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    • 22. 发明授权
    • Method of controlling toner concentration in electrophotographic
developing apparatus
    • 电子照相显影装置中调色剂浓度的控制方法
    • US4974025A
    • 1990-11-27
    • US396423
    • 1989-08-21
    • Susumu Kikuchi
    • Susumu Kikuchi
    • G03G13/08G03G15/08
    • G03G15/0849G03G15/0889
    • The present invention provides a method of controlling toner concentration in a developing apparatus that uses a two-component developer consisting of a carrier and a toner, wherein the change in toner concentration in the developing container containing the developer is not taken out as it is to carry out the toner concentration control, but an approximately periodic waveform component is lapped over the detection signal to produce a waved detection output oscillated with the detection signal between the center, then the detection output and the control standard level corresponding to a prescribed toner concentration level are compared, and a level signal "Hi" and a level signal "Lo" plus a proportional pulse signal whose pulse width changes approximately proportionally between the level signals "Hi" and "Lo", that is, three types of signals are obtained from the comparison output, thereby making the toner supply operation different in conformity with the type of the signal.
    • 本发明提供了一种控制使用由载体和调色剂组成的双组分显影剂的显影装置中的调色剂浓度的方法,其中,含有显影剂的显影容器中的调色剂浓度的变化不会如 执行调色剂浓度控制,但是在检测信号上叠加近似周期性的波形分量,以产生以中心之间的检测信号振荡的波形检测输出,然后检测输出和对应于规定调色剂浓度水平的控制标准水平 比较电平信号“Hi”和电平信号“Lo”加上脉冲宽度在电平信号“Hi”和“Lo”之间大致成比例地变化的比例脉冲信号,即从三个类型的信号获得三种类型的信号 比较输出,从而使调色剂供应操作与信号的类型不同。
    • 25. 发明授权
    • Developing apparatus and image forming apparatus including the same
    • 显影装置和包括该显影装置的图像形成装置
    • US08620190B2
    • 2013-12-31
    • US12975693
    • 2010-12-22
    • Susumu KikuchiToshifumi Hashimoto
    • Susumu KikuchiToshifumi Hashimoto
    • G03G15/08
    • G03G15/0822G03G2215/0802
    • A developing apparatus and an image forming apparatus including the developing apparatus, the developing apparatus including a developing roller, a mixing transfer unit including a first mixing transfer unit and a second mixing transfer unit, and an auxiliary mixing transfer unit disposed on a transfer path from the first mixing transfer unit to the second mixing transfer unit and to mix the developer transferred by the first mixing transfer unit and the supply toner, wherein the auxiliary mixing transfer unit includes a vertical transfer unit to vertically upward transfer the developer transferred by the first mixing transfer unit and a mixing unit to mix the developer transferred by the first mixing transfer unit and the supply toner injected from an upper side thereof and to connect the second mixing transfer unit to a through hole formed in a lower portion thereof.
    • 一种显影装置和图像形成装置,包括显影装置,显影装置包括显影辊,混合转印单元,包括第一混合转印单元和第二混合转印单元,以及辅助混合转印单元,其设置在从 第一混合转移单元到第二混合转移单元并且混合由第一混合转移单元转移的显影剂和供应调色剂,其中辅助混合转移单元包括垂直转印单元,以垂直向上转印通过第一混合物转移的显影剂 转印单元和混合单元,以混合由第一混合转印单元转印的显影剂和从其上侧注入的供给调色剂,并将第二混合转印单元连接到形成在其下部的通孔。
    • 26. 发明授权
    • Light scanning unit
    • 光扫描单元
    • US07202986B2
    • 2007-04-10
    • US10798862
    • 2004-03-12
    • Susumu Kikuchi
    • Susumu Kikuchi
    • G02B26/08
    • G02B26/125
    • A light scanning unit for adjusting image magnification and beam diameter and having a simple structure and a low-priced multi-beam shape is provided. The light scanning unit includes a composite light source in which a plurality of light sources for emitting coherent light having different wavelengths are arranged adjacent to one another and an optical axis of each light source is arranged almost parallel and which emits light at a divergence angle centering on each optical axis. An optical system comprises a collimator lens which is arranged on an approximately central axis of an optical axis of each light source constituting the composite light source and collimates the light beam emitted from the composite light source. The optical system also comprises a cylinder lens for condensing the light beam emitted from the collimator lens, and a polygonal rotating mirror for scanning the light beam condensed by the cylinder lens in a main scanning direction on an exposed surface of an exposed object. The optical system further includes an optical element, which splits light beams with respect to different wavelengths after being reflected on the polygonal rotating mirror so as to radiate a light beam in the main scanning direction on the exposed surface of the exposed object different in each coherent light having each wavelength using the polygonal rotating mirror, and an F-θ lens arranged on a light path between the optical element and the polygonal rotating mirror, and in an optical path length from a reflective surface of the polygonal rotating mirror to the exposed surface of the exposed object, an optical path length of a light beam having a short wavelength is different from an optical path length of a light beam having a long wavelength.
    • 提供了用于调整图像放大率和光束直径并具有简单结构和低价格多光束形状的光扫描单元。 光扫描单元包括复合光源,其中用于发射具有不同波长的相干光的多个光源彼此相邻布置,并且每个光源的光轴几乎平行布置,并以发散角为中心发光 在每个光轴上。 光学系统包括:准直透镜,其配置在构成复合光源的每个光源的光轴的大致中心轴上,并准直由复合光源发出的光束。 光学系统还包括用于会聚从准直透镜发射的光束的圆柱透镜和用于在曝光对象的暴露表面上沿主扫描方向扫描由柱面透镜聚光的光束的多边形旋转镜。 光学系统还包括光学元件,其在多边形旋转镜上被反射之后相对于不同波长分割光束,以便在每个相干中不同的暴露物体的暴露表面上沿主扫描方向辐射光束 使用多边形旋转镜的每个波长的光和布置在光学元件和多边形旋转镜之间的光路上的F-theta透镜,并且在从多面旋转镜的反射表面到曝光表面的光路长度 曝光物体的短波长的光束的光路长度与长波长的光束的光路长度不同。
    • 27. 发明授权
    • Two-component developer unit of electrophotographic image forming apparatus having lifting guide portion
    • 具有升降引导部分的电子照相成像设备的双组分显影单元
    • US07050745B2
    • 2006-05-23
    • US10256236
    • 2002-09-27
    • Susumu Kikuchi
    • Susumu Kikuchi
    • G03G15/08
    • G03G15/0822G03G15/09
    • A two-component developer unit of an electrophotographic image forming apparatus includes a developer rectifier having a lifting guide portion and a developer collection guide portion. The lifting guide portion guides a developer agitated by an agitating unit upward along a circumferential direction of a developer magnet roller. The developer collection guide portion keeps the developer to move down to the lifting guide portion between a developer blade and the lifting guide portion. A non-uniformity of image intensity can be solved without giving an overweight load to the developer and a photoreceptor and without increasing a driving torque of the developer and the photoreceptor.
    • 电子照相成像设备的双组分显影剂单元包括具有提升引导部分和显影剂收集引导部分的显影剂整流器。 升降引导部分沿着显影剂磁辊的圆周方向引导由搅拌单元向上搅动的显影剂。 显影剂收集引导部分保持显影剂向下移动到显影剂叶片和提升引导部分之间的提升引导部分。 可以解决图像强度的不均匀性,而不会对显影剂和感光体赋予超重负荷,并且不增加显影剂和感光体的驱动力矩。