公开(公告)号：US20190094764A1

公开(公告)日：2019-03-28

申请号：US16185091

申请日：2018-11-09

申请人： Yasunori ISHIGAYA ,  Kazuya SAITO ,  Keitaro SHOJI ,  Toshihiko SHIMOKAWA ,  Hiromasa TAKAGI

发明人： Yasunori ISHIGAYA ,  Kazuya SAITO ,  Keitaro SHOJI ,  Toshihiko SHIMOKAWA ,  Hiromasa TAKAGI

IPC分类号： G03G15/20

摘要： A fixing device includes a fixing rotator being rotatable and a heater to heat the fixing rotator. The heater includes a tube, a heat generator, disposed inside the tube, to generate heat, and a sealing portion, disposed at each lateral end of the tube in a longitudinal direction of the heater, to seal the tube. A reflector reflects heat radiated from the heater toward the fixing rotator. The reflector includes an outboard edge being disposed inboard from at least a part of the sealing portion in an axial direction of the fixing rotator.

公开(公告)号：US20170248879A1

公开(公告)日：2017-08-31

申请号：US15410179

申请日：2017-01-19

申请人： Yasunori ISHIGAYA ,  Kazuya SAITO ,  Keitaro SHOJI ,  Toshihiko SHIMOKAWA ,  Hiromasa TAKAGI

发明人： Yasunori ISHIGAYA ,  Kazuya SAITO ,  Keitaro SHOJI ,  Toshihiko SHIMOKAWA ,  Hiromasa TAKAGI

IPC分类号： G03G15/20

CPC分类号： G03G15/2007 ,  G03G15/2042 ,  G03G15/2053

摘要： A fixing device includes a fixing rotator being rotatable and a heater to heat the fixing rotator. The heater includes a tube, a heat generator, disposed inside the tube, to generate heat, and a sealing portion, disposed at each lateral end of the tube in a longitudinal direction of the heater, to seal the tube. The sealing portion includes an inboard edge. A reflector reflects heat radiated from the heater toward the fixing rotator. The reflector includes an outboard edge being disposed inboard from the inboard edge of the sealing portion in an axial direction of the fixing rotator.

公开(公告)号：US20170212457A1

公开(公告)日：2017-07-27

申请号：US15401668

申请日：2017-01-09

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

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

IPC分类号： G03G15/20

CPC分类号： G03G15/2039 ,  G03G2215/2035

摘要： An image forming apparatus includes a fixing device to fix a toner image onto a recording medium, a voltmeter to measure an input voltage from an external source, and a controller operatively connected to the fixing device and the voltmeter. The fixing device includes an endless, fixing rotator formed into a loop, a heater to heat the fixing rotator, a pressure pad disposed inside the loop, and a pressure rotator disposed opposite the pressure pad via the fixing rotator to press the fixing rotator against the pressure pad to form a fixing nip between the fixing rotator and the pressure rotator, through which the recording medium bearing the toner image is conveyed. The controller controls a heating operation of the heater and a fixing operation of the fixing device to fix the toner image onto the recording medium, based on the input voltage measured by the voltmeter.

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：US20160378033A1

公开(公告)日：2016-12-29

申请号：US15160374

申请日：2016-05-20

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

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

IPC分类号： G03G15/20

CPC分类号： G03G15/206 ,  G03G2215/0132 ,  G03G2215/2035

摘要： A fixing device includes a rotatable endless belt formed into a loop and a heater disposed opposite the endless belt to heat the endless belt. A nip formation pad is disposed inside the loop formed by the endless belt. The nip formation pad includes a metallic thermal equalizer extending in an axial direction of the endless belt. A rotatable pressure rotator presses against the nip formation pad via the endless belt to form a fixing nip between the endless belt and the pressure rotator, through which a recording medium bearing a toner image is conveyed. The pressure rotator includes an increased tackiness portion disposed at a lateral end of the pressure rotator in an axial direction of the pressure rotator to transmit a driving force to the endless belt. The increased tackiness portion is disposed opposite the thermal equalizer of the nip formation pad.

摘要翻译： 定影装置包括形成环的可旋转环形带和与环形带相对设置的加热环形带的加热器。 辊隙形成垫设置在由环形带形成的环内。 压区形成垫包括在环形带的轴向方向上延伸的金属热均衡器。 可旋转的压力旋转器通过环形带压靠在辊隙形成垫上，以在环形带和压力旋转器之间形成定影辊隙，通过该固定辊隙，承载有调色剂图像的记录介质。 压力旋转器包括在压力旋转器的轴向方向上设置在压力转子的侧端处的增加的粘性部分，以将驱动力传递到环形带。 增加的粘性部分设置成与辊隙形成垫的热均衡器相对。

公开(公告)号：US20170255149A1

公开(公告)日：2017-09-07

申请号：US15433667

申请日：2017-02-15

申请人： Hiromasa TAKAGI ,  Yasunori ISHIGAYA ,  Kazuya SAITO ,  Toshihiko SHIMOKAWA ,  Keitaro SHOJI

发明人： Hiromasa TAKAGI ,  Yasunori ISHIGAYA ,  Kazuya SAITO ,  Toshihiko SHIMOKAWA ,  Keitaro SHOJI

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G2215/0132 ,  G03G2215/2035

摘要： A nip-forming member includes: a first nip-forming member configured to be a main body of the nip-forming member; and a second nip-forming member disposed on a surface of the first nip-forming member, the surface facing the inner circumferential surface, the second nip-forming member extending in a direction orthogonal to a rotating direction of the fixing belt. Both ends of the second nip-forming member on an upstream side and a downstream side of the rotating direction are bent in a direction away from the nipping part, in order to create a pair of side-wall portions, so that the second nip-forming member has a concave cross-section for accommodating the first nip-forming member. The second nip-forming member has a restraining portion at a position located on the side-wall portion created on the upstream side, the restraining portion being configured to restrain the first nip-forming member not to be detached from the concave cross-section.

公开(公告)号：US20150227095A1

公开(公告)日：2015-08-13

申请号：US14693550

申请日：2015-04-22

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.

摘要翻译： 能够转移到睡眠状态的固定装置包括热源; 可旋转的固定构件，其被热源部分地加热以加热记录介质的未固定的图像承载表面; 与所述固定部件压力接触以在所述按压部件和所述固定部件之间形成夹持部的旋转按压部件; 旋转驱动单元，其直接或间接地旋转所述固定构件; 温度检测单元，其检测所述固定构件的温度; 以及控制器，被配置为当经过预定时间段t1的时刻，当面向热源的区域中的固定构件的温度等于或大于预定温度T1时，禁止定影装置转移到睡眠状态 从旋转驱动单元的旋转驱动停止。

公开(公告)号：US20200159149A1

公开(公告)日：2020-05-21

申请号：US16676673

申请日：2019-11-07

申请人： Takumi WAIDA ,  Yoshio HATTORI ,  Yasunori ISHIGAYA ,  Yoshikuni SASAKI ,  Takahiro IMADA ,  Hironori YAMAOKA ,  Hiromasa TAKAGI ,  Keitaro SHOJI

发明人： Takumi WAIDA ,  Yoshio HATTORI ,  Yasunori ISHIGAYA ,  Yoshikuni SASAKI ,  Takahiro IMADA ,  Hironori YAMAOKA ,  Hiromasa TAKAGI ,  Keitaro SHOJI

IPC分类号： G03G15/20 ,  G03G15/02

摘要： A fixing device includes a fixing rotator, a pressure rotator, a cleaner, a moving assembly, and a temperature detector. The fixing rotator heats and fixes a toner image onto a recording medium. The pressure rotator presses against the fixing rotator. The cleaner contacts and cleans a cleaning target, which includes one of the fixing rotator and the pressure rotator. The moving assembly moves the cleaner between a contact position where the cleaner contacts the cleaning target and a separate position where the cleaner is apart from the cleaning target. The temperature detector detects a temperature of one of the cleaner and the cleaning target. The moving assembly moves the cleaner from the contact position to the separate position or from the separate position to the contact position during rotation of the cleaning target, in a case in which the temperature detected is greater than a given value

公开(公告)号：US20150234329A1

公开(公告)日：2015-08-20

申请号：US14703508

申请日：2015-05-04

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

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

IPC分类号： G03G15/20

CPC分类号： G03G15/2039 ,  G03G15/205 ,  G03G15/80 ,  G03G2215/2035

摘要： According to an embodiment, provided is a fixing device that includes: a rotatable fixing member that heats a recording medium on a side carrying an unfixed image; a rotatable pressing member that is pressed and is contacted with the fixing member to form a nip portion between the pressing member and the fixing member; a heat source heating the fixing member; a relay switch provided in an energizing path for the heat source; a temperature detection sensor detecting a temperature of the fixing member; and a control unit that controls energization of the heat source according to the temperature detected by the temperature detection sensor. The control unit keeps the relay switch in an off state if the temperature of the fixing member is equal to or more than a predetermined temperature when the fixing member has stopped rotation.

摘要翻译： 根据实施例，提供一种定影装置，其包括：可旋转的固定构件，其在承载未定影图像的一侧加热记录介质; 可旋转的按压构件，其被按压并与所述固定构件接触以在所述按压构件和所述固定构件之间形成夹持部; 加热所述固定构件的热源; 设置在所述热源的通电路径中的继电器开关; 检测所述固定部件的温度的温度检测传感器; 以及控制单元，其根据由温度检测传感器检测到的温度来控制热源的通电。 如果固定部件停止转动时，如果固定部件的温度等于或大于预定温度，则控制单元将继电器开关保持在关闭状态。

公开(公告)号：US20130209125A1

公开(公告)日：2013-08-15

申请号：US13751922

申请日：2013-01-28

申请人： 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

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。