotates the fixing member; a temperature detecting unit that detects a temperature of the fixing member; and a controller configured to prohibit the fixing device from shifting to the sleep state when the temperature of the fixing member in a region facing the heat source is equal to or more than a predetermined temperature T1 at a point when a predetermined time period t1 has elapsed from the stop of rotation drive of the rotation drive unit.