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公开(公告)号：US5534982A
公开(公告)日：1996-07-09
申请号：US205107
申请日：1994-03-03
CPC分类号： G03G9/0823 , G03G15/065
摘要： A developing apparatus includes a developer carrying member for opposing to an image bearing member bearing an electrostatic image, and for carrying a developer to develop the electrostatic image on the image bearing member, the developer having a polarity which is the same as a charging polarity of the image bearing member, and a bias voltage source for applying an oscillating bias voltage to the developer carrying member. The bias voltage oscillates interposing an image portion potential of the image bearing member, and an absolute value of a peak level of a background portion side potential is smaller than an absolute value of a background portion potential.
摘要翻译： 显影装置包括显影剂承载构件，用于与承载静电图像的图像承载构件相对，并且用于承载显影剂以使图像承载构件上的静电图像显影，显影剂具有与充电极性相同的极性 图像承载部件和用于向显影剂承载部件施加振荡偏压的偏置电压源。 偏置电压使图像承载部件的图像部分电位发生振荡，背景部分侧电位的峰值电平的绝对值小于背景部分电位的绝对值。
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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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6.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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8.发明授权Fixing device which controls an energizing condition of a heater after fixing operation 失效固定装置，其在固定操作之后控制加热器的通电状态
公开(公告)号：US5436709A
公开(公告)日：1995-07-25
申请号：US93857
申请日：1993-07-20
CPC分类号： G03G15/2039 , G03G15/2046
摘要： A fixing device which can be employed in an image forming apparatus controls energization of a heater which heats a fixing device, and a detector for detecting the condition of fixing operations such as the temperature of the fixing device, energizing time of the heater, types of transfer sheets to be used, and the number of previously performed fixing operations. A controller selects from plural kinds of temperature control on the basis of the condition detected by the detector, and controls energization and temperature of the heater during fixing operation including a backward revolution of the fixing device which is performed after an image is fixed. With the above constitution, both an excellent fixing property of a thick transfer sheet in low temperature environment and prevention against curls and wrinkles of thin transfer sheets in high temperature environment can be realized.
摘要翻译： 可以用于图像形成装置中的定影装置控制加热定影装置的加热器的通电，以及用于检测定影装置的温度，加热器的通电时间等定影操作的状态的检测器， 要使用的转印纸，以及先前执行的定影操作的数量。 控制器根据由检测器检测到的状况从多种温度控制中进行选择，并且在固定操作期间控制加热器的通电和温度，包括在图像被固定之后进行的定影装置的向后旋转。 利用上述结构，可以实现在低温环境中厚转印片材的优良定影性能，并且可以防止在高温环境中的薄转印片材的卷曲和皱纹。
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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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