公开(公告)号：US4878082A

公开(公告)日：1989-10-31

申请号：US166209

申请日：1988-03-10

申请人： Kouji Matsushita ,  Keigo Tange ,  Shizuo Yuge

发明人： Kouji Matsushita ,  Keigo Tange ,  Shizuo Yuge

IPC分类号： G03G15/00 ,  G03G15/08

CPC分类号： G03G15/0855 ,  G03G15/5041 ,  G03G2215/00042

摘要： An automatic image density control apparatus, wherein an original placed on a document table and a reference image pattern provided on one edge of the document table and having a image portion or half-tone portion and a non-image portion are scanned, and by way of an exposure, their electrostatic latent images are formed on a photosensitive member on which the non-developing portion with no developer is also formed, and by means of a density sensor for detecting the image density, the initial image density of the non-developing portion and the image density which varies as the time elapses are detected and by the ratio of them, the image density of the image portion or half-tone portion and the non-image portion of the reference image pattern are corrected, and according to the respective preset reference values of the image portion or half-tone portion and non-image portion and their corrected image density, the image portion or half-tone portion density and the non-image portion density of an image are uniformly controlled.

摘要翻译： 一种自动图像浓度控制装置，其中放置在原稿台上的原稿和设置在文件台的一个边缘上并具有图像部分或半色调部分和非图像部分的参考图像图案被扫描 曝光的静电潜像形成在未形成非显影剂的非显影部分的感光部件上，通过用于检测图像浓度的浓度传感器，形成非显影剂的初始图像浓度 检测出随着时间的流逝而变化的图像浓度，并且通过比例来校正图像部分或半色调部分的图像浓度和参考图像图案的非图像部分，并且根据 图像部分或半色调部分和非图像部分及其校正图像浓度，图像部分或半色调部分密度和非图像部分密度的各个预设参考值 图像统一控制。

公开(公告)号：US5466938A

公开(公告)日：1995-11-14

申请号：US314086

申请日：1994-09-28

申请人： Yasunori Nakayama ,  Noboru Yonekawa ,  Kouji Matsushita ,  Yasuhiro Nakagami ,  Shizuo Yuge

发明人： Yasunori Nakayama ,  Noboru Yonekawa ,  Kouji Matsushita ,  Yasuhiro Nakagami ,  Shizuo Yuge

IPC分类号： G03G15/02 ,  H01T19/04

CPC分类号： H01T19/04 ,  G03G15/0291 ,  G03G2215/028

摘要： Grid wires arranged in an axial direction of a photoconductive drum have a positional relation with projecting electrodes arranged at regular intervals in an axial direction of the photoconductive drum at a position opposite to the surface of the photoconductive drum wherein the grid wires and the projecting electrodes positioned adjacent to each other are equally arranged in distance to uniformly discharge an electric charge to the surface of the photoconductive drum from each of the projecting electrodes so that uniform charging can be accomplished in an axial direction of the photoconductive drum.

摘要翻译： 在感光鼓的轴向布置的网格线与在感光鼓的轴向方向上以规则间隔布置在与感光鼓的表面相对的位置处的位置关系，其中网格线和突出电极位于 彼此相邻的距离均匀地设置成从每个突出电极均匀地将电荷均匀地放电到感光鼓的表面，使得可以在感光鼓的轴向方向上实现均匀充电。

公开(公告)号：US5044313A

公开(公告)日：1991-09-03

申请号：US430243

申请日：1989-11-01

申请人： Shizuo Yuge ,  Kouji Matsushita ,  Hidetoshi Kawabata

发明人： Shizuo Yuge ,  Kouji Matsushita ,  Hidetoshi Kawabata

IPC分类号： G03G15/08 ,  G03G15/09

CPC分类号： G03G15/09

摘要： An electrostatic latent image developing apparatus has a developing sleeve drivingly rotatable for supplying a magnetic developer to an image bearing surface of an electrostatic latent image bearing member, a casing covering at least a portion of the developing sleeve and extending from a portion where the sleeve is opposed to the electrostatic latent image bearing member to a position where the developer is supplied to the sleeve with respect to the direction of rotation of the developing sleeve, the casing defining a gap with the sleeve, magnets fixedly positioned in the sleeve and having a plurality of poles opposed to the casing, the plurality of poles including first and second poles of same polarity and a third pole of different polarity, the first and second poles being positioned adjacently with no pole therebetween, whereby a first bristle of developer for sealing the gap is formed by the first and second poles and a second bristle of developer for sealing the gap is formed by the third pole.

公开(公告)号：US4984022A

公开(公告)日：1991-01-08

申请号：US275505

申请日：1988-11-23

申请人： Kouji Matsushita ,  Shizuo Yuge

发明人： Kouji Matsushita ,  Shizuo Yuge

IPC分类号： G03G15/06 ,  G03G15/09

CPC分类号： G03G15/065 ,  G03G15/0907

摘要： An image forming apparatus including a photosensitive member, a developing sleeve for developing an electrostatic latent image formed on the photosensitive member by using a developer, and control means for controlling the application of bias voltage to the sleeve wherein the bias voltage is controlled so as to be maintained a predetermined time period after the image formation is interrupted.

摘要翻译： 一种图像形成装置，包括感光构件，用于使用显影剂在感光构件上形成的静电潜像显影的显影套筒，以及用于控制向套筒施加偏置电压的控制装置，其中偏置电压被控制为 在图像形成中断之后保持预定的时间段。

公开(公告)号：US4887130A

公开(公告)日：1989-12-12

申请号：US234071

申请日：1988-08-12

申请人： Shizuo Yuge ,  Kouji Matsushita ,  Hidetoshi Kawabata

发明人： Shizuo Yuge ,  Kouji Matsushita ,  Hidetoshi Kawabata

IPC分类号： G03G15/08 ,  G03G15/09

CPC分类号： G03G15/09

摘要： An electrostatic latent image developing apparatus has a magnet housed in a developing sleeve and having at least one magnetized portion including adjacent poles of the same polarity. At least one of the poles of the magnetized portion is opposed to the casing of the developing apparatus, between the position where the developing sleeve is opposed to an electrostatic latent image bearing member and the position where the sleeve is opposed to a developer agitating roller. The other pole adjacent to and having the same polarity as this pole is positioned downstream from the pole with respect to the direction of rotation of the sleeve. Consequently, the upstream pole of the magnetized portion acts to retain a portion of developer between the developing sleeve and the casing, whereby the toner is prevented from spilling over the casing.

摘要翻译： 静电潜像显影装置具有容纳在显影套筒中的磁体，并且具有包括相同极性的相邻极点的至少一个磁化部分。 在显影套筒与静电潜像承载部件相对的位置与套筒与显影剂搅拌辊相对的位置之间，磁化部分的至少一个极与显影装置的壳体相对。 与该极相邻并具有相同极性的另一极相对于套筒的旋转方向定位在杆的下游。 因此，磁化部分的上游极起作用以将显影剂的一部分保持在显影套筒和壳体之间，从而防止调色剂溢出到外壳上。

公开(公告)号：US4287850A

公开(公告)日：1981-09-08

申请号：US884184

申请日：1978-03-07

申请人： Toshio Yamamoto ,  Shizuo Yuge

发明人： Toshio Yamamoto ,  Shizuo Yuge

IPC分类号： G03G15/09

CPC分类号： G03G15/0914

摘要： A magnetic brush developing apparatus for use in a toner powder image transfer type electrophotographic copying machine which includes an outer cylinder fixedly disposed at a position to confront a photosensitive member or photoreceptor, a magnet roller rotatably accommodated in the outer cylinder for being rotatably driven, a toner tank or hopper containing therein electrically conductive and magnetically attractive toner particles having high resistance and disposed above the outer cylinder for supplying the toner particles onto the outer cylinder, an excessive developing region for developing an image portion of an electrostatic latent image formed on said photosensitive member with sufficient density, and a toner removing region for removing toner particles adhering at least to non-image portion of the electrostatic latent image.

摘要翻译： 一种用于调色剂粉末图像转印型电子照相复印机的磁刷显影装置，其包括固定地设置在面对感光构件或感光体的位置处的外筒，可旋转地容纳在外筒中的用于旋转驱动的磁辊， 包含其中具有高电阻并且设置在外圆柱体上方的导电和磁吸引性调色剂颗粒的调色剂罐或料斗，用于将调色剂颗粒供应到外筒上，用于显影形成在所述感光体上的静电潜像的图像部分的过度显影区域 具有足够密度的构件和用于去除至少粘附到静电潜像的非图像部分的调色剂颗粒的调色剂移除区域。

公开(公告)号：US4676192A

公开(公告)日：1987-06-30

申请号：US654670

申请日：1984-09-26

申请人： Shizuo Yuge ,  Susumu Sakakibara

发明人： Shizuo Yuge ,  Susumu Sakakibara

IPC分类号： G03G15/09

CPC分类号： G03G15/09 ,  G03G2215/0609

摘要： A dry process developing apparatus of a type in which, by supplying toner contained in a toner replenishing tank with respect to magnetic carrier magnetically attracted onto an outer peripheral surface of a developing sleeve, a magnetic developing material composed of the magnetic carrier and toner is prepared on the outer peripheral surface of the developing sleeve for developing an electrostatic latent image supported on the surface of an electrostatic latent image support member by the use of this developing material. The developing apparatus includes a space chamber defined between a bristle height restricting member and a front restricting member so as to open towards the outer peripheral surface of the developing sleeve, and preliminarily loaded with the magnetic carrier, and a toner supplying section for supplying the toner with respect to the outer peripheral surface of the developing sleeve at the upstream side of the front restricting member.

摘要翻译： 一种干法处理显影装置，其中通过将包含在调色剂补充槽中的调色剂相对于磁性吸引到显影套筒的外周表面上的磁性载体供应，制备由磁性载体和调色剂组成的磁性显影材料 在显影套筒的外周表面上，通过使用该显影材料来显影静电潜像载体的表面上的静电潜像。 显影装置包括限定在刷毛高度限制构件和前限制构件之间的空间室，以朝向显影套筒的外周表面打开，并且预先装载有磁性载体;以及调色剂供应部分，用于供应调色剂 相对于前限制构件的上游侧的显影套筒的外周面。

公开(公告)号：US4572102A

公开(公告)日：1986-02-25

申请号：US586762

申请日：1984-03-06

申请人： Shizuo Yuge ,  Tateki Oka ,  Susumu Sakakibara ,  Naoki Toyoshi

发明人： Shizuo Yuge ,  Tateki Oka ,  Susumu Sakakibara ,  Naoki Toyoshi

IPC分类号： G03G15/08 ,  G03G15/00

CPC分类号： G03G15/0855

摘要： A toner replenishment control method for a developing material including two kinds of toners triboelectrically chargeable to polarities opposite to each other, which includes the steps of causing the respective toners contained in the developing material to separately adhere to each of first and second surface areas of a detecting member having predetermined potentials, obtaining first and second detecting signals substantially proportional to amounts of the respective toners which have adhered to the first and second surface areas, the first and second detected signals being set to become equal to each other when a mixing ratio of the respective toners in the developing material is set at a standard mixing ratio, relatively comparing the first and second detected signals, and in the presence of a difference therebetween, replenishing either one of the respective toners to the developing material for eliminating the difference.

摘要翻译： 一种用于显影材料的调色剂补充控制方法，包括以彼此相反的极性摩擦充电的两种调色剂，其包括使包含在显影材料中的各个调色剂分别粘附到第一和第二表面区域中的每一个的步骤 检测构件具有预定电位，获得与粘附到第一和第二表面区域的各个调色剂的量基本成比例的第一和第二检测信号，当第一和第二检测信号的混合比为 将显影材料中的各个调色剂设定为标准混合比，相对比较第一和第二检测信号，并且在存在差异的同时，将各个调色剂中的任一个补充至显影材料以消除差异。

公开(公告)号：US4376813A

公开(公告)日：1983-03-15

申请号：US341148

申请日：1982-01-20

申请人： Shizuo Yuge ,  Toshio Yamamoto ,  Susumu Sakakibara

发明人： Shizuo Yuge ,  Toshio Yamamoto ,  Susumu Sakakibara

IPC分类号： G03G15/06 ,  G03G15/08 ,  G03G15/09 ,  G03G15/22 ,  G03G13/09

CPC分类号： G03G15/0907

摘要： An improved reversal development method of visualizing an electrostatic latent image through reversal development, including the steps of: forming a magnetic brush around an outer circumferential surface of a developing sleeve by the use of a developer composed of high-resistivity toner having a resistance value of 10.sup.13 .OMEGA.cm or more under an electric field of 10.sup.4 V/cm and a charge amount of 5 to 15 .mu.Q/g per unit mass generated by gaseous discharge; and applying simultaneously an a.c. bias, and a d.c. bias approximately equal to a sum of a potential of an image portion of the electrostatic latent image and a potential of its non-image portion to the magnetic brush.

摘要翻译： 一种通过反转显影使静电潜像可视化的改进的反转显影方法，包括以下步骤：通过使用由具有电阻值的高电阻调色剂构成的显影剂在显影套筒的外周表面周围形成磁刷 1013欧姆/厘米或更大，电场为104伏/厘米，电量为5至15微克/克/克，每单位质量产生气体放电; 并同时应用a.c. 偏倚和直径 大约等于静电潜像的图像部分的电位与其非图像部分对磁刷的电位的和的偏差。

公开(公告)号：US4447517A

公开(公告)日：1984-05-08

申请号：US379995

申请日：1982-05-19

申请人： Shizuo Yuge ,  Susumu Sakakibara ,  Takuma Ishikawa ,  Nobuo Kito ,  Toshio Yamamoto

发明人： Shizuo Yuge ,  Susumu Sakakibara ,  Takuma Ishikawa ,  Nobuo Kito ,  Toshio Yamamoto

IPC分类号： G03G15/06 ,  G03G13/09 ,  G03G15/09

CPC分类号： G03G15/0907

摘要： The disclosure is directed to an improved electrostatic latent image developing method in which uneven development arising from simultaneous employment of a magnetic roller rotational driving system and an AC developing bias impressing system is eliminated, without impairing the advantages available from such systems, so as to make it possible to provide developed images of good quality at high density in the application, for example, to an electrophotographic copying apparatus and the like.

摘要翻译： 本公开涉及一种改进的静电潜像显影方法，其中消除了同时使用磁辊旋转驱动系统和AC显影偏压打印系统所产生的不均匀显影，而不损害这种系统可用的优点，从而使 可以在应用中提供高密度的高质量的显影图像，例如提供到电子照相复印设备等。