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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。
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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。
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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。
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公开(公告)号：US20110222872A1
公开(公告)日：2011-09-15
申请号：US13039798
申请日：2011-03-03
IPC分类号： G03G15/08
CPC分类号： G03G15/0856 , G03G15/0853 , G03G15/0893
摘要： An image forming apparatus includes: a developing device; a toner supply device that supplies toner to the developing device; and a toner supply detecting sensor that detects whether toner is supplied into the developing device; and a toner empty determination controller for determining that the toner inside the toner supply device is used up. Toner empty determination controller, based on the output result from the toner supply detecting sensor, modifies the toner empty determining threshold, based on which toner empty is determined.
摘要翻译： 一种图像形成装置包括：显影装置; 调色剂供应装置，其向显影装置供应调色剂; 以及调色剂供给检测传感器，其检测是否向所述显影装置供应调色剂; 以及用于确定调色剂供应装置内的调色剂用完的调色剂空白判定控制器。 调色剂空判定控制器基于调色剂供应检测传感器的输出结果，根据确定了哪个调色剂空白来修改调色剂空确定阈值。
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公开(公告)号：US20120207490A1
公开(公告)日：2012-08-16
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
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。
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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
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。
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公开(公告)号：US08855508B2
公开(公告)日：2014-10-07
申请号：US13171720
申请日：2011-06-29
CPC分类号： G03G15/065 , G03G15/0131 , G03G15/0851 , G03G15/5041 , G03G15/5058 , G03G15/6505
摘要： Provided are an image forming apparatus that, when a difference between a developing bias in correcting an image density and a reference developing bias has a value not less than a prescribed value that is set preliminarily, replenishes or consumes a toner forcibly, executes correction of the image density again, and controls the developing bias in such a manner that a toner density is controlled to fall within an appropriate range, and an image forming method using the same. When a difference between a developing bias value after correction of the image density and the reference developing bias becomes larger than the prescribed value to the plus side or the minus side, a toner density control portion performs control to consume or replenish a toner forcibly.
摘要翻译： 提供一种图像形成装置，当校正图像浓度的显影偏压与基准显影偏压之间的差异具有不小于预先设定的规定值的值时，强制地补充或消耗调色剂，执行校正 并且以使得调色剂浓度被控制在适当范围内的方式控制显影偏压，以及使用其的图像形成方法。 当校正图像浓度的显影偏压值与基准显影偏压之间的差异大于正侧或负侧的规定值时，调色剂浓度控制部分进行强制消耗或补充调色剂的控制。
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公开(公告)号：US20090010683A1
公开(公告)日：2009-01-08
申请号：US12165852
申请日：2008-07-01
CPC分类号： G03G15/0921 , G03G15/0812 , G03G15/0928
摘要： A developing device includes a developing roller and a blade. The developing roller includes: a developing sleeve which rotates while holding two-component developer composed of toner and magnetic carrier on the outer surface having a plurality of grooves extending in parallel to an axis of the rotation; and a magnetic member, provided inside the developing sleeve in such a manner as to be unrotatable, for attracting the two-component developer onto the outer surface of the developing sleeve. The blade is provided outside the rotating sleeve with a gap from the outer surface of the developing sleeve for scraping off a part of the two-component developer on the outer surface of the developing sleeve. Also, the magnetic member includes a magnet for controlling magnetic flux density in the gap to range from 70 mT to 150 mT. This allows preventing image degradation caused by generation of development memory.
摘要翻译： 显影装置包括显影辊和刮板。 显影辊包括：显影套筒，其在外表面上保持由调色剂和磁性载体构成的双组分显影剂而旋转，其具有平行于旋转轴线延伸的多个凹槽; 以及磁性构件，其设置在显影套筒内部以使其不可旋转的方式用于将双组分显影剂吸引到显影套筒的外表面上。 叶片设置在旋转套筒的外部，与显影套筒的外表面间隔开，以刮除显影套筒外表面上的一部分双组分显影剂。 此外，磁性构件包括用于将间隙中的磁通密度控制在70mT至150mT范围内的磁体。 这允许防止由于生成开发内存而导致的图像劣化。
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9.发明申请Developing device, image forming apparatus including the same and developing method 有权显影装置，包括其的成像装置和显影方法公开(公告)号：US20090010669A1
公开(公告)日：2009-01-08
申请号：US12217449
申请日：2008-07-03
IPC分类号： G03G15/00
CPC分类号： G03G15/0851 , G03G15/0853
摘要： The change in an output voltage when a control voltage is changed is calculated, and the change in the control voltage divided by the calculated change in the output voltage is defined as a sensitivity coefficient. The sensitivity coefficient is recalculated for each predetermined time interval or whenever a predetermined condition is satisfied, and the control voltage is corrected based on the recalculated sensitivity coefficient. Example of the predetermined condition include the time of start-up of the apparatus, the time at which the accumulated number of printed sheets reaches a predetermined number, and the time of carrying out process control.
摘要翻译： 计算控制电压变化时的输出电压的变化，将控制电压除以计算出的输出电压的变化量的变化定义为灵敏度系数。 每个预定时间间隔或每当满足预定条件时重新计算灵敏度系数，并且基于重新计算的灵敏度系数校正控制电压。 预定条件的示例包括装置的启动时间，累计打印的纸张数达到预定数量的时间以及进行处理控制的时间。
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公开(公告)号：US20080103257A1
公开(公告)日：2008-05-01
申请号：US11930561
申请日：2007-10-31
CPC分类号： G03G21/0017 , C08L27/18 , C08L67/025 , C08L2666/04
摘要： In an image forming apparatus comprising a charging section, an exposure section, a developing section, a transfer section, a peeling section, a cleaning section including a cleaning blade, and a fixing section, the cleaning blade is composed by dispersing 15 parts by weight through 33 parts by weight of fluorine resin particulate and secondary particles thereof into 100 parts by weight of a synthetic resin of a base material and, on a surface of the cleaning blade 16a, and a number of the secondary particles of the fluorine resin particulate having a particle diameter of 0.5 μm or more existing in unit area of 100 μm2 is made to be 50 or less.
摘要翻译： 在包括充电部分，曝光部分，显影部分，转印部分，剥离部分，包括清洁刮板的清洁部分和固定部分的图像形成装置中，清洁刮板由15重量份 通过将33重量份的氟树脂颗粒和二次颗粒加入到100重量份的基材的合成树脂中，并且在清洁刮板16a的表面上和多个氟树脂颗粒的二次颗粒 以100umum 2的单位面积存在的粒径为0.5μm以上的粒径为50以下。
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