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29 条记录 (耗时 0.022 秒)

    Charging system, process cartridge and image forming apparatus
    1.
    发明授权
    Charging system, process cartridge and image forming apparatus 失效
    充电系统，处理盒和成像设备

    公开(公告)号：US06741824B2

    公开(公告)日：2004-05-25

    申请号：US10418219

    申请日：2003-04-18

    申请人： Masaki Ojima ,  Noboru Kashimura ,  Keiji Okano ,  Junichi Kato

    发明人： Masaki Ojima ,  Noboru Kashimura ,  Keiji Okano ,  Junichi Kato

    IPC分类号： C03G1502

    CPC分类号： G03G15/0216

    摘要： An image forming apparatus has an image bearing member; and a charging member forming a nip with the image bearing member to charge the image bearing member. Conductive particles are provided in the nip and a time factor &agr; represented by a following equation satisfies a condition &agr;>15: &agr;=2&pgr;·k·Nc·(W/Vc)/(&rgr;·Cd·Z) Z=−0.5·1n(&pgr;·k·Nc)−1n({square root over (&bgr;)}·D/2) (&bgr;=1.1932) in which &rgr; (&OHgr;) represents a surface resistivity of said image bearing member; Cd (F/mm2) represents an electrostatic capacitance of the image bearing member; D (mm) represents a diameter of the conductive particle; Nc (particle/mm2) represents a density of the conductive particles present on the charging member; Vc (mm/sec) represents a surface moving speed of the charging member; Vd (mm/sec) represents a surface moving speed of the image bearing member; k=Vc/Vd; and W (mm) represents a width of the nip in the moving direction of the image bearing member.

    摘要翻译： 图像形成装置具有图像承载部件; 以及与图像承载部件形成辊隙以对图像承载部件充电的充电部件。 在辊隙中提供导电颗粒，由下式表示的时间因子α满足条件α> 15：其中rho（Ω）表示所述图像承载部件的表面电阻率; Cd（F / mm 2）表示图像承载部件的静电电容; D（mm）表示导电粒子的直径; Nc（粒子/ mm 2）表示充电部件上存在的导电粒子的密度; Vc（mm / sec）表示充电部件的表面移动速度; Vd（mm / sec）表示图像承载部件的表面移动速度; k = Vc / Vd; W（mm）表示图像承载部件的移动方向上的辊隙的宽度。

    Developing device comprising a magnetic member
    4.
    发明授权
    Developing device comprising a magnetic member 失效
    显影装置，包括磁性构件

    公开(公告)号：US5781835A

    公开(公告)日：1998-07-14

    申请号：US556697

    申请日：1995-11-13

    申请人： Keiji Okano ,  Takahiro Inoue ,  Masaki Ojima ,  Seiji Yamaguchi

    发明人： Keiji Okano ,  Takahiro Inoue ,  Masaki Ojima ,  Seiji Yamaguchi

    IPC分类号： G03G15/08 ,  G03G15/09 ,  G03G21/18 ,  G03G21/00

    CPC分类号： G03G15/0921 ,  G03G15/09

    摘要： A developing device includes a developer container for accommodating one component magnetic toner; a rotatable toner carrying member, faced to an image bearing member for bearing an electrostatic image to form a developing zone therebetween, for carrying the toner in the container; a magnet member in the toner carrying member; a regulating member, elastically urged to the toner carrying member to form a nip therebetween, for regulating a toner layer thickness on the toner carrying member; wherein the magnet member has a magnetic pole, upstream of the nip with respect to a movement direction of the toner carrying member, for supplying the toner in the container to the toner carrying member, and wherein the magnet member does not generate a magnetic field effective for chain erection of the toner in a range from an upstream end of the nip to a downstream end of the developing zone.

    摘要翻译： 显影装置包括用于容纳单组分磁性调色剂的显影剂容器; 可旋转的调色剂承载构件，面对用于承载静电图像以在其间形成显影区域的图像承载构件，用于将调色剂携带在容器中; 调色剂承载构件中的磁体构件; 调节构件，弹性地推压到调色剂承载构件上以在其间形成辊隙，用于调节调色剂承载构件上的调色剂层厚度; 其中所述磁体构件具有相对于所述调色剂承载构件的移动方向的所述辊隙上游的磁极，用于将所述容器中的调色剂供应到所述调色剂承载构件，并且其中所述磁体构件不产生有效的磁场 用于在从间隙的上游端到显影区的下游端的范围内链式调色剂。

    Process cartridge, memory medium for the process cartridge, image forming apparatus and image formation control system
    5.
    发明申请
    Process cartridge, memory medium for the process cartridge, image forming apparatus and image formation control system 有权
    处理盒，处理盒的存储介质，图像形成装置和图像形成控制系统

    公开(公告)号：US20050271406A1

    公开(公告)日：2005-12-08

    申请号：US11204073

    申请日：2005-08-16

    申请人： Keiji Okano ,  Satoshi Sunahara ,  Satoru Motohashi

    发明人： Keiji Okano ,  Satoshi Sunahara ,  Satoru Motohashi

    IPC分类号： G03G15/00 ,  G03G15/02 ,  G03G21/18

    CPC分类号： G03G21/1889 ,  G03G15/0266

    摘要： A memory medium is provided to a cartridge detachably mountable to an image forming apparatus. Into the memory medium, as information for performing charge control, information on the amount of usage of an image-bearing member and information on a charging alternating voltage (a threshold value for selection control of a charging peak-to-peak voltage Vpp) are written. The image forming apparatus includes a charging-bias power-supply circuit, on its body side, including AC oscillation output circuit capable of outputting two or more species of alternating peak-to-peak voltages and an AC detector for detecting an alternating current passing through the image-bearing member. Charge control is performed on the basis of a detected value detected by the AC detector and memory information for the cartridge, whereby good charge control space saving, and cost reduction of the power-supply circuit are compatibly realized.

    摘要翻译： 存储介质被提供到可拆卸地安装到图像形成装置的盒。 作为进行充电控制的信息，作为用于执行充电控制的信息，关于图像承载部件的使用量的信息和关于充电交流电压的信息（用于充电峰峰值电压Vpp的选择控制的阈值）的信息是 书面。 图像形成装置包括充电偏置电源电路，其主体侧包括能够输出两种或更多种交变峰 - 峰电压的AC振荡输出电路，以及用于检测通过的交流电流的AC检测器 图像承载部件。 基于由AC检测器检测到的检测值和盒的存储器信息进行充电控制，由此实现良好的充电控制空间节省和电源电路的成本降低。

    Process cartridge, assembling method therefor and electrophotographic apparatus
    6.
    发明授权
    Process cartridge, assembling method therefor and electrophotographic apparatus 失效
    处理盒，其组装方法和电子照相设备

    公开(公告)号：US5589918A

    公开(公告)日：1996-12-31

    申请号：US380420

    申请日：1995-01-30

    申请人： Haruhisa Oshida ,  Keiji Okano ,  Masahide Kinoshita ,  Koji Takahashi ,  Yasushi Shimizu ,  Akira Domon

    发明人： Haruhisa Oshida ,  Keiji Okano ,  Masahide Kinoshita ,  Koji Takahashi ,  Yasushi Shimizu ,  Akira Domon

    IPC分类号： G03G15/08 ,  G03G21/18 ,  G03G15/06

    CPC分类号： G03G21/181 ,  G03G15/0856 ,  G03G15/0862 ,  G03G21/1832 ,  G03G2221/1609

    摘要： A process cartridge detachably mountable to an image forming apparatus, wherein the image forming apparatus light emitting means and light receiving means cooperative with the light emitting means to detect amount of toner in a part of the process cartridge, the process cartridge includes an electrophotographic photosensitive member; process means actable on the electrophotographic photosensitive member; a toner container, adapted for being mounted in the part, for containing the toner to be used for developing a latent image formed in the electrophotographic photosensitive member; a light transmitting member, provided in the toner container, for transmitting light emitted from the light emitting means to permit detection of the amount of the toner in the toner container when the process cartridge is mounted to a main assembly of the image forming apparatus; a cover member movable between a protecting position for protecting the electrophotographic photosensitive member and a retracted position wherein the cover is retracted from the covering position; wherein upon movement of the cover member from the protecting position to the retracted position when the process cartridge is mounted to the main assembly, the cover member is retracted toward the toner container beyond a position of the light transmitting member.

    摘要翻译： 一种可拆卸地安装到图像形成装置的处理盒，其中图像形成装置发光装置和光接收装置与发光装置协作以检测处理盒的一部分中的调色剂量，处理盒包括电子照相感光构件 ; 处理装置可作用于电子照相感光构件; 调色剂容器，适于安装在所述部件中，用于容纳用于显影形成在所述电子照相感光构件中的潜像的调色剂; 设置在所述调色剂容器中的透光构件，用于透射从所述发光装置发射的光，以便当所述处理盒安装到所述图像形成装置的主组件时，检测所述调色剂容器中的调色剂的量; 可在用于保护电子照相感光构件的保护位置和其中盖从覆盖位置缩回的缩回位置之间移动的盖构件; 其中当所述处理盒安装到所述主组件上时，当所述盖构件从所述保护位置移动到所述缩回位置时，所述盖构件朝着所述调色剂容器缩回超过所述透光构件的位置。

    Charging system, process cartridge and image forming apparatus
    8.
    发明授权
    Charging system, process cartridge and image forming apparatus 失效
    充电系统，处理盒和成像设备

    公开(公告)号：US06898401B2

    公开(公告)日：2005-05-24

    申请号：US10418055

    申请日：2003-04-18

    申请人： Keiji Okano ,  Masahiro Yoshida

    发明人： Keiji Okano ,  Masahiro Yoshida

    IPC分类号： G03G21/18 ,  G03G15/02 ,  G03G15/08

    CPC分类号： G03G15/0208 ,  G03G2215/025

    摘要： A charging system includes a rotatable member to be charged, and a rotatable charging member provided with electroconductive particles thereon and forming a nip part with the member to be charged and disposed in the nip part to charge the member to be charged. When the diameter of the member to be charged is defined as LD (mm) and the diameter of the charging member is defined as LC (mm), LD≦25 and LD×LC≧350. As a result,, in the charging system, and a process cartridge and an image-forming apparatus including such a charging system, an image-bearing member can be made small in diameter.

    摘要翻译： 充电系统包括待充电的可旋转构件和在其上设置有导电颗粒的可旋转充电构件，并且与待充电构件形成咬合部分并设置在辊隙部分中以对待充电构件充电。 当要充电的构件的直径被定义为LD（mm），并且充电构件的直径被定义为LC（mm）时，LD <= 25且LDxLC> = 350。 结果，在充电系统以及包括这种充电系统的处理盒和图像形成装置中，可以使图像承载部件的直径变小。

    Memory device for an image forming apparatus storing characteristics information about a process cartridge detachably attachable to the apparatus
    9.
    发明授权
    Memory device for an image forming apparatus storing characteristics information about a process cartridge detachably attachable to the apparatus 失效
    存储装置，用于存储关于可拆卸地附接到所述装置的处理盒的特征信息的图像形成装置

    公开(公告)号：US06686942B2

    公开(公告)日：2004-02-03

    申请号：US10300594

    申请日：2002-11-21

    申请人： Keiji Okano ,  Gaku Konishi ,  Akira Domon

    发明人： Keiji Okano ,  Gaku Konishi ,  Akira Domon

    IPC分类号： F03G1500

    CPC分类号： G03G21/1889 ,  G03G15/065 ,  G03G2221/1823 ,  G03G2221/183 ,  G06K15/128

    摘要： When a user changes a density adjusting value (developing contrast), and even when variations in the usage state of process characteristics (of the photosensitive body and the developing device) of the cartridge change, the amount of recording agent consumed can be suppressed to be low, and a sharp line image can be recorded. An image forming apparatus of this invention includes an edge detecting portion for detecting an edge of image data, an image data correcting portion for correcting image data inside the edge so as to decrease its density, a laser driving circuit for forming an electrostatic latent image on a photosensitive body, and a correction value determining table for acquiring an instruction value for giving an instruction to correct a density contrast, wherein a correction condition for image data changes in accordance with an instruction value.

    摘要翻译： 当用户改变浓度调节值（显影对比度）时，即使当盒的工艺特性（感光体和显影装置）的使用状态的变化改变时，可以抑制消耗的记录剂的量为 低，并且可以记录清晰的线图像。 本发明的图像形成装置包括用于检测图像数据的边缘的边缘检测部分，用于校正边缘内的图像数据以降低其密度的图像数据校正部分，用于形成静电潜像的激光驱动电路 感光体，以及校正值确定表，用于获取用于给出校正浓度对比度的指令的指示值，其中，图像数据的校正条件根据指令值而改变。