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公开(公告)号：US20090285597A1
公开(公告)日：2009-11-19
申请号：US12387580
申请日：2009-05-05
IPC分类号： G03G21/12
CPC分类号： G03G15/0815 , G03G2215/0634
摘要： Provided are a developing device and an image forming apparatus which employ a hybrid development method, have a toner-collecting developer supporting member and keep toner collecting ability stable for a long period of time to form high-quality images without development hysteresis (ghost) over a long period of time. A toner separation member abutting the toner-collecting developer supporting member through a toner-collecting developer layer is provided, and the toner separation member is applied with a bias voltage to form an electric field in such a direction as to pull toner away from the toner-collecting developer supporting member to prevent the toner from accumulating on the surface of the toner-collecting developer supporting member.
摘要翻译： 提供一种使用混合显影方法的显影装置和图像形成装置，具有调色剂收集显影剂支撑构件并且保持调色剂收集能力长时间稳定以形成高质量的图像而不产生显影滞后（鬼影） 很长一段时间。 提供了通过调色剂收集显影剂层与调色剂收集显影剂支撑构件邻接的调色剂分离部件，并且调色剂分离部件被施加偏压以在使调色剂远离调色剂的方向上形成电场 - 收集显影剂支撑构件，以防止调色剂积聚在调色剂收集显影剂支撑构件的表面上。
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公开(公告)号：US20090252513A1
公开(公告)日：2009-10-08
申请号：US12384037
申请日：2009-03-31
IPC分类号： G03G15/06
CPC分类号： G03G15/065 , G03G15/0808 , G03G15/0815 , G03G2215/0634
摘要： A developing device and image forming apparatus are provided, wherein high quality images, in which generation of development hysteresis (ghost image) is alleviated, are obtained over a long period using a hybrid development method comprising a toner-supplying developer supporting member and a toner-collecting developer supporting member. Bias voltage is applied in the direction in which the toner is supplied to the toner supporting member in the toner supply region and the toner collection region of the toner-supplying developer supporting member and the toner-collecting developer supporting member respectively so that the toner collecting capability in the toner collection region is higher than the toner collecting capability in the toner supply region.
摘要翻译： 提供了一种显影装置和图像形成装置，其中使用包括调色剂供应显影剂支撑构件和调色剂的混合显影方法在长时间内获得其中产生显影滞后（重影图像）的高质量图像 收集开发商支持会员。 偏置电压沿调色剂的方向施加到调色剂供应区域中的调色剂支撑构件和调色剂供应显影剂支撑构件和调色剂收集显影剂支撑构件的调色剂收集区域，使得调色剂收集 调色剂收集区域中的能力高于调色剂供应区域中的调色剂收集能力。
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公开(公告)号：US20070292165A1
公开(公告)日：2007-12-20
申请号：US11810451
申请日：2007-06-06
IPC分类号： G03G15/09
CPC分类号： G03G15/0815 , G03G2215/0602 , G03G2215/0607
摘要： A compact development apparatus using a two-component developer and an image forming apparatus wherein carrier deterioration is prevented to ensure formation of a high-quality image for a long time. The development apparatus uses the developer made up of a mixture of toner, carrier, and opposite polarity particles to be charged oppositely to the toner wherein the opposite polarity particles contain the particles having a relative dielectric constant of 6.7 or more.
摘要翻译： 使用双组分显影剂的紧凑型显影装置和其中阻止载流子劣化以确保长时间形成高质量图像的图像形成装置。 显影装置使用由调色剂，载体和相反极性颗粒的混合物构成的显影剂与调色剂相反地进行充电，其中相反极性的颗粒含有相对介电常数为6.7或更大的颗粒。
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公开(公告)号：US20070212122A1
公开(公告)日：2007-09-13
申请号：US11712107
申请日：2007-02-28
IPC分类号： G03G15/09
CPC分类号： G03G15/081 , G03G15/0887 , G03G15/0891 , G03G2215/0607 , G03G2221/0005
摘要： The purpose is to be provide, in a development apparatus using a two-component developer, a compact development apparatus, image forming apparatus and development method that prevents carrier deterioration and that can carry out good image formation over a long time period. In a development apparatus using a developer in which are mixed a toner, a carrier, and opposite polarity particles that are charged to a polarity opposite to the charging polarity of the toner, the surface charge density of the opposite polarity particles should be in the range of 0.5 to 3.0 times the surface charge density of the carrier.
摘要翻译： 目的是在使用双组分显影剂的显影装置中提供一种小型显影装置，图像形成装置和显影方法，其防止载流子劣化，并且可以在长时间内进行良好的图像形成。 在使用显影剂的显影装置中，其中混合调色剂，载体和与极性相反的极性的相反极性的颗粒，相反极性的颗粒的表面电荷密度应在 为载体表面电荷密度的0.5〜3.0倍。
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公开(公告)号：US20070071506A1
公开(公告)日：2007-03-29
申请号：US11519597
申请日：2006-09-12
申请人： Shigeo Uetake , Yuji Nagatomo , Junya Hirayama , Takeshi Maeyama , Masahiko Matsuura , Toshiya Natsuhara
发明人： Shigeo Uetake , Yuji Nagatomo , Junya Hirayama , Takeshi Maeyama , Masahiko Matsuura , Toshiya Natsuhara
IPC分类号： G03G15/09
CPC分类号： G03G15/0907 , G03G15/0808 , G03G2215/0607
摘要： A developing device 2a, which is provided with: a developer tank 16 that houses a developer 24 containing a toner, a carrier for charging the toner and reverse polarity particles that are charged with a polarity reversed to the electrostatic charge polarity of the toner by the carrier; a developer-supporting member 11 that supports the developer supplied from the developer tank on the surface thereof, and transports the developer; and a separating mechanism 22 that separates the toner or the reverse polarity particles from the developer supported on the developer-supporting member, and the reverse polarity particles are collected into the developer tank, is provided, and an image-forming apparatus having such a developing device and an image-forming method applied thereto are also provided.
摘要翻译： 一种显影装置2a，其设置有：容纳包含调色剂的显影剂24的显影剂罐16，用于将调色剂充电的载体和带有与调色剂的静电电荷极性相反的极性的反极性颗粒， 承运人 显影剂支撑构件11，其支撑从其表面上的显影剂罐供应的显影剂，并且运送显影剂; 以及分离机构22，其将调色剂或反极性颗粒与支撑在显影剂支撑构件上的显影剂分离，反向极性颗粒被收集到显影剂罐中，并且具有这样的显影剂 装置和应用于其的图像形成方法。
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公开(公告)号：US08489004B2
公开(公告)日：2013-07-16
申请号：US13701899
申请日：2011-05-23
申请人： Nofumi Mizumoto , Takeshi Maeyama , Junya Hirayama , Shigeo Uetake , Makiko Watanabe , Toshiya Natsuhara
发明人： Nofumi Mizumoto , Takeshi Maeyama , Junya Hirayama , Shigeo Uetake , Makiko Watanabe , Toshiya Natsuhara
IPC分类号： G03G15/08
CPC分类号： G03G15/0907 , G03G15/065 , G03G15/0806 , G03G2215/0648
摘要： A developer device includes two developer rollers arranged opposite to an image carrier. A first developer bias voltage (waveform Z) of a rectangular waveform obtained by superimposing an AC voltage on a DC voltage is applied to one of the developer rollers. A second developer bias voltage (waveform A) obtained by superimposing an AC voltage on a DC voltage is applied to the other developer roller. The waveform A is a waveform obtained by deforming the rectangular wave in the first developer bias voltage such that toner adhered to the image carrier is prevented from being dislodged by toner being subsequently scattered. According to the developer device, an optimal image density can be obtained at a low-density potential.
摘要翻译： 显影装置包括与图像载体相对布置的两个显影辊。 通过将交流电压叠加在直流电压上而获得的矩形波形的第一显影剂偏置电压（波形Z）被施加到一个显影辊。 通过将AC电压叠加在DC电压上获得的第二显影剂偏置电压（波形A）被施加到另一个显影辊。 波形A是通过使第一显影剂偏置电压中的矩形波变形而使得粘附到图像载体上的调色剂被调色剂随后分散而被移除而获得的波形。 根据显影剂装置，可以以低密度电位获得最佳图像密度。
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公开(公告)号：US20130078008A1
公开(公告)日：2013-03-28
申请号：US13701899
申请日：2011-05-23
申请人： Nofumi Mizumoto , Takeshi Maeyama , Junya Hirayama , Shigeo Uetake , Makiko Watanabe , Toshiya Natsuhara
发明人： Nofumi Mizumoto , Takeshi Maeyama , Junya Hirayama , Shigeo Uetake , Makiko Watanabe , Toshiya Natsuhara
IPC分类号： G03G15/09
CPC分类号： G03G15/0907 , G03G15/065 , G03G15/0806 , G03G2215/0648
摘要： A developer device includes two developer rollers arranged opposite to an image carrier. A first developer bias voltage (waveform Z) of a rectangular waveform obtained by superimposing an AC voltage on a DC voltage is applied to one of the developer rollers. A second developer bias voltage (waveform A) obtained by superimposing an AC voltage on a DC voltage is applied to the other developer roller. The waveform A is a waveform obtained by deforming the rectangular wave in the first developer bias voltage such that toner adhered to the image carrier is prevented from being dislodged by toner being subsequently scattered. According to the developer device, an optimal image density can be obtained at a low-density potential.
摘要翻译： 显影装置包括与图像载体相对布置的两个显影辊。 通过将交流电压叠加在直流电压上而获得的矩形波形的第一显影剂偏置电压（波形Z）被施加到一个显影辊。 通过将AC电压叠加在DC电压上获得的第二显影剂偏置电压（波形A）被施加到另一个显影辊。 波形A是通过使第一显影剂偏置电压中的矩形波变形而使得粘附到图像载体上的调色剂被调色剂随后分散而被移除而获得的波形。 根据显影剂装置，可以以低密度电位获得最佳图像密度。
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公开(公告)号：US08335445B2
公开(公告)日：2012-12-18
申请号：US12731316
申请日：2010-03-25
IPC分类号： G03G15/06
CPC分类号： G03G15/065 , G03G15/0808 , G03G2215/0607 , G03G2215/0648
摘要： Provided are a development apparatus and an image forming apparatus which, in a hybrid development apparatus provided with a plurality of toner carriers, a toner supply capability to supply toner to each toner carrier is controlled independent of development electric fields between the toner carriers and an image carrier, whereby each toner carrier is allowed to exhibit a desired development capability, and even in the case of high speed development, a high quality image is provided. The phases, the frequencies, and/or the duty ratios of the alternating current components of the voltages applied to the plurality of the toner carriers are made to be different, whereby the toner supply amount for each toner carrier from the developer carrier is controlled independently of the development electric fields between the toner carriers and the image carrier.
摘要翻译： 提供一种显影装置和图像形成装置，在具有多个调色剂载体的混合显影装置中，独立于调色剂载体和图像之间的显影电场来控制向每个调色剂载体供应调色剂的调色剂供应能力 载体，由此允许每个调色剂载体表现出期望的显影能力，并且即使在高速显影的情况下，也提供高质量的图像。 使施加到多个调色剂载体的电压的交流分量的相位，频率和/或占空比被制成不同，由此独立地控制来自显影剂载体的每个调色剂载体的调色剂供给量 的调色剂载体和图像载体之间的显影电场。
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19.发明授权公开(公告)号：US08131191B2
公开(公告)日：2012-03-06
申请号：US12288527
申请日：2008-10-20
IPC分类号： G03G15/08
CPC分类号： G03G15/0808 , G03G15/0815
摘要： Provided are an image forming apparatus equipped with a hybrid developing apparatus including a toner-collecting developer-carrying member and a method for developing an electrostatic latent image, which apparatus is capable of stably forming high definition images without occurrence of a leakage current even under a high-humidity environment. In the apparatus, each of a toner-supplying developer-carrying member and the toner-collecting developer-carrying member has a conductive substrate to which a bias voltage is applied, and at least one of the surfaces of the conductive substrates of the toner-supplying developer-carrying member and the toner-collecting developer-carrying member has a resistive layer formed thereon.
摘要翻译： 本发明提供一种图像形成装置，其配备有包括调色剂收集显影剂承载构件和静电潜像显影方法的混合显影装置，该装置能够稳定地形成高清晰度图像，而不会发生泄漏电流，即使在 高湿度环境。 在设备中，调色剂供应显影剂承载构件和调色剂收集显影剂承载构件中的每一个具有施加偏压的导电衬底，并且调色剂供给显影剂承载构件的导电衬底的至少一个表面， 供应显影剂承载构件和调色剂收集显影剂承载构件具有形成在其上的电阻层。
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公开(公告)号：US07949284B2
公开(公告)日：2011-05-24
申请号：US11982904
申请日：2007-11-06
CPC分类号： G03G15/751 , G03G2215/0607
摘要： The present invention is intended to provide an image forming apparatus capable of producing high-quality images for a long period of time wherein the consumption of the opposite polarity particles is reduced, and a reduction in the amount of toner charge resulting from carrier deterioration is minimized, even if a great number of images having a low image area ratio were printed. This image forming apparatus is characterized in that the surface of an image carrying member, which is placed face to face with a toner carrying member, and on which an electrostatic latent image to be developed with the toner supported on the toner carrying member is formed, has an contact angle of 95 degrees or more with respect to pure water.
摘要翻译： 本发明旨在提供一种能够长时间生产高质量图像的图像形成装置，其中相对极性颗粒的消耗被减少，并且由载体劣化引起的调色剂电荷量的减少最小化 ，即使打印出具有低图像面积比的大量图像。 该图像形成装置的特征在于，形成有与调色剂承载构件面对面放置的图像承载构件的表面，并且其上形成有用负载在调色剂承载构件上的调色剂显影的静电潜像， 相对于纯水的接触角为95度以上。
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