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1. 发明授权

US07251442B2 Color image forming apparatus having advanced transfer system 有权
标题翻译：彩色图像形成装置具有先进的传送系统
公开(公告)号：US07251442B2
公开(公告)日：2007-07-31
申请号：US11113059
申请日：2005-04-25
申请人： Yotaro Sato , Takenobu Kimura , Hiroshi Akita
发明人： Yotaro Sato , Takenobu Kimura , Hiroshi Akita
IPC分类号： G03G15/16
CPC分类号： G03G15/1605 , G03G15/169 , G03G2215/0119 , G03G2215/1609
摘要： An image forming apparatus having an intermediate transfer body in which color toner images are superimposed on the intermediate transfer body is disclosed. Additionally, the toner image potential may be suppressed in areas with large toner electrostatic charge of the toner layer on the intermediate transfer body, while the toner image potential is left as such in the low toner adhesion areas. The image forming apparatus with a neutralizing charger is capable of yielding satisfactory second transfer images without causing image roughness or toner scattering.
摘要翻译：公开了一种具有中间转印体的图像形成装置，其中彩色调色剂图像叠加在中间转印体上。此外，在中间转印体上的调色剂层的调色剂静电荷较大的区域中，调色剂图像电位可能被抑制，而调色剂图像电位留在低调色剂附着区域。具有中和充电器的图像形成装置能够产生令人满意的第二转印图像而不引起图像粗糙度或调色剂散射。

2. 发明申请

US20060051138A1 Color image forming apparatus 有权
标题翻译：彩色图像形成装置
公开(公告)号：US20060051138A1
公开(公告)日：2006-03-09
申请号：US11113059
申请日：2005-04-25
申请人： Yotaro Sato , Takenobu Kimura , Hiroshi Akita
发明人： Yotaro Sato , Takenobu Kimura , Hiroshi Akita
IPC分类号： G03G15/16
CPC分类号： G03G15/1605 , G03G15/169 , G03G2215/0119 , G03G2215/1609
摘要： An image forming apparatus including: an image forming section for forming a toner image with toner particles having a first electric polarity; an intermediate transfer body; a first transfer section for transferring the toner image to the intermediate transfer body; a second transfer section for transferring to a recording medium; a charger for applying charges to the toner image on the intermediate transfer body before transferring, the charger having a discharge electrode and a grid; and a charge control section for applying a first voltage and a second voltage to the discharge electrode and the grid, respectively, the first voltage having a polarity reversed from the first electric polarity, the second voltage having an potential between a surface potential of the intermediate transfer body where no toner particle is adhered and a second surface potential of a portion where toner particles are maximally adhered.
摘要翻译：一种图像形成装置，包括：图像形成部，用于利用具有第一电极性的调色剂颗粒形成调色剂图像; 中间转印体; 用于将调色剂图像转印到中间转印体的第一转印部分; 用于传送到记录介质的第二传送部分; 用于在转印之前向中间转印体上的调色剂图像施加电荷的充电器，充电器具有放电电极和电网; 以及充电控制部分，分别向放电电极和电网施加第一电压和第二电压，所述第一电压具有与第一电极性相反极性的第一电压，第二电压具有中间体的表面电位之间的电势不附着调色剂颗粒的转印体和调色剂颗粒最大粘附的部分的第二表面电位。

3. 发明授权

US06832058B2 Image forming apparatus including a maximum charge quantity of toner particles forming useless toner 失效
标题翻译：图像形成装置包括形成无用调色剂的调色剂颗粒的最大电荷量
公开(公告)号：US06832058B2
公开(公告)日：2004-12-14
申请号：US10316438
申请日：2002-12-11
申请人： Hiroshi Akita , Kunio Shigeta , Takenobu Kimura , Yotaro Sato
发明人： Hiroshi Akita , Kunio Shigeta , Takenobu Kimura , Yotaro Sato
IPC分类号： G03G1500
CPC分类号： G03G13/09 , G03G2215/0119
摘要： In an image forming apparatus, an electrostatic latent image is reverse-developed by a developing device with a development bias applied, through conveying a two-component developer layer containing toner particles having a volume-average particle diameter of 3 to 5 &mgr;m by a developer carrying member rotatably provided, a developed toner image is transferred onto a recording medium or an intermediate transfer body, and untransferred toner particles remaining on an image forming body having passed a transfer region are removed by a cleaning member provided in pressure contact with the surface of the image forming body. The length in an axis direction of the image forming body of an useless toner image formed on the image forming body at the starting time and the ending time of an image formation sequence denoted by L, the total charge quantity of the toner particles making up the useless toner image is 0.04L &mgr;C or less.
摘要翻译：在图像形成装置中，通过施加显影偏压的显影装置将静电潜像反转显影，通过用显影剂输送含有体积平均粒径为3〜5μm的调色剂颗粒的双组分显影剂层显影的调色剂图像被转印到记录介质或中间转印体上，并且残留在已经通过转印区域的图像形成体上的未转印的调色剂颗粒通过与图像形成体。在由L表示的图像形成顺序的开始时间和结束时间，在图像形成体上形成的无用调色剂图像的图像形成体的轴向长度，构成调色剂颗粒的总电荷量无用墨粉图像为0.04L muC以下。

4. 发明授权

US06721526B2 Image forming apparatus with improved developing device 有权
标题翻译：具有改进的显影装置的图像形成装置
公开(公告)号：US06721526B2
公开(公告)日：2004-04-13
申请号：US10255848
申请日：2002-09-26
申请人： Kunio Shigeta , Hiroshi Akita , Takenobu Kimura , Yotaro Sato
发明人： Kunio Shigeta , Hiroshi Akita , Takenobu Kimura , Yotaro Sato
IPC分类号： G03G1509
CPC分类号： G03G9/0821 , G03G9/0819 , G03G9/10 , G03G13/09 , G03G15/09 , G03G2215/0609
摘要： An image forming apparatus is provided for obtaining excellent developing properties using toner with small particle diameters and for forming high-quality visual images. In a developing device of an image forming apparatus, a two-component developer is used which satisfies conditions that volume mean particle diameter dt of a toner is 3˜5 &mgr;m (Condition 1), volume mean particle diameter dc of a carrier is 5 dt˜10 dt (Condition 2), and a weight ratio Rw of the toner and the carrier is 1.6 (dt/dc) ×(&rgr;t/&rgr;c)˜2.4 (dt/dc)×(&rgr;t/&rgr;c) (Condition 3, where &rgr;t and &rgr;c are density of the toner and the carrier, respectively). A main magnetic pole M of a rotary sleeve is arranged in the vicinity of the closest position of the rotary sleeve and an image forming body, and the closest distance D between the rotary sleeve and the image forming body satisfies a condition that D is 0.5 H˜0.8 H for the free tip height H of a magnetic brush B of the main magnetic pole M. It is preferable that the actual supplied amount of the toner is regulated within a specific range.
摘要翻译：提供了一种图像形成装置，用于使用具有小粒径的调色剂获得优异的显影性能并且用于形成高质量的视觉图像。在图像形成装置的显影装置中，使用满足调色剂的体积平均粒径dt为3〜5μm（条件1），载体的体积平均粒径dc为5d的条件的双组分显影剂〜10 dt（条件2），调色剂和载体的重量比Rw为1.6（dt / dc）×（rhot / rhoc）〜2.4（dt / dc）×（rhot / rhoc）（条件3， rhot和rhoc分别是调色剂和载体的密度）。旋转套筒的主磁极M布置在旋转套筒和图像形成体的最近位置附近，并且旋转套筒和成像体之间的最近距离D满足D为0.5H的条件对于主磁极M的磁刷B的自由尖端高度H为〜0.8H。调色剂的实际供给量优选调节在特定范围内。

5. 发明申请

US20060056869A1 Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：US20060056869A1
公开(公告)日：2006-03-16
申请号：US11135496
申请日：2005-05-24
申请人： Yotaro Sato , Takenobu Kimura , Hiroshi Akita
发明人： Yotaro Sato , Takenobu Kimura , Hiroshi Akita
IPC分类号： G03G15/16
CPC分类号： G03G15/1675 , G03G15/161
摘要： Disclosed is an image forming apparatus that comprises: an image bearing member; an image forming unit for forming a toner image on the image bearing member; an intermediate transfer member; a first transfer device for transferring the toner image on the image bearing member onto the intermediate transfer member; a second transfer device for transferring the toner image on the intermediate transfer member onto a transfer material; an intermediate transfer member cleaner for cleaning the intermediate transfer member after the transfer; a charging unit for giving the electric charge to the intermediate transfer member; and a control unit by which, when the charging unit is controlled, in non-image area on the intermediate transfer member, the intermediate transfer member is charged to the reverse polarity to the charge of toner, and the toner adhered to the second transfer device is transferred to the intermediate transfer member.
摘要翻译：公开了一种图像形成装置，包括：图像承载部件; 图像形成单元，用于在图像承载部件上形成调色剂图像; 中间转印部件; 用于将图像承载部件上的调色剂图像转印到中间转印部件上的第一转印装置; 用于将中间转印部件上的调色剂图像转印到转印材料上的第二转印装置; 中间转印部件清洁剂，用于在转印之后清洁中间转印部件; 用于向中间转印部件充电的充电单元; 以及控制单元，当所述充电单元被控制在所述中间转印构件上的非图像区域中时，所述中间转印构件被充电到与调色剂的电荷相反的极性，并且所述调色剂粘附到所述第二转印装置被转移到中间转印部件。

6. 发明授权

US07346302B2 Color image forming apparatus and electric charge eliminating device 有权
标题翻译：彩色成像装置和电荷消除装置
公开(公告)号：US07346302B2
公开(公告)日：2008-03-18
申请号：US11318623
申请日：2005-12-28
申请人： Yotaro Sato , Takenobu Kimura
发明人： Yotaro Sato , Takenobu Kimura
IPC分类号： G03G15/16
CPC分类号： G03G15/0131 , G03G15/168 , G03G2215/0119
摘要： A color image forming apparatus wherein the pre-secondary transfer electric charge eliminating device arranged intermediate between a primary transfer section and a secondary transfer section is provided with: a discharge electrode arranged on the side opposite to the toner carrier surface of an intermediate transfer member; and a counter electrode containing a discharge electrode and a conductive elastic member arranged at the opposed position beyond the intermediate transfer member so as to be pressed against the intermediate transfer member; wherein the pressing force of the aforementioned counter electrode against the rear surface of the intermediate transfer member is distributed in such a way that the pressure for the center of the intermediate transfer member is smaller than that for both ends thereof, in the transversal direction to the direction in which the intermediate transfer member rotates.
摘要翻译：一种彩色图像形成装置，其中布置在一次转印部分和二次转印部分之间的二次转印电荷消除装置设置有：放电电极，设置在与中间转印部件的调色剂载体表面相反的一侧; 以及包含放电电极和导电弹性构件的对电极，布置在超过中间转印构件的相对位置以被压靠在中间转印构件上; 其特征在于，所述对置电极抵靠中间转印部件的后表面的按压力被分配成使得中间转印部件的中心的压力比其两端的压力小于中间转印部件旋转的方向。

7. 发明申请

US20070196140A1 Color image forming apparatus 有权
标题翻译：彩色图像形成装置
公开(公告)号：US20070196140A1
公开(公告)日：2007-08-23
申请号：US11602563
申请日：2006-11-21
申请人： Takenobu Kimura , Yotaro Sato
发明人： Takenobu Kimura , Yotaro Sato
IPC分类号： G03G15/16
CPC分类号： G03G15/0131 , G03G15/1605 , G03G15/161 , G03G15/169 , G03G2215/0119
摘要： There is described a color image forming apparatus for forming a color image onto a transfer material by superimposing a plurality of unicolor toner images. The apparatus makes it possible to produce a high quality image through a secondary transferring operation with a good secondary transferring efficiency. At a pre-secondary transfer charge eliminating section, an electric potential difference between the grid electrode disposed at an upstream side and an opposing electrode is set at such a value that is greater than that between a grid electrode disposed at a downstream side and an opposing electrode.
摘要翻译：描述了通过叠加多个单色调色剂图像将彩色图像形成到转印材料上的彩色图像形成装置。该装置使得可以通过具有良好二次转印效率的二次转印操作产生高质量图像。在二次转移电荷消除部分，设置在上游侧的栅极与相对电极之间的电位差设定为大于设置在下游侧的栅电极与相对电极之间的电位差电极。

8. 发明申请

US20060239725A1 Color image forming apparatus 失效
标题翻译：彩色图像形成装置
公开(公告)号：US20060239725A1
公开(公告)日：2006-10-26
申请号：US11359151
申请日：2006-02-22
申请人： Takenobu Kimura , Satoshi Hamaya , Yotaro Sato
发明人： Takenobu Kimura , Satoshi Hamaya , Yotaro Sato
IPC分类号： G03G15/16
CPC分类号： G03G15/1655 , G03G2215/0119
摘要： In the discharge section to correct the potential of toner image on the intermediate transfer body before the secondary image transfer and to obtain a good secondary transfer image, it is made that the opposite electrode is brought into contact with the back surface of the intermediate transfer body under the stable condition. Between the primary image transfer unit and the secondary image transfer unit along the intermediate transfer body, the scorotron discharger is arranged at the position where the intermediate transfer belt is supported plane-likely, and on the rear side of the intermediate transfer body opposing to the grid of the discharger, the opposite electrode composed of the electric conductive brush is arranged, the electric conductive brush is brought into contact with the intermediate transfer body, and electrically grounded, and at least one of the plurality of support members has a configuration for adding more tension in the vicinity of the center of the intermediate transfer belt than in the vicinity of the both ends.
摘要翻译：在放电部分中，用于校正次级图像转印之前的中间转印体上的调色剂图像的电位并获得良好的二次转印图像，使得相对电极与中间转印体的背面接触在稳定的条件下。在沿着中间转印体的主图像转印单元和次级图像转印单元之间，刮刀放电器布置在中间转印带被平面地支撑的位置处，并且在与中间转印体相对的中间转印体的后侧放电器的栅格，由导电刷构成的对置电极配置成使导电刷与中间转印体接触并电接地，并且多个支撑构件中的至少一个具有添加的构造在中间转印带的中心附近比在两端附近更大的张力。

9. 发明授权

US07761042B2 Color image forming apparatus 失效
标题翻译：彩色图像形成装置
公开(公告)号：US07761042B2
公开(公告)日：2010-07-20
申请号：US11548716
申请日：2006-10-12
申请人： Yotaro Sato , Takenobu Kimura
发明人： Yotaro Sato , Takenobu Kimura
IPC分类号： G03G15/16
CPC分类号： G03G15/169 , G03G2215/0119
摘要： There is described a color image forming apparatus for forming a color image onto a transfer material by superimposing a plurality of unicolor toner images. The apparatus includes an intermediate transfer member onto which the plurality of unicolor toner images are successively transferred in such a manner that the plurality of unicolor toner images superimpose with each other, so as to form a full color toner image on the intermediate transfer member and a discharge section, in which a potential of the side plate is set at a polarity opposite to that of the grid electrode.
摘要翻译：描述了通过叠加多个单色调色剂图像将彩色图像形成到转印材料上的彩色图像形成装置。该装置包括中间转印部件，多个单色调色剂图像以多个单色调色剂图像重叠的方式连续转印到该中间转印部件上，以在中间转印部件上形成全色调色剂图像，放电部分，其中侧板的电位设置为与栅电极的极性相反的极性。

10. 发明授权

US07593665B2 Image forming apparatus with cleaning unit 失效
标题翻译：具有清洁单元的成像设备
公开(公告)号：US07593665B2
公开(公告)日：2009-09-22
申请号：US12167602
申请日：2008-07-03
申请人： Shuta Hamada , Akira Hamada, legal representative , Yoshiko Hamada, legal representative , Takenobu Kimura , Yotaro Sato
发明人： Shuta Hamada , Takenobu Kimura , Yotaro Sato
IPC分类号： G03G15/16 , G03G21/00
CPC分类号： G03G15/161 , G03G2215/1661
摘要： There is described an image forming apparatus equipped with a cleaning unit to clean a belt-type transfer member. The cleaning unit includes: a conductive opposing roller that contacts an inner surface of the intermediate transfer member; a first conductive brush member and a second conductive brush member, both of which are pressed against the conductive opposing roller while putting the intermediate transfer member between them; a cleaning-voltage applying power source to apply a cleaning voltage having a polarity opposite to that of the residual toner onto the first conductive brush member; and an opposing-roller potential controlling unit to control an electric potential state of the conductive opposing roller, so that an electric potential difference, between the first conductive brush member and the conductive opposing roller at a time when the secondary transferring unit is deactivated, is larger than that at a time when the primary transferring unit is activated.
摘要翻译：描述了一种装有清洁单元以清洁带式转印构件的图像形成装置。清洁单元包括：导电的相对辊，其与中间转印部件的内表面接触; 第一导电刷构件和第二导电刷构件，两者都将中间转印构件放置在它们之间; 清洁电压施加电源以将具有与残留调色剂的极性相反的极性的清洁电压施加到第一导电刷构件上; 以及对置辊电位控制单元，用于控制导电相对辊的电位状态，使得在二次转印单元停用时第一导电刷构件和导电对置辊之间的电位差为大于主传送单元被激活时的大小。

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