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11. 发明授权

US07356268B2 Developing device 有权
标题翻译：开发设备
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。

12. 发明授权

US08660448B2 Image forming apparatus and image forming method 有权
标题翻译：图像形成装置及图像形成方法
公开(公告)号：US08660448B2
公开(公告)日：2014-02-25
申请号：US13363708
申请日：2012-02-01
申请人： Masayuki Otsuka , Takashi Kitagawa , Motoyuki Itoyama
发明人： Masayuki Otsuka , Takashi Kitagawa , Motoyuki Itoyama
IPC分类号： G03G15/06
CPC分类号： G03G15/5041 , G03G15/5037
摘要： An image forming apparatus includes a photoreceptor, a developing apparatus, a developing bias supply power source, a control section for controlling a developing bias, a density sensor, and an arithmetic section. When an image density adjustment operation is performed, the arithmetic section determines a print-time developing bias in accordance with a detection result obtained by detecting, by the density sensor, a plurality of image density adjustment toner images formed by changing a developing bias. The print-time developing bias is set by the control section when printing is performed. also, In a case where a previous print-time developing bias falls within at least a low range of a predetermined range of the developing bias, the arithmetic section determines the print-time developing bias to a value between a reference developing bias for a target image density and the previous print-time developing bias.
摘要翻译：图像形成装置包括感光体，显影装置，显影偏压供给源，用于控制显影偏压的控制部，密度传感器和运算部。当执行图像浓度调整操作时，运算部根据通过密度传感器检测通过改变显影偏压形成的多个图像浓度调节调色剂图像获得的检测结果来确定打印时显影偏压。当执行打印时，打印时间显影偏压由控制部分设定。此外，在先前的打印时间显影偏压落入显影偏压的预定范围的至少低范围的情况下，运算部将印刷时显影偏压确定为目标的参考显影偏压之间的值图像密度和以前的打印时间显影偏差。

13. 发明申请

US20120207490A1 METHOD FOR JUDGING TONER SHORTAGE AND IMAGE FORMING APPARATUS 有权
标题翻译：评估墨粉短路和图像形成装置的方法
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。

14. 发明申请

US20120201556A1 IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD 有权
标题翻译：图像形成装置和图像形成方法
公开(公告)号：US20120201556A1
公开(公告)日：2012-08-09
申请号：US13363708
申请日：2012-02-01
申请人： Masayuki OTSUKA , Takashi Kitagawa , Motoyuki Itoyama
发明人： Masayuki OTSUKA , Takashi Kitagawa , Motoyuki Itoyama
IPC分类号： G03G15/06
CPC分类号： G03G15/5041 , G03G15/5037
摘要： An image forming apparatus includes a photoreceptor, a developing apparatus, a developing bias supply power source, a control section for controlling a developing bias, a density sensor, and an arithmetic section. When an image density adjustment operation is performed, the arithmetic section determines a print-time developing bias in accordance with a detection result obtained by detecting, by the density sensor, a plurality of image density adjustment toner images formed by changing a developing bias. The print-time developing bias is set by the control section when printing is performed. also, In a case where a previous print-time developing bias falls within at least a low range of a predetermined range of the developing bias, the arithmetic section determines the print-time developing bias to a value between a reference developing bias for a target image density and the previous print-time developing bias.
摘要翻译：图像形成装置包括感光体，显影装置，显影偏压供给源，用于控制显影偏压的控制部，密度传感器和运算部。当执行图像浓度调整操作时，运算部根据通过密度传感器检测通过改变显影偏压形成的多个图像浓度调节调色剂图像获得的检测结果来确定打印时显影偏压。当执行打印时，打印时间显影偏压由控制部分设定。此外，在先前的打印时间显影偏压落入显影偏压的预定范围的至少低范围的情况下，运算部将印刷时显影偏压确定为目标的参考显影偏压之间的值图像密度和以前的打印时间显影偏差。

15. 发明申请

US20110058824A1 IMAGE FORMING APPARATUS 审中-公开
标题翻译：图像形成装置
公开(公告)号：US20110058824A1
公开(公告)日：2011-03-10
申请号：US12855022
申请日：2010-08-12
申请人： Kiyofumi Morimoto , Takeshi Ohkawa , Motoyuki Itoyama , Hideji Saikoh
发明人： Kiyofumi Morimoto , Takeshi Ohkawa , Motoyuki Itoyama , Hideji Saikoh
IPC分类号： G03G15/08
CPC分类号： G03G15/0887 , G03G15/0849 , G03G15/0853 , G03G15/0877 , G03G15/0893 , G03G2215/0838
摘要： An image forming apparatus includes: a developing device; a toner supply device that supplies toner to the developing device; a toner concentration controller that directs the toner supply device to perform toner supply to the developing device; and a toner empty determiner for determining that no toner is left in the toner supply device. The developing device includes a toner supply detecting sensor that detects whether toner is supplied from the toner supply device into the developer container, in the developer container. The toner concentration controller gives directions to perform the toner supply when the toner concentration of the developer in the developing device has become lower than a predetermined level. The toner empty determiner determines that the toner supply device has no toner left therein when no effect of the toner supply is detected by the toner supply detecting sensor after the toner supply is directed by the toner concentration controller. The toner supply detecting sensor is disposed in the preliminary agitating section.
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; 调色剂浓度控制器，其引导调色剂供应装置对显影装置进行调色剂供应; 以及用于确定调色剂供应装置中没有剩余调色剂的调色剂空的确定器。显影装置包括调色剂供应检测传感器，其检测在显影剂容器中是否将调色剂从调色剂供应装置供应到显影剂容器中。当显影装置中的显影剂的调色剂浓度已经变得低于预定水平时，调色剂浓度控制器给出执行调色剂供给的方向。在由调色剂浓度控制器引导调色剂供应之后，当调色剂供给检测传感器没有检测到调色剂供应的影响时，调色剂空的确定器确定调色剂供应装置没有剩余的调色剂。调色剂供给检测传感器设置在初步搅拌部中。

16. 发明授权

US07697854B2 Image forming apparatus with variable process speed 有权
标题翻译：具有可变过程速度的成像设备
公开(公告)号：US07697854B2
公开(公告)日：2010-04-13
申请号：US12041702
申请日：2008-03-04
申请人： Motoyuki Itoyama , Syouichi Fujita , Mitsuhiro Murata
发明人： Motoyuki Itoyama , Syouichi Fujita , Mitsuhiro Murata
IPC分类号： G03G15/00 , G03G15/08
CPC分类号： G03G15/5008 , G03G15/0849 , G03G15/0853 , G03G2215/00084
摘要： An image forming apparatus is provided which is capable of forming higher-quality images by detecting a toner concentration with higher accuracy to attain appropriate toner supply and image density. A value obtained by adding a correction value based on a temperature, humidity, a print coverage, or the like to a developer concentration adjustment value is set as a control voltage value Vc which is to be inputted to a toner concentration sensor, and an output value of the toner concentration sensor is detected for each of process speeds. A difference between the output value detected and a value at reference process speed is calculated and based on the difference, a correction value is further calculated. Such another calculation of the correction value with use of the output value detected allows for highly accurate correction.
摘要翻译：提供一种图像形成装置，其能够通过以更高的精度检测调色剂浓度来形成更高质量的图像，以获得适当的调色剂供应和图像浓度。通过将基于温度，湿度，打印覆盖率等的校正值添加到显影剂浓度调整值而获得的值被设置为要输入到调色剂浓度传感器的控制电压值Vc，并且输出针对每个处理速度检测调色剂浓度传感器的值。计算检测到的输出值与参考处理速度之间的差值，并根据差值，进一步计算校正值。使用检测到的输出值进行的校正值的另一种计算允许高度准确的校正。

17. 发明授权

US08923715B2 Image forming apparatus and image forming method 有权
标题翻译：图像形成装置及图像形成方法
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。

18. 发明授权

US08634730B2 Image forming apparatus and image forming method using the same 有权
标题翻译：图像形成装置及使用其的图像形成方法
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。

19. 发明申请

US20080219684A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20080219684A1
公开(公告)日：2008-09-11
申请号：US12041702
申请日：2008-03-04
申请人： Motoyuki Itoyama , Syouichi Fujita , Mitsuhiro Murata
发明人： Motoyuki Itoyama , Syouichi Fujita , Mitsuhiro Murata
IPC分类号： G03G15/08
CPC分类号： G03G15/5008 , G03G15/0849 , G03G15/0853 , G03G2215/00084
摘要： An image forming apparatus is provided which is capable of forming higher-quality images by detecting a toner concentration with higher accuracy to attain appropriate toner supply and image density. A value obtained by adding a correction value based on a temperature, humidity, a print coverage, or the like to a developer concentration adjustment value is set as a control voltage value Vc which is to be inputted to a toner concentration sensor, and an output value of the toner concentration sensor is detected for each of process speeds. A difference between the output value detected and a value at reference process speed is calculated and based on the difference, a correction value is further calculated. Such another calculation of the correction value with use of the output value detected allows for highly accurate correction.
摘要翻译：提供一种图像形成装置，其能够通过以更高的精度检测调色剂浓度来形成更高质量的图像，以获得适当的调色剂供应和图像浓度。通过将基于温度，湿度，打印覆盖率等的校正值添加到显影剂浓度调整值而获得的值被设置为要输入到调色剂浓度传感器的控制电压值Vc，并且输出针对每个处理速度检测调色剂浓度传感器的值。计算检测到的输出值与参考处理速度之间的差值，并根据差值，进一步计算校正值。使用检测到的输出值进行的校正值的另一种计算允许高度准确的校正。

20. 发明申请

US20060177235A1 Developing device 有权
标题翻译：开发设备
公开(公告)号：US20060177235A1
公开(公告)日：2006-08-10
申请号：US11326371
申请日：2006-01-06
申请人： Motoyuki Itoyama
发明人： Motoyuki Itoyama
IPC分类号： G03G15/09
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。

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