公开(公告)号：US20090208252A1

公开(公告)日：2009-08-20

申请号：US12320760

申请日：2009-02-04

申请人： Shuuichi Nakagawa ,  Ryuji Inoue ,  Shin Murayama ,  Kazushige Ohnishi ,  Shintaro Yamada

发明人： Shuuichi Nakagawa ,  Ryuji Inoue ,  Shin Murayama ,  Kazushige Ohnishi ,  Shintaro Yamada

IPC分类号： G03G15/08

CPC分类号： G03G15/0808 ,  G03G2215/0634

摘要： A developing device that can reliably supply toner from a toner supply roller to a developing roller and that does not generate scraping irregularities in the toner thin layer on the developing roller, and a process cartridge and an image forming apparatus having the same. The developing device has: a toner supply chamber; a developing roller provided in the toner supply chamber; a toner supply roller provided in the toner supply chamber for supplying toner to the developing roller; and a layer regulation member for forming the toner on the developing roller into a thin layer, and develops electrostatic latent images on an image carrier by applying bias voltage to the developing roller. An intermediate contact member is interposed between the developing roller and the toner supply roller. The intermediate contact member is a sheet member fixed at one end, and the free end of the sheet member is interposed between the developing roller and the toner supply roller, with the free end side protruding therebetween.

摘要翻译： 一种能够将调色剂从调色剂供应辊可靠地供应到显影辊并且不会在显影辊上的调色剂薄层中产生刮擦不规则的显影装置，以及具有该调色剂薄膜的处理盒和图像形成装置。 显影装置具有：调色剂供给室; 设置在调色剂供给室中的显影辊; 调色剂供应辊，设置在调色剂供应室中，用于向显影辊供应调色剂; 以及用于将显影辊上的调色剂形成薄层的层调节构件，并通过向显影辊施加偏置电压来在图像载体上显影静电潜像。 中间接触构件介于显影辊和调色剂供应辊之间。 中间接触构件是固定在一端的片状构件，片状构件的自由端介于显影辊和调色剂供应辊之间，其中自由端侧突出。

公开(公告)号：US07890033B2

公开(公告)日：2011-02-15

申请号：US11965198

申请日：2007-12-27

申请人： Shin Murayama ,  Shuuichi Nakagawa ,  Ryuji Inoue ,  Shintaro Yamada

发明人： Shin Murayama ,  Shuuichi Nakagawa ,  Ryuji Inoue ,  Shintaro Yamada

IPC分类号： G03G15/08

CPC分类号： G03G15/0887 ,  G03G15/0889

摘要： A developing device that prevents the formation of agglomerated masses of developing agent in the bottom of the developing agent housing chamber near the developing roller and the supply roller, and that maintains the fluidity of the developing agent in the bottom of the developing agent housing chamber, while minimizing any increase in size of the developing device. The developing device includes an agitator disposed higher than the developing roller, the regulating blade, and the supply roller, and that agitates a non-magnetic one component developing agent within the developing agent housing chamber; and a developing agent ingress prevention member disposed higher than the supply roller, and lower than the agitator, and the side surface or edge portion of the developing agent ingress prevention member near the developing roller is higher than the topmost point of the supply roller, and lower than the lowermost point of the regulating nip formed by the contact of the developing roller and the regulating blade.

摘要翻译： 一种显影装置，其防止在显影辊和供给辊附近的显影剂容纳室的底部形成团聚的显影剂，并且保持显影剂在显影剂容纳室底部的流动性， 同时最小化显影装置的尺寸的任何增加。 显影装置包括设置在显影辊，调节刮板和供应辊上方的搅拌器，并且搅拌显影剂容纳室内的非磁性单一成分显影剂; 以及设置在供给辊以上且低于搅拌器的显影剂入口防止部件，显影剂抵接部件的靠近显影辊的侧面或边缘部分高于供给辊的最高点，并且 低于由显影辊和调节叶片的接触形成的调节压区的最低点。

公开(公告)号：US07831182B2

公开(公告)日：2010-11-09

申请号：US12099525

申请日：2008-04-08

申请人： Rumi Konishi ,  Kenji Asuwa ,  Yoshiko Ogawa ,  Shuuichi Nakagawa ,  Ryuji Inoue ,  Shin Murayama ,  Kazushige Oonishi ,  Shintaro Yamada

发明人： Rumi Konishi ,  Kenji Asuwa ,  Yoshiko Ogawa ,  Shuuichi Nakagawa ,  Ryuji Inoue ,  Shin Murayama ,  Kazushige Oonishi ,  Shintaro Yamada

IPC分类号： G03G15/08

CPC分类号： G03G15/55 ,  G03G15/0806

摘要： A disclosed developing device includes a developing roller; a supply roller that is in contact with the developing roller and configured to supply toner to the developing roller; a current measuring unit configured to measure an electric current that flows from the developing roller to the supply roller when the toner is supplied from the supply roller to the developing roller; and an error determining unit configured to detect a development error of the developing roller based on the electric current measured by the current measuring unit.

摘要翻译： 所公开的显影装置包括显影辊; 供应辊，其与所述显影辊接触并且构造成向所述显影辊供应调色剂; 电流测量单元，被配置为当将调色剂从供给辊供应到显影辊时，测量从显影辊流向供给辊的电流; 以及误差确定单元，被配置为基于由所述电流测量单元测量的电流来检测所述显影辊的显影误差。

公开(公告)号：US07676184B2

公开(公告)日：2010-03-09

申请号：US11948287

申请日：2007-11-30

申请人： Shin Murayama ,  Shuuichi Nakagawa ,  Ryuji Inoue ,  Yuji Nagatomo ,  Shintaro Yamada ,  Kazushige Oonishi ,  Hirobumi Ooyoshi ,  Tomofumi Yoshida

发明人： Shin Murayama ,  Shuuichi Nakagawa ,  Ryuji Inoue ,  Yuji Nagatomo ,  Shintaro Yamada ,  Kazushige Oonishi ,  Hirobumi Ooyoshi ,  Tomofumi Yoshida

IPC分类号： G03G15/08

CPC分类号： G03G15/0877 ,  G03G2215/0132 ,  G03G2215/083

摘要： A developing apparatus is disclosed that includes a developer carrier for carrying a developer used for developing a latent image, a developer supplying chamber having a developer supplying member for supplying the developer to the developer carrier by rotation, a developer storing chamber positioned above the developer supplying chamber for storing the developer and supplying the developer to the developer supplying chamber, and a partitioning member positioned between the developer supplying chamber and the developer storing chamber. The partitioning member has an opening through which the developer is supplied from the developer storing chamber to the developer supplying chamber. The developing apparatus includes a conveying member positioned above the partitioning member for conveying the developer in a substantially horizontal direction. The conveying member has an opening facing part situated directly above the opening for conveying the developer with less force than the other parts of the conveying member.

摘要翻译： 公开了一种显影装置，其包括用于承载用于显影潜像的显影剂的显影剂载体，具有用于通过旋转将显影剂供应到显影剂载体的显影剂供给部件的显影剂供给室，位于显影剂供给 用于存储显影剂并将显影剂供应到显影剂供应室的腔室，以及定位在显影剂供应室和显影剂储存室之间的分隔件。 分隔构件具有开口，显影剂从显影剂从显影剂储存室供应到显影剂供应室。 显影装置包括位于分隔构件上方的输送构件，用于沿大致水平的方向输送显影剂。 传送构件具有面向开口的正面上方的开口，用于以比输送构件的其它部分更少的力传送显影剂。

公开(公告)号：US07945195B2

公开(公告)日：2011-05-17

申请号：US11947369

申请日：2007-11-29

申请人： Ryuji Inoue ,  Shuuichi Nakagawa ,  Shin Murayama ,  Rumi Konishi ,  Shintaro Yamada ,  Kazushige Oonishi

发明人： Ryuji Inoue ,  Shuuichi Nakagawa ,  Shin Murayama ,  Rumi Konishi ,  Shintaro Yamada ,  Kazushige Oonishi

IPC分类号： G03G15/08

CPC分类号： G03G15/0812

摘要： A developer regulating member capable of stably regulating the thickness of a developer even when used for a long time, while preventing the increase in the production cost, a developing device having the developer regulating member, an image forming apparatus having the developing device, a process cartridge, and a method of producing the developer regulating member. The average crystal particle diameter D [μm] of a plate-like member provided in a layer-thinning blade which functions as the developer regulating member and which abuts against a developing roller functioning as a developer carrier, and the curvature radius R [μm] of a bent portion satisfy the relationship of D≦60.53×R×10−3−12.61.

摘要翻译： 即使长时间使用也能够稳定地调节显影剂的厚度，同时防止制造成本的增加，具有显影剂调节部件的显影装置，具有显影装置的图像形成装置的显影剂调节部件， 墨盒，以及制造显影剂调节件的方法。 设置在用作显影剂调节构件并与用作显影剂载体的显影辊邻接的薄层叶片中的板状构件的平均晶粒直径D [μm]，并且曲率半径R [μm] 弯曲部分满足D＆NlE; 60.53×R×10-3-12.61的关系。

公开(公告)号：US20080280225A1

公开(公告)日：2008-11-13

申请号：US12110659

申请日：2008-04-28

申请人： Rumi KONISHI ,  Shuuichi Nakagawa ,  Ryuji Inoue ,  Shin Murayama ,  Kazushige Oonishi ,  Shintaro Yamada

发明人： Rumi KONISHI ,  Shuuichi Nakagawa ,  Ryuji Inoue ,  Shin Murayama ,  Kazushige Oonishi ,  Shintaro Yamada

IPC分类号： G03G13/06 ,  G03G15/08

CPC分类号： G03G15/0806 ,  G03G15/0856 ,  G03G15/5041 ,  G03G2215/0634 ,  G03G2215/0888 ,  G03G2221/0005

摘要： An image developing method is disclosed that is able to efficiently remove degraded toner on a developing agent carrier, prevent formation of abnormal images, ensure good image quality over time, and increase the service life of the device. The developing method includes a step of calculating an amount of consumption of the developing agent during image formation and an amount of consumption of the developing agent in a compulsory toner consumption mode under different calculation conditions between the image formation and the compulsory toner consumption mode. In the compulsory toner consumption mode, a developing bias different from a developing bias used during image formation is applied for a predetermined time period to discharge residual developing agent on a developing agent carrier to a latent image carrier.

摘要翻译： 公开了能够有效地去除显影剂载体上的降解调色剂的图像显影方法，防止异常图像的形成，确保随时间的良好图像质量，并且增加设备的使用寿命。 显影方法包括在图像形成和强制性调色剂消耗模式之间的不同计算条件下计算图像形成期间显影剂的消耗量和显影剂在强制性调色剂消耗模式中的消耗量的步骤。 在强制性调色剂消耗模式中，在图像形成期间施加与显影偏压不同的显影偏压预定时间段，以将显影剂载体上的残留显影剂排放到潜像载体上。

公开(公告)号：US20080267641A1

公开(公告)日：2008-10-30

申请号：US12099525

申请日：2008-04-08

申请人： Rumi Konishi ,  Kenji Asuwa ,  Yoshiko Ogawa ,  Shuuichi Nakagawa ,  Ryuji Inoue ,  Shin Murayama ,  Kazushige Oonishi ,  Shintaro Yamada

发明人： Rumi Konishi ,  Kenji Asuwa ,  Yoshiko Ogawa ,  Shuuichi Nakagawa ,  Ryuji Inoue ,  Shin Murayama ,  Kazushige Oonishi ,  Shintaro Yamada

IPC分类号： G03G15/08

CPC分类号： G03G15/55 ,  G03G15/0806

摘要： A disclosed developing device includes a developing roller; a supply roller that is in contact with the developing roller and configured to supply toner to the developing roller; a current measuring unit configured to measure an electric current that flows from the developing roller to the supply roller when the toner is supplied from the supply roller to the developing roller; and an error determining unit configured to detect a development error of the developing roller based on the electric current measured by the current measuring unit.

摘要翻译： 所公开的显影装置包括显影辊; 供应辊，其与所述显影辊接触并且构造成向所述显影辊供应调色剂; 电流测量单元，被配置为当将调色剂从供给辊供应到显影辊时，测量从显影辊流向供给辊的电流; 以及误差确定单元，被配置为基于由所述电流测量单元测量的电流来检测所述显影辊的显影误差。

公开(公告)号：US20080175626A1

公开(公告)日：2008-07-24

申请号：US11965198

申请日：2007-12-27

申请人： Shin Murayama ,  Shuuichi Nakagawa ,  Ryuji Inoue ,  Shintaro Yamada

发明人： Shin Murayama ,  Shuuichi Nakagawa ,  Ryuji Inoue ,  Shintaro Yamada

IPC分类号： G03G15/08

CPC分类号： G03G15/0887 ,  G03G15/0889

摘要： A developing device that prevents the formation of agglomerated masses of developing agent in the bottom of the developing agent housing chamber near the developing roller and the supply roller, and that maintains the fluidity of the developing agent in the bottom of the developing agent housing chamber, while minimizing any increase in size of the developing device. The developing device includes an agitator disposed higher than the developing roller, the regulating blade, and the supply roller, and that agitates a non-magnetic one component developing agent within the developing agent housing chamber; and a developing agent ingress prevention member disposed higher than the supply roller, and lower than the agitator, and the side surface or edge portion of the developing agent ingress prevention member near the developing roller is higher than the topmost point of the supply roller, and lower than the lowermost point of the regulating nip formed by the contact of the developing roller and the regulating blade.

摘要翻译： 一种显影装置，其防止在显影辊和供给辊附近的显影剂容纳室的底部形成团聚的显影剂，并且保持显影剂在显影剂容纳室底部的流动性， 同时最小化显影装置的尺寸的任何增加。 显影装置包括设置在显影辊，调节刮板和供应辊上方的搅拌器，并且搅拌显影剂容纳室内的非磁性单一成分显影剂; 以及设置在供给辊以上且低于搅拌器的显影剂入口防止部件，显影剂抵接部件的靠近显影辊的侧面或边缘部分高于供给辊的最高点，并且 低于由显影辊和调节叶片的接触形成的调节压区的最低点。

公开(公告)号：US07680443B2

公开(公告)日：2010-03-16

申请号：US11673221

申请日：2007-02-09

申请人： Shin Murayama ,  Shuuichi Nakagawa ,  Ryuji Inoue ,  Shintaro Yamada

发明人： Shin Murayama ,  Shuuichi Nakagawa ,  Ryuji Inoue ,  Shintaro Yamada

IPC分类号： G03G15/08

CPC分类号： G03G15/0808

摘要： A developing device is provided with which the increase in torque of a supply roller, unevenness of image density, and wear to the supply roller caused by the formation of an aggregated block of toner in the gap between the supply roller and the opposing side wall of a supply developer holding chamber can be suppressed. This developing device comprises a developing roller for developing an electrostatic latent image supported on a photoconductive member, a supply developer holding chamber for holding toner to be supplied to the developing roller, a supply roller for supplying the toner supported on the peripheral face thereof to the developing roller, a hopper that is disposed above the supply developer holding chamber and used to hold toner for replenishing the supply developer holding chamber, and a communication opening for allowing the hopper to communicate with the supply agent holding chamber, wherein a canopy member is provided directly above the gap to impede the advance of the toner on the supply roller into the gap between the supply roller and the opposing side wall of the supply developer holding chamber.

摘要翻译： 提供了一种显影装置，其中供应辊的扭矩增加，图像密度的不均匀性以及由供应辊和相对的侧壁之间的间隙中形成聚集的调色剂块而导致的供应辊的磨损 可以抑制供应显影剂保持室。 该显影装置包括用于显影负载在感光体上的静电潜像的显影辊，用于保持供给到显影辊的调色剂的供给显影剂保持室，供给辊，用于将支撑在其外周面上的调色剂供给到 显影辊，设置在供应显影剂保持室上方并用于保持用于补充供给显影剂保持室的调色剂的料斗;以及用于允许料斗与供应剂容纳室连通的连通开口，其中设置有顶盖构件 直接在间隙上方阻止供给辊上的调色剂进入供给辊和供给显影剂保持室的相对侧壁之间的间隙。

公开(公告)号：US20080131174A1

公开(公告)日：2008-06-05

申请号：US11947369

申请日：2007-11-29

申请人： Ryuji INOUE ,  Shuuichi Nakagawa ,  Shin Murayama ,  Rumi Konishi ,  Shintaro Yamada ,  Kazushige Oonishi

发明人： Ryuji INOUE ,  Shuuichi Nakagawa ,  Shin Murayama ,  Rumi Konishi ,  Shintaro Yamada ,  Kazushige Oonishi

IPC分类号： G03G15/08

CPC分类号： G03G15/0812

摘要： A developer regulating member capable of stably regulating the thickness of a developer even when used for a long time, while preventing the increase in the production cost, a developing device having the developer regulating member, an image forming apparatus having the developing device, a process cartridge, and a method of producing the developer regulating member. The average crystal particle diameter D [μm] of a plate-like member provided in a layer-thinning blade which functions as the developer regulating member and which abuts against a developing roller functioning as a developer carrier, and the curvature radius R [μm] of a bent portion satisfy the relationship of D≦60.53×R×10−3−12.61.

摘要翻译： 即使长时间使用也能够稳定地调节显影剂的厚度，同时防止制造成本的增加，具有显影剂调节部件的显影装置，具有显影装置的图像形成装置的显影剂调节部件， 墨盒，以及制造显影剂调节件的方法。 设置在用作显影剂调节构件并与用作显影剂载体的显影辊邻接的薄层叶片中的板状构件的平均晶粒直径D [μm]，曲率半径R [mum] 的弯曲部分满足D <= 60.53×R×10 -3 -12.61的关系。