公开(公告)号：US4797335A

公开(公告)日：1989-01-10

申请号：US96818

申请日：1987-09-10

申请人： Seiichiro Hiratsuka ,  Satoshi Haneda ,  Hisashi Shoji

发明人： Seiichiro Hiratsuka ,  Satoshi Haneda ,  Hisashi Shoji

IPC分类号： G03G15/09

CPC分类号： G03G15/0907

摘要： A developing method wherein an oscillating electric field is formed in a development area between an image retainer; and a developer feeding carrier of a composite developer containing a chargeable component, and the oscillating waveform of the oscillating electric field is varied to provide an adjustment of the development performance. Preferably, the oscillating electric field is an alternating electric field. The oscillating waveform is modified by varying the amplitude, bias, selection time for a time-selected waveform transformation, or frequency thereof.

摘要翻译： 一种显影方法，其中在图像保持器之间的显影区域中形成振荡电场; 以及包含可充电组分的复合显影剂的显影剂供给载体，并且改变振荡电场的振荡波形以提供显影性能的调整。 优选地，振荡电场是交变电场。 通过改变时间选择的波形变换的幅度，偏置，选择时间或其频率来修改振荡波形。

公开(公告)号：US4679929A

公开(公告)日：1987-07-14

申请号：US868020

申请日：1986-05-29

申请人： Satoshi Haneda ,  Hisashi Shoji ,  Seiichiro Hiratsuka

发明人： Satoshi Haneda ,  Hisashi Shoji ,  Seiichiro Hiratsuka

IPC分类号： G03G13/01 ,  G03G13/08

CPC分类号： G03G13/01 ,  G03G13/013

摘要： A method of reproducing multiplex images wherein an electrostatic image is formed on an image retainer by using a common electrostatic image forming device, the electrostatic image formed on the image retainer is developed, the steps of the above are repeated to superpose a plurality of toner images on the image retainer, and the toner images is transferred on a recording paper by one step. The developings other than the first time developing are carried out in such a manner that the surface of a developer layer on a developer feeding carrier does not contact with the surface of the toner image on the image retainer.

公开(公告)号：US06978109B2

公开(公告)日：2005-12-20

申请号：US10793849

申请日：2004-03-08

申请人： Hisashi Shoji ,  Tsukuru Kai ,  Kei Yasutomi ,  Nekka Matsuura ,  Nobutaka Takeuchi ,  Hirokatsu Suzuki

发明人： Hisashi Shoji ,  Tsukuru Kai ,  Kei Yasutomi ,  Nekka Matsuura ,  Nobutaka Takeuchi ,  Hirokatsu Suzuki

IPC分类号： G03G9/10 ,  G03G13/09 ,  G03G15/09

CPC分类号： G03G9/10 ,  G03G13/09 ,  G03G2215/0119 ,  G03G2215/0177

摘要： An electrophotographic image forming apparatus of the present invention frees images from various defects including the thinning of horizontal lines, the omission of the trailing edge of an image, background contamination, granularity particular to a halftone image, carrier scattering, and image noise. Further, the apparatus of the present invention solves problems ascribable to patches used to sense image density. Moreover, the apparatus of the present invention faithfully reproduces tonality and has a high developing ability.

摘要翻译： 本发明的电子照相图像形成装置可以从各种缺陷中释放图像，包括水平线的变薄，图像的后缘的遗漏，背景污染，半色调图像特有的粒度，载体散射和图像噪声。 此外，本发明的装置解决了归因于用于检测图像密度的贴片的问题。 此外，本发明的装置忠实地再现音调并具有高显影能力。

公开(公告)号：US20050154562A1

公开(公告)日：2005-07-14

申请号：US10986781

申请日：2004-11-15

申请人： Nekka Matsuura ,  Hisashi Shoji ,  Satoshi Ouchi ,  Katsuaki Miyawaki ,  Osamu Satoh ,  Masaaki Yamada ,  Shuji Hirai ,  Yoshinori Nakagawa ,  Yasushi Nakazato ,  Tomoko Takahashi ,  Takashi Seto ,  Seiji Hoshino

发明人： Nekka Matsuura ,  Hisashi Shoji ,  Satoshi Ouchi ,  Katsuaki Miyawaki ,  Osamu Satoh ,  Masaaki Yamada ,  Shuji Hirai ,  Yoshinori Nakagawa ,  Yasushi Nakazato ,  Tomoko Takahashi ,  Takashi Seto ,  Seiji Hoshino

IPC分类号： G06F11/30

CPC分类号： G06F11/008

摘要： An abnormality determining apparatus is capable of avoiding mistaken determinations due to the normal value of information obtained by an information obtaining unit differing according to the content of specific information such as the operating mode setting, and deterioration of the determination precision due to a change in the user of a detection subject. The abnormality determining apparatus comprises an information storage unit for storing normal index information serving as an index of a normal state of the detection subject, an information obtaining unit for obtaining a plurality of types of information, and an abnormality determining unit for determining the presence of an abnormality in the detection subject on the basis of the normal index information stored in the information storage unit, and the information obtained by the information obtaining unit. The information storage unit stores a plurality of normal index information having different values. The abnormality determining unit selects, at a predetermined timing, normal index information to be used to determine the presence of an abnormality in the detection subject from the plurality of normal index information.

摘要翻译： 异常判定装置能够避免由于信息获取单元根据诸如操作模式设置的特定信息的内容而不同的信息的正常值导致的错误确定，以及由于改变了的确定精度的劣化 检测对象的用户。 异常判定装置包括：信息存储单元，用于存储用作检测对象的正常状态的索引的正常索引信息;获取多种信息的信息获取单元;以及用于确定检测对象的存在的异常确定单元 根据存储在信息存储单元中的正常索引信息，检测对象的异常以及由信息获取单元获得的信息。 信息存储单元存储具有不同值的多个正常索引信息。 所述异常判定部在预定的定时中，从所述多个所述正常索引信息中选择要用于确定所述检测对象中的异常的正常索引信息。

公开(公告)号：US06721516B2

公开(公告)日：2004-04-13

申请号：US10050955

申请日：2002-01-22

申请人： Katsuhiro Aoki ,  Tsukuru Kai ,  Hajime Oyama ,  Osamu Ariizumi ,  Hisashi Shoji ,  Takashi Hodoshima ,  Yasuo Miyoshi

发明人： Katsuhiro Aoki ,  Tsukuru Kai ,  Hajime Oyama ,  Osamu Ariizumi ,  Hisashi Shoji ,  Takashi Hodoshima ,  Yasuo Miyoshi

IPC分类号： G03G1506

CPC分类号： G03G15/0907 ,  G03G15/065 ,  G03G2215/0177

摘要： An image forming apparatus of the present invention includes a bias power supply for applying a bias VB to a developer carrier on which a developer is deposited. A charge potential deposited on an image carrier, which faces the developer carrier for forming a latent image thereon, is 400 V or below in absolute value. Assume that the potential of the image carrier is lowered to VL after exposure, that a development potential is |VB−VL|, that the maximum set value of the development potential for development is |VB−VL|max, and that the development potential varies in a range satisfying relations: |VB−VL|≦|VB−VL|max+|VB−VL|max×0.2 |VB−VL|≧|VB−VL|max−|VB−VL|max×0.2 |VB−VL|max≦300 V Then image density varies by a width of 10% of image density corresponding to the maximum set value of the development potential or less.

摘要翻译： 本发明的图像形成装置包括用于将偏压VB施加到其上沉积有显影剂的显影剂载体上的偏置电源。 沉积在图像载体上的电荷电位，其面向用于在其上形成潜像的显影剂载体，其绝对值为400V或更低。 假设图像载体的电位在曝光后降低到VL，显影电位为| VB-VL |，显影发展潜力的最大设定值为| VB-VL | max，显影电位 在满足关系的范围内变化：然后图像浓度根据显影电位的最大设定值或更小的图像浓度的10％的宽度变化。

公开(公告)号：US06597885B2

公开(公告)日：2003-07-22

申请号：US09873246

申请日：2001-06-05

申请人： Tsukuru Kai ,  Nobutaka Takeuchi ,  Hisashi Shoji ,  Kei Yasutomi ,  Takeyoshi Sekine ,  Osamu Ariizumi

发明人： Tsukuru Kai ,  Nobutaka Takeuchi ,  Hisashi Shoji ,  Kei Yasutomi ,  Takeyoshi Sekine ,  Osamu Ariizumi

IPC分类号： G03G1509

CPC分类号： G03G21/00 ,  G03G15/0921

摘要： An image forming apparatus including a developing device and an image carrier facing the developing device. The developing device includes a main magnetic pole for causing a developer to magnetically deposit on an outer periphery of a developer carrier in a form of a magnet brush. The image carrier has a coefficient of friction of 0.5 or below, and a flux density in a normal direction has an attenuation ratio of 40% or above.

摘要翻译： 一种图像形成装置，包括显影装置和面向显影装置的图像载体。 显影装置包括用于使显影剂以磁刷的形式磁性沉积在显影剂载体的外周上的主磁极。 图像载体的摩擦系数为0.5以下，并且正常方向的磁通密度具有40％以上的衰减比。

公开(公告)号：US6125243A

公开(公告)日：2000-09-26

申请号：US157613

申请日：1998-09-21

申请人： Hisashi Shoji ,  Kiyotaka Ohta ,  Tsukuru Kai ,  Nobuto Yokokawa ,  Kiyonori Tsuda ,  Satoshi Hatori

发明人： Hisashi Shoji ,  Kiyotaka Ohta ,  Tsukuru Kai ,  Nobuto Yokokawa ,  Kiyonori Tsuda ,  Satoshi Hatori

IPC分类号： G03G15/08

CPC分类号： G03G15/0844 ,  G03G15/0855 ,  G03G15/0865 ,  G03G15/0868 ,  G03G2215/0668 ,  G03G2215/0685

摘要： In an image forming apparatus, a developing unit for forming an image by use of a two-ingredient type developer, i.e., toner and carrier mixture, includes a container for replenishing fresh toner and for replacing carrier deteriorated due to aging or a developer including such carrier. The developer in the developing unit will be collected based on the number of times that a part of the developer has been replenished.

摘要翻译： 在图像形成装置中，用于通过使用双成分型显影剂（即调色剂和载体混合物）形成图像的显影单元包括用于补充新鲜调色剂的容器和用于替换由于老化引起的劣化的载体或包括这种显影剂的显影剂 载体 开发单位的开发人员将根据部分开发人员的补充次数进行收集。

公开(公告)号：US5970280A

公开(公告)日：1999-10-19

申请号：US154499

申请日：1998-09-17

申请人： Hirokatsu Suzuki ,  Hisashi Shoji

发明人： Hirokatsu Suzuki ,  Hisashi Shoji

IPC分类号： G03G15/06

CPC分类号： G03G15/065

摘要： An image forming apparatus includes an image support which supports an electrostatic latent image on a surface of the image support. A developing unit has a developing agent support which retains a developing agent, including a toner and carriers, contained in the developing unit. The developing unit converts the latent image on the image support into a toner image by causing the toner to adhere to the surface of the image support. A developing bias supplying unit supplies a developing bias voltage to the developing agent support of the developing unit, the developing bias voltage being one of a DC bias voltage and an AC bias voltage. A timer measures a non-driven period of the developing agent in the developing unit. A control unit selects one of the DC bias voltage and the AC bias voltage from the developing bias supplying unit based on the non-driven period measured by the timer, and controls the developing bias voltage at an output of the developing bias supplying unit such that the selected one of the DC bias voltage and the AC bias voltage is supplied to the developing agent support.

摘要翻译： 图像形成装置包括支持图像载体的表面上的静电潜像的图像载体。 显影单元具有保持包含在显影单元中的显影剂，包括调色剂和载体的显影剂载体。 显影单元通过使调色剂粘附到图像载体的表面上将图像载体上的潜像转换成调色剂图像。 显影偏压供应单元将显影偏压提供给显影单元的显影剂载体，显影偏压是DC偏置电压和AC偏压之一。 定时器测量显影单元中的显影剂的非驱动时间。 控制单元基于由定时器测量的非驱动周期从显影偏压供应单元中选择DC偏置电压和AC偏压中的一个，并且控制显影偏压供应单元的输出处的显影偏压，使得 将所选择的一个DC偏置电压和AC偏置电压提供给显影剂载体。

公开(公告)号：US5337075A

公开(公告)日：1994-08-09

申请号：US845590

申请日：1992-03-04

申请人： Tomoko Takahashi ,  Hisashi Shoji

发明人： Tomoko Takahashi ,  Hisashi Shoji

IPC分类号： B41J2/44 ,  B41J2/45 ,  B41J2/455 ,  G03G15/04 ,  G06K15/12 ,  H04N1/036 ,  H04N1/04 ,  H04N1/23 ,  H04N1/387 ,  H04N1/40 ,  B41J2/435

CPC分类号： H04N1/40043 ,  G06K15/1247 ,  H04N1/40031

摘要： An image forming apparatus capable of readily changing the pixel density of an image to be formed on an image carrier and, therefore, stabilizing image reproduction. To change the pixel density, the apparatus turns on, among light emitting elements arranged in a higher density than input image data, a plurality of light emitting elements per pixel or by changing the number of light emitting elements per pixel and the turn-on time thereof.

摘要翻译： 一种图像形成装置，其能够容易地改变要形成在图像载体上的图像的像素密度，并因此稳定图像再现。 为了改变像素密度，在以比输入图像数据更高的密度布置的发光元件中的每个像素的多个发光元件或通过改变每个像素的发光元件的数量和导通时间 其中。

公开(公告)号：US5157483A

公开(公告)日：1992-10-20

申请号：US722404

申请日：1991-06-20

申请人： Hisashi Shoji ,  Seiichiro Hiratsuka

发明人： Hisashi Shoji ,  Seiichiro Hiratsuka

IPC分类号： G03G15/01 ,  H04N1/50 ,  H04N1/60

CPC分类号： H04N1/508 ,  G03G15/01 ,  H04N1/6025

摘要： A multicolor image forming method includes a first step of optically scanning and color separating an original so as to obtain first image signals corresponding to R, G and B multicolor components, a second step of parallelly inputting the first image signals as address signals to a reference memory storing at least one reference table representative of at least two different types of color correction for converting the first image signals into second image signals corresponding to at least Y, M and C multicolor components, a third step of selecting second image signals corresponding to one color component from the second image signals corresponding to the multicolor components output from the reference memory, a fourth step of providing a latent image made by image exposure onto a moveable image carrier having a photoconductive property based on the second image signals corresponding to the color component selected in the third step, a fifth step of developing the latent image formed on the image carrier in the fourth step using a chromatic toner, a sixth step of repeating the third, fourth, and fifth steps while changing color components of the second image signals selected in the third step and the color toners used in the fifth step, and a seventh step of transferring a multicolor toner image formed on the image carrier to the transfer material.

摘要翻译： 多色图像形成方法包括：光学扫描和颜色分离原稿以获得对应于R，G和B多色分量的第一图像信号的第一步骤;将第一图像信号作为地址信号并行输入到参考的第二步骤 存储代表至少两种不同类型的颜色校正的至少一个参考表，用于将第一图像信号转换成对应于至少Y，M和C多色分量的第二图像信号;第三步骤，选择对应于一个 来自对应于从参考存储器输出的多色分量的第二图像信号的颜色分量;第四步骤，基于对应于颜色分量的第二图像信号，将通过图像曝光制成的潜像提供到具有光导特性的可移动图像载体上 在第三步骤中选择的第五步骤，使形成的潜像显影 在使用彩色调色剂的第四步骤中的图像载体上，重复第三，第四和第五步骤的第六步骤，同时改变在第三步骤中选择的第二图像信号的颜色分量和在第五步骤中使用的彩色调色剂， 以及将形成在图像载体上的多色调色剂图像转印到转印材料上的第七步骤。