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21. 发明申请

US20050220470A1 Charging device and image forming apparatus provided therewith 有权
标题翻译：充电装置和与其成像的图像形成装置
公开(公告)号：US20050220470A1
公开(公告)日：2005-10-06
申请号：US10923872
申请日：2004-08-24
申请人： Akira Hirota , Kentaro Katori , Masahiko Matsuura
发明人： Akira Hirota , Kentaro Katori , Masahiko Matsuura
IPC分类号： G03G15/02
CPC分类号： G03G15/0266 , G03G2215/0119
摘要： An image forming apparatus has a charging member opposed to an outer circumferential surface of a rotating object to be charged. The image forming apparatus has a voltage applying section for applying a pulsating voltage Vsp between the charging member and the object to be charged. The pulsating voltage Vsp is obtained by superimposing a voltage component of a direct current on a voltage component that periodically changes. The image forming apparatus is made to satisfy a relation of Vpp≦|Vth|, where Vpp is a peak-to-peak voltage value of the pulsating voltage Vsp and Vth is a charging start voltage value of the object to be charged. The relation prevents opposite charge from being imparted to residual toner on the object to be charged.
摘要翻译：图像形成装置具有与被充电的旋转体的外周面相对的充电部件。图像形成装置具有用于在充电部件和被充电对象之间施加脉动电压Vsp的电压施加部。通过将直流电压分量叠加在周期性变化的电压分量上来获得脉动电压Vsp。使图像形成装置满足Vpp <= | Vth |的关系，其中Vpp是脉动电压Vsp的峰 - 峰值电压值，Vth是待充电对象的充电开始电压值。该关系防止相反的电荷被赋予待充电物体上的残留调色剂。

22. 发明授权

US5950056A Developing device provided with three developer transport members 失效
标题翻译：具有三个开发者运输成员的开发设备
公开(公告)号：US5950056A
公开(公告)日：1999-09-07
申请号：US97811
申请日：1998-06-16
申请人： Suguru Hamamichi , Mineyuki Sako , Kentaro Katori , Shinichi Yoshimoto
发明人： Suguru Hamamichi , Mineyuki Sako , Kentaro Katori , Shinichi Yoshimoto
IPC分类号： G03G15/08
CPC分类号： G03G15/0822 , G03G2215/0822
摘要： A developing device capable of preventing a reduction of image quality due to disparities in image density or fogging and the like that result from an nonuniform toner concentration or static charge status due to inadequate mixing of a developer. The developing device is provided with a mixing screw for mixing a developer separately from a supply screw for supplying a developer to a developing roller and a collection screw for collecting a developer from the developing roller, the transport direction of the mixing screw being opposite to the transport direction of the supply screw and collection screw.
摘要翻译：一种能够防止由于显影剂混合不充分而导致由调色剂浓度不均匀或静电充电状态引起的图像浓度或起雾等不均造成的图像质量降低的显影装置。显影装置设置有用于将显影剂与用于将显影剂供应到显影辊的供应螺杆分开的显影剂混合器和用于从显影辊收集显影剂的收集螺杆，混合螺杆的输送方向与供应螺丝和收集螺丝的运输方向。

23. 发明授权

US07324776B2 Image forming apparatus, charge controlling apparatus, and image forming method 有权
标题翻译：图像形成装置，电荷控制装置和图像形成方法
公开(公告)号：US07324776B2
公开(公告)日：2008-01-29
申请号：US11028746
申请日：2005-01-05
申请人： Akira Hirota , Hiroaki Umemoto , Noritoshi Hagimoto , Kuniya Matsuura , Naotoshi Kawai , Kentaro Katori
发明人： Akira Hirota , Hiroaki Umemoto , Noritoshi Hagimoto , Kuniya Matsuura , Naotoshi Kawai , Kentaro Katori
IPC分类号： G03G21/00
CPC分类号： G03G21/0064
摘要： A color printer including, a conductive brush roller to contact a photosensitive drum at a position downstream of a transferring apparatus and upstream of a charging apparatus, wherein at least part of residual toner is collected after temporarily transferring on the photosensitive drum, and the collected toner is expelled onto the photosensitive drum, a charge electrode facing the brush roller at a position other than the contact position of the photosensitive drum and the brush roller, and a power source to apply voltage to the charge electrode, wherein the polarity of the voltage applied from the power source to the charge electrode with respect to the average voltage of the surface of the photosensitive drum after transferring is the same as a charging polarity of the toner at developing.
摘要翻译：一种彩色打印机，包括：导电刷辊，用于在转印装置的下游位置和充电装置的上游接触感光鼓，其中至少部分残留调色剂在感光鼓上暂时转印后收集，并且收集的调色剂被排出到感光鼓上，在除了感光鼓和刷辊的接触位置之外的位置处的面向刷辊的充电电极以及向充电电极施加电压的电源，其中施加的电压的极性相对于转印后的感光鼓表面的平均电压，从电源到充电电极与显影时的调色剂的充电极性相同。

24. 发明授权

US07136599B2 Developing apparatus, image forming apparatus, and developing method 失效
标题翻译：显影装置，成像装置和显影方法
公开(公告)号：US07136599B2
公开(公告)日：2006-11-14
申请号：US10981646
申请日：2004-11-05
申请人： Masahiko Matsuura , Kentaro Katori
发明人： Masahiko Matsuura , Kentaro Katori
IPC分类号： G03G15/06
CPC分类号： G03G15/065
摘要： It is intended to provide a developing apparatus, an image forming apparatus and developing method capable of managing both decrease of load on apparatuses and improvement of image quality in case development of an image is made by applying contact developing and AC developing. For that intention, voltage at a portion between a development member and an image carrier is defined oscillating voltage, and in case negative polarity toner is used, relations of peak voltage V1 of oscillating voltage, background portion voltage VH (negative) and visible section voltage VL (negative, an absolute value of it is smaller than that of VH) are set as indicated below. −500V≦V1−VL≦−350V −200V≦V1−VH≦−50V On the above conditions, peak voltage V2 is set as indicated below. −150V≦VL−V2≦−70V V2≦VH+500V.
摘要翻译：旨在提供一种显影装置，图像形成装置和显影方法，其能够通过应用接触显影和AC显影来进行图像的发展，同时管理装置的负载减少和图像质量的提高。为了这个意图，显影元件和图像载体之间的部分的电压被定义为振荡电压，并且在使用负极性调色剂的情况下，振荡电压的峰值电压V 1，背景部分电压VH（负）和可见部分电压VL（负，其绝对值小于VH的绝对值）如下所示设定。 <？in-line-formula description =“In-line formula”end =“lead”？> - 500V <= V1-VL <= - 350V <？in-line-formula description =“In-line Formulas”end = “tail”？> <？in-line-formula description =“In-line Formulas”end =“lead”？> - 200V <= V1-VH <= - 50V <？in-line-formula description = 线公式“end =”tail“？>在上述条件下，峰值电压V 2如下所示设定。 <？in-line-formula description =“In-line formula”end =“lead”？> - 150V <= VL-V2 <= - 70V <？in-line-formula description =“In-line Formulas”end = “tail”？> <？in-line-formula description =“In-line Formulas”end =“lead”？> V2 <= VH + 500V。<？in-line-formula description =“In-line Formulas”end =“尾巴”？>

25. 发明申请

US20060083548A1 Image forming apparatus, charge controlling apparatus, and image forming method 有权
标题翻译：图像形成装置，电荷控制装置和图像形成方法
公开(公告)号：US20060083548A1
公开(公告)日：2006-04-20
申请号：US11028746
申请日：2005-01-05
申请人： Akira Hirota , Hiroaki Umemoto , Noritoshi Hagimoto , Kuniya Matsuura , Naotoshi Kawai , Kentaro Katori
发明人： Akira Hirota , Hiroaki Umemoto , Noritoshi Hagimoto , Kuniya Matsuura , Naotoshi Kawai , Kentaro Katori
IPC分类号： G03G21/00
CPC分类号： G03G21/0064
摘要： The color printer of the invention comprises a conductive brush roller contacting with a photosensitive drum at a position downstream of a transferring apparatus and upstream of a charging apparatus, collecting at least part of residual toner after transferring on the photosensitive drum temporarily, and expelling the collected toner onto the photosensitive drum, a charge electrode facing the brush roller at a position other than the contact position of the photosensitive drum and brush roller, and a power source for applying voltage to the charge electrode. The polarity of the voltage applied from the power source to the charge electrode with respect to the average voltage of the surface of the photosensitive drum after transferring is the same as a charging polarity of the toner at developing.
摘要翻译：本发明的彩色打印机包括一个与感光鼓接触的导电刷辊，在转印装置的下游位置和充电装置的上游，在传感器上暂时收集至少部分残留的调色剂，并将收集的调色剂到感光鼓上，在除了感光鼓和刷辊的接触位置之外的位置处的面向刷辊的充电电极和用于向充电电极施加电压的电源。相对于转印后的感光鼓的表面的平均电压，从电源向充电电极施加的电压的极性与显影时的调色剂的充电极性相同。

26. 发明授权

US07197264B2 Image forming apparatus 失效
标题翻译：图像形成装置
公开(公告)号：US07197264B2
公开(公告)日：2007-03-27
申请号：US11020251
申请日：2004-12-27
申请人： Hiroaki Umemoto , Noritoshi Hagimoto , Kuniya Matsuura , Akira Hirota , Naotoshi Kawai , Kentaro Katori
发明人： Hiroaki Umemoto , Noritoshi Hagimoto , Kuniya Matsuura , Akira Hirota , Naotoshi Kawai , Kentaro Katori
IPC分类号： G03G15/30
CPC分类号： G03G21/0064 , G03G2215/0119
摘要： It is intended to provide an image forming apparatus capable of conducting charge adjustment of post-transfer residual toner appropriately by securing a contact area of a temporarily-collecting member and an electrode, without applying excessive deformation load to the temporarily-collecting member. There are arranged a brush roller for temporarily collecting post-transfer residual toner, and an electrode of which inwardly-curved face being in contact with the brush roller in a toner charge apparatus. Thereby, charged-in-opposite-polarity toner, out of post-transfer residual toner, is collected by the brush roller, polarity of the toner is reversed to original polarity, and then, returned to a photosensitive drum. The inner face of the electrode, i.e., a contact face of the electrode and the brush roller is formed in an inwardly-curved face. Thereby, a large contact area and light pushing force of the electrode to the brush roller can go together.
摘要翻译：旨在提供一种图像形成装置，其能够通过确保临时收集构件和电极的接触面积而适当地进行后转印残留调色剂的电荷调节，而不对临时收集构件施加过大的变形负荷。布置有用于临时收集转印后残留调色剂的刷辊，以及在调色剂充电装置中与刷辊接触的向内弯曲面的电极。由此，转印后的残留调色剂中的带电的相反极性调色剂由刷辊收集，调色剂的极性反转到原始极性，然后返回到感光鼓。电极的内表面，即电极和刷辊的接触面形成为向内弯曲的面。因此，电极对刷辊的大的接触面积和轻推力可以一起走。

27. 发明申请

US20050196189A1 Developing apparatus, image forming apparatus, and developing method 失效
标题翻译：显影装置，成像装置和显影方法
公开(公告)号：US20050196189A1
公开(公告)日：2005-09-08
申请号：US10981646
申请日：2004-11-05
申请人： Masahiko Matsuura , Kentaro Katori
发明人： Masahiko Matsuura , Kentaro Katori
IPC分类号： G03G15/06 , G03G15/08
CPC分类号： G03G15/065
摘要： It is intended to provide a developing apparatus, an image forming apparatus and developing method capable of managing both decrease of load on apparatuses and improvement of image quality in case development of an image is made by applying contact developing and AC developing. For that intention, voltage at a portion between a development member and an image carrier is defined oscillating voltage, and in case negative polarity toner is used, relations of peak voltage V1 of oscillating voltage, background portion voltage VH (negative) and visible section voltage VL (negative, an absolute value of it is smaller than that of VH) are set as indicated below. −500V≦V1−VL≦−350V −200V≦V1−VH≦−50V On the above conditions, peak voltage V2 is set as indicated below. −150V≦VL−V2≦−70V V2≦VH+500V
摘要翻译：旨在提供一种显影装置，图像形成装置和显影方法，其能够通过应用接触显影和AC显影来进行图像的发展，同时管理装置的负载减少和图像质量的提高。为了这个意图，显影元件和图像载体之间的部分的电压被定义为振荡电压，并且在使用负极性调色剂的情况下，振荡电压的峰值电压V 1，背景部分电压VH（负）和可见部分电压VL（负，其绝对值小于VH的绝对值）如下所示设定。 <？in-line-formula description =“在线公式”end =“lead”？> - 500V <= V 1 -VL <= - 350V <？in-line-formula description =“In-line Formulas”end =“tail”？> <？in-line-formula description =“In-line formula”end =“lead”？> - 200V <= V 1 -VH <= - 50V <？in-line-formula description =“ 在线公式“end =”tail“？>在上述条件下，峰值电压V 2如下所示设定。 <？in-line-formula description =“在线公式”end =“lead”？> - 150V <= VL-V 2 <= - 70V <？in-line-formula description =“In-line Formulas”end =“tail”？> <？in-line-formula description =“In-line Formulas”end =“lead”？> V 2 <= VH + 500V <？in-line-formula description =“In-line Formulas” end =“tail”？>

28. 发明授权

US5754920A Image forming apparatus and image forming method 失效
标题翻译：图像形成装置及图像形成方法
公开(公告)号：US5754920A
公开(公告)日：1998-05-19
申请号：US806680
申请日：1997-02-26
申请人： Masaki Tanaka , Kentaro Katori , Atsushi Kawai , Hironobu Nakata
发明人： Masaki Tanaka , Kentaro Katori , Atsushi Kawai , Hironobu Nakata
IPC分类号： G03G15/00 , H04N1/23 , G03G15/06 , G03G21/00
CPC分类号： G03G15/5041 , G03G2215/00042
摘要： The present invention relates to an image forming apparatus for copiers, printers and the like. In the image forming apparatus, a standard pattern image, the density of which is detected by a sensor for controlling conditions of image forming operations, is formed on a photosensitive member. Density values are sampled at a plurality of sampling points on a standard pattern image by operating the sensor with a timing at which said sensor confronts said standard pattern image, and are mutually compared with each other. If the comparison result indicates that the timing of the sampling operation lags the standard pattern image, the sampling timing is corrected by eliminating the timing lag. The sampling operation of a subsequent sampling cycle is thereby conducted based on a corrected timing.
摘要翻译：本发明涉及一种用于复印机，打印机等的图像形成装置。在图像形成装置中，在感光构件上形成由用于控制图像形成操作的条件的传感器检测到的浓度的标准图案图像。通过在所述传感器面对所述标准图案图像的定时操作所述传感器，并且彼此相互比较，在标准图案图像上的多个采样点处对密度值进行采样。如果比较结果表示采样操作的定时滞后于标准图案图像，则通过消除定时滞后来校正采样定时。因此，随后的采样周期的采样操作基于校正的时序进行。

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