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    Image forming apparatus with toner amount selection feature
    1.
    发明授权
    Image forming apparatus with toner amount selection feature 失效
    具有调色剂量选择功能的图像形成装置

    公开(公告)号：US07013096B2

    公开(公告)日：2006-03-14

    申请号：US10765169

    申请日：2004-01-28

    申请人： Ichiro Ozawa ,  Yoshiaki Kobayashi ,  Hideaki Suzuki

    发明人： Ichiro Ozawa ,  Yoshiaki Kobayashi ,  Hideaki Suzuki

    IPC分类号： G03G15/08

    CPC分类号： G03G15/0849 ,  G03G15/0853

    摘要： An image forming apparatus includes an image bearing member on which a latent image corresponding to image information is formed, a developing device for developing the latent image on said image bearing member with a developer including carrier and toner, a supplying device for supplying a developer to the developing device, a detector for detecting information corresponding to the magnetic permeability of the developer, and a selecting device for selecting modes on the basis of the information detected by the detecting device, wherein the selecting device can select a first control mode that controls the amount of the developer which is supplied to the developing device by the supplying device on the basis of the information detected by the detector, and a second control mode that controls the amount of the developer which is supplied to the developing device by the supplying device on the basis of the image information.

    摘要翻译： 图像形成装置包括：图像承载部件，其上形成有对应于图像信息的潜像;显影装置，用于利用包含载体和调色剂的显影剂在所述图像承载部件上显影潜像;供给装置，用于将显影剂供应到 显影装置，用于检测与显影剂的磁导率相对应的信息的检测器，以及基于由检测装置检测到的信息来选择模式的选择装置，其中选择装置可以选择控制显影装置的第一控制模式 基于由检测器检测到的信息由供给装置供应到显影装置的显影剂的量以及控制通过供给装置供给到显影装置的显影剂的量的第二控制模式 图像信息的基础。

    Image forming apparatus for effecting development and cleaning by using magnet brush
    2.
    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

    申请人： Masaru Hibino ,  Yoshiaki Kobayashi ,  Koichi Hashimoto ,  Ichiro Ozawa

    发明人： Masaru Hibino ,  Yoshiaki Kobayashi ,  Koichi Hashimoto ,  Ichiro Ozawa

    IPC分类号： G03G9/10 ,  G03G13/09 ,  G03G21/00 ,  G03G15/30

    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））。

    Developing apparatus employing permeability sensor to detect polymer toner density
    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

    申请人： Masanori Shida ,  Yoshiaki Kobayashi ,  Masaru Hibino ,  Ichiro Ozawa

    发明人： Masanori Shida ,  Yoshiaki Kobayashi ,  Masaru Hibino ,  Ichiro Ozawa

    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。

    Image forming apparatus and positioning of magnetic field generating devices within the same apparatus
    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

    申请人： Yoshiaki Kobayashi ,  Masaru Hibino ,  Masanori Shida ,  Ichiro Ozawa

    发明人： Yoshiaki Kobayashi ,  Masaru Hibino ,  Masanori Shida ,  Ichiro Ozawa

    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

    Image forming apparatus controlling image forming conditions based on detected toner concentration before and after stoppage
    9.
    发明授权
    Image forming apparatus controlling image forming conditions based on detected toner concentration before and after stoppage 有权
    基于检测到的调色剂浓度在停止前后控制图像形成条件的图像形成装置

    公开(公告)号：US06377762B2

    公开(公告)日：2002-04-23

    申请号：US09771884

    申请日：2001-01-30

    申请人： Yoshiaki Kobayashi ,  Ichiro Ozawa

    发明人： Yoshiaki Kobayashi ,  Ichiro Ozawa

    IPC分类号： G03G1500

    CPC分类号： G03G15/0849 ,  G03G15/0853 ,  G03G15/0889

    摘要： An image forming apparatus is provided with a function for forming an image on a recording medium such, as a sheet or the like. The image forming apparatus includes an image forming unit for forming an image on a recording material including an image bearing member. A developing unit develops an electrostatic image formed on the image bearing member by a developer. A density detection unit detects a developer density inside the developing unit. The density detection unit detects a parameter relating to physical property of the developer based on a previous detection value detected by the density detection unit during a previous image forming drive operation by the image forming unit and before the previous image forming drive operation stops. The detection unit also detects a next detection value detected by the density detecting unit after the previous image forming drive operation stops and before a next image forming drive operation by the image forming unit starts. Accordingly, the image forming condition of the next image forming drive operation is controlled to be variable by a control unit based on the detection values.

    摘要翻译： 图像形成装置具有在诸如片材等的记录介质上形成图像的功能。 图像形成装置包括用于在包括图像承载部件的记录材料上形成图像的图像形成单元。 显影单元通过显影剂显影形成在图像承载部件上的静电图像。 密度检测单元检测显影单元内的显影剂密度。 密度检测单元根据由图像形成单元在先前的图像形成驱动操作期间以及之前的图像形成驱动操作停止时由密度检测单元检测到的先前检测值来检测与显影剂的物理性质相关的参数。 检测单元还检测在先前图像形成驱动操作停止之后并且在图像形成单元开始的下一个图像形成驱动操作之前由密度检测单元检测到的下一个检测值。 因此，基于检测值，控制单元将下一个图像形成驱动操作的图像形成条件控制为可变。

    Image forming apparatus
    10.
    发明授权
    Image forming apparatus 失效
    图像形成装置

    公开(公告)号：US06345162B1

    公开(公告)日：2002-02-05

    申请号：US09567988

    申请日：2000-05-10

    申请人： Ichiro Ozawa ,  Yoshiaki Kobayashi ,  Masaru Hibino ,  Masanori Shida

    发明人： Ichiro Ozawa ,  Yoshiaki Kobayashi ,  Masaru Hibino ,  Masanori Shida

    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。