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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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23.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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25.发明授权Developing apparatus, image forming apparatus and method for forming image using opposite polarity particles 有权显影装置，图像形成装置和使用相反极性的颗粒形成图像的方法公开(公告)号：US07761041B2
公开(公告)日：2010-07-20
申请号：US11985233
申请日：2007-11-14
IPC分类号： G03G15/08
CPC分类号： G03G15/0806
摘要： The present invention provides a developing apparatus using a two-component developer, an image forming apparatus, and a method of forming an image capable of forming a high quality image characterized by stable suppression of carrier deterioration and absence of a residual image (memory effect) for a long period of time. The voltage formed by overlapping AD voltage to DC voltage is applied separately to each of the developer carrying member and the toner carrying member. The toner separation field made up of AC field is formed between the developer carrying member and the toner carrying member, and the development electric field made up AC field is formed between the toner carrying member and the image carrying member.
摘要翻译： 本发明提供了一种使用双组分显影剂，图像形成装置和形成能够形成高质量图像的图像的方法的显影装置，其特征在于稳定抑制载流子劣化和不存在残留图像（记忆效应） 很长一段时间。 将AD电压与DC电压重叠形成的电压分别施加到显影剂承载构件和调色剂承载构件。 在显影剂承载构件和调色剂承载构件之间形成由AC场组成的调色剂分离场，并且在调色剂承载构件和图像承载构件之间形成由AC场构成的显影电场。
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26.发明授权Image forming apparatus using trapezoidal shaped electric field and method for forming image 有权使用梯形电场的图像形成装置和形成图像的方法公开(公告)号：US07689150B2
公开(公告)日：2010-03-30
申请号：US11986002
申请日：2007-11-19
CPC分类号： G03G15/0813
摘要： An object of the present invention is to provide an image forming apparatus and a method for forming an image that are capable of controlling the consumption of opposite polarity particles and suppressing the reduction of toner charge amount due to the carrier deterioration and can form high quality images over a long period of time even in the case where large quantities of images with small image area ratio are printed. The image forming device includes a developer further including the opposite polarity particles, a developer carrying member, a toner carrying member, and a voltage applying section for applying bias voltage overlapped with alternating current between the toner carrying member and the image carrying member, wherein the bias voltage overlapped with alternating current is a vibrating waveform including a trapezoidal wave, or a vibrating waveform in which a blank is inserted during application of a reverse development side voltage component.
摘要翻译： 本发明的目的是提供一种图像形成装置和形成图像的方法，所述图像形成装置和方法能够控制相反极性颗粒的消耗并且抑制由于载体劣化导致的调色剂充电量的减少，并且可以形成高质量的图像 即使在打印具有小图像面积比的大量图像的情况下也可以长时间地使用。 图像形成装置包括还包括相反极性的微粒的显影剂，显影剂承载构件，调色剂承载构件和用于在调色剂承载构件和图像承载构件之间施加与交流电叠加的偏置电压的电压施加部分，其中， 与交流电叠加的偏置电压是包括梯形波的振动波形或在施加反向显影侧电压分量期间插入空白的振动波形。
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公开(公告)号：US07653335B2
公开(公告)日：2010-01-26
申请号：US11810451
申请日：2007-06-06
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：US20080219712A1
公开(公告)日：2008-09-11
申请号：US12074650
申请日：2008-03-05
IPC分类号： G03G15/08
CPC分类号： G03G15/0815 , G03G15/0808
摘要： An image forming apparatus provided with an image carrying member to carry an electrostatic latent image, a toner carrying member to develop the electrostatic latent image on the image carrying member with toner; a first developer carrying member to carry developer containing toner, carrier, reverse polarity particles and to supply toner to the toner carrying member; and a second developer carrying member to carry developer and to recover toner on the toner carrying member, wherein an ability to move the reverse polarity particles from the toner carrying member to the first developer carrying member is larger than an ability to move the reverse polarity particles from the second developer carrying member to the toner carrying member.
摘要翻译： 一种图像形成装置，其具有用于承载静电潜像的图像承载构件，调色剂承载构件，用调色剂在图像承载构件上显影静电潜像; 第一显影剂承载构件，用于承载含有调色剂，载体，反极性颗粒的显影剂，并将调色剂供给到调色剂承载构件; 以及第二显影剂承载构件，用于承载显影剂并在调色剂承载构件上回收调色剂，其中将反极性颗粒从调色剂承载构件移动到第一显影剂承载构件的能力大于使反极性颗粒移动的能力 从第二显影剂承载构件到调色剂承载构件。
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公开(公告)号：US20080124135A1
公开(公告)日：2008-05-29
申请号：US11986002
申请日：2007-11-19
IPC分类号： G03G15/08
CPC分类号： G03G15/0813
摘要： An object of the present invention is to provide an image forming apparatus and a method for forming an image that are capable of controlling the consumption of opposite polarity particles and suppressing the reduction of toner charge amount due to the carrier deterioration and can form high quality images over a long period of time even in the case where large quantities of images with small image area ratio are printed. The image forming device comprises a developer including the opposite polarity particles, a developer carrying member, a toner carrying member, and a voltage applying section for applying bias voltage overlapped with alternating current between the toner carrying member and the image carrying member, wherein the bias voltage overlapped with alternating current is a vibrating waveform including a trapezoidal wave, or a vibrating waveform in which a blank is inserted during application of a reverse development side voltage component.
摘要翻译： 本发明的目的是提供一种图像形成装置和形成图像的方法，所述图像形成装置和方法能够控制相反极性颗粒的消耗并且抑制由于载体劣化导致的调色剂充电量的减少，并且可以形成高质量的图像 即使在打印具有小图像面积比的大量图像的情况下也可以长时间地使用。 图像形成装置包括显影剂，其包括相反极性的颗粒，显影剂承载构件，调色剂承载构件和用于在调色剂承载构件和图像承载构件之间施加与交流电叠加的偏置电压的电压施加部分，其中偏置 与交流电叠加的电压是包括梯形波的振动波形或在施加逆向显影侧电压分量期间插入空白的振动波形。
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公开(公告)号：US20070092306A1
公开(公告)日：2007-04-26
申请号：US11584891
申请日：2006-10-23
IPC分类号： G03G15/09
CPC分类号： G03G15/09 , G03G15/0813
摘要： A development apparatus and an image forming apparatus capable of minimizing deterioration of the carrier for a long time, even in the case of continuous formation of images of smaller image area ratio. The charging of toner is assisted by using the developer composed of a mixture of toner and the carrier, to the surface of which is added the reverse polarity particle having a polarity reverse to that of the charged toner. Separation of the toner or reverse polarity particle of the developer prior to the process of development prevents the reverse polarity particle from being consumed in the developing area, whereby the effect thereof is maintained for a long time.
摘要翻译： 即使在连续形成图像面积比较小的情况下，能够长时间地使载体的劣化最小化的显影装置和图像形成装置。 通过使用由调色剂和载体的混合物组成的显影剂来辅助调色剂的充电，其表面上添加了与带电调色剂的极性相反极性的反极性颗粒。 在显影处理之前分离显影剂的调色剂或反极性颗粒防止反极性颗粒在显影区域中消耗，由此其效果长时间保持。
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