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公开(公告)号：EP2426561B1
公开(公告)日：2020-02-19
申请号：EP11179281.8
申请日：2011-08-30
申请人： Ricoh Company, Ltd.
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2.发明公开Magnetic carrier, two-component developer, development method, development device and image forming apparatus of electrophotography 审中-公开磁性载体，双组分显影剂，显影方法，图像制作显影装置和电子照相设备
公开(公告)号：EP1434104A2
公开(公告)日：2004-06-30
申请号：EP03029279.1
申请日：2003-12-22
申请人： Ricoh Company Ltd.
发明人： Enoki, Shigekazu , Ariizumi, Osamu , Kurosu, Hisao , Namekata, Shinichi , Ozeki, Takamasa , Maruta, Takayuki , Yoneda, Takuji
摘要： A two-component developer including toner and magnetic carriers is provided. The two-component developer is
characterized in that when a development device including a developer bearing member bearing the two-component developer is operated under a development condition of an image forming apparatus using a quasi photoconductor in which a layer of tetrafluoroethylene resin is provided to a conductive material in 10µm thick, the number of times of light emission occurring in a magnetic brush formed on the developer bearing member due to partial conduction in the magnetic brush is 10 times or less per second at an observation cross section that is perpendicular relative to a rotation axis of the developer bearing member.摘要翻译： 一种双组分显影剂包括调色剂和磁性载体被提供。 的双组分显影剂的特征在于DASS当显影装置包括显影剂承载部件承载的双组分显影剂被使用准感光体在哪个四氟乙烯树脂制成的层被提供给图像形成装置的显影条件下操作 导电材料10微米厚时，由于在磁刷偏导通在形成于所述显影剂承载部件的磁刷发生的光发射的次数是在观察截面做10次或每秒少在相对于垂直 到显影剂承载构件的旋转轴线。
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3.发明公开Image forming apparatus with a two-component type developer 有权Bilderzeugungsgerätmit einem Zwei-Komponenten Entwickler
公开(公告)号：EP1333337A3
公开(公告)日：2003-10-08
申请号：EP03002142.2
申请日：2003-01-31
申请人： Ricoh Company, Ltd.
发明人： Ozeki, Takamasa , Azami, Akira
CPC分类号： G03G9/113 , G03G9/1139 , G03G15/0928 , G03G2215/0609
摘要： A developing method of the present invention is practicable with a developing unit (1) of the type including a rotatable, nonmagnetic sleeve (7) and a rigid metering member (9). A two ingredient type developer made up of magnetic carrier grains and toner grains is magnetically deposited on the sleeve (7). The metering member (9) meters the amount of the developer deposited on the sleeve (7). The sleeve (7) has surface roughness Rz ranging from 5 µm to 20 µm. The carrier grains each are covered with a coating layer containing at least binder resin and grains. The ratio of the diameter D of the individual grain contained in the coating layer to the thickness h of the binder resin layer lies in the range of 1
摘要翻译： 本发明的显影方法可用于包括可旋转的非磁性套筒（7）和刚性计量构件（9）的类型的显影单元（1）。 由磁性载体颗粒和调色剂颗粒组成的两种成分型显影剂磁性沉积在套筒（7）上。 计量构件（9）对沉积在套筒（7）上的显影剂的量进行计量。 套筒（7）的表面粗糙度Rz为5〜20μm。 载体颗粒各自用至少含有粘合剂树脂和颗粒的涂层覆盖。 涂层中所含的单个颗粒的直径D与粘合剂树脂层的厚度h的比例在1
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公开(公告)号：EP2804050B1
公开(公告)日：2019-03-27
申请号：EP14167343.4
申请日：2014-05-07
申请人： Ricoh Company, Ltd.
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公开(公告)号：EP1333337A2
公开(公告)日：2003-08-06
申请号：EP03002142.2
申请日：2003-01-31
申请人： Ricoh Company, Ltd.
发明人： Ozeki, Takamasa , Azami, Akira
CPC分类号： G03G9/113 , G03G9/1139 , G03G15/0928 , G03G2215/0609
摘要： A developing method of the present invention is practicable with a developing unit (1) of the type including a rotatable, nonmagnetic sleeve (7) and a rigid metering member (9). A two ingredient type developer made up of magnetic carrier grains and toner grains is magnetically deposited on the sleeve (7). The metering member (9) meters the amount of the developer deposited on the sleeve (7). The sleeve (7) has surface roughness Rz ranging from 5 µm to 20 µm. The carrier grains each are covered with a coating layer containing at least binder resin and grains. The ratio of the diameter D of the individual grain contained in the coating layer to the thickness h of the binder resin layer lies in the range of 1
摘要翻译： 本发明的显影方法对于包括可旋转的非磁性套筒（7）和刚性计量构件（9）的显影单元（1）是可行的。 由磁性载体颗粒和调色剂颗粒构成的两种成分型显影剂磁性沉积在套筒（7）上。 计量构件（9）测量沉积在套筒（7）上的显影剂的量。 套筒（7）具有5μm至20μm的表面粗糙度Rz。 载体颗粒各自覆盖有至少含有粘合剂树脂和颗粒的涂层。 包含在涂层中的单个颗粒的直径D与粘合剂树脂层的厚度h之比在1
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公开(公告)号：EP2804050A3
公开(公告)日：2018-01-24
申请号：EP14167343.4
申请日：2014-05-07
申请人： Ricoh Company, Ltd.
发明人： Urayama, Taichi , Yoshida, Ryuji , Takahashi, Tomoko , Hoshi, Shotaro , Sugiyama, Hiroyuki , Mase, Ryusuke , Shakuto, Masahiko , Ozeki, Takamasa , Zemba, Hideki , Nakagawa, Yoshinori
CPC分类号： G03G15/0849 , G03G15/065 , G03G15/5054 , G03G15/5058 , G03G2215/0607
摘要： An image forming apparatus (100) includes a latent image carrier (2) to carry a latent image, a developing device (5) to develop the latent image with toner to form a toner image on the latent image carrier (2), a transfer unit (6) to transfer the toner image onto a recording medium, and a controller (30). The controller (30) executes an image density adjustment control of adjusting a developing bias to obtain a target image density, and further executes a forced toner consumption control of forcibly consuming the toner contained in the developing device (5) by attaching the toner to the latent image carrier (2) to form a toner pattern on the surface of the latent image carrier (2). The controller (30) executes the forced toner consumption control to forcibly consume a smaller amount of toner in response to a higher developing bias as adjusted by the image density adjustment control.
摘要翻译： 一种图像形成设备（100）包括：承载潜像的潜像载体（2），用调色剂显影潜像以在潜像承载体（2）上形成调色剂图像的显影装置（5） 单元（6），将调色剂图像转印到记录介质上;以及控制器（30）。 控制器（30）执行调节显影偏压以获得目标图像浓度的图像浓度调节控制，并且还执行强制调色剂消耗控制，强制调色剂消耗控制通过将调色剂附着到显影装置（5）中而强制消耗包含在显影装置 潜像载体（2）以在潜像载体（2）的表面上形成调色剂图案。 响应于通过图像浓度调整控制调整的较高的显影偏压，控制器（30）执行强制调色剂消耗控制以强制消耗较少量的调色剂。
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7.发明公开Development device, process cartridge, and image forming apparatus including same 审中-公开Entwicklungsvorrichtung，Prozesskartusche und Bilderzeugungsvorrichtung damit
公开(公告)号：EP2426561A1
公开(公告)日：2012-03-07
申请号：EP11179281.8
申请日：2011-08-30
申请人： Ricoh Company, Ltd.
发明人： Taguchi, Nobuyuki , Masuda, Katsumi , Ozeki, Takamasa , Satoh, Yuuki , Hayashi, Toshiki , Koetsuka, Kyohta , Kojima, Toshio , Ohsawa, Masayuki , Kamiya, Noriyuki , Terasaka, Takumi
摘要： A development device (113) including a developer container (121), a developer bearer (132), a magnetic field generator (133), a developer agitator (118a) to supply the developer to the developer bearer (132), and a developer regulator (116) to adjust a layer thickness of the developer carried on the developer bearer (132). Multiple oval recesses (139) oblique to the axial direction of the developer bearer (132) are formed in the outer circumferential surface of the developer bearer (132) and arranged in a circumferential direction and the axial direction thereof. An upstream inner wall (139a) of the recess (139) in the rotational direction of the developer bearer (132) applies a force to the developer as the developer bearer (132) rotates, and an angle between a long axis of the recess (139) and the axial direction is set so that the force applied by the upstream inner wall (139a) of the recess (139) has a component in a direction substantially identical to the developer conveyance direction of the developer agitator (118a).
摘要翻译： 一种显影装置（113），包括显影剂容器（121），显影剂载体（132），磁场发生器（133），将显影剂供应到显影剂载体（132）的显影剂搅拌器（118a） 调节器（116）以调节承载在显影剂载体（132）上的显影剂的层厚度。 在显影剂载体（132）的外周面上形成有与显影剂载体（132）的轴向倾斜的多个椭圆形凹部（139），并且沿着圆周方向及其轴向配置。 在显影剂载体（132）的旋转方向上，凹部（139）的上游内壁（139a）在显影剂载体（132）旋转时向显影剂施加力，并且凹部的长轴 139），并且设置轴向方向使得由凹部（139）的上游内壁（139a）施加的力具有与显影剂搅拌器（118a）的显影剂输送方向基本相同的方向的分量。
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8.发明公开Magnetic carrier, two-component developer, development method, development device and image forming apparatus of electrophotography 审中-公开磁性载体，双组分显影剂，显影方法，显影装置和电子照相成像设备
公开(公告)号：EP1434104A3
公开(公告)日：2004-11-17
申请号：EP03029279.1
申请日：2003-12-22
申请人： Ricoh Company Ltd.
发明人： Enoki, Shigekazu , Ariizumi, Osamu , Kurosu, Hisao , Namekata, Shinichi , Ozeki, Takamasa , Maruta, Takayuki , Yoneda, Takuji
摘要： A two-component developer including toner and magnetic carriers is provided. The two-component developer is characterized in that when a development device including a developer bearing member bearing the two-component developer is operated under a development condition of an image forming apparatus using a quasi photoconductor in which a layer of tetrafluoroethylene resin is provided to a conductive material in 10µm thick, the number of times of light emission occurring in a magnetic brush formed on the developer bearing member due to partial conduction in the magnetic brush is 10 times or less per second at an observation cross section that is perpendicular relative to a rotation axis of the developer bearing member.
摘要翻译： 提供包括调色剂和磁性载体的双组分显影剂。 该双组分显影剂的特征在于，当包括承载双组分显影剂的显影剂承载部件的显影装置在使用准光电导体的成像设备的显影条件下操作时，其中四氟乙烯树脂层被提供给 10μm厚的导电材料中，由于磁刷中的部分导电而在显影剂承载部件上形成的磁刷中发生的光发射次数在相对于垂直于磁记录介质的垂直于观察截面的观察截面上为每秒10次或更少 显影剂承载构件的旋转轴线。
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公开(公告)号：EP2804050A2
公开(公告)日：2014-11-19
申请号：EP14167343.4
申请日：2014-05-07
申请人： Ricoh Company, Ltd.
发明人： Urayama, Taichi , Yoshida, Ryuji , Takahashi, Tomoko , Hoshi, Shotaro , Sugiyama, Hiroyuki , Mase, Ryusuke , Shakuto, Masahiko , Ozeki, Takamasa , Zemba, Hideki , Nakagawa, Yoshinori
CPC分类号： G03G15/0849 , G03G15/065 , G03G15/5054 , G03G15/5058 , G03G2215/0607
摘要： An image forming apparatus (100) includes a latent image carrier (2) to carry a latent image, a developing device (5) to develop the latent image with toner to form a toner image on the latent image carrier (2), a transfer unit (6) to transfer the toner image onto a recording medium, and a controller (30). The controller (30) executes an image density adjustment control of adjusting a developing bias to obtain a target image density, and further executes a forced toner consumption control of forcibly consuming the toner contained in the developing device (5) by attaching the toner to the latent image carrier (2) to form a toner pattern on the surface of the latent image carrier (2). The controller (30) executes the forced toner consumption control to forcibly consume a smaller amount of toner in response to a higher developing bias as adjusted by the image density adjustment control.
摘要翻译： 图像形成装置（100）包括用于携带潜像的潜像载体（2），显影装置（5），用调色剂显影潜像以在潜像载体（2）上形成调色剂图像，转印 单元（6）将调色剂图像转印到记录介质上，以及控制器（30）。 控制器（30）执行调整显影偏压以获得目标图像浓度的图像浓度调节控制，并且还执行强制消耗包含在显影装置（5）中的调色剂的强制调色剂消耗控制， 潜像载体（2），以在潜像载体（2）的表面上形成调色剂图案。 控制器（30）执行强制调色剂消耗控制，以响应由图像浓度调节控制调节的较高显影偏压而强制消耗较少量的调色剂。
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公开(公告)号：EP1333337B1
公开(公告)日：2014-07-23
申请号：EP03002142.2
申请日：2003-01-31
申请人： Ricoh Company, Ltd.
发明人： Ozeki, Takamasa , Azami, Akira
CPC分类号： G03G9/113 , G03G9/1139 , G03G15/0928 , G03G2215/0609
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