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1. 发明申请

US20190094764A1 FIXING DEVICE AND IMAGE FORMING APPARATUS 审中-公开
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.

2. 发明申请

US20160327891A1 IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD 审中-公开
公开(公告)号：US20160327891A1
公开(公告)日：2016-11-10
申请号：US15216863
申请日：2016-07-22
申请人： Yutaka IKEBUCHI , Hiroshi YOSHINAGA , Takayuki SEKI , Yuji ARAI , Ryuuichi MIMBU , Shuntaro TAMAKI , Kazuya SAITO , Shuutaroh YUASA , Toshihiko SHIMOKAWA , Masaaki YOSHIKAWA , Toshiharu HACHISUKA
发明人： Yutaka IKEBUCHI , Hiroshi YOSHINAGA , Takayuki SEKI , Yuji ARAI , Ryuuichi MIMBU , Shuntaro TAMAKI , Kazuya SAITO , Shuutaroh YUASA , Toshihiko SHIMOKAWA , Masaaki YOSHIKAWA , Toshiharu HACHISUKA
IPC分类号： G03G15/20 , G03G15/00
CPC分类号： G03G15/2039 , G03G15/2042 , G03G15/205 , G03G15/80 , G03G2215/2035
摘要： An image forming apparatus includes a first heater disposed opposite and heating at least a center of a fixing belt in an axial direction thereof and a second heater disposed opposite and heating at least a lateral end of the fixing belt in the axial direction thereof. A power supply supplies power to the first heater and the second heater. A controller that controls the power supply includes a calculator to calculate an elapsed time elapsed after at least one of the first heater and the second heater starts heating the fixing belt. The controller controls the power supply to supply power to the first heater and the second heater such that a power density of the second heater is greater than a power density of the first heater when the elapsed time calculated by the calculator is smaller than a predetermined time.

3. 发明申请

US20160274516A1 FIXING DEVICE AND IMAGE FORMING APPARATUS 有权
标题翻译：固定装置和图像形成装置
公开(公告)号：US20160274516A1
公开(公告)日：2016-09-22
申请号：US15070735
申请日：2016-03-15
申请人： Yoshiki YAMAGUCHI , Yoshio HATTORI , Haruyuki HONDA , Ryuuichi MIMBU , Toshihiko SHIMOKAWA , Yutaka IKEBUCHI , Yasunori ISHIGAYA , Kazuya SAITO , Keitaro SHOJI , Ryohei MATSUDA
发明人： Yoshiki YAMAGUCHI , Yoshio HATTORI , Haruyuki HONDA , Ryuuichi MIMBU , Toshihiko SHIMOKAWA , Yutaka IKEBUCHI , Yasunori ISHIGAYA , Kazuya SAITO , Keitaro SHOJI , Ryohei MATSUDA
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G15/2028 , G03G15/6573 , G03G2215/00421 , G03G2215/2035
摘要： A fixing device includes an endless fixing belt; a pressure roller to contact the fixing belt; a nip forming member to press the pressure roller from the fixing belt; a nip portion formed between the fixing belt and the pressure roller; a heater to heat the fixing belt to fuse and fix toner onto a recording sheet in the nip portion; an auxiliary driven roller; an auxiliary drive roller to drive the driven roller; an auxiliary nip portion, formed between an outer circumferential surface of the auxiliary driven roller and an outer circumferential surface of the auxiliary drive roller, to nip the recording sheet after toner fixation conveyed from the nip portion; and an outlet guide member, disposed downstream of the auxiliary nip portion, to guide the recording sheet after toner fixation conveyed from the auxiliary nip portion, with the toner-fixed recording sheet surface bent in a concave shape.
摘要翻译：定影装置包括环形定影带; 与所述定影带接触的压力辊; 夹持形成构件，用于从定影带按压压力辊; 形成在所述定影带和所述加压辊之间的辊隙部; 加热器，用于加热定影带以将调色剂熔合并固定到辊隙部分中的记录片材上; 辅助从动辊; 用于驱动从动辊的辅助驱动辊; 形成在辅助从动辊的外周表面和辅助驱动辊的外圆周表面之间的辅助夹持部分，用于在从夹持部分输送的调色剂定影之后夹持记录纸; 以及布置在辅助夹持部分下游的出口引导件，用于在调色剂定影从辅助夹持部分输送之后引导记录纸，调色剂固定的记录纸张表面弯曲成凹形。

4. 发明申请

US20140356037A1 FIXING DEVICE AND IMAGE FORMING APPARATUS 有权
标题翻译：固定装置和图像形成装置
公开(公告)号：US20140356037A1
公开(公告)日：2014-12-04
申请号：US14278252
申请日：2014-05-15
申请人： Toshihiko SHIMOKAWA , Yutaka IKEBUCHI , Hiroshi YOSHINAGA , Takayuki SEKI , Yuji ARAI , Ryuuichi MIMBU , Shuntaro TAMAKI , Kazuya SAITO , Shuutaroh YUASA , Masaaki YOSHIKAWA , Takuya SESHITA , Hajime GOTOH , Takahiro IMADA , Kensuke YAMAJI , Akira SUZUKI
发明人： Toshihiko SHIMOKAWA , Yutaka IKEBUCHI , Hiroshi YOSHINAGA , Takayuki SEKI , Yuji ARAI , Ryuuichi MIMBU , Shuntaro TAMAKI , Kazuya SAITO , Shuutaroh YUASA , Masaaki YOSHIKAWA , Takuya SESHITA , Hajime GOTOH , Takahiro IMADA , Kensuke YAMAJI , Akira SUZUKI
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G15/2017 , G03G15/2039 , G03G15/2042 , G03G2215/2035
摘要： A fixing device includes a fixing rotator, a first heat generator and a second heat generator that heat the fixing rotator, and a support disposed inside the fixing rotator. A reflector, interposed between the support and each of the first heat generator and the second heat generator, reflects light radiated from the first heat generator and the second heat generator toward the fixing rotator. The reflector includes a body mounted on the support and a shield portion projecting from the body toward the first heat generator and the second heat generator to shield the fixing rotator from the first heat generator and the second heat generator. An electric circuit is connected to the first heat generator and the second heat generator. A heat generation restrainer is provided in the electric circuit to restrict heat generation in the electric circuit.
摘要翻译：定影装置包括固定旋转器，第一热发生器和加热定影旋转器的第二热发生器，以及设置在定影旋转器内的支撑件。插入在支撑件和第一热发生器和第二热发生器中的每一个之间的反射器将从第一热发生器和第二发热体辐射的光反射到定影转子。反射器包括安装在支撑体上的主体和从主体向第一热发生器突出的屏蔽部分和第二热发生器，用于屏蔽来自第一发热体和第二发热体的固定旋转体。电路连接到第一热发生器和第二热发生器。在电路中设置有发热抑制器，以限制电路中的发热。

5. 发明申请

US20140341626A1 FIXING DEVICE, IMAGE FORMING APPARATUS, AND FIXING METHOD 有权
标题翻译：固定装置，图像形成装置和固定方法
公开(公告)号：US20140341626A1
公开(公告)日：2014-11-20
申请号：US14269314
申请日：2014-05-05
申请人： Ryuuichi MIMBU , Masaaki YOSHIKAWA , Takayuki SEKI , Takeshi YAMAMOTO , Yutaka IKEBUCHI , Takuya SESHITA , Shuntaro TAMAKI , Hajime GOTOH , Takahiro IMADA , Kazuya SAITO , Toshihiko SHIMOKAWA , Shuutaroh YUASA , Kensuke YAMAJI , Akira SUZUKI , Hiroshi YOSHINAGA , Yuji ARAI
发明人： Ryuuichi MIMBU , Masaaki YOSHIKAWA , Takayuki SEKI , Takeshi YAMAMOTO , Yutaka IKEBUCHI , Takuya SESHITA , Shuntaro TAMAKI , Hajime GOTOH , Takahiro IMADA , Kazuya SAITO , Toshihiko SHIMOKAWA , Shuutaroh YUASA , Kensuke YAMAJI , Akira SUZUKI , Hiroshi YOSHINAGA , Yuji ARAI
IPC分类号： G03G15/20
CPC分类号： G03G15/2032 , G03G15/2017 , G03G15/2042
摘要： A fixing device includes a fixing rotator heated by a heater and a pressing rotator to press against the fixing rotator to form a fixing nip therebetween. A heating span adjuster, interposed between the heater and the fixing rotator, is movable in a circumferential direction of the fixing rotator. The heating span adjuster moves to a retracted position where the heating span adjuster allows the heater to heat the fixing rotator in an increased axial heating span of the fixing rotator after the heater starts heating the fixing rotator until the fixing rotator and the pressing rotator start conveying the recording medium through the fixing nip. The heating span adjuster at the retracted position is outboard from a circumferential, direct heating span of the fixing rotator where the heater heats the fixing rotator directly.
摘要翻译：定影装置包括由加热器加热的定影旋转器和按压旋转器以压靠固定旋转器以在其间形成定影辊隙。插入在加热器和定影旋转器之间的加热跨度调节器可在定影旋转器的圆周方向上移动。加热跨度调节器移动到缩回位置，在加热范围调整器允许加热器在加热器开始加热定影旋转器之后加热固定旋转器的增加的轴向加热跨度，直到定影旋转器和按压旋转器开始传送记录介质通过定影辊隙。在缩回位置的加热跨度调节器从定影旋转器的周向，直接加热跨度外侧，其中加热器直接加热定影旋转器。

6. 发明申请

US20130209125A1 FIXING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME 有权
标题翻译：固定装置和图像形成装置，包括它们
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。

7. 发明申请

US20130209124A1 FIXING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME 有权
标题翻译：固定装置和成像装置的图像形成装置
公开(公告)号：US20130209124A1
公开(公告)日：2013-08-15
申请号：US13716651
申请日：2012-12-17
申请人： Kazuya SAITO , Takeshi Uchitani , Takamasa Hase , Shuutaroh Yuasa , Ippei Fujimoto , Shinichi Namekata , Ryota Yamashina , Hiroshi Seo , Takumi Waida
发明人： Kazuya SAITO , Takeshi Uchitani , Takamasa Hase , Shuutaroh Yuasa , Ippei Fujimoto , Shinichi Namekata , Ryota Yamashina , Hiroshi Seo , Takumi Waida
IPC分类号： G03G15/20
CPC分类号： G03G15/2078 , G03G15/2007 , G03G15/2039 , G03G15/2042 , G03G2215/2035
摘要： A fixing device includes a heating device to heat an endless rotary body with radiant heat, a power source to supply power to the heating device, a first heat source to heat a region on the endless rotary body corresponding to a width of the small size sheet, and a second heat source to heat regions on the endless rotary body corresponding to both widthwise ends of the large size sheet outside the width of the small size sheet. The power source supplies power only to the first heat source when the small size sheet is printed and to both the first and second heat sources when the large size sheet is printed. The power source supplies more power to the first heat source when the small size sheet is printed than when the large size sheet is printed within a maximum power available to the fixing device.
摘要翻译：定影装置包括：用辐射热加热环形旋转体的加热装置，向加热装置供电的电源;加热环形旋转体上对应于小尺寸片材宽度的区域的第一热源; 以及第二热源，用于对与所述小尺寸片材的宽度以外的所述大尺寸片材的宽度方向两端部对应的所述环形旋转体上的区域进行加热。当打印小尺寸片材时，电源仅向第一热源供电，并且当打印大尺寸片材时，电源仅供给第一热源。当打印小尺寸片材时，电源为第一热源提供更多的电力，而不是在定影装置可用的最大功率内打印大尺寸片材时。

8. 发明申请

US20120219312A1 FIXING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME 失效
标题翻译：固定装置和成像装置的图像形成装置
公开(公告)号：US20120219312A1
公开(公告)日：2012-08-30
申请号：US13366939
申请日：2012-02-06
申请人： Shuutaroh YUASA , Masanao EHARA , Tadashi OGAWA , Satoshi UENO , Hiroshi SEO , Teppei KAWATA , Shuntaroh TAMAKI , Takamasa HASE , Kazuya SAITO , Kensuke YAMAJI
发明人： Shuutaroh YUASA , Masanao EHARA , Tadashi OGAWA , Satoshi UENO , Hiroshi SEO , Teppei KAWATA , Shuntaroh TAMAKI , Takamasa HASE , Kazuya SAITO , Kensuke YAMAJI
IPC分类号： G03G21/20 , G03G15/20
CPC分类号： G03G15/2039
摘要： A fixing device includes a fixing rotary body rotatable in a predetermined direction of rotation to radiate infrared rays; a pressing rotary body, rotatable in a direction counter to the direction of rotation of the fixing rotary body, pressed against the fixing rotary body to form a fixing nip therebetween through which a recording medium bearing a toner image is conveyed; a heater disposed opposite the fixing rotary body to heat the fixing rotary body; a temperature detector spaced apart from the fixing rotary body to detect a temperature of the fixing rotary body based on the infrared rays from the fixing rotary body and disposed below the fixing nip in a vertical direction; and a tube disposed between the fixing rotary body and the temperature detector, the tube through which the infrared rays from the fixing rotary body enter the temperature detector.
摘要翻译：定影装置包括可沿预定旋转方向旋转的固定旋转体，以便辐射红外线; 按照与固定旋转体的旋转方向相反的方向旋转的按压旋转体，压靠在定影旋转体上，以形成传送带有调色剂图像的记录介质的定影辊隙; 与所述固定旋转体相对设置的加热所述固定旋转体的加热器; 与固定旋转体间隔开的温度检测器，基于来自定影旋转体的红外线检测固定旋转体的温度，并在垂直方向上设置在定影辊隙的下方; 以及设置在固定旋转体和温度检测器之间的管，来自定影旋转体的红外线通过该管进入温度检测器。

9. 发明申请

US20170255149A1 NIP-FORMING MEMBER, FIXING UNIT, AND IMAGE FORMING APPARATUS 审中-公开
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.

10. 发明申请

US20170017182A1 FIXING DEVICE AND IMAGE FORMING APPARATUS 有权
标题翻译：固定装置和图像形成装置
公开(公告)号：US20170017182A1
公开(公告)日：2017-01-19
申请号：US15202859
申请日：2016-07-06
申请人： Kazuya SAITO , Yasunori ISHIGAYA , Yutaka IKEBUCHI , Keitaro SHOJI , Ryohei MATSUDA
发明人： Kazuya SAITO , Yasunori ISHIGAYA , Yutaka IKEBUCHI , Keitaro SHOJI , Ryohei MATSUDA
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G15/2042
摘要： A fixing device includes a primary heat generator and a secondary heat generator to heat an endless belt and a temperature detector, disposed opposite the secondary heat generator, to detect a temperature of the endless belt. The secondary heat generator includes an inboard edge and an outboard edge disposed outboard from the inboard edge in an axial direction of the endless belt. The secondary heat generator has an inboard length defined between a center of a detection span of the temperature detector and the inboard edge in the axial direction of the endless belt. The secondary heat generator further has an outboard length defined between the center of the detection span of the temperature detector and the outboard edge in the axial direction of the endless belt. The secondary heat generator defines a ratio of the outboard length to the inboard length that is greater than 7/3.
摘要翻译：固定装置包括：一次发热体和二次发热体，用于加热与二次发热体相对设置的环形带和温度检测器，以检测环形带的温度。二次发热器包括沿环形带的轴向方向设置在内侧边缘外侧的内侧边缘和外侧边缘。二次发热器具有限定在温度检测器的检测范围的中心和环形带的轴向方向上的内侧边缘之间的内侧长度。次级发热器还具有限定在温度检测器的检测范围的中心与环形带的轴向方向外侧边缘之间的外侧长度。二次发热器定义了外侧长度与内侧长度的比值大于7/3。

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