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11.发明授权Developing apparatus that applies voltage to developer layer thickness regulating member 失效对显影剂层厚度调节部件施加电压的显影装置
公开(公告)号：US5570166A
公开(公告)日：1996-10-29
申请号：US345394
申请日：1994-11-18
IPC分类号： G03G15/09
CPC分类号： G03G15/09 , G03G2215/0614
摘要： An image forming apparatus includes an image bearing member for bearing an electrostatic image; a developer carrying member, opposed to the image bearing member, for carrying a one component developer which is charged to a predetermined polarity by friction between the developer and the developer carrying member; an electric field generating device for generating, between the image bearing member and developer carrying member, an electric field for developing the electrostatic image on the image bearing member with a reverse development method; a regulating member for regulating an amount of the developer on the developer carrying member; and a voltage applying device for applying to the regulating member, a voltage having a polarity opposite the predetermined polarity.
摘要翻译： 图像形成装置包括用于承载静电图像的图像承载部件; 显影剂承载构件，与图像承载构件相对，用于承载通过显影剂和显影剂承载构件之间的摩擦而被加载到预定极性的单组分显影剂; 电场产生装置，用于在图像承载部件和显影剂承载部件之间产生用于使图像承载部件上的静电图像显影的电场; 调节构件，用于调节显影剂承载构件上的显影剂的量; 以及用于向调节构件施加具有与预定极性相反的极性的电压的施加电压装置。
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公开(公告)号：US08437678B2
公开(公告)日：2013-05-07
申请号：US12552892
申请日：2009-09-02
IPC分类号： G03G21/00
CPC分类号： G03G15/065 , G03G15/0812
摘要： An image forming apparatus includes a developer bearing member configured to bear a developer to develop a latent image, a developer regulating member configured to regulate an amount of the developer carried on the bearing member, a voltage application unit that can apply a plurality of direct current voltages of different values between the bearing member and the regulating member, and a current detection unit that can detect a plurality of direct currents of different values flowing in the regulating member when the voltage application unit applies the plurality of direct current voltages, wherein the image forming apparatus sets a direct current voltage value Vb applied by the voltage application unit when developing the latent image, so that the following expression is satisfied: |Vb|>|Vbmin|, where Vbmin indicates a direct current voltage value when the direct current detected by the current detection unit is a minimum value.
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公开(公告)号：US20110026978A1
公开(公告)日：2011-02-03
申请号：US12904007
申请日：2010-10-13
申请人： Shinichi Nishida , Katsunori Yokoyama , Yasushi Shimizu , Kazunari Hagiwara , Katsuhiro Sakaizawa , Rie Endo , Naoto Kichijima
发明人： Shinichi Nishida , Katsunori Yokoyama , Yasushi Shimizu , Kazunari Hagiwara , Katsuhiro Sakaizawa , Rie Endo , Naoto Kichijima
IPC分类号： G03G15/08
CPC分类号： G03G15/0812
摘要： An amount-of-developer regulating apparatus configured to restrict the amount of developer carried on a developer bearing member. The amount-of-developer regulating apparatus includes a flexible developer amount regulation member having a contact portion configured to contact with a developer bearing member, and first and second holding portions configured to hold the developer amount regulation member and to contact with the developer amount regulation member at further upstream and further downstream in a direction where the developer bearing member is rotationally moved than the contact portion. With a pressure distribution of the contact portion as to the developer bearing member, there are a plurality of local maximum values in the direction where the developer bearing member is rotationally moved. Thus, the apparatus can be reduced in size, and also image concentration unevenness after long-term use can be prevented.
摘要翻译： 一种显影剂调节装置，其被配置为限制承载在显影剂承载部件上的显影剂的量。 显影剂量调节装置包括柔性显影剂量调节构件，其具有构造成与显影剂承载构件接触的接触部分，以及构造成保持显影剂量调节构件并与显影剂量调节剂接触的第一和第二保持部分 构件在显影剂承载构件比接触部分旋转移动的方向的更上游和更下游。 通过接触部分对显影剂承载部件的压力分布，在显影剂承载部件被旋转移动的方向上存在多个局部最大值。 因此，可以减小装置的尺寸，并且可以防止长期使用后的图像浓度不均匀。
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公开(公告)号：US20090003863A1
公开(公告)日：2009-01-01
申请号：US12118286
申请日：2008-05-09
IPC分类号： G03G15/10
CPC分类号： G03G15/0818 , G03G15/0808 , G03G2215/0135
摘要： A developing apparatus in which a toner has a volume-average particle diameter R that is in a range of 4.0 μm≦R≦6.2 μm, a developing roller has an arithmetic mean roughness Ra (μm) that is not more than 0.10 times the volume-average particle diameter R of the toner, a voltage applied to a supply roller is of negative polarity, that is, a normal charging polarity of the toner, triboelectrification polarity of the supply roller with respect to the toner is negative, that is, of the normal charging polarity of the toner, and an abutment width S in which the developing roller and the supply roller abut each other is in a range of 2.5 mm≦S≦5.5 mm.
摘要翻译： 一种显影装置，其中调色剂的体积平均粒径R在4.0μm<= R <=6.2μm的范围内，显影辊的算术平均粗糙度Ra（mum）不大于0.10倍 调色剂的体积平均粒径R，施加到供给辊的电压为负极性，即调色剂的正常充电极性，供给辊相对于调色剂的摩擦带电极性为负，也就是说 的调色剂的正常充电极性，以及显影辊和供给辊彼此抵接的抵接宽度S在2.5mm≤S<= 5.5mm的范围内。
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公开(公告)号：US20070098459A1
公开(公告)日：2007-05-03
申请号：US11589144
申请日：2006-10-30
申请人： Rie Endo , Shuji Moriya , Katsuhiro Sakaizawa , Norio Takahashi
发明人： Rie Endo , Shuji Moriya , Katsuhiro Sakaizawa , Norio Takahashi
IPC分类号： G03G15/08
CPC分类号： G03G15/065 , G03G2215/0634
摘要： An image forming apparatus includes an image bearing member; a developer carrying member, contactable to the image bearing member, for carrying a developer to a developing position to develop an electrostatic image formed on the image bearing member with the developer; a supplying member for supplying the developer to the developer carrying member, wherein a peripheral speed of the developer carrying member is not less than 1.05 times and not more than 1.20 times a peripheral speed of the image bearing member, and an arithmetic average roughness Ra is not less than 0.20 times and not more than 0.33 times a volume average particle size of the developer, wherein a potential applied to the supplying member is different from a potential applied to the developer carrying member toward a larger potential of a regular charge polarity of the developer.
摘要翻译： 图像形成装置包括：图像承载部件; 显影剂承载构件，可接触图像承载构件，用于将显影剂携带到显影位置以使显影剂形成在图像承载构件上形成静电图像; 用于将显影剂供应到显影剂承载构件的供应构件，其中显影剂承载构件的圆周速度不小于图像承载构件的圆周速度的1.05倍且不大于1.20倍，并且算术平均粗糙度Ra为 不小于显影剂的体积平均粒径的0.20倍且不大于0.33倍，其中施加到供给构件的电位不同于施加到显影剂承载构件的电位朝向较大的电荷极性的电位 开发者
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16.发明授权Image forming apparatus featuring application of superimposed DC and AC voltages and DC voltage 失效图像形成装置具有叠加的直流和交流电压和直流电压公开(公告)号：US06603935B2
公开(公告)日：2003-08-05
申请号：US10058413
申请日：2002-01-30
IPC分类号： G03G1500
CPC分类号： G03G15/0216 , G03G2221/0005
摘要： An image forming apparatus includes an image bearing member, a flexible changing member and a developing device. When a first area to be an image forming area of the image bearing member, is present in a nip portion, a superimposed voltage resulting from a direct current voltage and an alternating voltage having a peak to peak voltage smaller than an alternating voltage applied when a charging potential of the image bearing member is converged is applied to the charging member. When a part of a second area to be a non-image area of the image bearing member exists in the nip portion, a direct current voltage without an alternating voltage is applied to the charging member.
摘要翻译： 图像形成装置包括图像承载部件，柔性更换部件和显影装置。 当作为图像承载部件的图像形成区域的第一区域存在于夹持部分中时，由直流电压和具有峰值电压的交流电压产生的叠加电压小于当a 将图像承载部件的充电电势收敛到充电部件。 当在夹持部中存在作为图像承载部件的非图像区域的第二区域的一部分时，将没有交流电压的直流电压施加到充电部件。
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公开(公告)号：US06185387B2
公开(公告)日：2001-02-06
申请号：US09075210
申请日：1998-05-11
IPC分类号： G03G1500
CPC分类号： G03G15/065 , G03G15/0216 , G03G15/1675 , G03G2215/00548 , G03G2221/0005
摘要： An image forming apparatus includes an image bearing member; a charging member for charging a surface of the image bearing member while contacting thereto with a predetermined voltage applied to the charging member; exposure member for exposing the surface of the image bearing member to form an electrostatic latent image; a toner carrying member contacted to the image bearing member with a predetermined voltage applied to the toner carrying member to visualize the electrostatic latent image into a toner image with toner carried thereon; an image transfer member for urging a transfer material to contact the transfer material to the image bearing member with a predetermined voltage applied to the image transfer member to transfer the toner image onto the transfer material; a device for applying the predetermined voltages to the charging member, the toner carrying member and the transfer member; and a controller for controlling the device that applies the predetermined voltage, the controller being operable in an operation mode for applying the predetermined voltage Vc to the charging member, the predetermined voltage Vdiv to the toner carrying member and the predetermined voltage Vtr to the transfer member, with the following satisfied: (1) Vc, Vdiv and Vtr have polarities the same as that of the toner: (2) |V1|>|Vdiv|, where V1 is a surface potential of the image bearing member charged by the charging means: and (3) |V1|>|V2|, where V2 is a surface potential of the image bearing member charged by voltage Vtr.
摘要翻译： 图像形成装置包括：图像承载部件; 充电构件，用于在与所述充电构件施加的预定电压接触的同时对所述图像承载构件的表面充电; 曝光构件，用于暴露图像承载构件的表面以形成静电潜像; 调色剂承载构件以预定的电压与图像承载构件接触，以将调色剂图像形象化为调色剂图像，调色剂图像带有调色剂; 图像转印部件，用于以施加到图像转印部件的预定电压推压转印材料将转印材料接触到图像承载部件，以将调色剂图像转印到转印材料上; 用于将预定电压施加到充电构件，调色剂承载构件和转印构件的装置; 以及用于控制施加预定电压的装置的控制器，所述控制器可操作为将预定电压Vc施加到充电构件的操作模式，到调色剂承载构件的预定电压Vdiv和到转印构件的预定电压Vtr ，满足以下要求：（1）Vc，Vdiv和Vtr具有与调色剂相同的极性：（2）| V1 |> | Vdiv |，其中V1是通过充电充电的图像承载部件的表面电位 意味着：和（3）| V1 |> | V2 |，其中V2是由电压Vtr充电的图像承载部件的表面电位。
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公开(公告)号：US08019260B2
公开(公告)日：2011-09-13
申请号：US12765344
申请日：2010-04-22
申请人： Rie Endo , Shuji Moriya , Katsuhiro Sakaizawa , Norio Takahashi
发明人： Rie Endo , Shuji Moriya , Katsuhiro Sakaizawa , Norio Takahashi
IPC分类号： G03G15/08
CPC分类号： G03G15/065 , G03G2215/0634
摘要： An image forming apparatus includes an image bearing member; a developer carrying member, contactable to the image bearing member, for carrying a developer to a developing position to develop an electrostatic image formed on the image bearing member with the developer; a supplying member for supplying the developer to the developer carrying member, wherein a peripheral speed of the developer carrying member is not less than 1.05 times and not more than 1.20 times a peripheral speed of the image bearing member, and an arithmetic average roughness Ra is not less than 0.20 times and not more than 0.33 times a volume average particle size of the developer, wherein a potential applied to the supplying member is different from a potential applied to the developer carrying member toward a larger potential of a regular charge polarity of the developer.
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公开(公告)号：US20070297834A1
公开(公告)日：2007-12-27
申请号：US11766507
申请日：2007-06-21
申请人： Shinichi Nishida , Katsunori Yokoyama , Yasushi Shimizu , Kazunari Hagiwara , Katsuhiro Sakaizawa , Rie Endo , Naoto Kichijima
发明人： Shinichi Nishida , Katsunori Yokoyama , Yasushi Shimizu , Kazunari Hagiwara , Katsuhiro Sakaizawa , Rie Endo , Naoto Kichijima
IPC分类号： G03G15/08
CPC分类号： G03G15/0812
摘要： An amount-of-developer regulating apparatus configured to restrict the amount of developer carried on a developer bearing member. The amount-of-developer regulating apparatus includes a flexible developer amount regulation member having a contact portion configured to contact with a developer bearing member, and first and second holding portions configured to hold the developer amount regulation member and to contact with the developer amount regulation member at further upstream and further downstream in a direction where the developer bearing member is rotationally moved than the contact portion. With a pressure distribution of the contact portion as to the developer bearing member, there are a plurality of local maximum values in the direction where the developer bearing member is rotationally moved. Thus, the apparatus can be reduced in size, and also image concentration unevenness after long-term use can be prevented.
摘要翻译： 一种显影剂调节装置，其被配置为限制承载在显影剂承载部件上的显影剂的量。 显影剂量调节装置包括柔性显影剂量调节构件，其具有构造成与显影剂承载构件接触的接触部分，以及构造成保持显影剂量调节构件并与显影剂量调节剂接触的第一和第二保持部分 构件在显影剂承载构件比接触部分旋转移动的方向的更上游和更下游。 通过接触部分对显影剂承载部件的压力分布，在显影剂承载部件被旋转移动的方向上存在多个局部最大值。 因此，可以减小装置的尺寸，并且可以防止长期使用后的图像浓度不均匀。
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公开(公告)号：US20060257175A1
公开(公告)日：2006-11-16
申请号：US11429982
申请日：2006-05-09
申请人： Rie Endo , Katsuhiro Sakaizawa , Ryuji Yamamoto
发明人： Rie Endo , Katsuhiro Sakaizawa , Ryuji Yamamoto
IPC分类号： G03G15/08
CPC分类号： G03G15/0815
摘要： A developing apparatus has a developer carrying member carrying a developer thereon, a developer supplying member for supplying the developer to the developer carrying member, and a scraping member for contacting with the developer carrying member upstream of the closest position between the developer carrying member and the developer supplying member with respect to the movement direction of the developer carrying member to thereby scrape off the developer from the developer carrying member, wherein there is formed a developer supplying portion surrounded by the scraping member, the developer carrying member and the developer supplying member for supplying the developer from the developer supplying member to the developer carrying member, and the developer scraped off by the scraping member is conveyed to a collecting passage differing from the closest position.
摘要翻译： 显影装置具有在其上承载显影剂的显影剂承载构件，用于将显影剂供应到显影剂承载构件的显影剂供应构件和用于在显影剂承载构件和显影剂承载构件之间的最接近位置的上游与显影剂承载构件接触的刮削构件 显影剂供应构件相对于显影剂承载构件的移动方向从而从显影剂承载构件刮下显影剂，其中形成由刮擦构件包围的显影剂供应部分，显影剂承载构件和用于 将显影剂从显影剂供应构件供应到显影剂承载构件，并且由刮擦构件刮下的显影剂被传送到与最接近的位置不同的收集通道。
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