公开(公告)号：US06272306B1

公开(公告)日：2001-08-07

申请号：US09416947

申请日：1999-10-13

申请人： Masanobu Saito ,  Keiji Okano ,  Gaku Konishi ,  Yasushi Shimizu ,  Hiroshi Satoh ,  Akira Domon ,  Satoru Motohashi

发明人： Masanobu Saito ,  Keiji Okano ,  Gaku Konishi ,  Yasushi Shimizu ,  Hiroshi Satoh ,  Akira Domon ,  Satoru Motohashi

IPC分类号： G03G1509

CPC分类号： G03G9/0819 ,  G03G9/097 ,  G03G13/09

摘要： A developing apparatus includes a developer bearing member for bearing and carrying developer to a developing area. A developer is borne on the developer bearing member, wherein the developer has a weight average particle size not exceeding 6.5 &mgr;m and contains an external additive of a charging polarity opposite to that of the developer. A voltage application device applies a voltage to the developer bearing member, wherein the voltage including at least a first voltage V1 for acting on the developer in a direction from the developer bearing member toward an image bearing member and a second voltage V2 for acting on the developer in a direction from an image bearing member toward said developer bearing member, and a charged potential VL of the image bearing member, a latent image potential VD a distance H between the developer bearing member and an image bearing member, and wherein the voltages V1 and V2 satisfy a following relationships: |V1−VL|/H≦3.7×10−6 V/m; and |V2−VD|/H≦2.9×10−6 V/m.

摘要翻译： 显影装置包括用于将显影剂承载并承载在显影区域上的显影剂承载部件。 显影剂承载在显影剂承载构件上，其中显影剂的重均粒径不超过6.5μm，并且包含与显影剂相反的充电极性的外部添加剂。 电压施加装置向显影剂承载部件施加电压，其中包括至少第一电压V1的电压在显影剂承载部件朝向图像承载部件的方向上作用在显影剂上，以及第二电压V2用于作用在显影剂承载部件上 显影剂从图像承载部件朝向显影剂承载部件的方向以及图像承载部件的带电电位VL，潜像电位VD，显影剂承载部件和图像承载部件之间的距离H，并且其中电压V1 V2满足以下关系：

公开(公告)号：US6167212A

公开(公告)日：2000-12-26

申请号：US401371

申请日：1999-09-22

申请人： Hiroshi Satoh ,  Keiji Okano ,  Masanobu Saito ,  Gaku Konishi ,  Yasushi Shimizu ,  Akira Domon ,  Satoru Motohashi

发明人： Hiroshi Satoh ,  Keiji Okano ,  Masanobu Saito ,  Gaku Konishi ,  Yasushi Shimizu ,  Akira Domon ,  Satoru Motohashi

IPC分类号： G03G15/06 ,  G03G15/08

CPC分类号： G03G15/065 ,  G03G2215/0614

摘要： The present invention relates to a development density adjusting method in which development density is adjusted by varying ratio of application time of a voltage having the first voltage value to application time of a voltage having the second voltage value in one period, and difference between a potential of the developer bearing member and a potential of the electrostatic latent image, when the voltage having the first voltage value is applied to the developer bearing member.

摘要翻译： 发明密度调整方法技术领域本发明涉及一种开发密度调整方法，其中，通过使具有第一电压值的电压的施加时间与具有一个周期中的第二电压值的电压的施加时间的变化比例， 当具有第一电压值的电压被施加到显影剂承载部件上时，显影剂承载部件的电位和静电潜像的电位。

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。

公开(公告)号：US06532030B2

公开(公告)日：2003-03-11

申请号：US09986564

申请日：2001-11-09

申请人： Keiji Okano ,  Gaku Konishi ,  Akira Domon

发明人： Keiji Okano ,  Gaku Konishi ,  Akira Domon

IPC分类号： B41J2385

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。

公开(公告)号：US06448989B1

公开(公告)日：2002-09-10

申请号：US08935699

申请日：1997-09-23

申请人： Yasushi Shimizu ,  Masanobu Saito ,  Gaku Konishi ,  Hiroshi Sato

发明人： Yasushi Shimizu ,  Masanobu Saito ,  Gaku Konishi ,  Hiroshi Sato

IPC分类号： B41J2385

CPC分类号： G06K15/1209

摘要： The present invention relates to an image forming apparatus in which an electrostatic latent image is formed on an electrophotographic photosensitive member with digital light, and electrostatically developed with a developer to form a developed image. The apparatus has an exposure device for normally increasing the reflection density only in a specified region on the photosensitive member in a white image portion where no image is basically formed, in the horizontal scanning direction of the digital light. For example, a small amount of developer is supplied to either end of the photosensitive member having the tendency that the amount of the developer supplied is small, thereby preventing the occurrence of image flow at either end.

摘要翻译： 本发明涉及一种图像形成装置，其中静电潜像用数字光形成在电子照相感光构件上，并用显影剂静电显影以形成显影图像。 该装置具有仅在数字光的水平扫描方向上仅在基本形成图像的白色图像部分中的感光构件的特定区域中正常增加反射浓度的曝光装置。 例如，少量的显影剂被供给到感光构件的任一端，其倾向于提供的显影剂的量很小，从而防止在任一端发生图像流动。

公开(公告)号：US06600886B2

公开(公告)日：2003-07-29

申请号：US09939585

申请日：2001-08-28

申请人： Shinichi Tsukida ,  Gaku Konishi ,  Nobuo Komiya

发明人： Shinichi Tsukida ,  Gaku Konishi ,  Nobuo Komiya

IPC分类号： G03G1500

CPC分类号： G03G15/0216

摘要： An image forming apparatus includes a rotatable member to be charged; a rotatable charge member for electrically charging the member to be charged, the charge member being contactable to the member to be charged; and a moving element for moving the member to be charged and the charge member in a longitudinal direction of the member to be charged.

摘要翻译： 图像形成装置包括：被充电的可旋转构件; 可旋转的充电构件，用于对要充电的构件进行充电，所述充电构件可与要充电的构件接触; 以及用于沿要被充电的构件的纵向方向移动要充电的构件和充电构件的移动元件。

公开(公告)号：US5740509A

公开(公告)日：1998-04-14

申请号：US499124

申请日：1995-07-07

申请人： Takashi Hibi ,  Takeo Shoji ,  Gaku Konishi

发明人： Takashi Hibi ,  Takeo Shoji ,  Gaku Konishi

IPC分类号： G03G15/08 ,  G03G15/09 ,  G03G21/18 ,  H01F7/02

CPC分类号： G03G15/0921

摘要： A magnet roller including a columnar magnet with a through bore having a cross-section defining a thickness of the columnar magnet which is uneven along a circumference thereof, wherein a most thick portion of the columnar magnet has a strongest magnetic pole. The columnar magnet may be made from a resin material containing a magnetic powder. The bore cross-section may be non-circular, D-shaped, or rectangular. An insertion member may be inserted into the through bore to fixedly support the magnet roller.

摘要翻译： 一种磁性辊，包括具有通孔的柱状磁体，所述圆柱形磁体具有限定所述柱状磁体的厚度的横截面，所述圆柱形磁体沿其圆周不均匀，其中所述柱状磁体的最厚部分具有最强的磁极。 柱状磁体可以由含有磁性粉末的树脂材料制成。 钻孔横截面可以是非圆形，D形或矩形。 插入构件可以插入到通孔中以固定地支撑磁性辊。