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公开(公告)号：US09971298B2
公开(公告)日：2018-05-15
申请号：US15650229
申请日：2017-07-14
发明人： Akihisa Matsukawa , Toshiki Okamura , Kuniaki Tamagaki , Takanori Watanabe , Hiroyoshi Iwayama , Makoto Tokudome , Hideo Kihara , Naoki Hayashi
CPC分类号： G03G21/1814 , G03G21/0011 , G03G21/1676 , G03G21/169 , G03G21/1853
摘要： An image forming apparatus in which a developer bearing member is disposed below a cleaning member, which cleans a charging member, so as to overlap with the cleaning member when viewed in a vertical direction and includes a base body and an elastic layer covering the base body and having a width in a longitudinal direction of the developer bearing member that accommodates the entire region of the cleaning member in the longitudinal direction. In the longitudinal direction, the cleaning member is disposed at a position where the entire region thereof in the longitudinal direction is accommodated in the width of the elastic layer.
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公开(公告)号：US20170075290A1
公开(公告)日：2017-03-16
申请号：US15260619
申请日：2016-09-09
发明人： Takashi Hiramatsu , Motonari Ito , Hideo Kihara
CPC分类号： G03G21/0005 , G03G21/0064
摘要： An image forming apparatus includes a control portion configured to perform a cleaning operation including: a first step of causing a developer, which has a reversed polarity and is attracted to a surface of a charging roller, to have a normal polarity under a state in which the developer bearing member is separated from the image bearing member with the contact/separation unit; and a second step of collecting the developer, which has the normal polarity and is attracted to the surface of the image bearing member, to the developer bearing member, by rotating the image bearing member and the developer bearing member under a state in which the developer bearing member is brought into contact with the image bearing member with the contact/separation unit after performing the first step.
摘要翻译： 图像形成装置包括被配置为执行清洁操作的控制部分，包括：第一步骤，使具有相反极性并被吸引到充电辊的表面的显影剂在其中具有正常极性的状态下 显影剂承载部件与图像承载部件与接触/分离单元分离; 以及第二步骤，通过使图像承载部件和显影剂承载部件在显影剂载体和显影剂承载部件的状态下旋转，将具有正常极性并被吸引到图像承载部件的表面的显影剂收集到显影剂承载部件 在执行第一步骤之后，承载部件与接触/分离单元与图像承载部件接触。
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公开(公告)号：US09323173B2
公开(公告)日：2016-04-26
申请号：US14579992
申请日：2014-12-22
发明人： Hideo Kihara , Motoki Adachi , Shuichi Tetsuno
IPC分类号： G03G15/04 , G03G15/043 , G03G15/00
CPC分类号： G03G15/043 , G03G15/556
摘要： An image forming apparatus includes an image bearing member, a charging apparatus, an exposure apparatus configured to expose the image bearing member charged by the charging apparatus to form an electrostatic latent image, a developing apparatus provided with a developer accommodation section and configured to develop the electrostatic latent image, a signal output unit configured to output a first signal for exposing a printing part of the image bearing member and a second signal for exposing a non-printing part of the image bearing member, a counting apparatus configured to receive the electric signal output from the signal output unit and count the first signals and the second signals, and a calculation apparatus configured to obtain a use amount of the developer by the developing apparatus from count values of the first signals and the second signals counted by the counting apparatus.
摘要翻译： 图像形成装置包括图像承载部件，充电装置，曝光装置，被配置为暴露由充电装置充电的图像承载部件以形成静电潜像;显影装置，具有显影剂容纳部分， 静电潜像，信号输出单元，被配置为输出用于曝光图像承载部件的打印部分的第一信号和用于曝光图像承载部件的非打印部分的第二信号;计数装置，被配置为接收电信号 从信号输出单元输出并对第一信号和第二信号进行计数，以及计算装置，被配置为从计数装置计数的第一信号和第二信号的计数值获得显影装置的显影剂的使用量。
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公开(公告)号：US11061342B2
公开(公告)日：2021-07-13
申请号：US17071103
申请日：2020-10-15
发明人： Noriyoshi Umeda , Tsuneyoshi Tominaga , Shohei Tsuda , Shohei Kototani , Masahiro Kurachi , Kazuhiro Yamauchi , Hideo Kihara
摘要： An electrophotographic apparatus comprising an electrophotographic photosensitive member, a charging device, and a developing device, wherein the charging device comprises a conductive member arranged to be capable of contacting the electrophotographic photosensitive member, a conductive layer on the conductive member outer surface comprises a matrix and a plurality of domains dispersed in the matrix, at least some of the domains are exposed at the conductive member outer surface, the matrix has a volume resistivity of larger than 1.00×1012 Ω·cm and is 1.0×105 times or more one of the domains, the developing device comprises the toner comprising a toner particle, fine particles A and B, the fine particle A has a volume resistivity of 1.0×103 to 1.0×1010 Ω·cm, and the fine particle B is silica fine particle and having a volume resistivity of 1.0×1011 to 1.0×1017 Ω·cm.
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公开(公告)号：US20210116828A1
公开(公告)日：2021-04-22
申请号：US17071103
申请日：2020-10-15
发明人： Noriyoshi Umeda , Tsuneyoshi Tominaga , Shohei Tsuda , Shohei Kototani , Masahiro Kurachi , Kazuhiro Yamauchi , Hideo Kihara
摘要： An electrophotographic apparatus comprising an electrophotographic photosensitive member, a charging device, and a developing device, wherein the charging device comprises a conductive member arranged to be capable of contacting the electrophotographic photosensitive member, a conductive layer on the conductive member outer surface comprises a matrix and a plurality of domains dispersed in the matrix, at least some of the domains are exposed at the conductive member outer surface, the matrix has a volume resistivity of larger than 1.00×1012 Ω·cm and is 1.0×105 times or more one of the domains, the developing device comprises the toner comprising a toner particle, fine particles A and B, the fine particle A has a volume resistivity of 1.0×103 to 1.0×1010 Ω·cm, and the fine particle B is silica fine particle and having a volume resistivity of 1.0×1011 to 1.0×1017 Ω·cm.
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公开(公告)号：US09170525B2
公开(公告)日：2015-10-27
申请号：US14269462
申请日：2014-05-05
发明人： Motoki Adachi , Takuya Kitamura , Hideo Kihara , Kouki Yano , Yuta Isobe
IPC分类号： G03G15/08
CPC分类号： G03G15/0812
摘要： A developing device usable with an image forming apparatus includes a developer carrying member for carrying a developer, a developer accommodating portion for accommodating a developer, and a guiding member having an inclined surface contacting the developer carrying member. The inclined surface guides a developer to a contact portion where the inclined surface contacts the developer carrying member to cause the developer to be carried on the developer carrying member. A regulating member regulates an amount of the developer carried on the developer carrying member. An inclination angle of the inclined surface is in a range not less than an angle of rest of the developer and less than 90 degrees.
摘要翻译： 可用于图像形成装置的显影装置包括用于承载显影剂的显影剂承载构件，用于容纳显影剂的显影剂容纳部分和具有与显影剂承载构件接触的倾斜表面的引导构件。 倾斜表面将显影剂引导到倾斜表面接触显影剂承载构件的接触部分，以使显影剂承载在显影剂承载构件上。 调节构件调节承载在显影剂承载构件上的显影剂的量。 倾斜表面的倾斜角度不小于显影剂的静止角度并且小于90度。
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公开(公告)号：US09069282B2
公开(公告)日：2015-06-30
申请号：US13682960
申请日：2012-11-21
发明人： Yuta Isobe , Hideo Kihara , Takuya Kitamura , Yuji Kawaguchi , Kouki Yano
IPC分类号： G03G15/08
CPC分类号： G03G15/0822 , G03G15/086
摘要： An image forming apparatus includes an image bearing member, a developing device, a holding unit, and a detection device. The image bearing member supports an electrostatic latent image. The developing device includes a developer bearing member having a first electrode member and supporting a developer to develop the electrostatic latent image. The developing device includes a supply member having a second electrode member and supplying the developer to the developer bearing member at a nip portion. The holding unit holds and change the developing device to a first posture and to a second posture where the deposited developer falls off the first posture. The detection device detects a remaining developer amount in the developing device based on a capacitance C1 between the first and second electrode members in the first posture and a capacitance C2 between the first and second electrode members in the second posture.
摘要翻译： 图像形成装置包括图像承载部件，显影装置，保持单元和检测装置。 图像承载部件支撑静电潜像。 显影装置包括具有第一电极构件并支撑显影剂以显影静电潜像的显影剂承载构件。 显影装置包括具有第二电极构件的供给构件，并且在压区部分将显影剂供给到显影剂承载构件。 保持单元将显影装置保持并将其改变为第一姿势和第二姿势，其中沉积的显影剂脱离第一姿势。 检测装置基于第一姿势中的第一和第二电极部件之间的电容C1和第二姿态中的第一和第二电极部件之间的电容C2检测显影装置中的剩余显影剂量。
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公开(公告)号：US20140334854A1
公开(公告)日：2014-11-13
申请号：US14273589
申请日：2014-05-09
发明人： Takuya Kitamura , Motoki Adachi , Hideo Kihara , Kouki Yano , Yuta Isobe
IPC分类号： G03G15/08
CPC分类号： G03G15/0808
摘要： A developing apparatus for developing operation on an image bearing member, includes a rotatable developer carrying member for carrying a developer; a rubbing member for rubbing the developer carrying member with the developer therebetween to cause the developer to be carried on the developer carrying member; wherein the rubbing member includes a free end portion extending toward a downstream with respect to a rotational moving direction of the developer carrying member, the free end portion rubs the developer carrying member, and wherein the rubbing member is provided with a reinforcing portion for reinforcing the free end portion.
摘要翻译： 一种用于在图像承载部件上显影操作的显影装置，包括用于承载显影剂的可旋转的显影剂承载部件; 用于将显影剂承载构件与显影剂摩擦的摩擦构件，以使显影剂承载在显影剂承载构件上; 其特征在于，所述摩擦构件包括相对于所述显影剂承载构件的旋转移动方向向下游延伸的自由端部，所述自由端部摩擦所述显影剂承载构件，并且其中所述摩擦构件设置有用于加强所述显影剂承载构件的加强部 自由端部分。
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公开(公告)号：US20180224799A1
公开(公告)日：2018-08-09
申请号：US15942652
申请日：2018-04-02
发明人： Akihisa Matsukawa , Toshiki Okamura , Kuniaki Tamagaki , Takanori Watanabe , Hiroyoshi Iwayama , Makoto Tokudome , Hideo Kihara , Naoki Hayashi
CPC分类号： G03G21/1814 , G03G15/0258 , G03G21/0011 , G03G21/1676 , G03G21/169 , G03G21/1853
摘要： An image forming apparatus in which a developer bearing member is disposed below a cleaning member, which cleans a charging member, so as to overlap with the cleaning member when viewed in a vertical direction and includes a base body and an elastic layer covering the base body and having a width in a longitudinal direction of the developer bearing member that accommodates the entire region of the cleaning member in the longitudinal direction. In the longitudinal direction, the cleaning member is disposed at a position where the entire region thereof in the longitudinal direction is accommodated in the width of the elastic layer.
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公开(公告)号：US20130164001A1
公开(公告)日：2013-06-27
申请号：US13682960
申请日：2012-11-21
发明人： Yuta Isobe , Hideo Kihara , Takuya Kitamura , Yuji Kawaguchi , Kouki Yano
IPC分类号： G03G15/08
CPC分类号： G03G15/0822 , G03G15/086
摘要： An image forming apparatus includes an image bearing member, a developing device, a holding unit, and a detection device. The image bearing member supports an electrostatic latent image. The developing device includes a developer bearing member having a first electrode member and supporting a developer to develop the electrostatic latent image. The developing device includes a supply member having a second electrode member and supplying the developer to the developer bearing member at a nip portion. The holding unit holds and change the developing device to a first posture and to a second posture where the deposited developer falls off the first posture. The detection device detects a remaining developer amount in the developing device based on a capacitance C1 between the first and second electrode members in the first posture and a capacitance C2 between the first and second electrode members in the second posture.
摘要翻译： 图像形成装置包括图像承载部件，显影装置，保持单元和检测装置。 图像承载部件支撑静电潜像。 显影装置包括具有第一电极构件并支撑显影剂以显影静电潜像的显影剂承载构件。 显影装置包括具有第二电极构件的供给构件，并且在压区部分将显影剂供应到显影剂承载构件。 保持单元将显影装置保持并将其改变为第一姿势和第二姿势，其中沉积的显影剂脱离第一姿势。 检测装置基于第一姿势中的第一和第二电极部件之间的电容C1和第二姿态中的第一和第二电极部件之间的电容C2检测显影装置中的剩余显影剂量。
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