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公开(公告)号：JP2015035004A
公开(公告)日：2015-02-19
申请号：JP2014232571
申请日：2014-11-17
Applicant: 株式会社リコー , Ricoh Co Ltd
Inventor： SHIMIZU YASUNOBU , HAGA KOKICHI , TAKENAKA TOMOKAZU , OGIYAMA HIROMI , SENGOKU KENJI , FUJITA JUNPEI
IPC: G03G15/16
Abstract: 【課題】転写モード切り替えの際に電流が逆流して誤動作したり電源基板が破損することを防止する。【解決手段】直流電圧による転写バイアスを印加して画像転写を行なう直流転写モードと、直流電圧に交流電圧を重畳した転写バイアスを印加して画像転写を行なう重畳転写モードとを切り替え可能な画像形成装置において、直流転写バイアスを印加するための直流電源201と、重畳転写バイアスを印加するための交流電源202を備え、転写モードを切り替える際に、直流電源201および交流電源202の出力をオフした状態で転写モードを切り替える。【選択図】図5
Abstract translation: 要解决的问题：为了防止电流反向流动，导致电源板的故障和损坏，当切换传送模式时。解决方案：一种图像形成装置，其可以在用于施加转印偏压的DC传输模式之间切换 执行图像传送的DC电压和用于施加通过将AC电压叠加在DC电压上而获得的转印偏压进行图像转印的叠加转印模式，包括：用于施加DC转印偏压的DC电源201和AC 用于施加叠加转印偏压的电源202。 当切换传送模式时，设备在直流电源和交流电源关闭的状态下切换传送模式。
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公开(公告)号：JP2014059488A
公开(公告)日：2014-04-03
申请号：JP2012205044
申请日：2012-09-18
Applicant: Ricoh Co Ltd , 株式会社リコー
Inventor： FUJITA JUNPEI , MINBU RYUICHI , TAKAHASHI YASUSHI , SENGOKU KENJI , ICHIHASHI OSAMU , KATO YUJI
Abstract: PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of maintaining a positional relationship constant between detection means and a detection position of a belt member irrespective of contact/separation operation, even in a configuration in which a positional relationship is changed between holding members of a tension member on the upstream side of the detection position and a tension member on the downstream side of the detection position and a part of the belt member including the detection position, depending on the contact/separation operation.SOLUTION: A copier has a photoreceptor, an intermediate transfer belt 50, contact/separation sliders and roller brackets (702 and the like) that are contact/separation means for contacting and separating the intermediate transfer belt 50 with respect to the photoreceptor, and a sensor bracket 161 that holds a sensor holding member 130 holding a scale sensor that detects scale marks on the intermediate transfer belt 50 and is rotatable around a sensor rotation shaft 162. The copier further includes an upstream roller drive cam 703 and an upstream roller bracket 702 that function as detection means rotation shaft moving means for moving the sensor rotation shaft 162 that is the rotation shaft of the sensor bracket 161 with respect to an apparatus body.
Abstract translation: 要解决的问题：即使在保持构件之间的位置关系改变的构造中，即使在接触/分离操作之间，也能够保持检测装置与带构件的检测位置之间的位置关系恒定的图像形成装置 根据接触/分离操作，检测位置的上游侧的张力构件和检测位置的下游侧的张力构件和包括检测位置的皮带构件的一部分。解决方案：复印机具有 感光体，中间转印带50，接触/分离滑块和辊支架（702等），它们是用于使中间转印带50相对于感光体接触和分离的接触/分离装置，以及传感器支架161，其保持 传感器保持构件130保持检测中间转印带50上的刻度标记的刻度传感器 可绕传感器旋转轴162旋转。复印机还包括上游辊驱动凸轮703和用作检测装置的上游辊支架702，转动轴移动装置用于移动作为传感器支架161的旋转轴的传感器旋转轴162 相对于装置主体。
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公开(公告)号：JP2012194472A
公开(公告)日：2012-10-11
申请号：JP2011059634
申请日：2011-03-17
Applicant: Ricoh Co Ltd , 株式会社リコー
Inventor： SENGOKU KENJI , MINBU RYUICHI , FUJITA JUNPEI , ICHIHASHI OSAMU
Abstract: PROBLEM TO BE SOLVED: To provide a belt tension unit which achieves space saving and facilitates replacement work without causing complication of the configuration.SOLUTION: A belt tension unit 500 is provided in an image formation device body 100 and includes a tension member 501 that abuts on a belt surface 10a of an intermediate transfer belt 10 stretched between a plurality of rollers 14, 15, 16 and rotatively driven, and pressurization means 502 that pressurizes the tension member 501 toward the belt surface 10a. The belt tension unit 500 does not have depressurization means for releasing the pressurized state of the intermediate transfer belt 10 by the tension member 502 and the belt tension unit 500 is detachable from the image formation device body 100 or a belt unit 12 having the intermediate transfer belt 10 at the time of device driving stop.
Abstract translation: 要解决的问题：提供一种实现节省空间并且便于更换工作的带张力单元，而不会引起配置的复杂化。 解决方案：皮带张力单元500设置在图像形成装置主体100中，并且包括张紧构件501，该张力构件501抵靠在多个辊14,15,16和16之间延伸的中间转印带10的带表面10a上 旋转驱动和加压装置502，其将张紧构件501朝向带表面10a加压。 带张力单元500不具有用于通过张力构件502释放中间转印带10的加压状态的减压装置，并且带张力单元500可从图像形成装置主体100或具有中间转印的带单元12拆卸 皮带10在设备驱动停止时。 版权所有（C）2013，JPO＆INPIT
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公开(公告)号：JP2012181439A
公开(公告)日：2012-09-20
申请号：JP2011045459
申请日：2011-03-02
Applicant: Ricoh Co Ltd , 株式会社リコー
Inventor： FUJITA JUNPEI , MINBU RYUICHI , SENGOKU KENJI , ICHIHASHI OSAMU
CPC classification number: G03G15/161 , G03G15/0189 , G03G15/162 , G03G2215/0129
Abstract: PROBLEM TO BE SOLVED: To provide an image forming apparatus that accurately suppresses degradation in image quality due to temperature deviation.SOLUTION: A heater left 64 is disposed inside the loop of an intermediate transfer belt 10 and between a photoreceptor 40Y and a photoreceptor 40M that are adjacent to each other; a heater right 65 is disposed inside the loop of the intermediate transfer belt 10 and between a photoreceptor 40C and a photoreceptor 40K that are adjacent to each other. The intermediate transfer belt 10 moves between the heater left 64, the heater right 65 and the photoreceptors 40. The heater left 64 and the heater right 65 are turned on/off by a thermostat 66.
Abstract translation: 要解决的问题：提供一种能够精确地抑制由于温度偏差导致的图像质量劣化的图像形成装置。 解决方案：加热器64设置在中间转印带10的环中并且彼此相邻的感光体40Y和感光体40M之间; 加热器右侧65设置在中间转印带10的环中并且彼此相邻的感光体40C和感光体40K之间。 中间转印带10在加热器左64，加热器右侧65和感光体40之间移动。加热器64和加热器右侧65通过恒温器66打开/关闭。版权所有（C）2012， JPO＆INPIT
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公开(公告)号：JP2011141314A
公开(公告)日：2011-07-21
申请号：JP2010000367
申请日：2010-01-05
Applicant: Ricoh Co Ltd , 株式会社リコー
Inventor： FUJITA JUNPEI , MINBU RYUICHI , SENGOKU KENJI , ICHIHASHI OSAMU
IPC: G03G15/16
Abstract: PROBLEM TO BE SOLVED: To provide a belt device and an image forming apparatus capable of accurately detecting an object to be detected that is formed on a belt member whose meandering is corrected by a meandering correction roller by a detection means.
SOLUTION: The belt device includes: the detection means 90 which detects the object to be detected that is formed on the belt member 8 tensioned and laid on a plurality of roller members; the meandering correction roller 13 which is one of the plurality of roller members and corrects meandering of the belt member 8 by varying a tilt of a rotary shaft; first supporting members 31A and 31B which support the meandering correction roller 13 at positions of both ends in a rotary shaft direction; and a second supporting member 60 which supports the detection means 90. The second supporting member 60 is positioned with respect to the first supporting members 31A and 31B.
COPYRIGHT: (C)2011,JPO&INPITAbstract translation: 解决的问题：提供一种带式装置和图像形成装置，能够精确地检测形成在通过检测装置的曲折校正辊校正曲面的带构件上的待检测物体。 皮带装置包括：检测装置90，其检测形成在张紧并放置在多个辊构件上的带构件8上的待检测物体; 作为多个辊构件中的一个的曲折校正辊13，通过改变旋转轴的倾斜来校正带构件8的曲折; 第一支撑构件31A和31B，其在旋转轴方向上的两端的位置处支撑曲折校正辊13; 以及支撑检测装置90的第二支撑构件60.第二支撑构件60相对于第一支撑构件31A和31B定位。 版权所有（C）2011，JPO＆INPIT
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Patent Agency Ranking6.发明专利
公开(公告)号：JP2009229750A
公开(公告)日：2009-10-08
申请号：JP2008074439
申请日：2008-03-21
Applicant: Ricoh Co Ltd , 株式会社リコー
Inventor： FUJITA JUNPEI , KAWAGOE KATSUYA , KAMIYAMA HIDEKI , MINBU RYUICHI , SENGOKU KENJI
IPC: G03G15/16
Abstract: PROBLEM TO BE SOLVED: To provide a transfer device capable of stabilizing transfer pressure by reducing irregularity of the transfer pressure by using a weight as a pressing means instead of a spring, and an image forming apparatus comprising the same.
SOLUTION: The transfer device comprises a pressing mechanism including a pressing member 66 having one end part 66a for supporting a transfer member 62 and the other end part 66b for supporting a pressing weight 67, a fulcrum 68 disposed between the transfer member 62 and the weight 67 for serving as the rotation center of the pressing member 66. With the premise that the mass of the transfer member 62 is M, the mass of the weight 67 is W, the distance from the transfer member 62 to the fulcrum 68 is L1, and the distance from the weight 67 to the fulcrum 68 is L2, the pressing member 66 satisfies a relationship M×L1Abstract translation: 要解决的问题：提供一种能够通过使用重物作为压力装置代替弹簧减小转印压力的不规则性而能够稳定转印压力的转印装置，以及包含该转印压力的成像装置。 解决方案：传送装置包括一个按压机构，该按压机构包括一个按压部件66，该按压部件66具有用于支撑转印部件62的一个端部部分66a和用于支撑加压重物67的另一个端部部分66b，设置在转印部件62之间的支点68 以及用作按压构件66的旋转中心的重物67.当传送构件62的质量为M的情况下，重物67的质量为W，从转印构件62到支点68的距离 是L1，从重量67到支点68的距离为L2，按压构件66满足关系M×L1
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公开(公告)号：JP2009053369A
公开(公告)日：2009-03-12
申请号：JP2007218940
申请日：2007-08-24
Applicant: Ricoh Co Ltd , 株式会社リコー
Inventor： ISHII HIROSHI , HORIKAWA SEISHI , KAWAGOE KATSUYA , HAGA KOKICHI , KAMIYAMA HIDEKI , WATANABE YOHEI , SENGOKU KENJI
Abstract: PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of stably cleaning by a belt cleaning means arranged on a more downstream side than a secondary transfer part against change of arrangement and rotation of an intermediate transfer belt while achieving space saving.
SOLUTION: The image forming apparatus has a secondary transfer part N1 equipped with a secondary transfer counter member 18 and a secondary transfer member 22 arranged to be opposed to each other and coming into contact with the inner surface and outer surface of the intermediate transfer belt 10, and secondarily transferring a toner image to transfer material P from the intermediate transfer belt. In the apparatus, a secondary transfer contact/separation means 125 moving the secondary transfer counter member 18 in a withdrawing direction from the secondary transfer member 22 and making the intermediate transfer belt and the secondary transfer member contact with/separate from each other is arranged inside the intermediate transfer belt, the belt cleaning means 20 abutting on the intermediate transfer belt is arranged on the more downstream side in the rotating direction of the intermediate transfer belt than the secondary transfer part, and a backup roller 17 supporting the intermediate transfer belt and holding the abutting state of a cleaning component member and the intermediate transfer belt even when the position of the secondary transfer counter member is displaced by the secondary transfer contact/separation means is arranged inside the intermediate transfer belt.
COPYRIGHT: (C)2009,JPO&INPITAbstract translation: 解决的问题：提供一种图像形成装置，能够通过布置在比二次转印部分的更下游侧的带清洁装置来稳定地清洁，以防止中间转印带的布置和旋转的改变，同时实现节省空间。 解决方案：图像形成装置具有二次转印部分N1，二次转印部分N1配备有二次转印计数部件18和二次转印部件22，该二次转印部件被布置为彼此相对并与中间体的内表面和外表面接触 转印带10，并且二次转印调色剂图像以从中间转印带转印材料P. 在该装置中，将二次转印对置构件18从二次转印构件22向退出方向移动并使中间转印带和二次转印构件彼此接触/分离的二次转印接触/分离装置125布置在 中间转印带，邻接在中间转印带上的带清洁装置20布置在中间转印带的转动方向上比二次转印部更靠下游侧，支撑辊17支撑中间转印带并保持 即使当二次转印对置构件的位置被二次转印接触/分离装置移位时，清洁部件和中间转印带的抵接状态被布置在中间转印带的内部。 版权所有（C）2009，JPO＆INPIT
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公开(公告)号：JP2008286900A
公开(公告)日：2008-11-27
申请号：JP2007130036
申请日：2007-05-16
Applicant: Ricoh Co Ltd , 株式会社リコー
Inventor： SENGOKU KENJI , HORIKAWA SEISHI , KAWAGOE KATSUYA , KAMIYAMA HIDEKI , WATANABE YOHEI , HAGA KOKICHI , ISHII HIROSHI
Abstract: PROBLEM TO BE SOLVED: To provide an image forming apparatus where a uniform lubricant layer is formed on an image carrier, and the transferability and cleanability of toner on the image carrier are satisfactory improved.
SOLUTION: The image forming apparatus is provided with: a first blade 71 cleaning residual toner after transfer in the surface of an intermediate transfer body 10; a coating brush 76 located at the downstream of the first blade, scraping off a solid lubricant 75 and coating the surface of the intermediate transfer body 10 therewith; and a second blade 73 located at the downstream of the coating brush 76 and leveling the lubricant coated on the surface of the intermediate transfer body 10. Provided that the length in the axial direction of the first blade is defined as L1, the length in the axial direction of the coating brush is defined as L2, the length in the axial direction of the solid lubricant is defined as L3 and the length in the axial direction of the second blade is defined as L4, the relation of L1≥L2>L3>L4 is satisfied.
COPYRIGHT: (C)2009,JPO&INPITAbstract translation: 要解决的问题：提供一种在图像载体上形成均匀的润滑剂层的图像形成装置，并且图像载体上的调色剂的转印性和可清洁性令人满意地得到改善。 解决方案：图像形成装置设置有：在中间转印体10的表面中转印后清洁残留调色剂的第一刮刀71; 位于第一叶片下游的涂刷刷76，刮去固体润滑剂75并用其涂覆中间转印体10的表面; 以及位于涂料刷76下游的第二刀片73，并使涂覆在中间转印体10的表面上的润滑剂调平。如果将第一刀片的轴向长度定义为L1，则在 涂层刷的轴向定义为L2，固体润滑剂的轴向长度定义为L3，第二叶片的轴向长度定义为L4，L1≥L2> L3> L4满足 版权所有（C）2009，JPO＆INPIT
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公开(公告)号：JP2008015435A
公开(公告)日：2008-01-24
申请号：JP2006189413
申请日：2006-07-10
Applicant: Ricoh Co Ltd , 株式会社リコー
Inventor： HORIKAWA SEISHI , SENGOKU KENJI , WATANABE YOHEI , KAMIYAMA HIDEKI , KAWAGOE KATSUYA , HAGA KOKICHI , ISHII HIROSHI
Abstract: PROBLEM TO BE SOLVED: To provide an image forming apparatus which effectively avoids occurrence of abnormal images such as vermiculation, image blur and roughness of a transferred image, so that good image transfer can be performed. SOLUTION: The image forming apparatus has a first image carrier which moves endlessly and carries a toner image on a surface thereof, and a second image carrier which moves endlessly and carries the toner image by primary transfer of the toner image on the first image carrier in a position opposite to the first image carrier, wherein the toner image on the second image carrier is secondarily transferred onto a transfer material. The image forming apparatus also has a lubricant applying means (brush roller) 90 to apply a lubricant to a toner image uncarrying area of the surface of at least one of the first image carrier and the second image carrier at a previous stage for carrying the toner image, a cleaning means 103 on an upstream side of the lubrication application position in the traveling direction of an image carrier (intermediate transfer belt) 10, and a lubricant leveling means (lubricant leveling blade) 104 on a downstream side of the lubricant application position. COPYRIGHT: (C)2008,JPO&INPIT
Abstract translation: 要解决的问题：提供一种有效地避免异常图像的发生的图像形成装置，如发生图像的模糊，图像模糊和粗糙，从而可以执行良好的图像传送。 解决方案：图像形成装置具有第一图像载体，该第一图像载体不停地移动并在其表面上承载调色剂图像，以及第二图像载体，其通过在第一个图像上一次转印调色剂图像而不断地移动并携带调色剂图像 图像载体在与第一图像载体相对的位置，其中第二图像载体上的调色剂图像被二次转印到转印材料上。 图像形成装置还具有润滑剂施加装置（刷辊）90，以在前一阶段向第一图像载体和第二图像载体中的至少一个的表面的调色剂图像未承载区域施加润滑剂，用于承载调色剂 图像，在图像载体（中间转印带）10的行进方向上的润滑施加位置的上游侧的清洁装置103以及润滑剂施加位置的下游侧的润滑剂调平装置（润滑剂调平叶片）104 。 版权所有（C）2008，JPO＆INPIT
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公开(公告)号：JP2015007749A
公开(公告)日：2015-01-15
申请号：JP2014041978
申请日：2014-03-04
Applicant: 株式会社リコー , Ricoh Co Ltd
Inventor： SENGOKU KENJI
CPC classification number: B41J11/007
Abstract: 【課題】画像形成装置本体に対してベルト装置を着脱可能に構成した場合であっても、画像形成装置本体に対してベルト装置が歪んで設置されて、ベルト部材の張力の幅方向の偏差が生じて異常画像が発生してしまう不具合などが生じにくい、画像形成装置を提供する。【解決手段】中間転写ベルト装置15(ベルト装置)のユニット側第2フレーム90(第2支持部材)を画像形成装置本体100に固定して支持するように構成して、そのユニット側第2フレーム90に対して中間転写ベルト装置15のユニット側第1フレーム70(第1支持部材)をねじれ方向に変位させて画像形成装置本体100に固定して支持できるように構成している。【選択図】図12
Abstract translation: 要解决的问题：提供一种图像形成装置，其被配置为当带装置倾斜地安装在图像形成装置主体上时防止由于带构件的张力的横向偏离而产生的异常图像，即使带装置是可拆卸的 来自图像形成装置主体。解决方案：中间转印带装置15（带装置）的单元侧第二框架90（第二支撑构件）固定到图像形成装置主体100以用于支撑它。 中间转印带装置15的单位侧第一框架70（第一支撑构件）相对于单位侧第二框架90在偏斜方向上位移，固定在图像形成装置主体100上以进行支撑。
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