公开(公告)号：US20110123204A1

公开(公告)日：2011-05-26

申请号：US12912949

申请日：2010-10-27

申请人： Kazuma HINOUE ,  Motoyuki Itoyama ,  Masayasu Narimatsu ,  Kohichi Takenouchi ,  Hideji Saikoh ,  Takeshi Ohkawa ,  Kiyofumi Morimoto ,  Tomoki Minamikawa ,  Mitsuru Tokuyama

发明人： Kazuma HINOUE ,  Motoyuki Itoyama ,  Masayasu Narimatsu ,  Kohichi Takenouchi ,  Hideji Saikoh ,  Takeshi Ohkawa ,  Kiyofumi Morimoto ,  Tomoki Minamikawa ,  Mitsuru Tokuyama

IPC分类号： G03G15/08

CPC分类号： G03G15/556 ,  G03G15/0868 ,  G03G15/0875 ,  G03G15/0879 ,  G03G2215/066

摘要： An image forming apparatus includes a developing device having a toner supply sensor, a toner supply device supplying toner to the developing device, a toner supply controller controlling toner supply from the toner supply device to the developing device based on predetermined conditions, a toner empty determiner determining whether toner is present inside the toner supply device. In the image forming apparatus, the toner supply device includes a storage for recoding multiple measured values of toner supply detected by the toner supply sensor, and the toner supply controller corrects the amount of toner supply, based on the moving average of multiple measured values of the amount of toner supply.

摘要翻译： 图像形成装置包括具有调色剂供给传感器的显影装置，向显影装置供应调色剂的调色剂供给装置，调色剂供给控制器，其基于预定条件控制从调色剂供给装置向显影装置供给的调色剂供给控制器; 确定调色剂是否存在于调色剂供应装置内。 在图像形成装置中，调色剂供给装置包括用于记录由调色剂供给传感器检测到的多个调色剂供应量值的存储器，并且调色剂供给控制器基于多个测量值的移动平均值来校正调色剂供给量 调色剂供应量。

公开(公告)号：US20100196056A1

公开(公告)日：2010-08-05

申请号：US12695363

申请日：2010-01-28

申请人： Takeshi OHKAWA ,  Mitsuru Tokuyama ,  Motoyuki Itoyama

发明人： Takeshi OHKAWA ,  Mitsuru Tokuyama ,  Motoyuki Itoyama

IPC分类号： G03G15/08 ,  G03G15/095

CPC分类号： G03G15/0887 ,  G03G15/0893 ,  G03G2215/0822

摘要： A developing device includes a developer tank for housing a two-component developer containing toner and magnetic carrier; a first conveying portion having a first rotary shaft rotatable about its axis and a first screw blade which surrounds the first rotary shaft and rotates together with the first rotary shaft and contains a ferromagnetic substance; a second conveying portion having a second rotary shaft rotatable about its axis and a second screw blade which surrounds the second rotary shaft and rotates together with the second rotary shaft and contains a ferromagnetic substance; a first electromagnet for magnetizing the first screw blade; and a second electromagnet for magnetizing the second screw blade.

摘要翻译： 显影装置包括用于容纳含有调色剂和磁性载体的双组分显影剂的显影剂罐; 第一传送部分，具有可围绕其轴线旋转的第一旋转轴和围绕第一旋转轴并与第一旋转轴一起旋转并包含铁磁性物质的第一螺旋叶片; 第二传送部分，具有可围绕其轴线旋转的第二旋转轴和围绕第二旋转轴并与第二旋转轴一起旋转并包含铁磁物质的第二螺旋叶片; 用于磁化第一螺旋叶片的第一电磁体; 以及用于磁化第二螺旋叶片的第二电磁体。

公开(公告)号：US07619791B2

公开(公告)日：2009-11-17

申请号：US10547338

申请日：2004-03-02

申请人： Motoyuki Itoyama ,  Syouichi Fujita ,  Hirofumi Sakita ,  Shuichi Morikuni

发明人： Motoyuki Itoyama ,  Syouichi Fujita ,  Hirofumi Sakita ,  Shuichi Morikuni

IPC分类号： H04N1/46 ,  G03G15/10 ,  G03G15/22

CPC分类号： G03G15/065 ,  G03G2215/00037

摘要： A reference developing image is formed on a photoreceptor drum under an image forming condition measured in advance, and the density of this reference developing image is detected. A development bias voltage is corrected based on the detection result, and when a correction value of the development bias voltage exceeds a predetermined range, a reference output voltage of an ATC sensor for detecting the density of toner in a developing device is corrected based on the detected value of humidity around the developing device, the frequency of use of the apparatus, and the agitation stress of developer.

摘要翻译： 在预先测量的图像形成条件下在感光鼓上形成参考显影图像，并检测该参考显影图像的浓度。 基于检测结果校正显影偏压，并且当显影偏压的校正值超过预定范围时，基于显影偏压的显影偏压的调色剂的基准输出电压校正用于检测显影装置中的调色剂浓度的ATC传感器的基准输出电压 显影装置周围湿度的检测值，装置的使用频率和显影剂的搅拌应力。

公开(公告)号：US5402209A

公开(公告)日：1995-03-28

申请号：US102344

申请日：1993-08-05

申请人： Motoyuki Itoyama ,  Mitsuru Tokuyama ,  Toshiaki Ino ,  Kunio Ohashi

发明人： Motoyuki Itoyama ,  Mitsuru Tokuyama ,  Toshiaki Ino ,  Kunio Ohashi

IPC分类号： G01N21/47 ,  G03G15/00 ,  G03G15/04 ,  G03G15/043 ,  G03G15/06 ,  G03G15/08 ,  G03G21/00

CPC分类号： G03G15/0822 ,  G03G15/5037 ,  G03G2215/00042

摘要： An apparatus includes a system controller which calculates a ratio of a first signal to a second signal and adjusts a control parameter of an electrophotographic reproduction process so that the density of fog indicated by the ratio is within a predetermined range. A first optical sensor outputs the first signal by detecting a reflectance of a non-image area on the photoreceptor between a developing unit and a transfer charger. A second optical sensor outputs the second signal by detecting a reflectance of a surface of the photoreceptor between a cleaning unit and a charger. The system controller controls developer including toner and carrier to be agitated when the ratio obtained after adjusting the control parameter is still outside the predetermined range. Since the density of fog is detected with accuracy by calculating the ratio, copy quality is stabilized even when temperature changes. Moreover, even if the ratio is outside the predetermined range as a result of the supply of toner which has deteriorated due to a heat history, the deterioration of toner is restored by agitating the developer. It is thus possible to prevent copy quality from being degraded.

摘要翻译： 一种装置包括：系统控制器，其计算第一信号与第二信号的比率，并调整电子照相再现处理的控制参数，使得由比率指示的雾度浓度在预定范围内。 第一光学传感器通过检测显影单元和转印充电器之间的感光体上的非图像区域的反射率来输出第一信号。 第二光学传感器通过检测清洁单元和充电器之间的感光体的表面的反射率来输出第二信号。 当调整控制参数后获得的比例仍然在预定范围之外时，系统控制器控制显影剂，包括调色剂和载体被搅拌。 由于通过计算比例来精确地检测雾的浓度，即使温度变化，复印质量也被稳定。 此外，由于由于热历史而劣化的调色剂的供给，即使该比例在预定范围之外，也可以通过搅拌显影剂来恢复调色剂的劣化。 因此，可以防止复制品质恶化。

公开(公告)号：US08867934B2

公开(公告)日：2014-10-21

申请号：US13372856

申请日：2012-02-14

申请人： Motoyuki Itoyama ,  Kazuma Hinoue ,  Hideji Saikoh

发明人： Motoyuki Itoyama ,  Kazuma Hinoue ,  Hideji Saikoh

IPC分类号： G03G15/08 ,  G03G15/00

CPC分类号： G03G15/556 ,  G03G15/086 ,  G03G15/0893 ,  G03G2215/0609

摘要： The image forming apparatus carries out a monitoring operation in which (i) sensor outputs of the magnetic permeability sensor are periodically sampled, (ii) a time period, corresponding to one (1) circulation period which is required for the developer to be circulated once in the circulation carrying path, is evenly divided into a plurality of blocks, and (iii) an average of the sensor outputs in one (1) block time period corresponding to one (1) block is calculated for each of the plurality of blocks; and determines that toner has run short, in a case where the number of times that the averages of the sensor outputs consecutively exceed a threshold, set to be higher than a reference value of the sensor outputs, becomes not less than the number of the plurality of blocks which correspond to the time period corresponding to one (1) circulation period.

摘要翻译： 图像形成装置执行监视操作，其中（i）磁导率传感器的传感器输出被周期性地采样，（ii）对应于显影剂要循环一次所需的一（1）循环周期的时间段 在循环传送路径中，被均匀地划分为多个块，并且（iii）针对多个块中的每个块计算对应于一（1）块的一个块时间段中的传感器输出的平均值; 并且在传感器输出的平均值连续超过设定为高于传感器输出的基准值的阈值的次数的情况下，确定调色剂已经不足，变得不小于多个 对应于与一（1）循环周期相对应的时间段的块。

公开(公告)号：US08406641B2

公开(公告)日：2013-03-26

申请号：US12912949

申请日：2010-10-27

申请人： Kazuma Hinoue ,  Motoyuki Itoyama ,  Masayasu Narimatsu ,  Kohichi Takenouchi ,  Hideji Saikoh ,  Takeshi Ohkawa ,  Kiyofumi Morimoto ,  Tomoki Minamikawa ,  Mitsuru Tokuyama

发明人： Kazuma Hinoue ,  Motoyuki Itoyama ,  Masayasu Narimatsu ,  Kohichi Takenouchi ,  Hideji Saikoh ,  Takeshi Ohkawa ,  Kiyofumi Morimoto ,  Tomoki Minamikawa ,  Mitsuru Tokuyama

IPC分类号： G03G15/08

CPC分类号： G03G15/556 ,  G03G15/0868 ,  G03G15/0875 ,  G03G15/0879 ,  G03G2215/066

摘要： An image forming apparatus includes a developing device having a toner supply sensor, a toner supply device supplying toner to the developing device, a toner supply controller controlling toner supply from the toner supply device to the developing device based on predetermined conditions, a toner empty determiner determining whether toner is present inside the toner supply device. In the image forming apparatus, the toner supply device includes a storage for recording multiple measured values of toner supply detected by the toner supply sensor, and the toner supply controller corrects the amount of toner supply, based on the moving average of multiple measured values of the amount of toner supply.

摘要翻译： 图像形成装置包括具有调色剂供给传感器的显影装置，向显影装置供应调色剂的调色剂供给装置，调色剂供给控制器，其基于预定条件控制从调色剂供给装置向显影装置供给的调色剂供给控制器; 确定调色剂是否存在于调色剂供应装置内。 在图像形成装置中，调色剂供给装置包括用于记录由调色剂供给传感器检测到的多个调色剂供给量的存储器，并且调色剂供给控制器基于多个测量值的移动平均值来校正调色剂供给量 调色剂供应量。

公开(公告)号：US20110262155A1

公开(公告)日：2011-10-27

申请号：US13079099

申请日：2011-04-04

申请人： Kazuma Hinoue ,  Motoyuki Itoyama ,  Hideji Saikoh ,  Takeshi Ohkawa

发明人： Kazuma Hinoue ,  Motoyuki Itoyama ,  Hideji Saikoh ,  Takeshi Ohkawa

IPC分类号： G03G15/08

CPC分类号： G03G15/0853 ,  G03G15/0856

摘要： An image forming apparatus can prevent printed images from being degraded in image quality due to failure of the toner concentration to fall within a proper range, by correcting the deviations of the amount of toner consumption and the amount of toner supply depending on the individuality of each image forming apparatus and that enables exact identification of the cause of a fault associated with toner concentration, as well as providing an image forming method using the apparatus. A toner supply device supplies toner to a developing vessel through an opening in accordance with an instruction from a controller. The presence or absence of toner falling is detected based on the variation of the output from a magnetic permeability sensor when toner is supplied. The controller monitors the output voltage level of the magnetic permeability sensor and adjusts the input gain in accordance with the output voltage level to thereby control toner concentration.

摘要翻译： 图像形成装置可以通过根据每个色调剂的个性来校正调色剂消耗量和调色剂供应量的偏差，从而防止由于调色剂浓度的故障而使图像质量下降的图像质量下降到适当的范围内 图像形成装置，并且能够精确地识别与调色剂浓度相关的故障的原因，以及提供使用该装置的图像形成方法。 调色剂供应装置根据来自控制器的指令通过开口向显影容器供应调色剂。 基于当提供调色剂时来自磁导率传感器的输出的变化来检测是否存在调色剂下降。 控制器监视磁导率传感器的输出电压电平，并根据输出电压电平调节输入增益，从而控制调色剂浓度。

公开(公告)号：US07356268B2

公开(公告)日：2008-04-08

申请号：US11326371

申请日：2006-01-06

申请人： Motoyuki Itoyama

发明人： Motoyuki Itoyama

IPC分类号： G03G15/08 ,  G03G15/00

CPC分类号： G03G15/0848 ,  G03G15/0853 ,  G03G2215/0634

摘要： A controller determines the degree of acuteness of the resonant oscillation of a piezoelectric oscillator, based on the developer's fluidity detection data detected by the piezoelectric oscillator. The toner density output data detected by a toner density sensor is modified to a correct value, based on the degree of acuteness, and a supply roller is controlled based on this corrected value so as to implement the necessary toner supply.

摘要翻译： 控制器基于由压电振荡器检测到的显影剂的流动性检测数据来确定压电振荡器的谐振振荡的准确度。 由调色剂浓度传感器检测出的调色剂浓度输出数据基于酸度而被修改为正确的值，并且基于该校正值控制供应辊，以便实现所需的调色剂供应。

公开(公告)号：US08923715B2

公开(公告)日：2014-12-30

申请号：US13079157

申请日：2011-04-04

申请人： Motoyuki Itoyama ,  Kiyofumi Morimoto ,  Takeshi Ohkawa ,  Tomoki Minamikawa

发明人： Motoyuki Itoyama ,  Kiyofumi Morimoto ,  Takeshi Ohkawa ,  Tomoki Minamikawa

IPC分类号： G03G15/10 ,  G03G15/00 ,  G03G15/08

CPC分类号： G03G15/556 ,  G03G15/0849 ,  G03G15/0853 ,  G03G15/0856 ,  G03G15/0893 ,  G03G15/553 ,  G03G2215/00721

摘要： An image forming apparatus includes: a developing device having a developing vessel, a developing roller and a toner supply port; a toner supply device; a toner supply detecting sensor for detecting the toner concentration inside the developing vessel; a toner concentration controller for directing toner supply; a toner empty detector; and a sheet conveyance detecting sensor. The toner concentration controller has a toner supply device control function; and a toner supply stopping function of stopping toner supply when the last sheet of image printout being executed has passed by the predetermined position in the sheet conveyance path.

摘要翻译： 一种图像形成装置包括：具有显影容器，显影辊和调色剂供给口的显影装置; 调色剂供应装置; 调色剂供应检测传感器，用于检测显影容器内的调色剂浓度; 用于引导调色剂供应的调色剂浓度控制器; 墨粉空探测器; 和片材输送检测传感器。 调色剂浓度控制器具有调色剂供应装置控制功能; 以及当执行的最后一张图像打印输出已经经过纸张传送路径中的预定位置时停止调色剂供应的调色剂供应停止功能。

公开(公告)号：US08634730B2

公开(公告)日：2014-01-21

申请号：US13079099

申请日：2011-04-04

申请人： Kazuma Hinoue ,  Motoyuki Itoyama ,  Hideji Saikoh ,  Takeshi Ohkawa

发明人： Kazuma Hinoue ,  Motoyuki Itoyama ,  Hideji Saikoh ,  Takeshi Ohkawa

IPC分类号： G03G15/08

CPC分类号： G03G15/0853 ,  G03G15/0856

摘要： An image forming apparatus prevents printed images from being degraded in image quality due to failure of the toner concentration to fall within a proper range, by correcting the deviations of the amount of toner consumption and the amount of toner supply depending on the individuality of each image forming apparatus and that enables exact identification of the cause of a fault associated with toner concentration, and providing an image forming method using the apparatus. A toner supply device supplies toner to a developing vessel through an opening in accordance with an instruction from a controller. The presence or absence of toner falling is detected based on the variation of the output from a magnetic permeability sensor when toner is supplied. The controller monitors the output voltage level of the magnetic permeability sensor and adjusts the input gain in accordance with the output voltage level to thereby control toner concentration.

摘要翻译： 图像形成装置通过根据每个图像的个性校正调色剂消耗量和调色剂供应量的偏差，防止由于调色剂浓度的故障而使图像质量下降的图像质量下降到适当的范围内 并且能够精确地识别与调色剂浓度相关的故障的原因，并且提供使用该装置的图像形成方法。 调色剂供应装置根据来自控制器的指令通过开口向显影容器供应调色剂。 基于当提供调色剂时来自磁导率传感器的输出的变化来检测是否存在调色剂下降。 控制器监视磁导率传感器的输出电压电平，并根据输出电压电平调节输入增益，从而控制调色剂浓度。