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1. 发明专利

JP2014106520A Fixing device and image forming apparatus including the 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：JP2014106520A
公开(公告)日：2014-06-09
申请号：JP2012262077
申请日：2012-11-30
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： IMADA TAKAHIRO , SATO MASAHIKO , YOSHIKAWA MASAAKI , TAKAGI HIROTADA , IWATANI NAOKI , GOTO SO , SUZUKI AKIRA , SESHIMO TAKUYA , YOSHINAGA HIROSHI , ISHII KENJI , OGAWA SADAFUMI , KAWADA TEPPEI , YOSHIURA ARINOBU , SHIMOKAWA TOSHIHIKO , YAMAJI KENSUKE , UCHITANI TAKESHI , HASE TAKAMASA , YUASA SHUTARO
IPC分类号： G03G15/20
摘要： PROBLEM TO BE SOLVED: To provide a fixing device which has a structure including a holding member holding a fixing belt at both ends and is capable of preventing the occurrence of deformation and damage of the fixing belt due to a separation member and to provide an image forming apparatus including the fixing device.SOLUTION: A fixing device 10 includes a fixing belt 21, a pressure roller 22, a heater 23, a reflection member 24, a nip forming member 25 facing the pressure roller 22 on the inner peripheral side of the fixing belt 21, to form a nip part N, a support member 26, a holding member 28 holding the width direction end of the fixing belt 21, and a separation member 27 separating a recording paper S from the fixing belt 21. The holding member 28 includes a first projection part projected toward the width direction center from a base end and is configured so that a part of the top end of the first projection part is further projected toward the width direction center and configured to include a second projection part facing the separation member 27.
摘要翻译：要解决的问题：提供一种固定装置，其具有包括在两端保持定影带的保持构件的结构，并且能够防止由于分离构件而引起的定影带的变形和损坏，并且提供图像包括定影装置的成型装置。解决方案：定影装置10包括定影带21，加压辊22，加热器23，反射构件24，与压力辊22的内周侧面对的辊隙形成构件25 定影带21，以形成夹持部分N，支撑部件26，保持定影带21的宽度方向端的保持部件28以及将记录纸S与定影带21分开的分离部件27.保持部件 28包括从基端朝向宽度方向中心突出的第一突出部，并且被构造成使得第一突出部的顶端的一部分进一步向宽度方向中心突出，并且配置以包括面向分离构件27的第二突出部分。

2. 发明专利

JP2013178488A Image formation apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2013178488A
公开(公告)日：2013-09-09
申请号：JP2012282400
申请日：2012-12-26
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： HASE TAKEMASA , SATO MASAHIKO , NAMEKATA SHINICHI , ISHII KENJI , UCHITANI TAKESHI , OGAWA SADAFUMI , KAWATA TEPPEI , YOSHIURA ARINOBU , SAITO KAZUYA , SHIMOKAWA TOSHIHIKO , YUASA SHUTARO , YAMAJI KENSUKE , YOSHIKAWA MASAAKI , YOSHINAGA HIROSHI , TAKAGI HIROTADA , IWATANI NAOTAKE , SESHIMO TAKUYA , IMADA TAKAHIRO , GOTO SO , SUZUKI AKIRA
IPC分类号： G03G15/20 , B65H5/02 , G03G21/00
CPC分类号： G03G15/2085 , G03G15/2039 , G03G15/205 , G03G15/2078 , G03G15/55
摘要： PROBLEM TO BE SOLVED: To provide an image formation apparatus that enables further energy saving.SOLUTION: An image formation apparatus includes a fixation device 20 having: a rotatable endless fixation belt 21; a nip formation member 24 arranged inside the fixation belt 21; a pressure roller 22 for forming a nip part between the fixation belt 21 by making contact with the nip formation member 24 through the fixation belt 21; a heater 23 arranged inside the fixation belt 21 and heating the fixation belt 21; and a temperature sensor 27 for detecting the temperature of the fixation belt 21. At performing an image formation job, after the last recording medium has passed through the fixation device 20, rotation drive of the fixation belt 21 is controlled to stop before rotation drive of the discharge roller pair 13.
摘要翻译：要解决的问题：提供一种能够进一步节能的图像形成装置。解决方案：图像形成装置包括：固定装置20，具有：可旋转环形固定带21; 布置在定影带21内的辊隙形成构件24; 用于通过与定影带21与辊隙形成构件24接触而在定影带21之间形成咬合部的加压辊22; 设置在定影带21内部并加热定影带21的加热器23; 以及用于检测定影带21的温度的温度传感器27.在执行图像形成作业时，在最后的记录介质通过定影装置20之后，控制定影带21的旋转驱动以在旋转驱动之前停止排出辊对13。

3. 发明专利

JP2013178461A Fixation device and image formation apparatus 有权
标题翻译：固定装置和图像形成装置
公开(公告)号：JP2013178461A
公开(公告)日：2013-09-09
申请号：JP2012216290
申请日：2012-09-28
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YOSHINAGA HIROSHI , SATO MASAHIKO , YOSHIKAWA MASAAKI , ISHII KENJI , OGAWA SADAFUMI , TAKAGI HIROTADA , IWATANI NAOKI , SESHIMO TAKUYA , IMADA TAKAHIRO , GOTO SO , SUZUKI AKIRA , KAWADA TEPPEI , SHIMOKAWA TOSHIHIKO , YOSHIURA ARINOBU , HASE TAKAMASA , UCHITANI TAKESHI , YUASA SHUTARO , YAMAJI KENSUKE
IPC分类号： G03G15/20
CPC分类号： G03G15/2064 , G03G15/2053 , G03G2215/2035
摘要： PROBLEM TO BE SOLVED: To provide a fixation device capable of improving strength of a supporting member for supporting a nip formation member so as to prevent bending of the nip formation member.SOLUTION: A fixation device 20 includes: a rotatable endless fixation belt 21; a nip formation member 24 arranged inside the fixation belt 21; a counter rotary body 22 making contact with the nip formation member 24 through the fixation belt 21 to form a nip part N between the fixation belt 21 and the counter rotary body 22; a heat source 23 for directly heating the fixation belt 21 at a location other than the nip part N; and a supporting member 25 for supporting the nip formation member 24. In the fixation device 20, a recording medium P carrying an unfixed image is conveyed to the nip part N between the rotating fixation belt 21 and the counter rotary body 22 to fix the unfixed image to the recording medium P. The supporting member 25 has a rising portion 25b extending in a contact direction of the counter rotary body 22 to the fixation belt 21, with a tip thereof coming in a vicinity of an inner periphery of the fixation belt, regulating section modulus to be a specified value (200 mm3 or larger).
摘要翻译：要解决的问题：提供一种能够提高用于支撑辊隙形成构件的支撑构件的强度以便防止辊隙形成构件的弯曲的固定装置。解决方案：固定装置20包括：可旋转的环形定影带21; 布置在定影带21内的辊隙形成构件24; 反转旋转体22通过定影带21与辊隙形成构件24接触，以在定影带21和反转体22之间形成咬合部分N; 用于在夹持部分N以外的位置直接加热定影带21的热源23; 以及用于支撑辊隙形成构件24的支撑构件25.在固定装置20中，携带未定影图像的记录介质P被传送到旋转定影带21和反转体22之间的夹持部N，以将未固定图像到记录介质P.支撑构件25具有在相对旋转体22的接触方向上延伸到定影带21的上升部25b，其顶端位于定影带的内周附近，调节截面模数为规定值（200mm 3以上）。

4. 发明专利

JP2013174629A 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：JP2013174629A
公开(公告)日：2013-09-05
申请号：JP2012021630
申请日：2012-02-03
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YAMAJI KENSUKE , SATO MASAHIKO , YOSHIKAWA MASAAKI , ISHII KENJI , YOSHINAGA HIROSHI , OGAWA SADAFUMI , UCHITANI TAKESHI , TAKAGI HIROTADA , SESHIMO TAKUYA , KAWADA TEPPEI , YOSHIURA ARINOBU , IMADA TAKAHIRO , GOTO SO , HASE TAKAMASA , SHIMOKAWA TOSHIHIKO , YUASA SHUTARO , SUZUKI AKIRA
IPC分类号： G03G15/20
CPC分类号： G03G15/2075 , G03G15/2025 , G03G15/2053 , G03G2215/2035
摘要： PROBLEM TO BE SOLVED: To provide a fixing device capable of reducing slide resistance at a nip part formed by a fixing belt and a stationary member in an efficient and stable manner without causing fixing failure, even in the case where warm-up time or first-print time is short, and the device is operated at a high speed; and an image forming apparatus.SOLUTION: A sheet-like member 22 impregnated with lubricant is installed to be interposed between a stationary member and a fixing belt over a width direction at a position of a nip part. The sheet-like member 22 has a flow channel 22d formed at the nip part through which lubricant impregnated into one end side in the width direction is moved to the other end side in the width direction by running of the fixing belt.
摘要翻译：要解决的问题：即使在预热时间或第一次的情况下，提供一种能够以有效且稳定的方式有效地且稳定地降低由定影带和固定部件形成的辊隙部分处的滑动阻力的定影装置，打印时间短，设备运行速度快; 和图像形成装置。解决方案：浸渍有润滑剂的片状构件22安装成在夹持部的位置处沿宽度方向插入在固定构件和定影带之间。片状构件22具有形成在辊隙部分处的流动通道22d，通过该夹持部分浸渍在宽度方向上的一个端侧的润滑剂通过定影带的移动而在宽度方向上移动到另一端侧。

5. 发明专利

JP2013164438A 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：JP2013164438A
公开(公告)日：2013-08-22
申请号：JP2012026030
申请日：2012-02-09
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： UCHITANI TAKESHI , SATO MASAHIKO , YOSHIKAWA MASAAKI , ISHII KENJI , OGAWA SADAFUMI , IMADA TAKAHIRO , TAKAGI HIROTADA , SAITO KAZUYA , IWATANI NAOTAKE , SHIMOKAWA TOSHIHIKO , YAMAJI KENSUKE , KAWATA TEPPEI , HASE TAKEMASA , SESHIMO TAKUYA , YUASA SHUTARO , YOSHIURA ARINOBU , GOTO SO , SUZUKI AKIRA , YOSHINAGA HIROSHI
IPC分类号： G03G15/20
CPC分类号： G03G15/2078 , G03G15/2039 , G03G15/2042 , G03G2215/2035
摘要： PROBLEM TO BE SOLVED: To provide a fixing device that prevents a reduction in temperature detection accuracy even when a temperature of a fixing belt increases due to temperature rise.SOLUTION: A fixing device 20 includes a fixing belt 21, a nip forming member 24, a pressure roller 22 that is an opposite rotating body, and a halogen heater 23 that is a heat source. The fixing device 20 is further provided with a reflection member 26 that reflects heat from the halogen heater 23; and the heat of the heater is concentrated into a predetermined range. A temperature sensor 27 for detecting a surface temperature of the fixing belt is arranged to detect the vicinity of a portion of the fixing belt 21 that is most likely to be deformed during heating by the halogen heater 23.
摘要翻译：要解决的问题：提供一种定影装置，即使当定影带的温度由于温度升高而升高时也能够防止温度检测精度的降低。解决方案：定影装置20包括定影带21，辊隙形成构件24，作为相反旋转体的加压辊22和作为热源的卤素加热器23。定影装置20还设置有反射部件26，其反射来自卤素加热器23的热量; 并且加热器的热量集中在预定范围内。布置用于检测定影带的表面温度的温度传感器27，以检测由卤素加热器23加热期间最可能变形的定影带21的一部分附近。

6. 发明专利

JP2013152397A 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：JP2013152397A
公开(公告)日：2013-08-08
申请号：JP2012014003
申请日：2012-01-26
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： ISHII KENJI , SATO MASAHIKO , YOSHIKAWA MASAAKI , YOSHINAGA HIROSHI , UCHITANI TAKESHI , OGAWA SADAFUMI , TAKAGI HIROTADA , IWATANI NAOKI , SESHIMO TAKUYA , IMADA TAKAHIRO , GOTO SO , HASE TAKAMASA , SAITO KAZUYA , SHIMOKAWA TOSHIHIKO , YUASA SHUTARO , KAWADA TEPPEI , YOSHIURA ARINOBU , YAMAJI KENSUKE , SUZUKI AKIRA
IPC分类号： G03G15/20
CPC分类号： G03G15/206 , G03G15/2053 , G03G2215/2035
摘要： PROBLEM TO BE SOLVED: To provide a fixing device and an image forming apparatus that have a reduced warm-up time and first-print time, prevent the occurrence of poor fixation even when the apparatus is operated at a high speed, hardly cause rupture of a sheet-like member that is impregnated with lubricant and provided to cover a stationary member, and can stably reduce slide resistance at a nip part formed by a fixing belt and the stationary member over time.SOLUTION: A sheet-like member 22 made of a low friction material and impregnated with lubricant is provided to cover a stationary member 26 along the circumferential direction of the stationary member 26 so as to be interposed in the width direction between the stationary member 26 and a fixing belt 21 at a position of a nip part. The sheet-like member 22 is fixed to the stationary member 26 at least at a position of the nip part and a position in the upstream side in the circumferential direction of the position of the nip part in the width direction by attaching means 49.
摘要翻译：要解决的问题：为了提供具有减少的预热时间和第一次打印时间的定影装置和图像形成装置，即使当装置高速操作时也防止发生不良的固定，几乎不会破裂浸渍有润滑剂并设置成覆盖固定构件的片状构件，并且可以随着时间稳定地降低由定影带和固定构件形成的夹持部分处的滑动阻力。解决方案：由片状构件22制成的片状构件22 提供了一种低摩擦材料并浸渍有润滑剂，以沿静止部件26的圆周方向覆盖静止部件26，从而在夹持位置处的固定部件26和定影带21之间沿宽度方向插入部分。片状构件22至少在夹持部的位置和通过附接装置49在夹持部的位置沿宽度方向的位置的周向上游侧的位置固定到固定构件26。

7. 发明专利

JP2009003023A Developing device, process cartridge and image forming apparatus 有权
标题翻译：开发装置，过程盒和图像形成装置
公开(公告)号：JP2009003023A
公开(公告)日：2009-01-08
申请号：JP2007161768
申请日：2007-06-19
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KIMURA HIDEKI , KIMURA NORIYUKI , HORI EISUKE , NAGASHIMA HIROYASU , KUWABARA NOBUO , ONO HIROSHI , AKAFUJI MASAHIKO , OOJIYA ATSUYA , KAWASUMI MASANORI , SATO MASAHIKO
IPC分类号： G03G15/08 , G03G9/08 , G03G9/087
摘要： PROBLEM TO BE SOLVED: To provide a developing device in which application of the powder pressure of developer in a developer storage chamber on developer in a developer supply chamber is suppressed and overfilling of developer into the developer supply chamber can be suppressed, a process cartridge and an image forming apparatus. SOLUTION: The developing device 4 has a powder pressure dividing plate 110 above an agitator 108 in a developing hopper 106, wherein the powder pressure dividing plate 110 divides the inside of the developing hopper into the developer supply chamber 102 and the developer storage chamber 101 so that the powder pressure of toner in the developer storage chamber 101 is prevented from being applied on the developer supply chamber 102. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种显影装置，其中抑制了显影剂供应室中的显影剂存储室中的显影剂储存室中的粉末压力的施加并且可以抑制显影剂向显影剂供给室中的过度填充，处理盒和图像形成装置。解决方案：显影装置4在显影料斗106中具有在搅拌器108上方的粉末压力分隔板110，其中粉末压力分隔板110将显影剂料斗的内部分成显影剂供应室102和显影剂储存器使得显影剂储存室101中的调色剂的粉末压力被防止施加在显影剂供应室102上。（C）2009年，JPO和INPIT

8. 发明专利

JP2008107509A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2008107509A
公开(公告)日：2008-05-08
申请号：JP2006289409
申请日：2006-10-25
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SATO MASAHIKO , KAWASUMI MASANORI , UCHITANI TAKESHI , HASHIMOTO SHUNICHI , YOSHINAMI HIDEKI , TAGUMA KENICHI , SEO TETSUYA , MURAKAMI EISAKU
IPC分类号： G03G15/00
摘要： PROBLEM TO BE SOLVED: To obtain an image forming apparatus capable of preventing image disturbance, such as transfer omission, by a simple configuration. SOLUTION: The image forming apparatus includes: a secondary transfer device (transfer means) 17 for transferring a toner image to a transfer material S; a fixing device (fixing means) 23 for fixing a toner image transferred to a transfer material S by the secondary transfer device 17; a control section (fixing temperature control means) 50 for controlling the fixing temperature of the fixing device 23; and transfer material detection sensors (means for detecting a quantity of bend) 51a to 51c for detecting a quantity of bend in the transfer material S conveyed. The secondary transfer device 17 conveys the transfer material S with a toner image transferred thereto toward the fixing device 23. The transfer material detection sensors 51a to 51c are disposed between the secondary transfer device 17 and the fixing device 23. The control section 50 alters the fixing temperature according to a quantity of bend in the transfer material, detected by the transfer material detection sensor. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：通过简单的配置来获得能够防止诸如传送省略的图像干扰的图像形成装置。图像形成装置包括：用于将调色剂图像转印到转印材料S的二次转印装置（转印装置）17; 用于通过二次转印装置17固定转印到转印材料S上的调色剂图像的定影装置（固定装置）23; 用于控制定影装置23的定影温度的控制部分（定影温度控制装置）50; 以及转印材料检测传感器（用于检测弯曲量的装置）51a至51c，用于检测传送的转印材料S中的弯曲量。二次转印装置17将转印材料S与转印到其上的调色剂图像朝向定影装置23传送。转印材料检测传感器51a至51c设置在二次转印装置17和定影装置23之间。控制部分50改变根据由转印材料检测传感器检测的转印材料中的弯曲量来定影温度。版权所有（C）2008，JPO＆INPIT

9. 发明专利

JP2006284824A Conductive member image forming apparatus 有权
标题翻译：导电成像图像形成装置
公开(公告)号：JP2006284824A
公开(公告)日：2006-10-19
申请号：JP2005103508
申请日：2005-03-31
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KIMURA YOSHIYUKI , MURAKAMI EISAKU , SATO MASAHIKO , KAWASUMI MASANORI , UCHITANI TAKESHI , KAYAHARA SHIN , HASHIMOTO SHUNICHI , YOSHINAMI HIDEKI , SHIMOJO EIJI , NARITA YUTAKA
IPC分类号： G03G15/02 , F16C13/00
摘要： PROBLEM TO BE SOLVED: To provide a conductive support member having a configuration capable of preventing (1) abnormal discharge due to a dimensional change in a gap and (2) a dimensional change in a gap between each gap holding member and an electric resistance adjustment layer which is caused by an environmental change, by preventing a change in a gap between a charged surface and a surface to be charged, which are disposed in proximity with each other.
SOLUTION: The conductive support member includes: a conductive support base 102A that is long and has the electric resistance adjustment layer 102B on its outside; and the gap holding members 102C inserted in step parts 102B1 formed in the longitudinal ends of the electric resistance adjustment layer 102B, and capable of setting a predetermined amount of gap between the outermost part of the electric resistance adjustment layer 102B and a member 101 facing that. Each step part 102B1 has an edge 102E formed from an inclined face whose outer shape dimension increases towards the downstream side from the upstream side in the direction where the gap holding member 102C is inserted. Each of the gap holding members 102C is shaped such that a level difference is made to set the predetermined amount gap when this member 102C is inserted into the step parts 102B1.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：解决问题的方案：提供一种能够防止（1）由于间隙的尺寸变化引起的异常放电的结构的导电性支撑构件，（2）各间隙保持构件与间隙保持构件的间隙的尺寸变化电阻调节层，其由环境变化引起，通过防止彼此靠近设置的带电表面和被充电表面之间的间隙的变化。导电支撑构件包括：导电支撑基座102A，其外部具有电阻调节层102B; 以及间隙保持构件102C，其插入形成在电阻调节层102B的纵向端部的台阶部分102B1中，并且能够在电阻调节层102B的最外部分与面向该电阻调节层102B的构件101之间设定预定量的间隙。每个台阶部分102B1具有从其间隙保持构件102C插入方向的上游侧朝向下游侧增大的倾斜面形成的边缘102E。每个间隙保持构件102C被成形为使得当该构件102C被插入到台阶部102B1中时，设定水平差来设定预定的间隙。版权所有（C）2007，JPO＆INPIT

10. 发明专利

JP2006154487A Fixing device, image forming apparatus, and control method for the fixing device 审中-公开
标题翻译：固定装置，图像形成装置以及固定装置的控制方法
公开(公告)号：JP2006154487A
公开(公告)日：2006-06-15
申请号：JP2004346883
申请日：2004-11-30
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SATO MASAHIKO , SHINSHI AKIRA , IWATANI NAOKI
IPC分类号： G03G15/20
CPC分类号： G03G15/2039 , G03G2215/20
摘要： PROBLEM TO BE SOLVED: To reduce energy consumed during a standby period while shortening a start-up period, and to obtain stable fixability after the fixing device is started up.
SOLUTION: Supply power duty is controlled so that when the fixing device is started up, average power supplied to a heating means during a period (t
0 to t
1 ) prior to the rotations of rotating members, such as a fixing member and a pressure member, is more than average power supplied to the heating means after the rotations of the rotary members (D
0 >D
1 ). This increases the temperature of the fixing member speedily and shortens the start-up period of the fixing device. This also reduces overshoot of the temperature of the fixing member and stabilizes temperature control for the fixing device.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了减少在待机期间消耗的能量，同时缩短启动周期，并且在定影装置启动之后获得稳定的定影性。
解决方案：控制供电功率，使得当定影装置启动时，在一段时间（t 0 至t 1 ）期间提供给加热装置的平均功率旋转构件旋转之前，旋转构件（例如固定构件和压力构件）的转动之前，是在旋转构件旋转之后提供给加热装置的平均功率（D 0 > D 1 ）。这样可以快速地增加固定部件的温度并缩短定影装置的启动周期。这也减少了固定部件的温度过冲，并稳定了定影装置的温度控制。版权所有（C）2006，JPO＆NCIPI

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