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1. 发明授权

EP2328040B1 Fixing device and image forming apparatus incorporating same 有权
公开(公告)号：EP2328040B1
公开(公告)日：2018-10-31
申请号：EP10191820.9
申请日：2010-11-19
申请人： Ricoh Company, Ltd.
发明人： Ishii, Kenji , Yoshikawa, Masaaki , Yoshinaga, Hiroshi , Iwaya, Naoki , Yamaguchi, Yoshiki , Ikebuchi, Yutaka , Tokuda, Tetsuo , Imada, Takahiro , Hase, Takamasa , Shimokawa, Toshihiko , Fujimoto, Ippei
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G15/2039 , G03G2215/2035
摘要： A fixing device (20) includes a pressing member (31) pressed against a fixing member (21) to form a nip (N) between the pressing member (31) and the fixing member (21) through which a recording medium bearing a toner image passes. A heater support (23) provided inside the fixing member (21) supports a laminated heater (22). The laminated heater (22) is provided between the fixing member (21) and the heater support (23) and includes a flexible, first heat generation sheet (22s) that includes an insulating base layer (22a), at least one resistant heat generation layer (22b) provided on the base layer (22a) to generate heat, and at least one electrode layer (22c) provided on the base layer (22a) to supply power to the at least one resistant heat generation layer (22b).

2. 发明公开

EP2453318A3 Fixing device and image forming apparatus incorporating same 有权
标题翻译：固定装置和包含其的图像形成装置
公开(公告)号：EP2453318A3
公开(公告)日：2017-05-10
申请号：EP11188655.2
申请日：2011-11-10
申请人： Ricoh Company, Ltd.
发明人： Tokuda, Tetsuo , Fujimoto, Ippei , Yamaguchi, Yoshiki , Yoshiura, Arinobu , Imada, Takahiro , Gotoh, Hajime , Shimokawa, Toshihiko , Yoshikawa, Masaaki , Ishii, Kenji , Yoshinaga, Hiroshi , Arai, Yuji , Takagi, Hiromasa , Iwaya, Naoki , Ikebuchi, Yutaka , Seshita, Takuya
IPC分类号： G03G15/20
CPC分类号： G03G15/2039 , G03G2215/2035
摘要： A fixing device includes a rotatable, flexible fuser belt, a heater, a fuser pad, and a pressure member. The fuser belt is looped into a generally cylindrical configuration. The heater is disposed adjacent to the fuser belt to heat the fuser belt. The fuser pad is disposed inside the loop of the fuser belt, and has an outer peripheral surface thereof formed in a generally concave configuration. The pressure member is disposed opposite the fuser pad with the fuser belt interposed between the fuser pad and the pressure member. The pressure member presses in a load direction against the outer peripheral surface of the fuser pad through the fuser belt to form a fixing nip therebetween. The fuser pad includes, along the outer peripheral surface thereof, a protruding portion and an inwardly curved portion adjoining the protruding portion to face an outer circumferential surface of the pressure member.
摘要翻译：定影装置包括可旋转的柔性定影带，加热器，定影垫和压力构件。定影带被卷成大致圆柱形的构造。加热器设置在定影带附近以加热定影带。定影垫布置在定影带的环的内部，并且其外周表面形成为大致凹形结构。压力构件与定影垫相对设置，定影带介于定影垫和压力构件之间。加压构件通过定影带在加载方向上压靠定影器垫的外周表面以在其间形成定影辊隙。定影垫沿着其外周表面包括突出部分和与突出部分相邻以面向加压部件的外周表面的向内弯曲部分。

3. 发明公开

EP2482138A1 Fixing device and method, and image forming apparatus incorporating same 审中-公开
标题翻译： Fixiervorrichtung und -verfahren sowie Bilderzeugungsvorrichtung damit
公开(公告)号：EP2482138A1
公开(公告)日：2012-08-01
申请号：EP12150030.0
申请日：2012-01-03
申请人： Ricoh Company, Ltd.
发明人： Ikebuchi, Yutaka , Imada, Takahiro , Fujimoto, Ippei , Yoshinaga, Hiroshi , Gotoh, Hajime , Yoshiura, Arinobu , Shimokawa, Toshihiko , Yoshikawa, Masaaki , Ishii, Kenji , Arai, Yuji , Takagi, Hiromasa , Iwaya, Naoki , Tokuda, Tetsuo , Yamaguchi, Yoshiki , Seshita, Takuya
IPC分类号： G03G15/20
CPC分类号： G03G15/205
摘要： A fixing device (10) includes a heater (23) to generate heat based on soft start control. The heater (23) is supplied with power using different power-turn-on-duty control patterns in accordance with power requirements and an operation mode of the fixing device (10).
摘要翻译：定影装置（10）包括基于软启动控制产生热量的加热器（23）。根据功率要求和定影装置（10）的操作模式，使用不同的功率转向占空比控制模式向加热器（23）供电。

4. 发明公开

EP2293154A3 Fixing device and image forming apparatus incorporating same 审中-公开
标题翻译：固定装置和包含其的图像形成装置
公开(公告)号：EP2293154A3
公开(公告)日：2011-10-05
申请号：EP10174786.3
申请日：2010-09-01
申请人： Ricoh Company Ltd.
发明人： Shinshi, Akira , Yamaguchi, Yoshiki , Hasegawa, Kenichi , Yoshikawa, Masaaki , Yoshinaga, Hiroshi , Ishii, Kenji , Tokuda, Tetsuo , Fujimoto, Ippei , Ikebuchi, Yutaka , Tamaki, Shuntaroh , Shimokawa, Toshihiko , Iwaya, Naoki
IPC分类号： G03G15/20
CPC分类号： G03G15/2064 , G03G2215/2035
摘要： In a fixing device (20), a pressing member (31) is pressed against a nip formation member (26) via a fixing member (21) to form a nip (N) between the fixing member (21) and the pressing member (31) through which a recording medium bearing a toner image passes. The fixing member (21) and the pressing member (31) rotate and convey the recording medium bearing the toner image through the nip (N). The heat conduction member (22) faces an inner circumferential surface of the fixing member (21) to guide the fixing member (21) sliding over the heat conduction member (22) and to transmit heat to the fixing member (21). The heat conduction member (22) includes a plurality of convex portions (50; 51) provided on an outer circumferential surface of the heat conduction member (22) and contacting the inner circumferential surface of the fixing member (21).
摘要翻译：在定影装置（20）中，通过固定部件（21）将按压部件（31）按压在辊隙形成部件（26）上，在定影部件（21）与按压部件（26）之间形成夹持部（N）承载调色剂图像的记录介质通过其上。定影部件（21）和加压部件（31）通过辊隙（N）旋转并输送承载调色剂图像的记录介质。导热部件22面向固定部件21的内周面，以引导在导热部件22上滑动的固定部件21向固定部件21传递热量。导热部件22包括设置在导热部件22的外周面并与固定部件21的内周面接触的多个凸部50,51。

5. 发明公开

EP2367072A2 Fixing device and image forming apparatus incorporating same 审中-公开
标题翻译：固定装置和包含其的图像形成装置
公开(公告)号：EP2367072A2
公开(公告)日：2011-09-21
申请号：EP11157851.4
申请日：2011-03-11
申请人： Ricoh Company, Ltd.
发明人： Yoshikawa, Masaaki , Yamaguchi, Yoshiki , Shimokawa, Toshihiko , Ishii, Kenji , Iwaya, Naoki , Imada, Takahiro , Ikebuchi, Yutaka , Tokuda, Tetsuo , Hase, Takamasa , Yoshinaga, Hiroshi , Fujimoto, Ippei
IPC分类号： G03G15/20
CPC分类号： G03G15/2057 , G03G15/2039 , G03G2215/2035
摘要： A fixing device (20) includes a tubular belt holder (27), a rotatable flexible fuser belt (21), a contact member (26), a pressure member (31), and a heater (22). The tubular belt holder (27) extends in an axial direction thereof. The fuser belt (21) is looped into a generally cylindrical configuration around the belt holder. The tubular belt holder retains the fuser belt in shape as the belt rotates in a circumferential direction. The contact member (26) extends in the axial direction. The pressure member (31) extends in the axial direction. The pressure member (31) presses against the contact member through the fuser belt to form a fixing nip. The heater (22) is disposed to heat a predetermined circumferential portion (HZ) of the fuser belt. The belt holder includes a first circumferential section (S1) and a second circumferential section (2). The first circumferential section faces the heated portion. The second circumferential section faces upstream from the heated portion in the circumferential direction.
摘要翻译：定影装置20包括管状带保持器27，可旋转柔性定影带21，接触构件26，压力构件31和加热器22。管状带保持器（27）沿其轴向延伸。定影带（21）环绕带支架成大致圆柱形构造。当带沿圆周方向旋转时，管状带座将定影带保持在形状中。接触构件（26）沿轴向延伸。压力构件（31）沿轴向延伸。压力部件（31）通过定影带按压接触部件以形成定影夹持部。加热器（22）设置成加热定影带的预定周向部分（HZ）。带支架包括第一圆周部分（S1）和第二圆周部分（2）。第一圆周部分面向加热部分。第二圆周部分在圆周方向上面对加热部分的上游。

6. 发明公开

EP2453316A3 Fixing device and image forming apparatus incorporating same 有权
标题翻译：固定装置和包含其的图像形成装置
公开(公告)号：EP2453316A3
公开(公告)日：2017-07-12
申请号：EP11187509.2
申请日：2011-11-02
申请人： Ricoh Company, Ltd.
发明人： Yoshikawa, Masaaki , Iwaya, Naoki , Imada, Takahiro , Yoshinaga, Hiroshi , Seshita, Takuya , Gotoh, Hajime , Fujimoto, Ippei , Arai, Yuji , Takagi, Hiromasa , Yamaguchi, Yoshiki , Yoshiura, Arinobu , Shimokawa, Toshihiko , Tokuda, Tetsuo , Ikebuchi, Yutaka , Ishii, Kenji
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G2215/2035
摘要： A fixing device includes a tubular belt holder, a rotatable, flexible fuser belt, a heater, a fuser pad, and a pressure member. The belt holder extends in an axial direction. The fuser belt is looped around the belt holder to rotate in a circumferential direction of the belt holder. The heater is disposed adjacent to the belt holder to heat the belt holder. The fuser pad is accommodated in the belt holder inside the loop of the fuser belt. The pressure member is disposed opposite the belt holder with the fuser belt interposed between the fuser pad and the pressure member. The pressure member presses in a load direction against the fuser pad through the fuser belt to form a fixing nip therebetween. The belt holder includes, along a circumferential dimension thereof, an upstream, first circumferential portion, a downstream, second circumferential portion, and a midstream, third circumferential portion.
摘要翻译：定影装置包括管状带保持器，可旋转的柔性定影器带，加热器，定影器垫和压力构件。皮带架沿轴向延伸。定影带围绕带架缠绕以沿带架的圆周方向旋转。加热器设置在带座附近以加热带座。定影器垫被容纳在定影带环内的带座中。压力构件与带支架相对设置，定影带介于定影垫和压力构件之间。加压构件通过定影带沿加载方向压靠定影垫，以在其间形成定影辊隙。带支架沿其圆周尺寸包括上游，第一圆周部分，下游，第二圆周部分和中游，第三圆周部分。

7. 发明公开

EP2466392A3 Fixing device and image forming apparatus 有权
公开(公告)号：EP2466392A3
公开(公告)日：2017-01-11
申请号：EP11193525.0
申请日：2011-12-14
申请人： Ricoh Company, Ltd.
发明人： Yoshikawa, Masaaki , Imada, Takahiro , Iwaya, Naoki , Arai, Yuji , Yoshiura, Arinobu , Takagi, Hiromasa , Fujimoto, Ippei , Tokuda, Tetsuo , Ikebuchi, Yutaka , Seshita, Takuya , Yoshinaga, Hiroshi , Gotoh, Hajime , Yamaguchi, Yoshiki , Shimokawa, Toshihiko , Ishii, Kenji
IPC分类号： G03G15/20
摘要： A fixing device, including a fixing member; a pressure member; a nip forming member; a reinforcing member; a heating member; and a flange member including a cylinder inserted in an inner circumference at an edge of the fixing member in an axial direction thereof and a flange fixed on a frame of the fixing device, wherein the cylinder of the flange member includes a notch storing the nip forming member at a part on the circumference, has an arc-shaped outer circumferential cross-section at an area corresponding to an area where the fixing member is heated by the heating member, having a predetermined radius equivalent to a radius of the fixing member, and the arc has a center located at an upstream side in a recording medium feeding direction relative to a center line of the nip forming member in the recording medium feeding direction.

8. 发明授权

EP2309337B1 Fixing device and image forming apparatus employing the fixing device 有权
标题翻译：定影装置及具有该定影装置的图像形成装置
公开(公告)号：EP2309337B1
公开(公告)日：2014-11-05
申请号：EP10251568.1
申请日：2010-09-09
申请人： Ricoh Company, Ltd.
发明人： Tokuda, Tetsuo , Yoshikawa, Masaaki , Shinshi, Akira , Hasegawa, Kenichi , Yoshinaga, Hiroshi , Iwaya, Naoki , Yamaguchi, Yoshiki , Ikebuchi, Yutaka , Tamaki, Shuntaroh , Shimokawa, Toshihiko , Fujimoto, Ippei , Ishii, Kenji
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G2215/2035

9. 发明公开

EP2453316A2 Fixing device and image forming apparatus incorporating same 有权
标题翻译： Fixiervorrichtung und Bilderzeugungsvorrichtung damit
公开(公告)号：EP2453316A2
公开(公告)日：2012-05-16
申请号：EP11187509.2
申请日：2011-11-02
申请人： Ricoh Company, Ltd.
发明人： Yoshikawa, Masaaki , Iwaya, Naoki , Imada, Takahiro , Yoshinaga, Hiroshi , Seshita, Takuya , Gotoh, Hajime , Fujimoto, Ippei , Arai, Yuji , Takagi, Hiromasa , Yamaguchi, Yoshiki , Yoshiura, Arinobu , Shimokawa, Toshihiko , Tokuda, Tetsuo , Ikebuchi, Yutaka , Ishii, Kenji
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G2215/2035
摘要： A fixing device includes a tubular belt holder, a rotatable, flexible fuser belt, a heater, a fuser pad, and a pressure member. The belt holder extends in an axial direction. The fuser belt is looped around the belt holder to rotate in a circumferential direction of the belt holder. The heater is disposed adjacent to the belt holder to heat the belt holder. The fuser pad is accommodated in the belt holder inside the loop of the fuser belt. The pressure member is disposed opposite the belt holder with the fuser belt interposed between the fuser pad and the pressure member. The pressure member presses in a load direction against the fuser pad through the fuser belt to form a fixing nip therebetween. The belt holder includes, along a circumferential dimension thereof, an upstream, first circumferential portion, a downstream, second circumferential portion, and a midstream, third circumferential portion.
摘要翻译：定影装置包括管状带保持器，可旋转的柔性定影带，加热器，定影垫和压力构件。皮带保持架沿轴向方向延伸。定影带围绕带保持器环绕在带保持器的圆周方向上旋转。加热器邻近带保持器设置以加热带保持器。定影垫容纳在定影带环内的皮带保持架内。压力构件与带保持器相对设置，定影带插入在定影垫和压力构件之间。压力构件通过定影带在负载方向上压靠定影垫，以在它们之间形成定影辊隙。带保持器沿其周向尺寸包括上游，第一周向部分，下游，第二周向部分和中游第三圆周部分。

10. 发明公开

EP2345938A1 Fixing device and image forming apparatus incorporating same 有权
标题翻译：固定装置和包含其的图像形成装置
公开(公告)号：EP2345938A1
公开(公告)日：2011-07-20
申请号：EP10190671.7
申请日：2010-11-10
申请人： Ricoh Company, Ltd.
发明人： Yamaguchi, Yoshiki , Yoshikawa, Masaaki , Ishii, Kenji , Yoshinaga, Hiroshi , Iwaya, Naoki , Tokuda, Tetsuo , Ikebuchi, Yutaka , Imada, Takahiro , Hase, Takamasa , Shimokawa, Toshihiko , Hasegawa, Kenichi , Shinshi, Akira , Fujimoto, Ippei
IPC分类号： G03G15/20
CPC分类号： G03G15/2064 , G03G2215/2035
摘要： A fixing device (20) includes an endless belt (21), a fuser pad (30), a pressure member (31), a tubular belt holder (22), and a reinforcing member (23). The endless belt (21) is looped into a generally cylindrical configuration extending in an axial direction (X). The fuser pad (30) extends in the axial direction (X) inside the loop of endless belt (21). The pressure member (31) extends in the axial direction (X) with the belt (21) interposed between the fuser pad (30) and the pressure member (31). The pressure member (31) is pressed against the fuser pad (30) through the fuser belt (21) to form a fixing nip (N). The belt holder (22) extends in the axial direction (X) inside the loop of endless belt (21) to retain the belt (21) in shape along an outer circumference thereof. The belt holder (22) accommodates the fuser pad (30) in a longitudinal side slot (22a) defined on one side thereof. The reinforcing member (23) is disposed inside the tubular belt holder (22) to reinforce the belt holder (22) around the side slot (22a).
摘要翻译：定影装置（20）包括环形带（21），定影垫（30），压力构件（31），管状带保持器（22）和加强构件（23）。环形带（21）环绕成沿轴向方向（X）延伸的大致圆柱形构造。定影垫（30）在环形带（21）的环内沿轴向（X）延伸。压力构件31在带（21）介于定影垫（30）和压力构件（31）之间的情况下沿轴向方向（X）延伸。通过定影带（21）将压力构件（31）压靠在定影垫（30）上以形成定影夹持部（N）。带保持器22沿着环形带21的环内的轴向方向X延伸以沿着其外周保持带21的形状。带支架（22）将定影垫（30）容纳在限定在其一侧上的纵向侧槽（22a）中。加强部件23配置在筒状的带保持部22的内部，用于加强带侧保持部22的周围的槽22a。

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