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公开(公告)号：US20200310275A1
公开(公告)日：2020-10-01
申请号：US16817020
申请日：2020-03-12
发明人： Ryosuke Kanai , Makoto Fukatsu
IPC分类号： G03G15/02 , G03G15/043 , G03G15/06 , G03G15/00
摘要： During non-image formation, an exposure unit exposes an image formable region on the image bearing member surface charged by a charging member to light, and, in a state where toner is able to be supplied from a developing member to the image bearing member, during a period from when a developing voltage starts to be changed from a first developing voltage to a second developing voltage smaller than the first developing voltage until the developing voltage is completed to be changed to the second developing voltage. A controller controls the exposure unit so that, after the image bearing member surface exposed to light with a first exposure amount by the exposure unit passes through a development portion, the image bearing member surface exposed to light with a second exposure amount smaller than the first exposure amount by the exposure unit passes through the development portion.
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公开(公告)号：US20190265606A1
公开(公告)日：2019-08-29
申请号：US16282830
申请日：2019-02-22
IPC分类号： G03G15/02
摘要： An image forming apparatus includes: an image bearing member to rotate; a charging member to charge a surface of the image bearing member; a charging voltage applying portion to apply an alternating-current voltage having a predetermined charging frequency to the charging member; and an exposing portion to perform image exposure and background exposure. A plurality of modes are settable for the image forming apparatus, and the plurality of image forming modes include image forming modes different in a background potential difference which is a potential difference between a surface potential of the image bearing member after the surface of the image bearing member is charged and before the charged surface is exposed by the exposing portion and a surface potential of a portion of the surface of the image bearing member which has been subjected to the background exposure.
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公开(公告)号：US20130336670A1
公开(公告)日：2013-12-19
申请号：US13911385
申请日：2013-06-06
IPC分类号： G03G15/16
CPC分类号： G03G21/0005 , G03G15/0189 , G03G15/161 , G03G21/0011
摘要： An image forming apparatus, including: a rotatable image bearing member; a developing unit configured to supply a developer onto the image bearing member; a transfer unit configured to transfer the developer on the image bearing member to a recording medium by a transfer voltage being applied to the transfer unit by a voltage applying unit; and a cleaning unit configured to remove the developer on the image bearing member, wherein when the apparatus stops an image forming operation halfway, the apparatus executes a recovery operation in which the image bearing member is rotated while the voltage applying unit applies a voltage to the transfer unit so that a part of the developer remaining on the image bearing member is once transferred from the image bearing member to the transfer unit, transferred again from the transfer unit to the image bearing member, and then removed by the cleaning unit.
摘要翻译： 一种图像形成装置，包括：可旋转图像承载部件; 显影单元，构造成将显影剂供应到图像承载部件上; 传送单元，被配置为通过施加到转印单元的转印电压通过电压施加单元将图像承载部件上的显影剂转印到记录介质; 以及清洁单元，其构造成去除图像承载部件上的显影剂，其中当所述装置中途停止图像形成操作时，所述装置执行恢复操作，其中所述图像承载部件旋转，同时所述电压施加单元向所述图像承载部件施加电压 转印单元，使得保留在图像承载部件上的显影剂的一部分一次从图像承载部件转印到转印单元，再次从转印单元传送到图像承载部件，然后由清洁单元去除。
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公开(公告)号：US20180231918A1
公开(公告)日：2018-08-16
申请号：US15891030
申请日：2018-02-07
发明人： Ryosuke Kanai , Tomoo Akizuki
IPC分类号： G03G15/08
CPC分类号： G03G15/0882 , G03G15/0806 , G03G15/0856 , G03G15/0865 , G03G15/0891 , G03G21/1814 , G03G21/1889 , G03G21/1892 , G03G2215/0687
摘要： An image forming apparatus is provided which can reduce occurrence of unusual noise. The image forming apparatus includes a driving motor configured to drive a developer bearing member and a control unit which can control the driving motor between a first driving speed and a second driving speed higher than the first driving speed. In a case where the first driving speed is equal to the driving speed of the image forming operation, the control unit controls the driving motor to drive at the second driving speed while an unsealing operation is being performed.
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5.发明授权Developer container, developing device, process cartridge and image forming apparatus 有权显影剂容器，显影装置，处理盒和成像装置公开(公告)号：US09335664B2
公开(公告)日：2016-05-10
申请号：US14630873
申请日：2015-02-25
发明人： Makoto Tokudome , Ryosuke Kanai
IPC分类号： G03G15/08
CPC分类号： G03G15/0898 , G03G15/0882
摘要： A developer container includes: an accommodating chamber, provided with an opening for permitting discharge of a developer; and developer feeding means. The developer feeding means includes: a rotatable member; a developer feeding member fixed on the rotatable member; a sealing member for opening the opening by the rotation of the rotatable member, wherein one end portion thereof is fixed on the rotatable member and the other end portion thereof is provided so as to seal the opening; and a regulating portion for regulating the sealing member, which is wound about the rotatable member after the opening is opened by the rotation of the rotatable member, so as to expose a feeding surface of the developer feeding member.
摘要翻译： 显影剂容器包括：容纳室，设置有用于允许显影剂排出的开口; 和显影剂供给装置。 显影剂供给装置包括：可旋转构件; 固定在所述可旋转构件上的显影剂供给构件; 用于通过所述可旋转构件的旋转来打开所述开口的密封构件，其中一个端部固定在所述可旋转构件上，并且所述另一端部设置成密封所述开口; 以及用于调节密封构件的调节部分，其通过可旋转构件的旋转而打开开口之后卷绕在可旋转构件上，以便暴露显影剂供给构件的进给表面。
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公开(公告)号：US20130279921A1
公开(公告)日：2013-10-24
申请号：US13851206
申请日：2013-03-27
发明人： Ryosuke Kanai , Kohei Matsuda , Masao Uyama , Koichiro Takashima
IPC分类号： G03G15/00
CPC分类号： G03G15/50 , G03G15/0813 , G03G21/1652
摘要： An image forming apparatus including: an image bearing member on which a latent image is formed; a developer carrying member configured to carry developer; a conductive member paired with one of the developer carrying member and the image bearing member to form a capacitor; a contact-separation member configured to assume a first position for bringing the developer carrying member into contact with the image bearing member and a second position for separating the developer carrying member from the image bearing member; a detecting unit configured to detect a capacitance of the capacitor applied with a voltage; and a control unit configured to detect whether the apparatus is ready for image formation based on a first detected result detected by the detecting unit when the contact-separation member assumes the first position and a second detected result detected by the detecting unit when the contact-separation member assumes the second position.
摘要翻译： 一种图像形成装置，包括：形成有潜像的图像承载部件; 构造成承载显影剂的显影剂承载构件; 与所述显影剂承载构件和所述图像承载构件中的一个成对形成电容器的导电构件; 接触分离构件，其构造成呈现用于使显影剂承载构件与图像承载构件接触的第一位置和用于将显影剂承载构件与图像承载构件分离的第二位置; 检测单元，被配置为检测施加有电压的电容器的电容; 以及控制单元，被配置为当所述接触分离构件呈现所述第一位置时，基于由所述检测单元检测到的第一检测结果来检测所述设备是否准备好成像，以及当所述接触分离部件接触时，由所述检测单元检测到的第二检测结果， 分离构件呈现第二位置。
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公开(公告)号：US20220187734A1
公开(公告)日：2022-06-16
申请号：US17437987
申请日：2020-03-11
发明人： Yuta Isobe , Kuniaki Tamagaki , Takashi Koyanagi , Akihisa Matsukawa , Ryosuke Kanai , Hiroki Tanaka , Motonari Ito , Kazuhisa Shida , Makoto Fukatsu
摘要： An image forming apparatus at least includes: an image bearing member; a developer container; a developer carrying member; and a controller that controls a power source that applies a voltage to the developer carrying member, wherein the developer carrying member has at least a base and a surface layer, the surface layer has an electron donating portion that mainly donates charge to the developer when the developer and the surface layer makes frictional contact to exchange charge and an electron accepting portion that mainly accepts charge from the developer, and the controller applies an AC voltage to the developer carrying member during a period in which an image forming operation is not performed and the developer carrying member is driven, the AC voltage being different from that applied during an image forming period.
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公开(公告)号：US09354587B2
公开(公告)日：2016-05-31
申请号：US13911385
申请日：2013-06-06
CPC分类号： G03G21/0005 , G03G15/0189 , G03G15/161 , G03G21/0011
摘要： An image forming apparatus, including: a rotatable image bearing member; a developing unit configured to supply a developer onto the image bearing member; a transfer unit configured to transfer the developer on the image bearing member to a recording medium by a transfer voltage being applied to the transfer unit by a voltage applying unit; and a cleaning unit configured to remove the developer on the image bearing member, wherein when the apparatus stops an image forming operation halfway, the apparatus executes a recovery operation in which the image bearing member is rotated while the voltage applying unit applies a voltage to the transfer unit so that a part of the developer remaining on the image bearing member is once transferred from the image bearing member to the transfer unit, transferred again from the transfer unit to the image bearing member, and then removed by the cleaning unit.
摘要翻译： 一种图像形成装置，包括：可旋转图像承载部件; 显影单元，构造成将显影剂供应到图像承载部件上; 传送单元，被配置为通过施加到转印单元的转印电压通过电压施加单元将图像承载部件上的显影剂转印到记录介质; 以及清洁单元，其构造成去除图像承载部件上的显影剂，其中当所述装置中途停止图像形成操作时，所述装置执行恢复操作，其中所述图像承载部件旋转，同时所述电压施加单元向所述图像承载部件施加电压 转印单元，使得保留在图像承载部件上的显影剂的一部分一次从图像承载部件转印到转印单元，再次从转印单元传送到图像承载部件，然后由清洁单元去除。
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公开(公告)号：US20150338770A1
公开(公告)日：2015-11-26
申请号：US14719164
申请日：2015-05-21
发明人： Satoshi Sunahara , Ryosuke Kanai
IPC分类号： G03G15/08
CPC分类号： G03G15/0812 , G03G15/08 , G03G15/081 , G03G15/0898
摘要： A developing device includes a developer bearing member that bears a developer, a developer regulating member having a regulation portion comprised of an elastic member contacting the developer bearing member, and a supporting portion supporting the regulation portion, a longitudinal direction of the regulation portion being along that of the developer bearing member, the regulation portion having a base portion and tip portion, the base portion being an end portion on a side of a portion connected with the supporting portion in a transverse direction, the base portion being opposite to the tip portion, the tip portion being disposed on an upstream side in a moving direction of the developer bearing member, the developer regulating member regulating a developer on the developer bearing member, and a sealing member contacting a regulation portion's surface, the surface being on an opposite side of the regulation portion to the developer bearing member.
摘要翻译： 显影装置包括承载显影剂的显影剂承载构件，具有包括与显影剂承载构件接触的弹性构件的调节部分的显影剂调节构件和支撑调节部分的支撑部分，调节部分的纵向方向沿着 显影剂承载部件的调节部分具有基部和顶端部分，基部是在横向方向上与支撑部分连接的部分的一侧上的端部，基部与尖端部分相对 所述尖端部分设置在所述显影剂承载部件的移动方向上的上游侧，所述显影剂调节部件调节所述显影剂承载部件上的显影剂，以及与所述调节部分的表面接触的密封部件，所述表面位于相对侧 的调节部分。
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公开(公告)号：US09069312B2
公开(公告)日：2015-06-30
申请号：US13851206
申请日：2013-03-27
发明人： Ryosuke Kanai , Kohei Matsuda , Masao Uyama , Koichiro Takashima
CPC分类号： G03G15/50 , G03G15/0813 , G03G21/1652
摘要： An image forming apparatus includes a conductive member paired with one of a developer carrying member and an image bearing member to form a capacitor. A contact-separation member assumes a first position for bringing the developer carrying member into contact with the image bearing member and a second position for separating the developer carrying member from the image bearing member. A detecting unit detects a value relating to a capacitance of the capacitor when a voltage is applied to the capacitor, and a control unit detects whether or not the image forming apparatus is ready for image formation by comparing a first detected result and a second detected result to each other. The first detected result is detected when the contact-separation member assumes the first position, and the second detected result is detected when the contact-separation member assumes the second position.
摘要翻译： 图像形成装置包括与显影剂承载构件和图像承载构件之一成对形成电容器的导电构件。 接触分离构件呈现用于使显影剂承载构件与图像承载构件接触的第一位置和用于将显影剂承载构件与图像承载构件分离的第二位置。 当对电容器施加电压时，检测单元检测与电容器的电容有关的值，并且控制单元通过比较第一检测结果和第二检测结果来检测图像形成装置是否准备好进行图像形成 对彼此。 当接触分离部件呈现第一位置时检测到第一检测结果，并且当接触分离部件处于第二位置时检测到第二检测结果。
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