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1. 发明授权

US06985685B2 Developing device and image forming apparatus 失效
标题翻译：显影装置和图像形成装置
公开(公告)号：US06985685B2
公开(公告)日：2006-01-10
申请号：US10800687
申请日：2004-03-16
申请人： Kunio Shigeta , Seiko Itagaki , Seiji Yamaguchi , Toru Komatsu , Hiroshi Akita
发明人： Kunio Shigeta , Seiko Itagaki , Seiji Yamaguchi , Toru Komatsu , Hiroshi Akita
IPC分类号： G03G15/08
CPC分类号： G03G15/0887 , G03G15/0853 , G03G15/0893 , G03G2215/0119 , G03G2215/0819
摘要： A developing device has a rotary developer carrier, a rotary developer supply and collection member, a first and second rotary developer stirring members for stirring the developer while conveying and circulating the developer between them in the direction opposite to each other and having the same developer conveyance power, and a third rotary developer stirring member having a zero conveyance power in the rotary axis direction, which are provided in a housing in parallel with each other in this order in the direction to leave a latent image carrier. A toner replenishment inlet is provided at an upper part where the second and third stirring members face each other, and on an upstream side of the second stirring member in the developer conveyance direction, and the second and third stirring members are rotated downwardly at the position where both developer stirring members face each other.
摘要翻译：显影装置具有旋转显影剂载体，旋转显影剂供应和收集构件，第一和第二旋转显影剂搅拌构件，用于搅拌显影剂，同时在它们之间沿着彼此相反的方向输送和循环显影剂，并具有相同的显影剂输送功率和第三旋转显影剂搅拌构件，其在旋转轴线方向上具有零传送功率，它们沿着离开潜像载体的方向以彼此平行的方式设置在壳体中。在第二搅拌构件和第三搅拌构件相对的上部，以及在第二搅拌构件的显影剂输送方向的上游侧设置调色剂补充口，第二搅拌构件和第三搅拌构件在位置其中两个显影剂搅拌构件彼此面对。

2. 发明授权

US07251440B2 Development apparatus and image formation apparatus 失效
标题翻译：显影装置和图像形成装置
公开(公告)号：US07251440B2
公开(公告)日：2007-07-31
申请号：US10802807
申请日：2004-03-18
申请人： Kunio Shigeta , Hiroshi Akita , Seiko Itagaki
发明人： Kunio Shigeta , Hiroshi Akita , Seiko Itagaki
IPC分类号： G03G15/08
CPC分类号： G03G15/0893 , G03G15/0877 , G03G2215/0827 , G03G2215/0838 , G03G2221/0005
摘要： A development apparatus has: a housing in which a developer supplying/collecting unit and a developer stirring unit are arranged with a circular passage for carrying developer; a developer carrying member placed at a front side of the developer supplying/collecting unit; a developer supplying/collecting section for carrying the developer; and two developer stirring sections arranged in the front-and-rear direction so as to face, wherein, a toner supplying opening is formed above a position where the two developer stirring sections face and at an upstream side in a developer carrying direction, the two developer stirring sections are rotated at the facing position to move peripheries in a forward direction, the developer carrying direction by the two developer stirring sections is substantially opposite to one by the developer supplying/collecting section, and developer carrying capability of the two developer stirring sections is set to be made equal to that of the developer supplying/collecting section.
摘要翻译：显影装置具有：显影剂供给/收集单元和显影剂搅拌单元布置有用于承载显影剂的圆形通道的壳体; 放置在显影剂供给/收集单元的前侧的显影剂承载构件; 用于承载显影剂的显影剂供应/收集部分; 和两个显影剂搅拌部分，其沿前后方向排列成面对，其中调色剂供给口形成在两个显影剂搅拌部分的位置上方，并且在显影剂传送方向的上游侧，显影剂搅拌部分在面对位置旋转以沿向前方向移动周边，两个显影剂搅拌部分的显影剂传送方向与显影剂供应/收集部分基本上相反，并且两个显影剂搅拌部分的显影剂承载能力被设置为等于显影剂供应/收集部分的相等。

3. 发明授权

US06798999B2 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US06798999B2
公开(公告)日：2004-09-28
申请号：US10439032
申请日：2003-05-14
申请人： Seiko Itagaki , Kunio Shigeta , Hiroshi Akita
发明人： Seiko Itagaki , Kunio Shigeta , Hiroshi Akita
IPC分类号： G03G1500
CPC分类号： G03G15/5041 , G03G15/5037 , G03G2215/00042 , G03G2215/00054
摘要： This invention relates to an image forming apparatus which forms an image on a transfer medium using a two-component developing agent by electrophotography. An image forming apparatus according to this invention includes a potential sensor which measures the charging potential on an image forming body and a patch density sensor which detects the toner attraction amount of a patch image. In the image forming apparatus, a toner charge amount Qt (&mgr;C/g) is calculated from the potential of a patch image before and after development detected by the potential sensor and the image density of a developed patch image detected by the patch density sensor, and image formation is performed by setting image formation conditions based on the calculated toner charge amount Qt. To set the image formation conditions, a table which stores in advance an image formation condition corresponding to the toner charge amount Qt is used.
摘要翻译：本发明涉及一种使用双组分显影剂通过电子照相在转印介质上形成图像的图像形成装置。根据本发明的图像形成装置包括测量图像形成体上的充电电位的电位传感器和检测贴片图像的调色剂吸引量的贴片密度传感器。在图像形成装置中，根据由电位传感器检测到的显影前后的贴片图像的电位和由贴片密度传感器检测出的显影片图像的图像浓度，计算出调色剂充电量Qt（μC/ g）并且通过基于计算出的调色剂带电量Qt设定图像形成条件来进行图像形成。为了设置图像形成条件，使用预先存储与调色剂充电量Qt相对应的图像形成条件的表。

4. 发明授权

US5701553A Multi-color image forming apparatus having high developability without fogging and without mixing of colors 失效
标题翻译：具有高显影性且无雾化且不混色的多色成像装置
公开(公告)号：US5701553A
公开(公告)日：1997-12-23
申请号：US506389
申请日：1995-07-24
申请人： Isao Endo , Toru Komatsu , Yotaro Sato , Hiroyuki Nomori , Kunio Shigeta , Masahiro Onodera
发明人： Isao Endo , Toru Komatsu , Yotaro Sato , Hiroyuki Nomori , Kunio Shigeta , Masahiro Onodera
IPC分类号： G03G15/08 , G03G15/09 , G03G15/06
CPC分类号： G03G15/09 , G03G15/0803 , G03G2215/0621
摘要： A development apparatus for developing a latent image formed on an image forming body with a developer so as to obtain a toner image. A developer conveyance unit conveys the developer, including a toner, to a development zone, between the developer conveyance unit and the image forming body, from an upstream side of the development zone in a conveyance direction to a downstream side thereof. A plate member having an electrode portion is positioned at the upstream side of the development zone, wherein a downstream end portion of the plate member is positioned in contact with the development zone. A power supply unit applies a first voltage, including a DC component and an AC component, to the developer conveyance unit so that an electric field is generated at the development zone. The power supply unit applies a second voltage, including a DC component, to the electrode portion of the plate member, and the plate member controls the electric field with the second voltage. The development apparatus satisfies: V.sub.AC >.vertline.V.sub.DEN .vertline.-.vertline.V.sub.DC .vertline. when an amplitude of the AC component of the first voltage is defined as V.sub.AC (volts), the DC component of the first voltage is defined as V.sub.DC (volts), and the DC component of the second voltage is defined as V.sub.DEN (volts). The development apparatus satisfies: 10.multidot..vertline.Qt.vertline..multidot.d.sub.t .multidot.D.sub.1 >V.sub.AC >5.multidot..vertline.Qt.vertline..multidot.d.sub.t .multidot.D.sub.2 when a closest distance from the developer conveyance unit to the image forming body is defined as D.sub.1 (mm), a closest distance from the developer conveyance unit to the electrode portion is defined as D.sub.2 (mm), an average charge-to-mass of the toner is defined as Qt (.mu.C/g), and an average particle size of the toner is defined as dt (.mu.m).
摘要翻译：一种用显影剂显影形成在图像形成体上的潜像以获得调色剂图像的显影装置。显影剂输送单元将显影剂（包括调色剂）从显影区域的输送方向的上游侧向下游侧输送到显影剂输送单元和图像形成体之间的显影区域。具有电极部分的板状部件位于显影区域的上游侧，其中板状部件的下游端部与显影区域接触。电源单元将包括DC分量和AC分量的第一电压施加到显影剂输送单元，使得在显影区域产生电场。电源单元将包括DC分量的第二电压施加到板构件的电极部分，并且板构件以第二电压来控制电场。显影装置满足：VAC> | VDEN | - | VDC | 当第一电压的AC分量的振幅被定义为VAC（伏特）时，第一电压的直流分量被定义为VDC（伏特），并且第二电压的直流分量被定义为VDEN（伏特）。当从显影剂输送单元到图像形成体的最近距离定义为D1（mm）时，显影装置满足：10x | Qt | xdtxD1> VAC> 5x | Qt | xdtxD2，距离显影剂输送单元至电极部分定义为D2（mm），将调色剂的平均电荷质量定义为Qt（μC/ g），将调色剂的平均粒径定义为dt（μm）。

5. 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。

6. 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。

7. 发明授权

US5602630A Developing device 失效
标题翻译：开发设备
公开(公告)号：US5602630A
公开(公告)日：1997-02-11
申请号：US529092
申请日：1995-09-15
申请人： Isao Endo , Toru Komatsu , Yotaro Sato , Kunio Shigeta , Hiroyuki Nomori
发明人： Isao Endo , Toru Komatsu , Yotaro Sato , Kunio Shigeta , Hiroyuki Nomori
IPC分类号： G03G13/09 , G03G15/09
CPC分类号： G03G13/09 , G03G2215/0607 , G03G2215/0609 , G03G2215/0619
摘要： A non-contact type of developing device for use in an image forming apparatus having an image forming body, includes a developer conveying body facing the image forming body in which a magnet body having a plurality of magnet poles are attached therein, to convey two-component developer in the form of a developer layer onto a developing area and a control electrode provided at the developing area or upstream of the developing area. The control electrode has an electrically insulating member which is in contact with or close to the developing layer, and an electrode to which a voltage is applicable is attached to the insulating member. The following condition is satisfied: ##EQU1## where D.sub.T represents a number of toner layers on the assumption that the toner particles passing through the developing area are filled most densely, D.sub.WS represents a conveying amount (mg/cm.sup.2) of the developer layer at the developing area on the developer conveying body, T.sub.c represents a toner concentration (%) in the developer, dt represents an average sphere equivalent diameter (.mu.m) of toner in the developer, .rho.t represents a toner density (g/cm.sup.3) in the developer, vs represents a circumferential speed (mm/s) of the developer conveying body at the developing area, and vp represents a circumferential speed (mm/s) of the image forming body at the developing area.
摘要翻译：一种用于具有图像形成主体的图像形成装置中的非接触型显影装置，包括：面向图像形成主体的显影剂输送主体，其中附接有多个磁极的磁体，显影剂层形式的显影剂组分显影剂和设置在显影区域的显影区域或显影区域上游的控制电极。控制电极具有与显影层接触或靠近显影层的电绝缘构件，并且能够施加电压的电极附着到绝缘构件。满足以下条件：其中DT代表通过显影区域的调色剂颗粒最密集地填充的调色剂层数，DWS表示显影剂层的输送量（mg / cm 2）显影剂输送体上的显影区域，Tc表示显影剂中的调色剂浓度（％），dt表示显影剂中调色剂的平均球当量直径（μm），rho表示显影剂输送体中调色剂浓度（g / cm 3）显影剂vs表示显影剂输送体在显影区域的圆周速度（mm / s），vp表示图像形成体在显影区域的圆周速度（mm / s）。

8. 发明授权

US08233828B2 Developing apparatus, imaging unit, and image forming apparatus including developer mixing container with auxiliary member to circulate developer 有权
标题翻译：显影装置，成像单元和图像形成装置，包括具有辅助构件的显影剂混合容器以使显影剂循环
公开(公告)号：US08233828B2
公开(公告)日：2012-07-31
申请号：US12565028
申请日：2009-09-23
申请人： Kunio Shigeta , Naoya Iwata
发明人： Kunio Shigeta , Naoya Iwata
IPC分类号： G03G15/08
CPC分类号： G03G15/0893 , G03G15/0877 , G03G2215/0827 , G03G2215/0838
摘要： A developing apparatus includes a first rotation member having a rotation shaft to transfer developer in a first direction and a mixing and transfer member having a spiral wing shape to mix and transfer the developer to the center portion of the rotation shaft, a second rotation member having a rotation shaft including a mixing and transfer member to transfer the developer in a direction opposite to the first direction by the first rotation member and a circulation auxiliary member to transfer the developer to the center portion of the rotation shaft, two end portion partition walls formed along the circulation auxiliary member, and a center partition wall formed along the mixing and transfer member at a position separated from the end portion partitions wall.
摘要翻译：一种显影装置，包括具有旋转轴以沿第一方向传送显影剂的第一旋转构件和具有螺旋翼形状的混合和转印构件，以将显影剂混合并转移到旋转轴的中心部分，第二旋转构件具有旋转轴，其包括通过第一旋转构件将显影剂沿与第一方向相反的方向传送的混合转印构件和循环辅助构件，以将显影剂转印到旋转轴的中心部分，形成两个端部分隔壁沿着循环辅助构件，以及沿着混合转印构件在与端部分隔壁分离的位置处形成的中心分隔壁。

9. 发明授权

US06204932B1 Image forming apparatus 失效
标题翻译：图像形成装置
公开(公告)号：US06204932B1
公开(公告)日：2001-03-20
申请号：US09081514
申请日：1998-05-20
申请人： Satoshi Haneda , Kunio Shigeta , Kiyoshi Kimura
发明人： Satoshi Haneda , Kunio Shigeta , Kiyoshi Kimura
IPC分类号： G06K1514
CPC分类号： H04N1/40
摘要： In an image forming apparatus, a document image is read by an image scanner and image data are applied with image processing and stored in a memory. An image correction device corrects the image data with a different correcting condition depending on whether the image data are used for a toner image on the obverse side of the sheet or for a toner image on the reverse side of the sheet. A fixing device fixes the toner images on the obverse side and the reverse side of the sheet simultaneously.
摘要翻译：在图像形成装置中，文件图像由图像扫描器读取，图像数据被应用于图像处理并存储在存储器中。图像校正装置根据图像数据是用于纸张的正面上的调色剂图像还是用于纸张背面的调色剂图像，以不同的校正条件来校正图像数据。定影装置同时将片材的正面和反面确定调色剂图像。

10. 发明授权

US5995797A Image forming apparatus which conveys unfixed toner images to a fixing device in an undisturbed and stable manner so that images may be formed on both sides of a sheet 失效
标题翻译：图像形成装置，其以未受干扰且稳定的方式将未定影的调色剂图像传送到定影装置，使得可以在片材的两面上形成图像
公开(公告)号：US5995797A
公开(公告)日：1999-11-30
申请号：US81513
申请日：1998-05-20
申请人： Kunio Shigeta , Yotaro Sato , Hisayoshi Nagase , Satoshi Haneda , Toshihide Miura
发明人： Kunio Shigeta , Yotaro Sato , Hisayoshi Nagase , Satoshi Haneda , Toshihide Miura
IPC分类号： G03G15/00 , G03G15/20
CPC分类号： G03G15/657 , G03G15/2028 , G03G2215/00413 , G03G2215/00586 , G03G2215/2083
摘要： In an image forming apparatus provided with a first image carrying member; a belt-shaped second image carrying member onto which a toner image is transferred from the first image carrying member; a pair of rotatable fixing members forming a nip region for fixing the toner images transferred on the both sides of the sheet; a conveying device for guiding the sheet separated from an end of the belt-shaped second image carrying member to the pair of rotatable fixing members, when the sheet is nipped and conveyed through the nip region of the pair of rotatable fixing members, the belt-shaped second image carrying member and the pair of rotatable fixing members are arranged such that the sheet is conveyed so as to form a loop protruding from a line connecting the entrance of the nip region and the end of the belt-shaped second image carrying member.
摘要翻译：在具有第一图像承载部件的图像形成装置中，带状的第二图像承载构件，其上从第一图像承载构件转印调色剂图像; 一对可旋转的固定构件，形成用于固定转印在纸张两侧的调色剂图像的辊隙区域; 所述输送装置用于将所述片材从所述带状第二图像承载构件的一端分离到所述一对可旋转固定构件时，当所述片材被夹持并输送通过所述一对可旋转固定构件的所述夹持区域时，所述一对可旋转固定构件被布置成使得所述片材被输送以形成从连接所述夹持区域的入口和所述带状第二图像承载构件的端部的线突出的环。

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