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2. 发明公开

EP2778796A3 Fixing device and image forming apparatus incorporating same 审中-公开
标题翻译： Fixiervorrichtung und Bilderzeugungsvorrichtung damit
公开(公告)号：EP2778796A3
公开(公告)日：2017-01-04
申请号：EP14157498.8
申请日：2014-03-03
申请人： Ricoh Company, Ltd.
发明人： Suzuki, Akira , Seshita, Takuya , Imada, Takahiro , Gotoh, Hajime , Yamaji, Kensuke
IPC分类号： G03G15/20
CPC分类号： G03G15/2085 , G03G15/2025 , G03G15/2028 , G03G15/2035
摘要： A fixing device (80) includes an endless, rotary fixing member (81); a heat source to heat the fixing member (81); an opposed member (82) disposed opposite the fixing member (81) and to form a fixing nip (84) with the fixing member (81); and a biasing member (83) disposed opposite the opposed member (82), to press the fixing member (81) from a back side of the fixing member (81) against the opposed member (82) at the fixing nip (84); grip portions (G1, G2) at which the fixing member (81) and the opposed member (82) contact each other in areas through which the recording medium (S) does not pass, among the fixing nip (84) along a direction perpendicular to a conveyance direction of the recording medium (S); and a cleaning member (86, 87) to clean one of the grip portions (G1, G2) of the fixing member (81) and the opposed member (82).
摘要翻译：固定装置（80）包括环形旋转固定构件（81）; 用于加热所述固定构件（81）的热源; 相对的构件（82），与所述固定构件（81）相对设置并且与所述固定构件（81）形成定影压区（84）; 以及与所述相对构件相对设置的偏置构件，在所述定影辊隙（84）处将所述固定构件（81）从所述固定构件（81）的背面压靠在所述相对构件（82）上; 固定部件（81）和相对部件（82）之间的夹持部分（G1，G2）在定影辊隙（84）中沿着垂直于方向的方向彼此接触在记录介质（S）不通过的区域中到记录介质（S）的输送方向; 和清洁构件（86,87），以清洁固定构件（81）和相对构件（82）的夹持部分（G1，G2）之一。

3. 发明公开

EP2778796A2 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：EP2778796A2
公开(公告)日：2014-09-17
申请号：EP14157498.8
申请日：2014-03-03
申请人： Ricoh Company, Ltd.
发明人： Suzuki, Akira , Seshita, Takuya , Imada, Takahiro , Gotoh, Hajime , Yamaji, Kensuke
IPC分类号： G03G15/20
CPC分类号： G03G15/2085 , G03G15/2025 , G03G15/2028 , G03G15/2035
摘要： A fixing device (80) includes an endless, rotary fixing member (81); a heat source to heat the fixing member (81); an opposed member (82) disposed opposite the fixing member (81) and to form a fixing nip (84) with the fixing member (81); and a biasing member (83) disposed opposite the opposed member (82), to press the fixing member (81) from a back side of the fixing member (81) against the opposed member (82) at the fixing nip (84); grip portions (G1, G2) at which the fixing member (81) and the opposed member (82) contact each other in areas through which the recording medium (S) does not pass, among the fixing nip (84) along a direction perpendicular to a conveyance direction of the recording medium (S); and a cleaning member (86, 87) to clean one of the grip portions (G1, G2) of the fixing member (81) and the opposed member (82).
摘要翻译：定影装置（80）包括环形旋转固定构件（81）; 加热固定构件（81）的热源; 与所述固定部件相对配置并与所述固定部件形成固定夹持部的对置部件。（82）相对设置的偏置部件（83），用于在定影夹持部（84）处将定影部件（81）从定影部件（81）的后侧压靠在相对部件（82）上; 在所述定影夹持部（84）中沿着垂直于所述记录介质（S）的方向的垂直方向上，所述定影部件（81）和所述相对部件（82）在所述记录介质（S）不通过的区域中彼此接触的夹持部（G1，G2）到记录介质（S）的传送方向; 以及用于清洁固定构件（81）和相对构件（82）的一个把持部（G1，G2）的清洁构件（86,87）。

4. 发明公开

EP2610688A1 Fixing device with support and image forming apparatus incorporating same 有权
标题翻译： Fixtervorrichtung mit Halterung und Bilderzeugungsvorrichtung damit
公开(公告)号：EP2610688A1
公开(公告)日：2013-07-03
申请号：EP12198941.2
申请日：2012-12-21
申请人： Ricoh Company, Ltd.
发明人： Yoshinaga, Hiroshi , Satoh, Masahiko , Yoshikawa, Masaaki , Ishii, Kenji , Ogawa, Tadashi , Imada, Takahiro , Takagi, Hiromasa , Saito, Kazuya , Iwaya, Naoki , Shimokawa, Toshihiko , Yamaji, Kensuke , Kawata, Teppei , Hase, Takamasa , Yuasa, Shuutaroh , Seshita, Takuya , Uchitani, Takeshi , Yoshiura, Arinobu , Gotoh, Hajime , Suzuki, Akira
IPC分类号： G03G15/20
CPC分类号： G03G15/2067 , G03G15/2032 , G03G15/2053
摘要： A fixing device (20) includes a support (25) that includes a base (25a) contacting a nip formation assembly (24). An upstream projection (25b1) projects from the base (25a) in a pressurization direction of an opposed rotary body (22) at a position on the base (25a) corresponding to or upstream from an upstream edge (N1) of a fixing nip (N) formed between the opposed rotary body (22) and an endless belt (21) in a recording medium conveyance direction. A downstream projection (25b2) projects from the base (25a) in the pressurization direction of the opposed rotary body (22) at a position on the base (25a) corresponding to or downstream from a downstream edge (N2) of the fixing nip (N) in the recording medium conveyance direction. The downstream projection (25b2) is spaced apart from the upstream projection (25b1) in the recording medium conveyance direction.
摘要翻译：定影装置（20）包括支撑件（25），其包括接触压区形成组件（24）的基部（25a）。上游突起（25b1）在相对的旋转体（22）的加压方向上从基板（25a）的与定影辊隙的上游边缘（N1）对应或上游的位置突出， N）形成在相对的旋转体（22）和环形带（21）之间。下游突起（25b2）在相对的旋转体（22）的加压方向上从与定影辊隙的下游边缘（N2）对应或下游的基部（25a）上的位置从基部（25a）突出， N）。下游突起（25b2）在记录介质传送方向上与上游突起（25b1）间隔开。

5. 发明授权

EP2453315B1 Fixing device, image forming apparatus incorporating same, and method for fixing toner image on recording medium 有权
公开(公告)号：EP2453315B1
公开(公告)日：2020-12-02
申请号：EP11187006.9
申请日：2011-10-28
申请人： Ricoh Company, Ltd.
发明人： Saito, Kazuya , Ogawa, Tadashi , Uchitani, Takeshi , Ueno, Satoshi , Kawata, Teppei , Hase, Takamasa , Yuasa, Shuutaroh , Yamaji, Kensuke
IPC分类号： G03G15/20

7. 发明公开

EP2615501A2 Fixing device and image forming apparatus including the fixing device 有权
标题翻译： Fixierungsvorrichtung und Bilderstellungsvorrichtung mit der Fixierungsvorrichtung
公开(公告)号：EP2615501A2
公开(公告)日：2013-07-17
申请号：EP12197771.4
申请日：2012-12-18
申请人： Ricoh Company, Ltd.
发明人： Kawata, Teppei , Satoh, Masahiko , Ishii, Kenji , Yoshikawa, Masaaki , Yoshinaga, Hiroshi , Uchitani, Takeshi , Ogawa, Tadashi , Takagi, Hiromasa , Iwaya, Naoki , Seshita, Takuya , Imada, Takahiro , Gotoh, Hajime , Hase, Takamasa , Saito, Kazuya , Shimokawa, Toshihiko , Yuasa, Shuutaroh , Yoshiura, Arinobu , Yamaji, Kensuke , Suzuki, Akira
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G15/2017
摘要： A fixing device (20) for fixing an image on a recording medium (P) includes an endless fixing rotary member (21) which is formed into a loop and comes into contact with the image on the recording medium, an opposed rotary member (22) which is in contact with the fixing rotary member, a nip forming member (24) provided inside the loop of the fixing rotary member to be in contact with the opposed rotary member via the fixing rotary member to form a nip portion to which the recording medium is fed in a feeding direction, a support member (25) which supports the nip forming member, and a heating source (23) which heats the fixing rotary member. The nip forming member includes a downstream portion extending downstream in the feeding direction from a center of the nip portion and an upstream portion extending upstream in the feeding direction from the center and longer than the downstream portion.
摘要翻译：一种用于将图像定影在记录介质（P）上的定影装置（20）包括：环形固定旋转构件（21），其形成为环状并与记录介质上的图像接触;相对的旋转构件（22）），设置在所述定影旋转部件的所述环的内部的夹持形成部件（24），其经由所述固定旋转部件与所述相对的旋转部件接触，以形成所述记录介质沿进给方向进给，支撑构件（25），其支撑辊隙形成构件;以及加热源（23），其加热定影旋转构件。辊隙形成构件包括从夹持部的中心沿进给方向向下游延伸的下游部分，以及从中心延伸到进给方向上游并且比下游部分长的上游部分。

8. 发明公开

EP2804053A1 Fixing device and imge forming apparatus 审中-公开
标题翻译：固定装置和图像形成装置
公开(公告)号：EP2804053A1
公开(公告)日：2014-11-19
申请号：EP14167456.4
申请日：2014-05-08
申请人： Ricoh Company, Ltd.
发明人： Yoshikawa, Masaaki , Seki, Takayuki , Arai, Yuji , Yoshinaga, Hiroshi , Mimbu, Ryuuichi , Seshita, Takuya , Tamaki, Shuntaro , Yamamoto, Takeshi , Imada, Takahiro , Gotoh, Hajime , Saito, Kazuya , Ikebuchi, Yutaka , Shimokawa, Toshihiko , Yuasa, Shuutaroh , Yamaji, Kensuke , Suzuki, Akira
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G2215/2035
摘要： A fixing device (20) includes a fixing rotator (21) and a nip formation assembly (24) contacting the fixing rotator (21). An opposed rotator (22) presses against the nip formation assembly (24) via the fixing rotator (21) to form a fixing nip (N) between the fixing rotator (21) and the opposed rotator (22). A support (25), disposed opposite an inner circumferential surface of the fixing rotator (21), supports the nip formation assembly (24). A heater (23), disposed opposite the inner circumferential surface of the fixing rotator (21), heats the fixing rotator (21). A reflector (27), disposed opposite an outer circumferential surface of the fixing rotator (21), reflects heat radiated from the fixing rotator (21) onto the fixing rotator (21). The reflector (27) spans a circumferential span of the fixing rotator (21) where the fixing rotator (21) is spaced apart from the support (25) with a decreased interval therebetween.
摘要翻译：定影装置（20）包括定影旋转体（21）和与定影旋转体（21）接触的辊隙形成组件（24）。相对转动体22通过定影旋转体21压靠在压区形成组件24上以在定影旋转体21和相对旋转体22之间形成定影压区N. 与定影旋转体（21）的内周面相对配置的支撑体（25）支撑辊隙形成组装体（24）。与定影旋转体（21）的内周面相对配置的加热器（23）加热定影旋转体（21）。与定影旋转体21的外圆周表面相对设置的反射体27将从定影旋转体21辐射的热量反射到定影旋转体21上。反射器（27）跨越定影旋转体（21）的周向跨度，其中定影旋转体（21）与支撑体（25）间隔开减小间隔。

9. 发明公开

EP2615501A3 Fixing device and image forming apparatus including the fixing device 有权
标题翻译：固定装置和具有该定影装置的图像形成装置
公开(公告)号：EP2615501A3
公开(公告)日：2013-12-11
申请号：EP12197771.4
申请日：2012-12-18
申请人： Ricoh Company, Ltd.
发明人： Kawata, Teppei , Satoh, Masahiko , Ishii, Kenji , Yoshikawa, Masaaki , Yoshinaga, Hiroshi , Uchitani, Takeshi , Ogawa, Tadashi , Takagi, Hiromasa , Iwaya, Naoki , Seshita, Takuya , Imada, Takahiro , Gotoh, Hajime , Hase, Takamasa , Saito, Kazuya , Shimokawa, Toshihiko , Yuasa, Shuutaroh , Yoshiura, Arinobu , Yamaji, Kensuke , Suzuki, Akira
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G15/2017
摘要： A fixing device (20) for fixing an image on a recording medium (P) includes an endless fixing rotary member (21) which is formed into a loop and comes into contact with the image on the recording medium, an opposed rotary member (22) which is in contact with the fixing rotary member, a nip forming member (24) provided inside the loop of the fixing rotary member to be in contact with the opposed rotary member via the fixing rotary member to form a nip portion to which the recording medium is fed in a feeding direction, a support member (25) which supports the nip forming member, and a heating source (23) which heats the fixing rotary member. The nip forming member includes a downstream portion extending downstream in the feeding direction from a center of the nip portion and an upstream portion extending upstream in the feeding direction from the center and longer than the downstream portion.

10. 发明公开

EP2610686A1 Fixing device with endless belt and image forming apparatus incorporating same 有权
标题翻译： Fixiervorrichtung mit Endlosschleife und Bilderzeugungsvorrichtung damit
公开(公告)号：EP2610686A1
公开(公告)日：2013-07-03
申请号：EP12193744.5
申请日：2012-11-22
申请人： Ricoh Company, Ltd.
发明人： Gotoh, Hajime , Satoh, Masahiko , Yoshikawa, Masaaki , Ishii, Kenji , Ogawa, Tadashi , Imada, Takahiro , Takagi, Hiromasa , Saito, Kazuya , Iwaya, Naoki , Shimokawa, Toshihiko , Yamaji, Kensuke , Kawata, Teppei , Hase, Takamasa , Yuasa, Shuutaroh , Seshita, Takuya , Uchitani, Takeshi , Yoshiura, Arinobu , Suzuki, Akira , Yoshinaga, Hiroshi
IPC分类号： G03G15/20
CPC分类号： G03G15/2064 , G03G15/2053 , G03G2215/2035
摘要： The fixing device (20) includes a nip formation assembly (24) that includes a base pad (241) defining a fixing nip (N) formed between an endless belt (21) and an opposed rotary body (22). The base pad (241) includes a pressure portion (50), an extension portion (51), and a curved portion (52). The pressure portion (50) presses against the opposed rotary body (22) via the endless belt (21). The extension portion (51) is contiguous to and disposed upstream from the pressure portion (50) in a recording medium conveyance direction. The extension portion (51) does not press against the opposed rotary body (22) via the endless belt (21). The curved portion (52) is disposed upstream from the extension portion (51) in the recording medium conveyance direction and smoothly blends into the extension portion (51). The curved portion (52) does not press against the opposed rotary body (22).
摘要翻译：定影装置（20）包括一个压区形成组件（24），该压区形成组件包括形成在环形带（21）和相对旋转体（22）之间形成的定影辊隙（N）的基座（241）。基座（241）包括压力部分（50），延伸部分（51）和弯曲部分（52）。压力部分（50）通过环形带（21）压靠在相对的旋转体（22）上。延伸部分51在记录介质输送方向上与压力部分50相邻并设置在上游。延伸部（51）不经由环形带（21）压靠在相对的旋转体（22）上。弯曲部分（52）在记录介质传送方向上设置在延伸部分（51）的上游，并且平滑地融合到延伸部分（51）中。弯曲部分（52）不压靠在相对的旋转体（22）上。

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