专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

41. 发明专利

JP2013164475A 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：JP2013164475A
公开(公告)日：2013-08-22
申请号：JP2012026647
申请日：2012-02-09
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YUASA SHUTARO , UCHITANI TAKESHI , HASE TAKAMASA , SESHIMO TAKUYA , YOSHINAGA HIROSHI , ISHII KENJI , OGAWA SADAFUMI , YOSHIURA ARINOBU , KAWADA TEPPEI , SHIMOKAWA TOSHIHIKO , YAMAJI KENSUKE , YOSHIKAWA MASAAKI , SATO MASAHIKO , TAKAGI HIROTADA , IMADA TAKAHIRO , GOTO SO , SUZUKI AKIRA , NAMEKATA SHINICHI , SAITO KAZUYA
IPC分类号： G03G15/20
CPC分类号： G03G15/2064 , G03G15/205 , G03G2215/2035
摘要： PROBLEM TO BE SOLVED: To provide a fixing device configured to control cold offset during the second fixation after power-on of a main power source, and to provide an image forming device.SOLUTION: A control part 200 of control means checks whether a series of fixing operation is the first fixing operation after power-on of a main power source or not (S3). When it is the first fixing operation after the power-on of the main power source, the control part sets a setting time A for the setting time of post-operation which is performed after a rear end of the last sheet passes through a nip part N in a series of fixing operation and rotates a fixing belt 121 and a pressure roller 122 as a pressure member while maintaining the fixing belt 121 being surface endless moving body at a predetermined temperature (S4), and performs longer post-operation than those after the second and subsequent fixing operations.
摘要翻译：要解决的问题：提供一种被配置为在主电源通电之后的第二次固定期间控制冷偏移并且提供图像形成装置的定影装置。解决方案：控制装置的控制部分200检查系列固定操作是主电源接通后的第一次定影操作（S3）。当在主电源通电之后的第一次定影操作时，控制部分设定在最后一个纸张的后端经过夹持部分之后执行的后期操作的设定时间的设定时间A N进行一系列定影操作，并且将定影带121和作为压力构件的加压辊122旋转，同时将定影带121保持在表面循环移动体的预定温度（S4），并且执行比后者更长的后期操作第二次和随后的定影操作。

42. 发明专利

JP2013164451A 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：JP2013164451A
公开(公告)日：2013-08-22
申请号：JP2012026165
申请日：2012-02-09
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： HASE TAKAMASA , SATO MASAHIKO , NAMEKATA SHINICHI , ISHII KENJI , UCHITANI TAKESHI , OGAWA SADAFUMI , KAWADA TEPPEI , YOSHIURA ARINOBU , SHIMOKAWA TOSHIHIKO , YUASA SHUTARO , YAMAJI KENSUKE , YOSHIKAWA MASAAKI , YOSHINAGA HIROSHI , TAKAGI HIROTADA , IWATANI NAOKI , IMADA TAKAHIRO , GOTO SO , SESHIMO TAKUYA , SUZUKI AKIRA , SAITO KAZUYA
IPC分类号： G03G15/20
摘要： PROBLEM TO BE SOLVED: To provide a fixing device capable of suppressing the occurrence of plastic deformation in which the central part of a fixing member is depressed toward inside, and an image forming apparatus.SOLUTION: A control unit 200 being control means carries power equal to or more than a predetermined value to a halogen heater 123 as a heat source to heat a fixing belt 121, when a pressure roller 122 as a pressure member is in a rotating state, and a position detection sensor 180 is outputting a signal (Low signal) that is output when pressure applied between the fixing belt 121 as a fixing member and the pressure roller 122 is equal to or more than applied pressure exerted by rotation of the fixing belt 121 along with the pressure roller 122.
摘要翻译：要解决的问题：提供一种能够抑制固定构件的中心部向内侧压缩的塑性变形的固定装置和图像形成装置。解决方案：作为控制装置的控制单元200承载功率相等当作为加压构件的加压辊122处于旋转状态时，作为加热定影带121的热源的卤素加热器123达到或大于预定值，位置检测传感器180输出信号（低信号），其作为固定构件的定影带121和加压辊122之间施加的压力等于或大于通过定影带121与加压辊122的旋转而施加的施加压力。

43. 发明专利

JP2013148709A 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：JP2013148709A
公开(公告)日：2013-08-01
申请号：JP2012008961
申请日：2012-01-19
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YUASA SHUTARO , SATO MASAHIKO , YOSHIKAWA MASAAKI , ISHII KENJI , OGAWA SADAFUMI , IMADA TAKAHIRO , TAKAGI HIROTADA , SAITO KAZUYA , IWATANI NAOKI , SHIMOKAWA TOSHIHIKO , YAMAJI KENSUKE , KAWADA TEPPEI , HASE TAKAMASA , SESHIMO TAKUYA , UCHITANI TAKESHI , YOSHIURA ARINOBU , GOTO SO , SUZUKI AKIRA , YOSHINAGA HIROSHI
IPC分类号： G03G15/20
摘要： PROBLEM TO BE SOLVED: To provide a fixing device that prevents excessive temperature increase in a non-paper-passing region without reducing productivity.SOLUTION: The fixing device includes a first passage width W1 for allowing a recording medium to pass, a second passage width W2 which is larger than the first passage width W1 and including the first passage width W1, and a third passage width W3 which is smaller than the first passage width W1 and included in the first passage width W1. A heat source for heating a fixing member 21 includes: a first heat generation section 23a arranged in accordance with the first passage width W1; second heat generation sections 23b arranged at the ends not overlapping the first passage width W1 in the second passage width W2; and a third heat generation section 23c arranged in accordance with the third passage width W3.
摘要翻译：要解决的问题：提供一种防止非纸张通过区域过度升温而不降低生产率的定影装置。解决方案：固定装置包括用于允许记录介质通过的第一通道宽度W1，第二通道宽度 W2大于第一通道宽度W1并包括第一通道宽度W1，第三通道宽度W3小于第一通道宽度W1并包括在第一通道宽度W1中。用于加热定影构件21的热源包括：根据第一通道宽度W1布置的第一热产生部分23a; 布置在第二通道宽度W2中不与第一通道宽度W1重叠的端部的第二发热部23b; 以及根据第三通道宽度W3布置的第三发热部23c。

44. 发明专利

JP2013142796A 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：JP2013142796A
公开(公告)日：2013-07-22
申请号：JP2012003264
申请日：2012-01-11
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KAWADA TEPPEI , SATO MASAHIKO , YOSHIKAWA MASAAKI , ISHII KENJI , YOSHINAGA HIROSHI , OGAWA SADAFUMI , IMADA TAKAHIRO , TAKAGI HIROTADA , SAITO KAZUYA , IWATANI NAOKI , YAMAJI KENSUKE , HASE TAKAMASA , SHIMOKAWA TOSHIHIKO , YUASA SHUTARO , SESHIMO TAKUYA , UCHITANI TAKESHI , YOSHIURA ARINOBU , GOTO SO , SUZUKI AKIRA
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G15/2064 , G03G2215/2035
摘要： PROBLEM TO BE SOLVED: To improve the durability of a fixing belt in a fixing device for directly heating the fixing belt.SOLUTION: Both of axial ends of a rotatable and endless fixing belt 21 are held by belt holding members 40, and a heat source 23 and a nip forming member 24 are arranged inside the fixing belt 21. A nip part N is formed by abutting a pressure roller 22 on the fixing belt 21. A pressure roller 22 and both of the belt holding members 40 are arranged to be deviated in the axial direction without having an overlap region in the axial direction.
摘要翻译：要解决的问题：提高用于直接加热定影带的定影装置中的定影带的耐久性。解决方案：旋转和环形定影带21的轴向端部都由带保持构件40保持，并且热源 23和夹持形成构件24布置在定影带21的内部。通过将加压辊22邻接在定影带21上形成夹持部N.压力辊22和两个带束保持构件40被布置成偏离在轴向上不具有轴向重叠区域。

45. 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

46. 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

47. 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

48. 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

49. 发明专利

JP2008310051A Fixing device, image forming apparatus, fixing method, and image forming method 有权
标题翻译：固定装置，图像形成装置，固定方法和图像形成方法
公开(公告)号：JP2008310051A
公开(公告)日：2008-12-25
申请号：JP2007157958
申请日：2007-06-14
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TAKAGI HIROTADA
IPC分类号： G03G15/20 , G03G21/00
摘要： PROBLEM TO BE SOLVED: To provide a fixing device including a plurality of heat generation means, which generate heat by receiving power supplied from a commercial power source and an auxiliary power source charged by the commercial power source and each of which has different distributions of heat generation in the width direction of a sheet, to provide an image forming apparatus such as a copying machine, facsimile, or printer, which has this fixing device, to provide a fixing method using such a plurality of heat generation means, and to provide an image forming method using them. SOLUTION: The fixing device uses: the heat generation means 63 for generating heat by receiving power supplied from the commercial power source; the heat generation means 64 that generates heat by receiving power supplied from the auxiliary power source 83 charged by the commercial power source; and a temperature detection means 88 for detecting the temperatures of the heat generation means 63 and 64. The heat generation means 63 has heat generation parts 63a and 63b that differ from each other in the distribution of heat generation in the width direction of a sheet. The heat generation means 64 also has heat generation parts 64a and 64b that differ from each other in the distribution of heat generation in the width direction of a sheet. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种定影装置，其包括多个发热装置，其通过从商用电源提供的电力和由商用电源充电的辅助电源接收电力而产生热量，在片材的宽度方向上发热的分布，以提供具有该定影装置的复印机，传真机或打印机等图像形成装置，以提供使用这种多个发热装置的定影方法，以及以提供使用它们的图像形成方法。解决方案：定影装置使用：发热装置63，用于通过接收从商用电源供应的电力来产生热量; 发热装置64，通过从由商用电源充电的辅助电源83供给的电力产生热量; 以及用于检测发热装置63和64的温度的温度检测装置88.发热装置63具有在片材的宽度方向上的发热分布中彼此不同的发热部分63a和63b。发热装置64还具有在片材的宽度方向上的发热分布中彼此不同的发热部件64a和64b。版权所有（C）2009，JPO＆INPIT

50. 发明专利

JP2008257270A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2008257270A
公开(公告)日：2008-10-23
申请号：JP2008168008
申请日：2008-06-27
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KISHI KAZUTO , MATSUZAKA SUSUMU , KATO YASUHISA , AMITA AKIYASU , OKAMOTO MASAMI , TSUKIOKA TAKATADA , TAKAGI HIROTADA
IPC分类号： G03G21/00 , G03G15/20
摘要： PROBLEM TO BE SOLVED: To provide a capacitor device, a fixing device, and an image forming apparatus capable of surely comprehending a failure of a capacitor device and easy to use. SOLUTION: Provided are failure-detecting means 48 to 50 that detect a failure of the capacitor device 41 that supplies discharged electric power from a capacitor 42 that can be charged and discharged to a power-feeding body 23. When a failure of the capacitor device 41 is detected by the failure-detecting means 48 to 50, the number of sheets transferred per unit time is reduced in a plurality of recording media that are transferred continuously to fixing devices 21 to 23. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供能够确定地理解电容器装置的故障并且易于使用的电容器装置，定影装置和图像形成装置。解决方案：提供了故障检测装置48至50，其检测从可以充电和放电到馈电主体23的电容器42提供放电电力的电容器装置41的故障。当故障检测装置电容器装置41由故障检测装置48至50检测到，在连续传送到定影装置21至23的多个记录介质中，每单位时间转印的纸张数量减少。版权所有（C））2009，JPO＆INPIT

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式