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1. 发明授权

US5307147A Electrophotographic recording apparatus having a plurality of developing devices which can be changed over 失效
标题翻译：具有可以切换的多个显影装置的电子照相记录装置
公开(公告)号：US5307147A
公开(公告)日：1994-04-26
申请号：US945190
申请日：1992-09-15
申请人： Takao Kumasaka , Yuzuru Simazaki , Kunio Satoh , Tomio Sugaya , Youji Hirose
发明人： Takao Kumasaka , Yuzuru Simazaki , Kunio Satoh , Tomio Sugaya , Youji Hirose
IPC分类号： G03G15/01 , G03G21/00
CPC分类号： G03G15/0126
摘要： An electrophotographic recording apparatus is provided having a reduced overall size. The space around a photosensitive member required for the developing unit to be located is minimized, more particularly, it i minimized in the lengthwise directional space. In the electrophotographic recording apparatus having a photosensitive member which moves at a predetermined speed; an exposure device for exposing the photosensitive member; a developing unit for developing an electrostatic latent image obtained by the exposure; and a transferring device for transferring a developed visible image to a recording paper sheet or the like, the developing unit is composed of developing devices, a plurality of supporting members for supporting the developing devices and an element for rotating the supporting members. The supporting members can be rotated while making a portion adjacent to a widthwise directional end of the photosensitive member to be a supporting point in a range from a state where the surface of the photosensitive member and the surface of a developing roll of each developing device run parallel to each other to a state where they are positioned substantially perpendicular to each other.
摘要翻译：提供具有减小的总体尺寸的电子照相记录装置。显影单元所需的感光构件周围的空间被最小化，更特别地，其在纵向方向空间中被最小化。在具有以预定速度移动的感光构件的电子照相记录装置中; 用于曝光感光构件的曝光装置; 用于显影通过曝光获得的静电潜像的显影单元; 以及用于将显影的可见图像转印到记录纸张等的转印装置，显影单元由显影装置，用于支撑显影装置的多个支撑构件和用于旋转支撑构件的元件组成。支撑构件可以在使感光构件的宽度方向端部附近的部分成为支撑点的同时旋转，其范围从感光构件的表面和每个显影装置的显影辊的表面运行的状态彼此平行地放置到彼此基本垂直的位置的状态。

2. 发明授权

US5315353A Image recording method including determining a gap between a photosensitive medium and a developing roller and apparatus therefor 失效
标题翻译：图像记录方法，包括确定感光介质和显影辊之间的间隙及其装置
公开(公告)号：US5315353A
公开(公告)日：1994-05-24
申请号：US951122
申请日：1992-09-25
申请人： Yuzuru Simazaki , Takao Kumasaka , Kunio Satoh , Youji Hirose
发明人： Yuzuru Simazaki , Takao Kumasaka , Kunio Satoh , Youji Hirose
IPC分类号： G03G15/00 , G03G15/01 , G03G15/09
CPC分类号： G03G15/09 , G03G15/0126
摘要： An image recording apparatus including a photosensitive medium. A voltage is applied between the photosensitive medium and a developing sleeve of a developing unit, and a current flowing between the photosensitive medium and the developing sleeve is measured to be converted into a pulse waveform which is then compared by a predetermined reference value. On the basis of the result of the comparison, a gap is determined between the photosensitive medium and the developing unit, which is then advanced or retracted toward or from the photosensitive medium in accordance with the determined gap. Owing to the recording method carried out by the image recording apparatus, the gap can be selectively determined by observing the current waveform pattern of the current flowing between the photosensitive medium and the developing sleeve while decreasing gradually the gap therebetween, whereby a relation between the gap and height of a magnetic brush can definitely be established. Since the gap can be set within a range from a value representing an initial contact state in which the magnetic brush starts to contact with the photosensitive medium to a value representing a wholly contact state in which the whole magnetic brush contacts with the photosensitive medium with the aid of a current curve of the current flowing between the photosensitive medium and the developing sleeve, a contacting force of the magnetic brush bearing on the photosensitive medium can be weakened.
摘要翻译：一种包括感光介质的图像记录装置。在感光介质和显影单元的显影套筒之间施加电压，并且测量在感光介质和显影套筒之间流动的电流，以转换成脉冲波形，然后将其与预定参考值进行比较。基于比较的结果，在感光介质和显影单元之间确定间隙，然后根据确定的间隙向感光介质前进或退出光敏介质。由于由图像记录装置执行的记录方法，可以通过观察在感光介质和显影套筒之间流动的电流的电流波形图案来选择性地确定间隙，同时逐渐减小其间的间隙，从而间隙之间的关系磁刷的高度可以肯定地建立起来。由于间隙可以设定在表示磁刷开始与感光介质接触的初始接触状态的值的范围内，而是表示整个磁刷与感光介质接触的完全接触状态的值有助于在感光介质和显影套筒之间流动的电流的电流曲线，可以削弱磁刷轴承在感光介质上的接触力。

3. 发明授权

US5430528A Magnetic brush with bristle height equal to developing gap 失效
标题翻译：刷毛高度等于发展间隙
公开(公告)号：US5430528A
公开(公告)日：1995-07-04
申请号：US545576
申请日：1990-06-29
申请人： Takao Kumasaka , Yuzuru Simazaki , Shigetaka Fujiwara , Isamu Komatsu , Youji Hirose
发明人： Takao Kumasaka , Yuzuru Simazaki , Shigetaka Fujiwara , Isamu Komatsu , Youji Hirose
IPC分类号： G03G13/09 , G03G15/01 , G03G15/09
CPC分类号： G03G13/09 , G03G15/0126 , G03G15/09
摘要： In a developing apparatus in which a developer containing magnetic particles is carried on a developer carrier to form a magnetic brush and a latent image on a latent image carrier opposing the developer carrier is developed by the magnetic brush, the magnetic brush bristle height and the developing gap are controlled to keep density of a first color image and density of a second and the ensuing color images in color development at predetermined values or more, thereby maintaining quality of printed images stably. There are also provided method and apparatus of measuring the bristle height of the magnetic brush of the developing apparatus, which bristle height is a parameter indispensable for control of the above developing condition, under the dynamic condition that the developing roller rotates.
摘要翻译：在显影装置中，将包含磁性颗粒的显影剂载于显影剂载体上以形成磁刷，并且与显影剂载体相对的潜像载体上的潜像由磁刷显影，磁刷刷高度和显影控制间隙以将第一彩色图像的密度和第二颜色的浓度以及颜色显影中的随后的彩色图像保持在预定值以上，从而保持打印图像的质量。还提供了在显影辊旋转的动态条件下测量显影装置的磁刷的刷毛高度的方法和装置，该刷毛高度是用于控制上述显影条件不可缺少的参数。

4. 发明授权

US5291253A Corona deterioration and moisture compensation for transfer unit in an electrophotographic apparatus 失效
标题翻译：电子照相设备中转印单元的电晕劣化和湿度补偿
公开(公告)号：US5291253A
公开(公告)日：1994-03-01
申请号：US629419
申请日：1990-12-18
申请人： Takao Kumasaka , Yuzuru Simazaki , Yasuo Takuma , Masato Yamada , Nobuyoshi Hoshi
发明人： Takao Kumasaka , Yuzuru Simazaki , Yasuo Takuma , Masato Yamada , Nobuyoshi Hoshi
IPC分类号： G03G15/16 , G03G15/14
CPC分类号： G03G15/1645
摘要： A transfer apparatus for electrophotography is disclosed in which the resistance values of a transfer belt and the recording paper are measured, and the current value applied to a device for charging a member is set on the basis of the electrical resistance values. The charging device of the transfer belt is adapted to be taken up and reeled out and to circulate along a track. This configuration assures a stable transfer characteristic against the secular environmental variations of the component elements, lengthens the intervals of replacement of the charged member, and hence increases the mechanical life of the transfer apparatus and the electrophotographic apparatus using the same.
摘要翻译：公开了一种用于电子照相的转印装置，其中测量转印带和记录纸的电阻值，并且基于电阻值设定施加到对元件充电的装置的电流值。转印带的充电装置适于被卷取并卷出并沿着轨道循环。这种构造确保了针对组件元件的长期环境变化的稳定的传递特性，延长了带电部件的更换间隔，并因此增加了传送装置和使用其的电子照相设备的机械寿命。

5. 发明授权

US4998143A Electrophotographic image transfer member, electrophotographic image transfer device and electrophotographic recording apparatus 失效
标题翻译：电子照相图像转印构件，电子照相图像转印装置和电子照相记录装置
公开(公告)号：US4998143A
公开(公告)日：1991-03-05
申请号：US407870
申请日：1989-09-15
申请人： Takao Kumasaka , Yuzuru Simazaki , Akira Terakado , Yasuro Hori
发明人： Takao Kumasaka , Yuzuru Simazaki , Akira Terakado , Yasuro Hori
IPC分类号： G03G15/16
CPC分类号： G03G15/167 , G03G15/168 , G03G15/1685 , G03G2215/1652
摘要： An electrophotographic image transfer member of bias-roller transfer type is capable of pressing a recording medium into contact with a toner image. The image transfer member has a rotatable supporting member, an elastic member provided around the supporting member, and a conductive resin layer formed on the surface of the elastic member. An electrical path is formed to enable supply of a bias voltage to the conductive resin layer. An image transfer device has the image transfer member and a cleaner capable of removing toner from the image transfer member upon frictional contact therewith. An electrophotographic apparatus has an image transfer member for bringing the recording medium into pressure contact with the toner image and for applying the bias voltage, and a mechanism for bringing the image transfer member towards and away from the photosensitive member in response to a signal indicative of execution of one of several basic steps of the electrophotographic process.
摘要翻译：偏置辊转印型的电子照相图像转印构件能够使记录介质与调色剂图像接触。图像转印部件具有可旋转的支撑部件，设置在支撑部件周围的弹性部件和形成在弹性部件的表面上的导电性树脂层。形成电路以能够向导电树脂层提供偏置电压。图像转印装置具有图像转印构件和能够从图像转印构件摩擦接触时去除调色剂的清洁剂。电子照相设备具有用于使记录介质与调色剂图像压力接触并用于施加偏压的图像转印部件，以及用于响应于指示图像转印部件的信号而使图像转印部件朝向和远离光敏部件的机构执行电子照相方法的几个基本步骤之一。

6. 发明授权

US5745818A Image formation method and image formation apparatus 失效
标题翻译：图像形成方法和图像形成装置
公开(公告)号：US5745818A
公开(公告)日：1998-04-28
申请号：US214302
申请日：1994-03-17
申请人： Takao Kumasaka , Hisao Okada , Noboru Tokuyasu , Yuzuru Simazaki , Susumu Tateyama
发明人： Takao Kumasaka , Hisao Okada , Noboru Tokuyasu , Yuzuru Simazaki , Susumu Tateyama
IPC分类号： G03G15/01
CPC分类号： G03G15/0152 , G03G15/01 , G03G15/0163 , G03G2215/0495
摘要： An image formation method for forming an image of a plurality of colors through a charging step, an image exposing step, a developing step and a transferring step, wherein the image exposing step is made up of a first image exposing step and a second image exposing step, the developing step of at least one color is carried out after the first image exposing step, and in the subsequent second image exposing step, the toner image area formed by the developing step is exposed and charge latent images for forming toner images of the rest of the colors are formed while a potential of the toner image area is selectively shifted.
摘要翻译：一种用于通过充电步骤，图像曝光步骤，显影步骤和转印步骤形成多种颜色的图像的图像形成方法，其中所述图像曝光步骤由第一图像曝光步骤和第二图像曝光在第一图像曝光步骤之后执行至少一种颜色的显影步骤，并且在随后的第二图像曝光步骤中，由显影步骤形成的调色剂图像区域被曝光，并且形成用于形成显影步骤的调色剂图像的电荷潜像在调色剂图像区域的电位有选择地移动的同时形成其余的颜色。

7. 发明授权

US5008691A Multi-color electrophotograph apparatus 失效
标题翻译：多色电子照相设备
公开(公告)号：US5008691A
公开(公告)日：1991-04-16
申请号：US407859
申请日：1989-09-15
申请人： Takao Kumasaka , Yuzuru Simazaki
发明人： Takao Kumasaka , Yuzuru Simazaki
IPC分类号： G03G15/01 , B41J2/525 , B41J3/54
CPC分类号： B41J3/54 , B41J2/525
摘要： In a multi-color LBP (laser beam printer) or a full-color LBP, two image producing elements each composed of charge-exposure-develop devices are arranged around one drum, and each of the image producing elements includes a developer capable of color changing for achieving a color change developing in every one revolution. In this way, it is made possible to practice a multicolor printing or a full-color printing in two rotations of one photosensitive drum. This printer has a higher printing speed and a smaller size of the apparatus in comparison with that of a one drum four rotation system and that of a one drum one rotation system, respectively. Further, the system includes several features common to two-color LBP printing art, making it possible to conveniently utilize the latter printing art.
摘要翻译：在多色LBP（激光束打印机）或全色LBP中，由电荷曝光显影装置构成的两个图像产生元件围绕一个鼓布置，并且每个图像产生元件包括能够显色的显影剂改变每一个革命中发展的颜色变化。以这种方式，可以在一个感光鼓的两个旋转中进行多色打印或全色打印。与一个鼓四旋转系统相比，该打印机具有更高的打印速度和更小的设备尺寸，分别与一个滚筒一个旋转系统相比。此外，该系统包括两色LBP印刷技术通用的几个特征，使得可以方便地利用后一种印刷技术。

8. 发明授权

US4952951A Electrophotographic recording apparatus 失效
标题翻译：电子照相记录装置
公开(公告)号：US4952951A
公开(公告)日：1990-08-28
申请号：US391306
申请日：1989-08-09
申请人： Takao Kumasaka , Yuzuru Simazaki , Kiyohiko Tanno
发明人： Takao Kumasaka , Yuzuru Simazaki , Kiyohiko Tanno
IPC分类号： B41J2/44 , B41J2/45 , B41J2/455 , B41J2/475 , G03G15/01 , G03G15/04 , G06K15/12 , H04N1/04
CPC分类号： H04N1/0411 , G03G15/011 , G03G15/04054 , G03G15/04072 , G06K15/1247 , G06K15/1295 , H04N1/0402 , H04N1/0414 , H04N1/0432 , G03G2215/0497
摘要： An electrophotographic recording apparatus comprises an electrostatic charging device for electrostatically charging a surface of a photosensitive body, an exposure device adapted to form an electric charge latent image on the surface of the photosensitive body, a developing device for effecting developing of the electric charge latent image by using a developer containing at least a toner to thereby form a toner image, and a transferring/fixing device for transferring and fixing onto a recording sheet of paper the toner image formed on the surface of the photosensitive body, the exposure means including a laser exposure section for exposing the surface of the photosensitive body to an optical image of high resolution and a light emitting diode array exposure section for exposing the surface of the photosensitive body to an optical image of low resolution.
摘要翻译：电子照相记录装置包括用于对感光体的表面进行静电充电的静电充电装置，适于在感光体的表面上形成电荷潜像的曝光装置，用于实现电荷潜像的显影的显影装置通过使用包含至少调色剂的显影剂从而形成调色剂图像，以及用于将形成在感光体表面上的调色剂图像转印并固定在记录纸上的转印/定影装置，该曝光装置包括激光用于将感光体的表面暴露于高分辨率的光学图像的曝光部分和用于将感光体的表面暴露于低分辨率的光学图像的发光二极管阵列曝光部分。

9. 发明授权

US4947200A Developing device and multi-color recording apparatus 失效
标题翻译：显影装置和多色记录装置
公开(公告)号：US4947200A
公开(公告)日：1990-08-07
申请号：US353753
申请日：1989-05-17
申请人： Takao Kumasaka , Yuzuru Simazaki , Isamu Komatsu
发明人： Takao Kumasaka , Yuzuru Simazaki , Isamu Komatsu
IPC分类号： G03G15/01 , G03G15/08 , G03G15/09
CPC分类号： G03G15/0907 , G03G15/0126 , G03G15/09
摘要： A developing device is of non-contact development type in which a toner is jumped to a photoconductor to develop a latent image on the photoconductor. The developing device is controlled in height of a developer-agent layer on a developer roll, and sets a developing gap between the photoconductor and the developer roll in such a manner that a driving electric field required for jumping of the toner can be maintained at the air gap between the photoconductor and a developer-agent layer on the developer roll and developing bias voltage can be brought to a value lower than charged electric potential of the photo-conductor. By setting the developing bias voltage to the valve lower than the charged electric potential of the photoconductor, jumping of additional or unnecessary toner is restricted so that contamination of an image and a recording sheet can be prevented. Further, a multi-color recording apparatus having this developing device prevents toner developer agents different in color from being brought into contact with each other to form a clear multi-color image without mixing in color and contamination.
摘要翻译：显影装置是非接触显影型，其中调色剂跳到感光体上以在感光体上显影潜像。显影装置被控制在显影剂辊上的显影剂剂层的高度，并且以使得调色剂跳跃所需的驱动电场可以保持在该感光鼓和显影辊之间的方式设置在感光体和显影辊之间的显影间隙光电导体和显影剂辊上的显影剂层之间的空气间隙和显影偏压可以达到低于光导体的充电电位的值。通过将显影偏置电压设置为低于光电导体的带电电位的阀，限制附加或不必要的调色剂的跳跃，从而可以防止图像和记录片材的污染。此外，具有该显影装置的多色记录装置防止不同颜色的调色剂显影剂彼此接触以形成清晰的多色图像，而不会在颜色和污染下混合。

10. 发明授权

US4746196A Multiplexed driving method for an optical switching element employing ferroelectric liquid crystal 失效
标题翻译：使用铁电液晶的光开关元件的复用驱动方法
公开(公告)号：US4746196A
公开(公告)日：1988-05-24
申请号：US46171
申请日：1987-05-05
申请人： Takao Umeda , Tetsuya Nagata , Yuzuru Simazaki , Tatsuo Igawa , Yasuro Hori
发明人： Takao Umeda , Tetsuya Nagata , Yuzuru Simazaki , Tatsuo Igawa , Yasuro Hori
IPC分类号： G09G3/18 , G02F1/133 , G09G3/36 , G02F1/13 , G09G3/00
CPC分类号： G09G3/3629 , G09G3/3696 , G09G2310/06 , G09G2310/063 , Y10S359/90
摘要： A multiplexed driving method of an optical switching element employing ferroelectric liquid crystal with a negative dielectric anisotropy including signal electrodes and common signal electrodes arranged in matrix and a ferroelectric liquid crystal layer disposed therebetween so as to constitute pixels at the respective facing portions of the signal electrodes and the common signal electrodes comprising a step of applying a common writing signal voltage to one of the common signal electrode to select pixels to which information be written, simultaneously applying a common status holding AC signal voltage to the other common signal electrodes covering non-selected pixels and simultaneously applying one of two signal pulses with opposite polarities to the signal electrodes, whereby resultant information writing voltages formed in combination of the common writing signal voltage and the signal pulses, which are enough to determine the orientation of the ferroelectric liquid crystal molecules, are applied on the selected pixels and resultant AC status holding voltage formed in combination of the common status holding AC signal voltage and the signal pulses which determine the limited bias voltage for the resultant AC voltage are applied on the non-selected pixels.
摘要翻译：采用具有负介电各向异性的铁电液晶的光开关元件的多路复用驱动方法，该介质各向异性包括以矩阵形式布置的信号电极和公共信号电极，以及设置在它们之间的铁电液晶层，以在信号电极的各个相对部分处构成像素并且公共信号电极包括将公共写入信号电压施加到公共信号电极之一以选择要写入信息的像素的步骤，同时将保持AC信号电压的公共状态施加到覆盖未选择的其它公共信号电极并且同时向信号电极施加具有相反极性的两个信号脉冲之一，由此产生的共同写入信号电压和信号脉冲组合的结果信息写入电压足以确定铁电液晶分子的取向对所选择的像素进行施加，并且将合成的共同状态保持AC信号电压和确定用于所得AC电压的限制偏置电压的信号脉冲形成的合成AC状态保持电压施加在未选择的像素上。

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