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1. 发明授权

US08699901B2 Deposited toner measuring apparatus having a capacitor and a capacitance change detector for detecting a change in capacitance of the capacitor, and an image formation apparatus, and method for controlling image formation apparatus related thereto 有权
标题翻译：具有用于检测电容器的电容变化的电容器和电容变化检测器的沉积调色剂测量装置和图像形成装置以及与其相关的图像形成装置的控制方法
公开(公告)号：US08699901B2
公开(公告)日：2014-04-15
申请号：US13041945
申请日：2011-03-07
申请人： Junya Hirayama , Toshiya Natsuhara , Takeshi Maeyama , Shigeo Uetake , Nofumi Mizumoto , Makiko Watanabe
发明人： Junya Hirayama , Toshiya Natsuhara , Takeshi Maeyama , Shigeo Uetake , Nofumi Mizumoto , Makiko Watanabe
IPC分类号： G03G15/08 , G03G15/00
CPC分类号： G03G15/0812 , G03G2215/0634
摘要： Provided is a deposited-toner measuring apparatus capable of accurate detection of the amount of toner deposited on the toner carrying member, and an image forming apparatus equipped with the aforementioned measuring apparatus and capable of controlling the amount of toner deposited on the toner carrying member to a desired level so as to provide stable image quality at all times. A deposited-toner measuring apparatus that removes a toner layer in a part of the surface of the toner carrying member, detects change in the capacitance at the portion with a toner layer and the portion without such a toner layer, and detects the amount of the deposited toner based on the detection result of the said change in the capacitance.
摘要翻译：提供一种能够准确地检测沉积在调色剂承载构件上的调色剂量的沉积调色剂测量装置，以及配备有上述测量装置的图像形成装置，并且能够将沉积在调色剂承载构件上的调色剂的量控制到所需的水平，以便始终提供稳定的图像质量。去除调色剂承载构件表面的一部分中的调色剂层的沉积调色剂测量装置检测在具有调色剂层的部分处的电容的变化和没有这样的调色剂层的部分的变化，并且检测基于所述电容变化的检测结果的沉积调色剂。

2. 发明授权

US08483600B2 Development device having developer carrier with stationary disposed magnetic body 有权
标题翻译：具有具有固定设置磁性体的显影剂载体的显影装置
公开(公告)号：US08483600B2
公开(公告)日：2013-07-09
申请号：US12644544
申请日：2009-12-22
申请人： Shigeo Uetake , Toshiya Natsuhara , Junya Hirayama , Takeshi Maeyama , Makiko Watanabe
发明人： Shigeo Uetake , Toshiya Natsuhara , Junya Hirayama , Takeshi Maeyama , Makiko Watanabe
IPC分类号： G03G15/08
CPC分类号： G03G15/0808 , G03G15/0928 , G03G2215/0609
摘要： Provided is a development device and an image forming apparatus that realize high image quality with improved decrease in density at high speed development and with reduced occurrence of development hysteresis (ghost) in a hybrid developing method having a plurality of toner carriers, by reducing the decrease in the toner supplying ability to a downstream-side toner carrier, which decrease is caused by the supply of toner to an upstream-side toner carrier on an upstream side in a rotating direction of a developer carrier. By providing a magnetic pole between main magnetic poles, of the developer carrier, facing the toner carriers, a magnetically raised bristle of developer is moved by a magnetic force, while the developer in which development hysteresis due to supplying toner to the upstream-side toner carrier occurred is conveyed to supply toner to the downstream-side toner carrier, whereby a developer layer is stirred.
摘要翻译：提供了一种显影装置和图像形成装置，其通过改善在高速显影下的密度降低而实现高图像质量，并且通过减少减少的减少在具有多个调色剂载体的混合显影方法中减少显影滞后（重影）的发生在下游侧调色剂载体的调色剂供给能力中，这是通过在显影剂载体的旋转方向的上游侧向上游侧调色剂载体供给调色剂而引起的。通过在显影剂载体的主要磁极之间设置磁极，面对调色剂载体，磁力升高的显影剂刷毛通过磁力移动，而由于向上游侧调色剂供应调色剂而产生显影滞后的显影剂发送的载体被输送以向下游侧调色剂载体供给调色剂，由此搅拌显影剂层。

3. 发明授权

US08306464B2 Development device and image forming apparatus using the same 有权
标题翻译：显影装置和使用其的图像形成装置
公开(公告)号：US08306464B2
公开(公告)日：2012-11-06
申请号：US12776752
申请日：2010-05-10
申请人： Takeshi Maeyama , Toshiya Natsuhara , Junya Hirayama , Shigeo Uetake , Makiko Watanabe
发明人： Takeshi Maeyama , Toshiya Natsuhara , Junya Hirayama , Shigeo Uetake , Makiko Watanabe
IPC分类号： G03G15/08
CPC分类号： G03G15/0808 , G03G2215/0634
摘要： Provided is a development device and an image forming apparatus both using a hybrid development method and capable of forming high quality images without occurrence of development hysteresis (ghost). The nip portion of the toner carrier and the developer carrier is configured as follows: the rotating direction of a toner carrier and a developer carrier are in counter directions; a magnetic pole facing the toner carrier is positioned on the upstream side in the developer carrier rotating direction; and a counter charge generated by the toner supply reaches a toner recovering portion without being considerably attenuated.
摘要翻译：提供了一种使用混合显影方法并能够形成高质量图像而不发生显影滞后（重影）的显影装置和图像形成装置。调色剂载体和显影剂载体的夹持部分构造如下：调色剂载体和显影剂载体的旋转方向为反方向; 面向调色剂载体的磁极位于显影剂载体旋转方向的上游侧; 并且由调色剂供应产生的计数器电荷到达调色剂回收部分而不被显着衰减。

4. 发明授权

US08200130B2 Development device and image forming apparatus using the same 有权
标题翻译：显影装置和使用其的图像形成装置
公开(公告)号：US08200130B2
公开(公告)日：2012-06-12
申请号：US12592790
申请日：2009-12-02
申请人： Takeshi Maeyama , Toshiya Natsuhara , Junya Hirayama , Shigeo Uetake , Makiko Watanabe
发明人： Takeshi Maeyama , Toshiya Natsuhara , Junya Hirayama , Shigeo Uetake , Makiko Watanabe
IPC分类号： G03G15/08
CPC分类号： G03G15/0896 , G03G15/0818 , G03G2215/0648
摘要： In a hybrid development method using a plurality of toner carriers, a development device and image forming apparatus are provided, wherein high image quality in which toner density is not reduced even in the case of high speed printing and the occurrence of development hysteresis (ghost) is controlled is ensured by accelerating the collection of the post-development residual toner on the toner carrier. The counter-charge having occurred in the developer remains in the developer without decreasing to disappear until the developer moves to the second toner carrier on the downstream-side, wherein this counter-charge is caused by supplying toner to the first toner carrier upstream in the rotating direction of the developer carrier.
摘要翻译：在使用多个调色剂载体的混合显影方法中，提供了显影装置和图像形成装置，其中即使在高速打印的情况下也不降低调色剂浓度的高图像质量和显影滞后（鬼影）的发生，通过加速调色剂载体上的显影后残留调色剂的收集来确保。发生在显影剂中的反电荷保持在显影剂中而不减少，直到显影剂移动到下游侧的第二调色剂载体，其中该反电荷是通过向第一调色剂载体中的第一调色剂载体显影剂载体的旋转方向。

5. 发明申请

US20100254725A1 DEVELOPMENT APPARATUS AND IMAGE FORMING APPARATUS 有权
标题翻译：开发设备和图像形成装置
公开(公告)号：US20100254725A1
公开(公告)日：2010-10-07
申请号：US12731316
申请日：2010-03-25
申请人： Shigeo UETAKE , Toshiya Natsuhara , Junya Hirayama , Takeshi Maeyama , Makiko Watanabe
发明人： Shigeo UETAKE , Toshiya Natsuhara , Junya Hirayama , Takeshi Maeyama , Makiko Watanabe
IPC分类号： G03G15/08
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。

6. 发明申请

US20100183343A1 DEVELOPMENT DEVICE AND IMAGE FORMING APPARATUS 有权
标题翻译：开发设备和图像形成装置
公开(公告)号：US20100183343A1
公开(公告)日：2010-07-22
申请号：US12644544
申请日：2009-12-22
申请人： SHIGEO UETAKE , Toshiya Natsuhara , Junya Hirayama , Takeshi Maeyama , Makiko Watanabe
发明人： SHIGEO UETAKE , Toshiya Natsuhara , Junya Hirayama , Takeshi Maeyama , Makiko Watanabe
IPC分类号： G03G15/09
CPC分类号： G03G15/0808 , G03G15/0928 , G03G2215/0609
摘要： Provided is a development device and an image forming apparatus that realize high image quality with improved decrease in density at high speed development and with reduced occurrence of development hysteresis (ghost) in the hybrid developing method having a plurality of toner carriers, by reducing the decrease in the toner supplying ability to the downstream-side toner carrier, which decrease is caused by the supply of toner to the toner carrier on the upstream side in the rotating direction of the developer carrier. By providing a magnetic pole between main magnetic poles, of the developer carrier, facing the toner carriers, a magnetically raised bristle of developer is moved by a magnetic force, while the developer in which development hysteresis due to supplying toner to the upstream-side toner carrier occurred is conveyed to supply toner to the downstream-side toner carrier, whereby the developer layer is stirred.
摘要翻译：提供了一种显影装置和图像形成装置，其通过降低降低的速度，在具有多个调色剂载体的混合显影方法中实现高图像质量，改善了高速显影下的密度降低和显影滞后（重影）的发生。在向下游侧调色剂载体的调色剂供给能力中，这是由于在显影剂载体的旋转方向上的上游侧向调色剂载体供应调色剂而引起的。通过在显影剂载体的主要磁极之间设置磁极，面对调色剂载体，磁力升高的显影剂刷毛通过磁力移动，而由于向上游侧调色剂供应调色剂而产生显影滞后的显影剂发送的载体被输送以向下游侧调色剂载体供给调色剂，从而搅拌显影剂层。

7. 发明申请

US20090285597A1 Developing device and image forming apparatus 有权
标题翻译：显影装置和图像形成装置
公开(公告)号：US20090285597A1
公开(公告)日：2009-11-19
申请号：US12387580
申请日：2009-05-05
申请人： Shigeo Uetake , Toshiya Natsuhara , Junya Hirayama , Takeshi Maeyama , Makiko Watanabe
发明人： Shigeo Uetake , Toshiya Natsuhara , Junya Hirayama , Takeshi Maeyama , Makiko Watanabe
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。

8. 发明授权

US08489004B2 Developer device and image forming apparatus 有权
标题翻译：显影装置和图像形成装置
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。

9. 发明申请

US20130078008A1 DEVELOPER DEVICE AND IMAGE FORMING APPARATUS 有权
标题翻译：开发者设备和图像形成装置
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。

10. 发明授权

US08335445B2 Development apparatus and image forming apparatus 有权
标题翻译：显影装置和图像形成装置
公开(公告)号：US08335445B2
公开(公告)日：2012-12-18
申请号：US12731316
申请日：2010-03-25
申请人： Shigeo Uetake , Toshiya Natsuhara , Junya Hirayama , Takeshi Maeyama , Makiko Watanabe
发明人： Shigeo Uetake , Toshiya Natsuhara , Junya Hirayama , Takeshi Maeyama , Makiko Watanabe
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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