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1. 发明专利

JP2017116572A 定着装置及び画像形成装置审中-公开
公开(公告)号：JP2017116572A
公开(公告)日：2017-06-29
申请号：JP2015248342
申请日：2015-12-21
申请人：株式会社リコー , Ricoh Co Ltd
发明人： ISHII KENJI , YOSHINAGA HIROSHI , KISHI KAZUTO , FUJIMOTO IPPEI , SETO TAKASHI , SEKI TAKAYUKI , SAWADA KAZUNARI
IPC分类号： G03G15/20
摘要：【課題】定着ベルトとニップ形成部材の摺擦により発生する摩耗粉の混入による粘度上昇のために潤滑機能が損なわれ、定着ベルトを駆動回転させる際に発生するトルクが上昇する現象を抑制する。【解決手段】可撓性を有する無端状のベルトと、前記ベルトの外側に設けられ、前記ベルトに対向する加圧部材と、前記ベルトの内部に設けられる熱源と、前記ベルトの内側に設けられ、前記ベルトと前記加圧部材との間に定着ニップを形成するニップ形成部材と、前記ニップ形成部材の、前記ベルトに対向する面を覆う熱移動補助部材とを有する、定着装置において、前記ベルトの内周面に付着する第1の潤滑剤と少なくとも基油種類を合わせた第2の潤滑剤を、前記ベルトの内部の定着ニップ領域以外の箇所に配して、前記第2の潤滑剤の基油が加熱により前記ベルトに滴下する構成を有する。【選択図】図2

2. 发明专利

JP2014174440A 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：JP2014174440A
公开(公告)日：2014-09-22
申请号：JP2013048951
申请日：2013-03-12
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： ARAI YUJI , SEKI TAKAYUKI , MINBU RYUICHI , YAMAGUCHI YOSHINORI , TAMAKI TOSHITARO , SHIMOKAWA TOSHIHIKO , IKEBUCHI YUTAKA , YOSHINAGA HIROSHI , SAITO KAZUYA , YUASA SHUTARO
IPC分类号： G03G15/20
摘要： PROBLEM TO BE SOLVED: To provide a fixing device with a simple configuration capable of achieving energy saving and a reduction in first print time, and suppressing an increase in temperature at end parts without reducing productivity.SOLUTION: A fixing device includes a fixing rotating body, a heat source that heats the fixing rotating body, a non-rotatable nip forming member that is brought into contact with the fixing rotating body inside the fixing rotating body, a pressure rotating body that forms a nip with the nip forming member with the fixing rotating body therebetween, and a support member that receives a pressure applied to the nip forming member. The fixing device further includes a shield member that can be moved between an inner surface of the fixing rotating body and the heat source, and the shield member is constantly in contact with the support member.
摘要翻译：要解决的问题：提供具有能够实现节能并且缩短第一打印时间的简单配置的定影装置，并且在不降低生产率的情况下抑制端部温度的升高。解决方案：一种定影装置，包括固定旋转体，加热固定旋转体的热源，与固定旋转体内的固定旋转体接触的不可旋转的夹持形成部件，与固定旋转体的固定旋转体形成辊隙的压力旋转体旋转体，以及承受施加到辊隙形成构件的压力的支撑构件。定影装置还包括能够在固定旋转体的内表面和热源之间移动的屏蔽构件，并且屏蔽构件不断地与支撑构件接触。

3. 发明专利

JP2014085430A 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：JP2014085430A
公开(公告)日：2014-05-12
申请号：JP2012232701
申请日：2012-10-22
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SAITO KAZUYA , SEKI TAKAYUKI , ARAI YUJI , YAMAGUCHI YOSHINORI , TAMAKI TOSHITARO , IKEBUCHI YUTAKA
IPC分类号： G03G15/20 , G03G21/00
摘要： PROBLEM TO BE SOLVED: To prevent a variation in voltage at the start of energization to fixing member heating means and flicker of a fluorescent light due to the variation, and minimize an influence to fixing temperature control.SOLUTION: A fixing device uses soft start control to gradually heat heating means at the start of energization to the heating means for heating a fixing member, and provides energization to the heating means so as to change a method of the soft start control according to a non-energization time from the completion of the previous energization to the start of the subsequent energization to the heating means and compensate the increment and decrement of effective power caused by the change in the control method.
摘要翻译：要解决的问题：为了防止由于变化而导致定影部件加热装置通电开始时的电压变化和荧光灯闪烁，并且对定影温度控制的影响最小化。解决方案：定影装置使用软启动控制在通电开始时将加热装置逐渐加热到用于加热定影构件的加热装置，并且向加热装置提供通电，以便根据从非完全的完成时的非通电时间改变软启动控制的方法先前通电到开始对加热装置的随后的通电，并补偿由控制方法的变化引起的有效功率的增减。

4. 发明专利

JP2012163821A 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：JP2012163821A
公开(公告)日：2012-08-30
申请号：JP2011024990
申请日：2011-02-08
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SEKI TAKAYUKI
IPC分类号： G03G15/20
摘要： PROBLEM TO BE SOLVED: To provide a fixing device and an image forming apparatus that can improve durability of a fixing member, a pressing member and a sliding member and prevent rotation unevenness of the fixing member generated during the movement of the sliding member, wrinkles in transfer paper due to vibration and image disturbance.SOLUTION: A fixing device having: a fixing member; and a pressurizing member for forming a nip part to be opposed to the fixing member, and fixing an unfixed toner image to a recording medium passing through the nip part comprises: a pressing member provided in the fixing member to press the pressurizing member from the inside of the fixing member; a sliding member moving by a prescribed distance between the fixing member and the pressing member; and a clocking means for measuring integration time in which the recording medium passes through the nip part. The prescribed distance in which the sliding member moves is changed corresponding to the integration time.
摘要翻译：要解决的问题：提供一种能够提高固定部件，按压部件和滑动部件的耐久性的固定装置和图像形成装置，并且防止在滑动部件移动期间产生的固定部件的旋转不均匀，由于振动和图像干扰，转印纸上的皱纹。解决方案：一种固定装置，具有：固定构件; 以及加压构件，用于形成与所述固定构件相对的夹持部，以及将未定影的调色剂图像定影到通过所述夹持部的记录介质的步骤包括：设置在所述固定构件中的按压构件，以从所述内侧按压所述加压构件的固定构件; 在所述固定构件和所述按压构件之间移动规定距离的滑动构件; 以及用于测量记录介质通过辊隙部分的积分时间的计时装置。滑动构件移动的规定距离根据积分时间而变化。版权所有（C）2012，JPO＆INPIT

5. 发明专利

JP2010044357A Fixing device and image forming apparatus having the same 有权
标题翻译：固定装置和具有该装置的图像形成装置
公开(公告)号：JP2010044357A
公开(公告)日：2010-02-25
申请号：JP2009065084
申请日：2009-03-17
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SEKI TAKAYUKI
IPC分类号： G03G15/20
摘要： PROBLEM TO BE SOLVED: To provide a fixing device that equalizes the temperature distribution in the longitudinal direction of a fixing member in passing paper, and also that reduces heat leakage from the fixing member in standby to an ambient atmosphere, and to provide an image forming apparatus having the same.
SOLUTION: The fixing device includes: a fixing member 24 having a fixing heat source in the interior; a pressing member 25 for pressing the fixing member; and a heat transfer member 23 coming into contact with a portion on the surface of either one of the fixing member and the pressing member. The heat transfer member has a plurality of alternately arranged members 30, 31, in which the thermal conductivities are different in the circumference direction, on a heat insulating layer 29 consisting of a low thermal conductive material, wherein the thermal conductivity of the member of one side is larger than that on the surface of any one of the fixing member and the pressing member, and the thermal conductivity of the other member is equal to or smaller than that on the surface of any one of the fixing member and the pressing member.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种固定装置，其使通过纸张中的固定构件的纵向温度分布相等，并且还减少了待机到周围大气的固定构件的热泄漏，并且提供具有该图像形成装置的图像形成装置。解决方案：固定装置包括：在内部具有固定热源的固定构件24; 用于按压固定构件的按压构件25; 以及传热构件23与固定构件和按压构件中的任一个的表面上的部分接触。传热构件具有多个交替排列的构件30,31，其中热导率在圆周方向上不同，在由低导热材料组成的绝热层29上，其中一个构件的导热性侧比固定构件和按压构件中的任何一个的表面上的导热性大，另一构件的导热率等于或小于固定构件和按压构件中的任一个的表面上的热导率。版权所有（C）2010，JPO＆INPIT

6. 发明专利

JP2008096627A 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：JP2008096627A
公开(公告)日：2008-04-24
申请号：JP2006277297
申请日：2006-10-11
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SEKI TAKAYUKI
IPC分类号： G03G15/20
摘要： PROBLEM TO BE SOLVED: To prevent heat conduction from a heating roller to a heat conduction member to the utmost and also to reduce heat radiation from the heat conduction member.
SOLUTION: In the fixing device where a temperature detection member 4 for a fixing roller 1 is arranged at the end in the longitudinal direction of the fixing roller 1, and a heat transfer member 11 is arranged in contact with a part of the surface of the fixing roller 1, the heat transfer member 11 is constituted by arranging high heat conductivity material 13 and low heat conductivity material 14 alternately on a heat insulating layer 12 made of heat resistant resin in its peripheral direction. The heat transfer member 11 is controlled so that the low heat conductivity material 14 may come into contact with the fixing roller 1 when the heat transfer member 11 stops.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了防止从加热辊到导热构件的热传导至最大，并且还减少来自导热构件的热辐射。解决方案：在定影辊1的长度方向端部配置有用于定影辊1的温度检测部件4的定影装置中，并且传热部件11被布置成与定影辊1的一部分接触定影辊1的表面，传热构件11由在周向上由耐热树脂制成的绝热层12上交替布置高导热性材料13和低导热性材料14构成。控制传热构件11，使得当传热构件11停止时，低导热性材料14可能与定影辊1接触。版权所有（C）2008，JPO＆INPIT

7. 发明专利

JP2004272147A Fixing device, and image forming apparatus using the same 审中-公开
公开(公告)号：JP2004272147A
公开(公告)日：2004-09-30
申请号：JP2003066050
申请日：2003-03-12
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SEKI TAKAYUKI
IPC分类号： G03G21/00 , G03G15/20
摘要： PROBLEM TO BE SOLVED: To provide a fixing device capable of preventing excess temperature rising of a fixing roller even when a paper sheet passed between a separation claw and the fixing roller reaches a temperature detecting position and an image forming apparatus using the fixing device. SOLUTION: A temperature detection element (for example, a thermistor) 3 brought into contact with the surface of the fixing roller 1 is arranged outside a paper passing range in consideration of the maximum paper passing width of a transfer paper sheet 6. Even when the transfer paper 6 passes a position of the separation claw 8 and enters a position of the temperature detection means 3 at a state that the separation claw is released, it does not enter between the temperature detection means 3 and the fixing roller 1. COPYRIGHT: (C)2004,JPO&NCIPI

8. 发明专利

JP2003280444A Fixing control device and image forming apparatus 有权
标题翻译：固定控制装置和图像形成装置
公开(公告)号：JP2003280444A
公开(公告)日：2003-10-02
申请号：JP2002078552
申请日：2002-03-20
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SEKI TAKAYUKI
IPC分类号： G03G21/00 , G03G15/20 , G03G21/14 , H05B3/00
摘要： PROBLEM TO BE SOLVED: To provide a fixing control device in which temperature control by the turning on/off of a heater is improved and to provide an image forming apparatus having the fixing control device. SOLUTION: In the fixing device equipped with infrared heaters 4a to 4c of different light distributions, the infrared heaters 4a, 4b, and 4c are turned on in that order at a point in time when the temperature of the fixing roller in the position of the thermistor reaches the lowest limit of set temperature L after the temperature of the fixing roller drops during the passage of paper, and the infrared heaters 4c, 4b, and 4a are turned off in that order at a point in time when the temperature of the fixing roller in the position of the thermistor reaches the upper limit of the set temperature H after the temperature of the fixing roller rises during the passage of the paper. This efficiently prevents the fall of the temperature of the middle of the fixing roller, which occurs due to heat response inferiority. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种定影控制装置，其中通过加热器的接通/关闭进行温度控制得到改善，并提供具有定影控制装置的图像形成装置。解决方案：在具有不同光分布的红外线加热器4a至4c的定影装置中，红外线加热器4a，4b和4c在定影辊的温度在在纸张通过期间，定影辊的温度下降之后，热敏电阻的位置达到设定温度L的最低限度，并且红外线加热器4c，4b和4a在该温度的时间点依次关闭在定影辊的温度在纸张通过期间升高之前，热敏电阻位置的定影辊达到设定温度H的上限。这有效地防止了由于热响应劣化而引起的定影辊中部温度的下降。版权所有（C）2004，JPO

9. 发明专利

JP2000075717A Web device of fixing device 有权
标题翻译：固定装置的WEB装置
公开(公告)号：JP2000075717A
公开(公告)日：2000-03-14
申请号：JP24030898
申请日：1998-08-26
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SEKI TAKAYUKI
IPC分类号： G03G21/00 , G03G15/20
摘要： PROBLEM TO BE SOLVED: To provide a web device of a fixing device capable of previously detecting operating errors and reducing costs because of its simple structure. SOLUTION: A web device of a fixing device for use in an image forming device has a web end detection means 14 for detecting the end of a web, and disables copying action at the same time as a web end warning. In this case, the web end detection means 14 detects the end of the web according to changes in tension of the web 4 extended between a pressure member 9 pressing the web 4 against a fixing roller 1 and a web support member 6, and disables the copying action.
摘要翻译：要解决的问题：提供一种能够预先检测操作错误并且由于其简单的结构而降低成本的定影装置的网络装置。解决方案：用于图像形成装置的定影装置的卷筒纸装置具有用于检测卷筒纸末端的卷筒纸末端检测装置14，并且在与纸张端部警告同时禁止复印动作。在这种情况下，卷筒纸末端检测装置14根据卷筒纸4在压纸部件4与定影辊1之间延伸的卷筒纸4的张力的变化和纸幅支承部件6的不同而检测纸幅的端部，复制动作。

10. 发明专利

JP2017116571A 定着装置及び画像形成装置审中-公开
公开(公告)号：JP2017116571A
公开(公告)日：2017-06-29
申请号：JP2015248340
申请日：2015-12-21
申请人：株式会社リコー , Ricoh Co Ltd
发明人： SHIMIZU MISAKI , ISHII KENJI , KISHI KAZUTO , SETO TAKASHI , YOSHINAGA HIROSHI , SEKI TAKAYUKI , FUJIMOTO IPPEI , SAWADA KAZUNARI
IPC分类号： G03G15/20
摘要：【課題】板状加熱体の端部処理をせずに定着装置への搭載を可能とし、その場合でも板状加熱体近傍の部材を傷つけることがなく、かつ、コストを抑制できる定着装置を提供する。【解決手段】定着装置は定着ベルト28、加圧ローラ30、加熱部材56、保持部材57を備えている。加熱部材56は保持部材57によって定着ベルト28の内部に保持されている。また、加熱部材56は、ガラス基材と、該ガラス基材に形成された発熱体と、から構成される。保持部材57の両端をコの字形状に屈曲させ、加熱部材56の両側端部を覆うように構成する。このような保護構造により、加熱部材56端部のバリによって定着ベルト28が損傷することを防止できる。【選択図】図6

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