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1. 发明专利

JP2017090879A 画像形成装置审中-公开
公开(公告)号：JP2017090879A
公开(公告)日：2017-05-25
申请号：JP2016005961
申请日：2016-01-15
申请人：株式会社リコー , Ricoh Co Ltd
发明人： SUGIYAMA RYUHEI , ONO HIROSHI , YAMAOKA HIRONORI , YAMANO MOTOYOSHI , SASAKI YOSHIKUNI , TOKUDA TETSUO
IPC分类号： G03G15/20
摘要：【課題】定着部材の温度に基づく生産性制御を行うだけでなく、定着部材温度が急峻に下がり得る場合にも定着不良を生じることなく一定の生産性を確保する。【解決手段】回転可能な定着部材、定着部材を加熱する熱源、及び定着部材の温度を検知する温度検知手段を有する定着装置と、所定の設定時間経過後に温度検知手段により検出された定着部材の温度に基づいて熱源のオンオフ制御を行って画像形成処理の生産性を制御するコントローラとを有する画像形成装置において、前記コントローラが、前記熱源へ供給可能な電力を判定する判定手段を備え、前記熱源へ供給可能な電力に基づく第二の生産性制御を、前記第一の生産性制御と並行して独立に実施し、より生産性が低い方を画像形成装置の生産性として適用する。【選択図】図2

2. 发明专利

JP2014215376A 定着装置、定着装置の制御方法および画像形成装置审中-公开
标题翻译：固定装置，其控制方法和图像形成装置
公开(公告)号：JP2014215376A
公开(公告)日：2014-11-17
申请号：JP2013090985
申请日：2013-04-24
申请人：株式会社リコー , Ricoh Co Ltd
发明人： UTSUNOMIYA KOICHI , OKAMOTO MASAMI , SUZUKI NAOTO , TOKUDA TETSUO , SAKAMAKI TAKASHI , HIROSE FUMIHIRO , YAMANO MOTOYOSHI
IPC分类号： G03G15/20
CPC分类号： G03G15/20
摘要：【課題】安定性の高い定着部材の摺擦動作を実現する。【解決手段】定着ベルト24と、加圧ローラ23と、定着ベルト24に対して圧接および離間可能に設けられるとともに、定着ベルト24と圧接する状態で定着ベルト24の表面を摺擦する研磨部材26と、を備え、ニップ部Nに未定着トナー像Tを担持した記録媒体Pを搬送して、該未定着トナー像Tを記録媒体Pに定着する定着装置20において、研磨部材26を定着ベルト24に圧接させる前の離間状態において、研磨部材26を、該研磨部材26が定着ベルト24と圧接する位置において、定着ベルト24の搬送方向と同方向となる回転方向に予備回転させ、該予備回転状態で研磨部材26を定着ベルト24に圧接させた後に、研磨部材26の回転数を変化させる。【選択図】図2
摘要翻译：要解决的问题：为了实现固定构件的高度稳定的摩擦操作。解决方案：定影装置20包括定影带24，加压辊23和抛光构件26，其可以被压力接触和分离定影带24对定影带24的表面进行抛光，与定影带24压力接触。定影装置20将携带未定影调色剂图像T的记录介质P传送到夹持部分N中，并将未定影的调色剂图像 T与记录介质P分离。与定影带24不接触的分离的抛光构件26在与定影带24的输送方向相同的方向上预先旋转在抛光构件26 与定影带24压力接触，并且预先旋转的抛光构件26与定影带24压力接触。此后，抛光构件26的旋转速度改变。

3. 发明专利

JP2014153682A 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：JP2014153682A
公开(公告)日：2014-08-25
申请号：JP2013026018
申请日：2013-02-13
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TOKUDA TETSUO , SUZUKI NAOTO , UENO SATOSHI , UTSUNOMIYA KOICHI , HIROSE FUMIHIRO
IPC分类号： G03G15/20
摘要： PROBLEM TO BE SOLVED: To provide a fixing device which uses a heater short in an axial direction and in which even in long-term heat storage rotation, temperature in the axial direction is made uniform and electric power energy during paper passage can be concentrated only on a paper passage area.SOLUTION: A fixing device 1 comprises: a heating roller 14 heated by one heating means 15; a fixing belt 13 stretched by a fixing roller 11; temperature detection means 16; an energization control part controlling an energization ratio to fixing means; a pressure roller 12; pressure levers 20 and 21; a driving source; cooling means for cooling the pressure roller 12 and the fixing roller 11; and a cooling means control part controlling the air quantity of the cooling means by control. When the energization ratio to the fixing means is less than A%, a control value is increased by the cooling means control part, to increase the air quantity, so that the energization ratio is A% or more. When the energization ratio to the fixing means is A% or more, the control value is decreased by the cooling means control part, to decrease the air quantity.
摘要翻译：要解决的问题：提供一种使用轴向短路的加热器的定影装置，即使在长期的蓄热旋转中，轴向温度均匀，纸张通过时的电力能量只能集中在纸张通过区域上。解决方案：定影装置1包括：由一个加热装置15加热的加热辊14; 由定影辊11拉伸的定影带13; 温度检测装置16; 通电控制部，其将通电率控制为固定装置; 加压辊12; 压力杆20和21; 一个驱动源; 用于冷却加压辊12和定影辊11的冷却装置; 以及通过控制来控制冷却装置的空气量的冷却装置控制部。当与定影装置的通电比小于A％时，通过冷却装置控制部分增加控制值，以增加空气量，使得通电率为A％以上。当与定影装置的通电比为A％以上时，通过冷却装置控制部降低控制值，降低空气量。

4. 发明专利

JP2014134656A Heat fixing device, and image forming apparatus 审中-公开
标题翻译：热固定装置和图像形成装置
公开(公告)号：JP2014134656A
公开(公告)日：2014-07-24
申请号：JP2013002449
申请日：2013-01-10
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SAKAMAKI TAKASHI , OKAMOTO MASAMI , OKAMOTO JUN , SUZUKI NAOTO , WATANABE YOHEI , HIROSE FUMIHIRO , TOKUDA TETSUO , YAMANO MOTOYOSHI
IPC分类号： G03G15/20
摘要： PROBLEM TO BE SOLVED: To provide a heat fixing device capable of holding the surface quality of a fixing member for a long period to prevent the occurrence of image defects.SOLUTION: A heat fixing device includes: a fixing member that is brought into contact, on the surface, with a recording medium and an unfixed toner carried on the recording medium to heat-fix the unfixed toner onto the recording medium; and a rubbing member that is rotationally driven to rub the surface to maintain the surface quality of the fixing member. The heat fixing device further includes a cleaning member having a brush part that rubs to clean the surface of the rubbing member.
摘要翻译：要解决的问题：提供一种能够长时间保持定影构件的表面质量以防止图像缺陷的发热的热定影装置。解决方案：一种热定影装置，包括：固定构件，其接触，表面上具有记录介质和承载在记录介质上的未定影调色剂以将未定影的调色剂热固定到记录介质上; 以及被旋转驱动以摩擦表面以保持固定构件的表面质量的摩擦构件。热定影装置还包括清洁构件，其具有摩擦擦拭摩擦构件的表面的刷部。

5. 发明专利

JP2014021337A 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：JP2014021337A
公开(公告)日：2014-02-03
申请号：JP2012160871
申请日：2012-07-19
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SAKAMAKI TAKASHI , OKAMOTO JUN , SUZUKI NAOTO , UENO SATOSHI , HIROSE FUMIHIRO , TOKUDA TETSUO , YAMANO MOTOYOSHI
IPC分类号： G03G15/20
摘要： PROBLEM TO BE SOLVED: To provide a fixing device configured to move a separation plate cleaning member disposed in a separation plate forward and backward in a longitudinal direction of the separation plate, to remove a foreign matter such as toner deposited on the separation plate, paper dust or carrier, thereby preventing an abnormal image with stain or vertical stripes, and to provide an image forming device.SOLUTION: A fixing device has a function of conveying a recording medium P with unfixed toner carried thereon to a nip part n formed by a rotating fixing member 81 with heating mean 831 and a rotating pressure member 83 pressed by the fixing member, to fix a toner image on the recording medium. The fixing device includes: a separation plate 41 for separating the recording medium to be conveyed from the nip part from the fixing member; a separation plate cleaning member 43 disposed at one longitudinal end of the separation plate 41; a separation plate cleaning member operation mechanism 44 for moving the separation plate cleaning member forward and backward in a longitudinal direction of the separation plate; and control means 90 for controlling motion of the separation plate cleaning member at a predetermined timing via the separation plate cleaning member operation mechanism.
摘要翻译：要解决的问题：提供一种定影装置，其被配置为沿分隔板的纵向向前和向后移动分隔板清洁部件，以去除沉积在分离板上的诸如调色剂的异物，纸灰尘或载体，从而防止带有污迹或垂直条纹的异常图像，并提供图像形成装置。解决方案：定影装置具有将携带有未定影调色剂的记录介质P输送到由旋转固定构件81的加热平均值为831，旋转压力构件83被固定构件按压，以将调色剂图像定影在记录介质上。定影装置包括：分离板41，用于将要从夹持部传送的记录介质从固定部件分离; 设置在分离板41的一个纵向端部的分离板清洁部件43; 分离板清洁部件操作机构44，用于沿着分离板的纵向方向前后移动分离板清洁部件; 以及用于经由分离板清洁部件操作机构在预定的时刻控制分离板清洁部件的运动的控制装置90。

6. 发明专利

JP2014016445A 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：JP2014016445A
公开(公告)日：2014-01-30
申请号：JP2012153309
申请日：2012-07-09
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YAMANO MOTOYOSHI , TOKUDA TETSUO , SAKAMAKI TAKASHI , OKAMOTO JUN , UENO TOMOSHI , SUZUKI NAOTO , HIROSE FUMIHIRO
IPC分类号： G03G15/20
摘要： PROBLEM TO BE SOLVED: To obtain an appropriate temperature distribution in a width direction of a recording medium.SOLUTION: A fixing device 20 includes a heating roller 21 heated by induction heating means 30, a fixing roller 22, a fixing belt 24 stretched on the heating roller 21 and the fixing roller 22, and a pressurizing roller 23 forming a nip between itself and the fixing roller 22. The induction heating means 30 includes: a plurality of exciting coils 31a, 31b that are concentric to each other and have different lengths in an axial direction of the heating roller 21; a resonance circuit 35 for supplying an alternating current to the exciting coils 31a, 31b; and a switching circuit 34 for switching a connection state between the resonance circuit 35 and one exciting coil of the plurality of exciting coils 31a, 31b.
摘要翻译：要解决的问题：为了获得在记录介质的宽度方向上的适当的温度分布。解决方案：定影装置20包括由感应加热装置30加热的加热辊21，定影辊22，在加热辊21和定影辊22以及在其自身和定影辊22之间形成辊隙的加压辊23.感应加热装置30包括：多个彼此同心且具有不同长度的激励线圈31a，31b 在加热辊21的轴向上; 用于向励磁线圈31a，31b提供交流电的谐振电路35; 以及用于切换谐振电路35与多个励磁线圈31a，31b的一个励磁线圈之间的连接状态的开关电路34。

7. 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

8. 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

9. 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

10. 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

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