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1. 发明专利

JP2013160985A Fixation apparatus and image formation 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：JP2013160985A
公开(公告)日：2013-08-19
申请号：JP2012023949
申请日：2012-02-07
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： IKEFUCHI YUTAKA
IPC分类号： G03G15/20
摘要： PROBLEM TO BE SOLVED: To improve fixability with a fixation temperature from a paper passing start stabilized.SOLUTION: A fixation apparatus includes: a fixation belt 21 heated by a halogen heater 25; a pressure roller 31 pressure-contacting with the fixation belt 21 and forming a nip part with respect to the fixation belt 21; a temperature sensor 40 for detecting the temperature of the fixation belt 21 and/or the pressure roller 31; heating control means for controlling a thermal dose from the halogen heater 25 on the basis of the temperature detected by the temperature sensor 40. The heating control means performs suppression control to the conduction rate of the halogen heater 25 according to the temperature detected by the temperature sensor 40 before reaching a fixable temperature of the fixation apparatus 20.
摘要翻译：要解决的问题：通过稳定的通过开始的纸张的定影温度来提高定影性。解决方案：固定装置包括：由卤素加热器25加热的定影带21; 与定影带21压力接触并且相对于定影带21形成咬合部的压力辊31; 用于检测定影带21和/或加压辊31的温度的温度传感器40; 加热控制装置，用于根据由温度传感器40检测到的温度控制来自卤素加热器25的热剂量。加热控制装置根据由温度检测的温度对卤素加热器25的导通率进行抑制控制传感器40在达到固定装置20的可固定温度之前。

2. 发明专利

JP2012145703A Fixing device and image forming device 有权
标题翻译：固定装置和图像形成装置
公开(公告)号：JP2012145703A
公开(公告)日：2012-08-02
申请号：JP2011003205
申请日：2011-01-11
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SHIMOKAWA TOSHIHIKO , YOSHIKAWA MASAAKI , ISHII KENJI , YOSHINAGA HIROSHI , ARAI YUJI , TAKAGI HIROTADA , IWATANI NAOKI , TOKUDA TETSUO , YAMAGUCHI YOSHINORI , IKEFUCHI YUTAKA , SESHIMO TAKUYA , FUJIMOTO IPPEI , YOSHIURA ARINOBU , IMADA TAKAHIRO , GOTO SO
IPC分类号： G03G15/20
摘要： PROBLEM TO BE SOLVED: To provide a fixing device and an image forming device capable of preventing delay of warm-up time for heating a fixing belt to a predetermined temperature and preventing the occurrence of a fixing failure due to the instability of the temperature of the fixing belt while maintaining the carrying properties of the fixing belt.SOLUTION: A pressure receiving member 22 for forming a fixing nip part N by receiving a pressure from a pressure roller 31 through a fixing belt 21 is disposed in an internal space surrounded by the inner peripheral surface of the fixing belt 21. The pressure receiving member 22 has a nip forming part 22a facing the fixing nip part N through the fixing belt 21 so as to form the fixing nip part N, a slide-contact part 22b in sliding contact with at least one position other than the fixing nip part N in the inner peripheral surface of the fixing belt 21 and a connection part for connecting the nip forming part 22a and the slide-contact part 22b so as to stretch the fixing belt 21.
摘要翻译：解决的问题：提供一种定影装置和图像形成装置，其能够防止将定影带加热到预定温度的预热时间的延迟，并且防止由于不稳定性导致的定影故障的发生同时保持定影带的承载性能。解决方案：用于通过从加压辊31通过定影带21接受压力来形成定影夹持部分N的压力接收部件22设置在由定影带21的内周表面包围的内部空间中。压力接收构件22具有通过定影带21面向定影夹持部N的辊隙形成部22a，以形成定影夹持部N，滑动接触部22b与除了定影夹持部之外的至少一个位置滑动接触定影带21的内周面中的部分N和用于连接夹持形成部分22a和滑动接触部分22b以便拉伸定影带21的连接部分。（C）2012年，JPO和INPIT

3. 发明专利

JP2012103608A 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：JP2012103608A
公开(公告)日：2012-05-31
申请号：JP2010253983
申请日：2010-11-12
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YOSHIKAWA MASAAKI , ARAI YUJI , TAKAGI HIROTADA , YAMAGUCHI YOSHINORI , YOSHIURA ARINOBU , SHIMOKAWA TOSHIHIKO , TOKUDA TETSUO , IKEFUCHI YUTAKA , ISHII KENJI , IWATANI NAOKI , IMADA TAKAHIRO , YOSHINAGA HIROSHI , SESHIMO TAKUYA , GOTO SO , FUJIMOTO IPPEI
IPC分类号： G03G15/20
摘要： PROBLEM TO BE SOLVED: To provide a fixing device and an image forming apparatus able to prevent overheat of a support member, resulting from float of a fixing belt.SOLUTION: A fixing device 20 includes: a rotatable, flexible endless fixing belt 21; a nip forming member 26 for forming a nip part 27 sandwiching a recording medium P; and a tubular support member 60 rotatably supporting the fixing belt 21, and having a heating area 63 and a separating area 64. In the fixing device 20, the heating area 63 has an arcuate shape substantially equal in radius to that of the fixing belt 21, the center of the arc of the heating area 63 is situated upstream of the central line of the nip forming member 26 in the direction of recording medium conveyance. The separating area 64 has an arcuate shape and is situated downstream of the center of the arc of the heating area 63 in the direction of recording medium conveyance and is situated on the nip part 27 side. The maximum outside diameter between the heating area 63 and the separating area 64 corresponds to the maximum outside diameter of the support member 60, and is greater than the inside diameter of the fixing belt 21 together with.
摘要翻译：要解决的问题：提供一种能够防止由于定影带的浮起而导致的支撑构件过热的定影装置和图像形成装置。解决方案：定影装置20包括：可旋转的柔性环形定影带21; 夹持形成构件26，用于形成夹持记录介质P的夹持部27; 以及可旋转地支撑定影带21并具有加热区域63和分离区域64的管状支撑构件60.在定影装置20中，加热区域63具有与定影带21的半径大致相等的圆弧形状加热区域63的圆弧的中心位于压区形成构件26的中心线的上游沿记录介质输送方向。分离区域64具有弓形形状，并且位于加热区域63的圆弧的中心的下游，在记录介质输送方向上，并且位于辊隙部27侧。加热区域63和分离区域64之间的最大外径对应于支撑构件60的最大外径，并且大于定影带21的内径。版权所有（C）2012，JPO＆INPIT

4. 发明专利

JP2012103467A Fixation device and image formation device 审中-公开
标题翻译：固定装置和图像形成装置
公开(公告)号：JP2012103467A
公开(公告)日：2012-05-31
申请号：JP2010251697
申请日：2010-11-10
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： IMADA TAKAHIRO , ISHII KENJI , IWATANI NAOKI , SESHIMO TAKUYA , YOSHINAGA HIROSHI , GOTO SO , TAKAGI HIROTADA , YAMAGUCHI YOSHINORI , SHIMOKAWA TOSHIHIKO , TOKUDA TETSUO , IKEFUCHI YUTAKA , ARAI YUJI , YOSHIURA ARINOBU , YOSHIKAWA MASAAKI , FUJIMOTO IPPEI
IPC分类号： G03G15/20 , F16C13/00
摘要： PROBLEM TO BE SOLVED: To provide a fixation device and an image formation device capable of inhibiting a slip phenomenon of a driven member when a sheet passes, so that excellent image quality can be obtained without increasing a component number.SOLUTION: A fixation device includes: a rotatable fixation member; a pressure roller 31 forming a nip part that presses the fixation member so as to cause unfixed toner on a passing recording medium to be fixed onto the recording medium; and a heater configured to heat the fixation member. The pressure roller 31 is a roller member including a cylindrical core bar 32 and an elastic layer 33 provided on an outer circumference of the core bar 32. An outer diameter RO1 of the core bar 32 at least at part of a non-sheet passing portion in an axial direction is larger than an outer diameter RO2 thereof at a sheet passing portion, and thickness t1 of the elastic layer 33 at least at part of the non-sheet passing portion in the axial direction is thinner than thickness t2 thereof at the sheet passing portion.
摘要翻译：要解决的问题：提供一种当片材通过时能够抑制从动构件的滑动现象的定影装置和图像形成装置，从而可以在不增加部件号的情况下获得优异的图像质量。解决方案：固定装置包括：可旋转固定构件; 形成夹持部的压力辊31，该夹持部按压固定构件，使得经过的记录介质上的未定影的调色剂固定在记录介质上; 以及构造成加热固定构件的加热器。加压辊31是包括圆柱形芯棒32和设置在芯棒32的外圆周上的弹性层33的辊构件。芯棒32的外径RO1至少部分为非片材通过部分在片材通过部分的轴向方向上的外径RO2大于非片材通过部分的至少一部分在轴向方向上的厚度t1比片材通过部分的厚度t2薄通过部分。版权所有（C）2012，JPO＆INPIT

5. 发明专利

JP2012103402A 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：JP2012103402A
公开(公告)日：2012-05-31
申请号：JP2010250725
申请日：2010-11-09
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SHIMOKAWA TOSHIHIKO , YOSHIKAWA MASAAKI , ARAI YUJI , TOKUDA TETSUO , YAMAGUCHI YOSHINORI , IKEFUCHI YUTAKA , YOSHIURA ARINOBU , ISHII KENJI , IWATANI NAOKI , TAKAGI HIROTADA , SESHIMO TAKUYA , IMADA TAKAHIRO , GOTO SO , YOSHINAGA HIROSHI , FUJIMOTO IPPEI
IPC分类号： G03G15/20
摘要： PROBLEM TO BE SOLVED: To provide a fixing device and an image forming apparatus that prevent the occurrence of a belt slip to form high-quality images.SOLUTION: A fixing device comprises: a flexible, endless fixing belt 21 that runs in a predetermined direction to heat and melt a toner image; a pressuring roller 31 that comes into pressure contact with the fixing belt 21 to form a nip part; and a nip forming member 23 that is disposed at an inner peripheral side of the fixing belt 21 and comes into contact with the pressuring roller 31 via the fixing belt 21 to form a nip part. The nip forming member 23 includes a pressuring member contact part 24a an edge portion of which in a width direction other than a recording medium passage area is in substantially a similar shape to the pressuring roller 31.
摘要翻译：要解决的问题：提供一种防止皮带打滑发生形成高质量图像的定影装置和图像形成装置。解决方案：固定装置包括：柔性的，环形的定影带21，其沿预定方向延伸以加热和熔化调色剂图像; 与定影带21压力接触以形成压合部的加压辊31; 以及辊隙形成构件23，其设置在定影带21的内周侧，并且经由定影带21与加压辊31接触以形成辊隙部。辊隙形成构件23包括加压构件接触部分24a，其加压构件接触部分24a，其边缘部分在除了记录介质通道区域以外的宽度方向上与加压辊31基本相似。（C）2012年， JPO＆INPIT

6. 发明专利

JP2011197183A Fixing device and image 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：JP2011197183A
公开(公告)日：2011-10-06
申请号：JP2010061897
申请日：2010-03-18
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： ISHII KENJI , YOSHIKAWA MASAAKI , YAMAGUCHI YOSHINORI , SHIMOKAWA TOSHIHIKO , IWATANI NAOKI , IMADA TAKAHIRO , IKEFUCHI YUTAKA , TOKUDA TETSUO , HASE TAKAMASA , SESHIMO TAKUYA , YOSHINAGA HIROSHI , FUJIMOTO IPPEI
IPC分类号： G03G15/20 , H05B3/00 , H05B3/12
CPC分类号： G03G15/2039 , G03G2215/2035 , G03G2215/2041
摘要： PROBLEM TO BE SOLVED: To provide a fixing device and image forming apparatus for stably butting a planar heating element on a fixing member at a low pressure and uniformly heating the fixing member while it is rotated at a low torque.SOLUTION: The fixing device includes a fixing sleeve 21, a pressure roller 31, an abutting member 26 that is arranged on the inner peripheral side of the fixing sleeve 21 and abuts on the pressure roller 31 via the fixing sleeve 21 to form a nip section, and a planar heating element 22 as an elastic sheet that is arranged on the inner peripheral side of the fixing sleeve 21, comes into contact with the fixing sleeve 21, and heats it. The main surface of the planar heating element 22 is in contact with the inner peripheral surface of the fixing sleeve 21 at a surface pressure applied by bending elastic force of the planar heating element 22.
摘要翻译：要解决的问题：提供一种用于在低压下将平面加热元件稳定地对准定影构件的定影装置和图像形成装置，并且在以低扭矩旋转时均匀地加热固定构件。解决方案：定影装置包括定影套筒21，加压辊31，配置在定影套筒21的内周侧的抵接部件26，经由定影套筒21抵接在加压辊31上，形成夹持部，平面加热元件如图22所示，作为布置在定影套筒21的内周侧上的弹性片，与定影套筒21接触并加热。平面加热元件22的主表面在由平面加热元件22的弯曲弹力施加的表面压力下与定影套筒21的内周面接触。

7. 发明专利

JP2011191621A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2011191621A
公开(公告)日：2011-09-29
申请号：JP2010059115
申请日：2010-03-16
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YAMAGUCHI YOSHINORI , SHINSHI AKIRA , HASEGAWA KENICHI , YOSHINAGA HIROSHI , IWATANI NAOKI , FUJIMOTO IPPEI , IKEFUCHI YUTAKA , TAMAKI SHUNTARO , SHIMOKAWA TOSHIHIKO
IPC分类号： G03G15/20
CPC分类号： G03G21/1685 , G03G15/2039 , G03G2221/1639
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus, in which the wear degradation of a fixing member or a temperature detector is hardly caused, the cost for a fixing device is relatively low, and a surface temperature of the fixing member is highly accurately detected by the temperature detector without being influenced by an air flow in the image forming apparatus body. SOLUTION: In the fixing device 20, a fixing exterior cover 48, which covers a fixing member 21 and a fixing frame 43 and has an opening 48a formed so as to expose a part of the surface of the fixing member 21 to the outside of the fixing device 20, is installed. The image forming apparatus body 1 includes: a contactless temperature detector 50 detecting the surface temperature of the fixing member 21 while the fixing device 20 is mounted; and a holding member 51 holding the temperature detector 50 so as to allow the temperature detector 50 to enter the inside of the fixing exterior cover 48 through the opening 48a by interlocking with the mounting operation of the fixing device 20. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种图像形成装置，其中几乎不引起固定构件或温度检测器的磨损劣化，定影装置的成本相对较低，并且固定构件的表面温度被温度检测器高度精确地检测，而不受图像形成装置主体中的空气流的影响。解决方案：在定影装置20中，固定外壳48，其覆盖固定构件21和固定框架43，并且具有形成为将固定构件21的表面的一部分露出的开口48a 安装在固定装置20的外部。图像形成装置主体1包括：非接触式温度检测器50，其在固定装置20安装时检测固定构件21的表面温度; 以及保持构件51，其保持温度检测器50，以便通过与定影装置20的安装操作联动而使温度检测器50通过开口48a进入固定外盖48的内部。 C）2011，JPO＆INPIT

8. 发明专利

JP2011191348A 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：JP2011191348A
公开(公告)日：2011-09-29
申请号：JP2010055313
申请日：2010-03-12
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SHINSHI AKIRA , YOSHIKAWA MASAAKI , YOSHINAGA HIROSHI , HASEGAWA KENICHI , ISHII KENJI , IWATANI NAOKI , IKEFUCHI YUTAKA , TOKUDA TETSUO , FUJIMOTO IPPEI , YAMAGUCHI YOSHINORI , IMADA TAKAHIRO , HASE TAKAMASA , SHIMOKAWA TOSHIHIKO
IPC分类号： G03G15/20
CPC分类号： G03G15/2064 , G03G2215/2035
摘要： PROBLEM TO BE SOLVED: To provide a fixing device and an image forming apparatus, having a short warm-up time or first-print time, not causing a fixing failure, such as uneven fixation on a fixed image, and preventing such failures that a lubricant interposed between a fixing belt and a metal member runs short and the lubricant is deposited to a heater disposed inside the metal member, even when a plurality of through-holes are bored in the metal member to achieve lower heat capacity of the metal member.
SOLUTION: The fixing device includes: a fixation member 26 that comes in pressure-contact with a pressure rotating body 31 via the fixing belt 21 to form a nip portion; the pipe-like metal member 22 that is fixedly arranged to be opposed to the inner peripheral surface of the fixing belt 21 and heated by the heater 25. In the metal member 22, the plurality of through-holes 22b are formed in the opposed surface opposite to the heater 25, and also, the outer peripheral surface is covered with a tubular material 24 formed of a fluorine-containing polymer material.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种具有短的预热时间或第一次打印时间的定影装置和图像形成装置，不会导致定影失败，例如固定图像上的固定不均匀，并且防止插入在定影带和金属构件之间的润滑剂的故障，即使在多个通孔在金属构件中钻孔以达到较低的热容量的情况下，润滑剂也沉积到设置在金属构件内部的加热器上金属构件。解决方案：定影装置包括：固定构件26，其经由定影带21与压力旋转体31压力接触以形成压合部; 该管状金属构件22固定地设置成与定影带21的内周面相对并被加热器25加热。在金属构件22中，多个通孔22b形成在相对表面与加热器25相对，并且外周表面被由含氟聚合物材料形成的管状材料24覆盖。版权所有（C）2011，JPO＆INPIT

9. 发明专利

JP2011186275A 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：JP2011186275A
公开(公告)日：2011-09-22
申请号：JP2010052768
申请日：2010-03-10
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： IKEFUCHI YUTAKA , YOSHIKAWA MASAAKI , ISHII KENJI , YOSHINAGA HIROSHI , IWATANI NAOKI , TOKUDA TETSUO , YAMAGUCHI YOSHINORI , FUJIMOTO IPPEI , SESHIMO TAKUYA , IMADA TAKAHIRO , HASE TAKAMASA , SHIMOKAWA TOSHIHIKO
IPC分类号： G03G15/20
CPC分类号： G03G15/2039 , G03G2215/2025
摘要： PROBLEM TO BE SOLVED: To start a fixing device without causing abnormal torque. SOLUTION: The fixing device includes: a fixing sleeve 21, which is a rotating endless belt whose internal peripheral surface is coated with a lubricant; a pressure roller 31 disposed on the outer circumferential side of the fixing sleeve 21 so as to be able to press the fixing sleeve 21; a contact member 26 disposed on the internal peripheral side of the fixing sleeve 21 and forming a nip portion by abutting on the pressure roller 31 via a fixing member by its being pressed by the pressure member 31; and a heating means (planar heating element) 22 disposed on the internal peripheral side of the fixing sleeve 21 and used for heating the fixing sleeve 21. On starting, the fixing sleeve 21 is rotated one or less time by the drive rotation of the pressure roller 31 to shift the area heated by the heating means 22 of the fixing sleeve 21 to the location of the nip portion. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：启动定影装置而不引起异常扭矩。解决方案：定影装置包括：定影套筒21，其是内周表面涂有润滑剂的旋转环形带; 设置在定影套筒21的外周侧上以能够按压定影套筒21的加压辊31; 接触构件26，其设置在定影套筒21的内周侧，并且通过被压力构件31按压而通过固定构件抵靠压力辊31而形成压合部; 以及设置在定影套筒21的内周侧并用于加热定影套筒21的加热装置（平面加热元件）22。在起动时，通过压力的驱动旋转使定影套筒21旋转一个或更少的时间辊31将由定影套筒21的加热装置22加热的区域移动到辊隙部分的位置。版权所有（C）2011，JPO＆INPIT

10. 发明专利

JP2011169997A Fixing device and image 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：JP2011169997A
公开(公告)日：2011-09-01
申请号：JP2010031986
申请日：2010-02-17
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： IKEFUCHI YUTAKA , YOSHINAGA HIROSHI , SHIMOKAWA TOSHIHIKO , YOSHIKAWA MASAAKI , YAMAGUCHI YOSHINORI , IWATANI NAOKI , TOKUDA TETSUO , ISHII KENJI , FUJIMOTO IPPEI , TAMAKI SHUNTARO , SHINSHI AKIRA , IMADA TAKAHIRO , HASE TAKAMASA , HASEGAWA KENICHI
IPC分类号： G03G15/20
CPC分类号： G03G15/2064 , G03G2215/2035
摘要： PROBLEM TO BE SOLVED: To provide a fixing device and an image forming apparatus, in which a warm-up time and a first printing time are shortened, and fixation failure or the like is prevented even when higher-speed operation of the device is achieved, and work efficiency of assembling a fixing belt with a metal member is enhanced.
SOLUTION: The fixing device includes: a fixed member which comes into pressure-contact with a pressurized rotating body via the fixing belt 21 to form a nip portion; and the pipe-like metal member 22 fixed so as to face the inner peripheral surface of the fixing belt 21 in a position other than the nip portion to heat the fixing belt 21. The metal member 22 includes a protruding portion 22b protruding outward in a width direction from the width end portion thereof.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种定影装置和图像形成装置，其中预热时间和第一打印时间缩短，并且即使在高速操作时也防止定影失败等实现装置，并且提高了与金属构件组装定影带的工作效率。解决方案：固定装置包括：固定部件，其经由定影带21与加压旋转体进行压力接触以形成压合部; 并且管状金属构件22在除了夹持部分之外的位置处被固定成面对定影带21的内周面，以加热定影带21.金属构件22包括突出部分22b，突出部分22b向外突出宽度方向。版权所有（C）2011，JPO＆INPIT

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