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1.发明授权Image forming apparatus wherein toner in a developing device toner and toner on an image bearing member satisfy a prescribed weight average diameter relationship 有权图像形成装置，其中显影调色剂中的调色剂和图像承载部件上的调色剂满足规定的重均直径关系公开(公告)号：US06304738B1
公开(公告)日：2001-10-16
申请号：US09503194
申请日：2000-02-14
IPC分类号： G03G1530
CPC分类号： G03G13/09 , G03G9/0819 , G03G15/065
摘要： An image forming apparatus uses a toner wherein when a weight average diameter of the initial toner in a developing device is set to D1, and a weight average diameter of a toner forming an initial toner image on an image bearing member is D2, such that D1≧D2 is satisfied.
摘要翻译： 图像形成装置使用调色剂，其中当显影装置中的初始调色剂的重量平均直径设定为D1时，在图像承载部件上形成初始调色剂图像的调色剂的重量平均直径为D2，使得D1 > = D2满足。
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公开(公告)号：US06389245B2
公开(公告)日：2002-05-14
申请号：US09359733
申请日：1999-07-23
IPC分类号： G03G1508
CPC分类号： G03G15/0849 , G03G15/0848 , G03G15/0853
摘要： A developing device includes a developer bearing member for bearing and conveying a developer having a toner and a carrier, a first magnetic pole arranged in the developer bearing member, a second magnetic pole arranged in the developer bearing member, a polarity of the second magnetic pole being opposite to a polarity of the first magnetic pole. The second magnetic pole is adjacent to the first magnetic pole and is arranged on a downstream side of the first magnetic pole in a moving direction of the developer bearing member. A regulating member regulates a layer thickness of the developer borne by the developer bearer. The regulating member is arranged in the vicinity of the second magnetic pole and a concentration detector for detecting a concentration of the toner in the developer.
摘要翻译： 显影装置包括用于承载和输送具有调色剂和载体的显影剂的显影剂承载部件，布置在显影剂承载部件中的第一磁极，布置在显影剂承载部件中的第二磁极，第二磁极的极性 与第一磁极的极性相反。 第二磁极与第一磁极相邻，并且在显影剂承载部件的移动方向上布置在第一磁极的下游侧。 调节构件调节由显影剂载体承载的显影剂的层厚度。 调节构件布置在第二磁极附近，并且浓度检测器用于检测显影剂中调色剂的浓度。
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公开(公告)号：US6049687A
公开(公告)日：2000-04-11
申请号：US179880
申请日：1998-10-28
CPC分类号： G03G9/10 , G03G15/0907 , G03G9/107
摘要： A developing apparatus has a developer bearing member disposed in opposed relationship with an image bearing member bearing an electrostatic image thereon with a gap of 6.times.10.sup.-4 m or less with respect to the image bearing member, and bearing and conveying a developer thereon. The developer bearing member is moved in a direction opposite to the direction of movement of the image bearing member in the portion opposed to the image bearing member, and the developer has a non-magnetic toner and a carrier of which the magnetization rate in a magnetic field of 1000 gauss is equal to or greater than 30 emu/cm.sup.3 and equal to or less than 200 emu/cm.sup.3 and the specific resistance at electric field intensity of 5.times.10.sup.4 V/m is 10.sup.12 .OMEGA.cm or greater. The developing apparatus further has applying means for applying a bias voltage having a vibration component to the developer bearing member. The bias voltage applied to the developer bearing member and the gap between the image bearing member and the developer carrying member satisfy the following relation:2.0.times.10.sup.6 .ltoreq.V/d
摘要翻译： 显影装置具有显影剂承载部件，该显影剂承载部件与图像承载部件相对设置，该图像承载部件相对于图像承载部件具有6×10 -4 m或更小的间隔，并且在其上承载和输送显影剂。 显影剂承载构件在与图像承载构件相对的部分中与图像承载构件的移动方向相反的方向移动，并且显影剂具有非磁性调色剂和载体，其磁化速率在磁性 1000高斯的场等于或大于30emu / cm 3且等于或小于200emu / cm 3，并且电场强度为5×10 4 V / m时的电阻率为1012ΩEG/ cm以上。 显影装置还具有用于将具有振动成分的偏置电压施加到显影剂承载部件的施加装置。 施加到显影剂承载部件的偏置电压和图像承载部件和显影剂承载部件之间的间隙满足以下关系：2.0×10 6
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公开(公告)号：US06345162B1
公开(公告)日：2002-02-05
申请号：US09567988
申请日：2000-05-10
IPC分类号： G03G1506
CPC分类号： G03G15/0853 , G03G2215/021 , G03G2221/0005
摘要： The present invention relates to an image forming apparatus which has an image bearing member for bearing a latent image, charging device for charging the image bearing member by bringing ears of electrically conductive particles into contact with the image bearing member, developing device for visualizing the latent image formed on the image bearing member as a toner image by using a developer containing toner and carrier after the image bearing member has been charged by the charging device, a permeability of the carriers being different from a permeability of the electrically conductive particles, density control device for controlling density of the developer within the developing device, the density control device detecting a permeability of the developer, comparing a detected signal value based on the detected result with a reference value, and controlling the density of the developer on the basis of the comparison result, and reference value correcting device for correcting the reference value, the reference value correcting device estimating an amount of the electrically conductive particles that enter within the developing device, and correcting the reference value on the basis of the estimated result.
摘要翻译： 本发明涉及一种图像形成装置，其具有用于承载潜像的图像承载部件，通过使导电粒子的耳朵与图像承载部件接触来对图像承载部件充电的充电装置，用于使潜在的潜像 图像承载部件上的图像作为调色剂图像，通过使用含有调色剂和载体的显影剂，在图像承载部件已被充电装置充电之后，载体的磁导率不同于导电颗粒的磁导率，密度控制 用于控制显影装置内的显影剂密度的装置，密度控制装置检测显影剂的渗透性，将检测到的信号值与检测结果进行比较，并根据检测结果控制显影剂的浓度 比较结果和用于校正的参考值校正装置 参考值，所述参考值校正装置估计进入所述显影装置内的所述导电颗粒的量，并且基于所述估计结果来校正所述参考值。
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公开(公告)号：US06294305B1
公开(公告)日：2001-09-25
申请号：US09523744
申请日：2000-03-13
IPC分类号： G03G1302
CPC分类号： G03G13/09 , G03G13/025 , G03G2215/022 , G03G2221/0005 , Y10S430/102
摘要： An image forming method includes (i) a charging step of using a charging device including conductive magnetic particles, a rotatable conductive-magnetic-particle carrying member for carrying and conveying the conductive magnetic particles, and a plurality of magnetic-field generation means provided within the conductive-magnetic-particle carrying member, and charging a surface of an image bearing member by applying a voltage to the conductive-magnetic-particle carrying member and causing the conductive magnetic particles to contact the image bearing member, (ii) a latent-image forming step of forming an electrostatic latent image on the charged surface of the image bearing member, and (iii) a developing step of using a developing device facing the image bearing member and including a two-component developer including a toner and magnetic carrier particles, a developer carrying member for carrying the two-component developer, and a plurality of magnetic-field generation means provided within the developer carrying member, and forming a toner image by forming an AC electric field at a portion where the image bearing member faces the developer carrying member and developing the electrostatic latent image by the toner of the two-component developer. An amount of frictional charging (Q1) of the toner with the conductive magnetic particles and an amount of frictional charging (Q2) of the toner with the magnetic carrier particles within the developing device satisfy the following relationship: 0 Q2≧Q1 (mC/kg).
摘要翻译： 一种图像形成方法包括：（i）使用包括导电磁性颗粒的充电装置，用于承载和输送导电磁性颗粒的可旋转的导电磁性颗粒承载构件的充电步骤，以及设置在内部的多个磁场产生装置 所述导电性磁性粒子承载部件通过向所述导电性磁性体承载部件施加电压并使所述导电性磁性粒子与所述载像部件接触而对图像承载部件的表面进行充电，（ii） 在图像承载部件的带电表面上形成静电潜像的图像形成步骤，以及（iii）使用面向图像承载部件的显影装置的显影步骤，并且包括具有调色剂和磁性载体颗粒的双组分显影剂 ，用于承载双组分显影剂的显影剂承载构件和设置有w的多个磁场产生装置 并且通过在图像承载部件面向显影剂承载部件的部分处形成AC电场并通过双组分显影剂的调色剂显影静电潜像来形成调色剂图像。 具有导电磁性颗粒的调色剂的摩擦带电量（Q1）和显影装置内的磁性载体颗粒的调色剂的摩擦带电量（Q2）满足以下关系：
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6.发明授权Developing apparatus employing permeability sensor to detect polymer toner density 失效利用渗透率传感器检测聚合物调色剂密度的显影装置公开(公告)号：US06449442B1
公开(公告)日：2002-09-10
申请号：US09098328
申请日：1998-06-17
IPC分类号： G03G1510
CPC分类号： G03G15/0853
摘要： A developing apparatus includes a developer container for containing a developer comprising magnetic carrier and non-magnetic toner produced through polymerization method; a developer carrying member, provided in an opening of the developer container, for carrying the developer; detecting means for detecting a toner content in the developer, the detecting means including a coil sensor and detecting the toner content using magnetic permeability of the developer.
摘要翻译： 显影装置包括用于容纳包含磁性载体的显影剂和通过聚合方法生产的非磁性调色剂的显影剂容器; 显影剂承载构件，设置在显影剂容器的开口中，用于承载显影剂; 用于检测显影剂中的调色剂含量的检测装置，所述检测装置包括线圈传感器，并使用显影剂的磁导率检测调色剂含量。
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7.发明授权Image forming apparatus and positioning of magnetic field generating devices within the same apparatus 失效图像形成装置和磁场产生装置在同一装置内的定位公开(公告)号：US06219514B1
公开(公告)日：2001-04-17
申请号：US09432798
申请日：1999-11-03
IPC分类号： G03G1500
CPC分类号： G03G15/0241 , G03G15/09 , G03G2215/022
摘要： An image forming apparatus comprises a charging member, an image bearing member and a developer bearing member. The charging member comprises a first magnetic field generating device, wherein a first magnetic field with a first magnetic pole closest to the image bearing member has a half-value width &agr;°. Measuring from a center of the charging member, an angle between a closest point of the image bearing member and a maximum magnetic flux density of the first magnetic pole is &thgr;c°. The developer bearing member comprises a second magnetic field generating device, wherein a second magnetic field with a second magnetic pole closest to the image bearing member has a half-value width &bgr;°. Measuring from a center of the developer bearing member, an angle between a closest point of the image bearing member and a maximum magnetic flux density of the second magnetic pole is &thgr;d°. The charging member, developer bearing member and image bearing member are arranged so that &agr;>&bgr; and &thgr;c
摘要翻译： 图像形成装置包括充电构件，图像承载构件和显影剂承载构件。 充电构件包括第一磁场产生装置，其中具有最靠近图像承载构件的第一磁极的第一磁场具有半值宽度α°。 从充电构件的中心测量，图像承载构件的最近点与第一磁极的最大磁通密度之间的角度为t°°。 显影剂承载部件包括第二磁场产生装置，其中具有最靠近图像承载部件的第二磁极的第二磁场具有半值宽度β°。 从显影剂承载部件的中心测量，图像承载部件的最近点与第二磁极的最大磁通密度之间的角度为t°°。 充电构件，显影剂承载构件和图像承载构件被布置成使得α>β和tt
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公开(公告)号：US6104892A
公开(公告)日：2000-08-15
申请号：US323994
申请日：1999-06-02
CPC分类号： G03G15/0853 , G03G15/0891
摘要： A developing device having a developer bearing member for carrying thereon a developer having toner and carrier and conveying the developer to a developing area, an agitating member for agitating the developer, a rotation radius R (m) of the agitating member being 5.0.times.10.sup.-3 (m)
摘要翻译： 一种显影装置，其具有用于承载具有调色剂和载体的显影剂并将显影剂输送到显影区域的显影剂承载构件，用于搅拌显影剂的搅拌构件，搅拌构件的旋转半径R（m）为5.0×10 -3 （m）
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9.发明授权Image forming apparatus with residual toner detection and collection features 有权具有残留调色剂检测和收集功能的图像形成装置公开(公告)号：US06332063B1
公开(公告)日：2001-12-18
申请号：US09536306
申请日：2000-03-27
申请人： Ichiro Ozawa , Masaru Hibino , Masanori Shida
发明人： Ichiro Ozawa , Masaru Hibino , Masanori Shida
IPC分类号： G03G1500
CPC分类号： G03G15/0853 , G03G15/0194 , G03G2215/0119 , G03G2221/0005
摘要： An image forming apparatus includes a plurality of image forming stations forming images of different colors on a transfer material and is provided along a direction of conveyance of the transfer material by a conveying system, in which a toner replenishing system is operated on the basis of a result of a detected magnetic permeability a detecting device and the developer, which is not transferred to the transfer material but and, which remains on an image bearing member is collected by a developing system.
摘要翻译： 图像形成装置包括多个图像形成站，其在转印材料上形成不同颜色的图像，并且通过传送系统沿着转印材料的输送方向设置，其中调色剂补充系统基于 通过显影系统收集未被转印到转印材料上并且保留在图像承载部件上的检测装置和显影剂的检测磁导率的结果。
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10.发明授权Image forming apparatus for effecting development and cleaning by using magnet brush 失效用于通过使用磁刷实现显影和清洁的图像形成装置
公开(公告)号：US5870656A
公开(公告)日：1999-02-09
申请号：US982341
申请日：1997-12-02
CPC分类号： G03G21/0064 , G03G13/09 , G03G9/10 , G03G2221/0005
摘要： An image forming apparatus having an image bearing member for bearing an electrostatic image to be developed by toner, a transfer device for transferring a toner image formed on the image bearing member onto a transfer material, and developing and cleaning device for developing the electrostatic image with developer including toner and carrier and for cleaning residual toner remaining on the image bearing member after transferring, the developing and cleaning device having a developer bearing member for bearing the developer and serving to effect development and cleaning by causing a magnet brush formed by the carrier to contact with the image bearing member, and wherein the following relation is satisfied:.vertline.V.sub.s1 V.sub.dr .vertline./.vertline.V.sub.dr .vertline..times.L.times.m.times..alpha..gtoreq.7(where, V.sub.s1 is a moving speed (mm/sec.) of a surface of the developer bearing member, V.sub.dr is a moving speed (mm/sec.) of a surface of the image bearing member, L is a contact width (mm) of the brush in a moving direction of the image bearing member, m is a cross-sectional area (mm.sup.2) of the magnet brush, and .alpha. is density (flux/mm.sup.2) of the magnet brush).
摘要翻译： 一种图像形成装置，具有用于承载通过调色剂显影的静电图像的图像承载部件，用于将形成在图像承载部件上的调色剂图像转印到转印材料上的转印装置，以及用于使静电图像显影的显影和清洁装置， 显影剂，包括调色剂和载体，并用于清洁转印后残留在图像承载部件上的残留调色剂，显影和清洁装置具有用于承载显影剂的显影剂承载部件，并且用于通过使由载体形成的磁刷形成显影和清洁 与图像承载部件接触，并且其中满足以下关系：| Vs1Vdr | / | Vdr |xLxmxα1/ = 7（其中，Vs1是显影剂承载部件的表面的移动速度（mm / sec） Vdr是图像承载部件的表面的移动速度（mm / sec），L是图像承载部件的移动方向上的刷子的接触宽度（mm），m是 磁刷的横截面积（mm2），α是磁刷的密度（磁通/ mm2））。
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