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1. 发明授权

US5860049A Developing apparatus and picture image forming apparatus 失效
标题翻译：显影装置和图像形成装置
公开(公告)号：US5860049A
公开(公告)日：1999-01-12
申请号：US863125
申请日：1997-05-27
申请人： Takao Kumasaka , Tatsuo Igawa , Shigetaka Fujiwara , Nobuyoshi Hoshi
发明人： Takao Kumasaka , Tatsuo Igawa , Shigetaka Fujiwara , Nobuyoshi Hoshi
IPC分类号： G03G21/14 , G03G13/09 , G03G15/01 , G03G15/06 , G03G15/08 , G03G15/09
CPC分类号： G03G15/0921 , G03G13/09 , G03G2215/0609
摘要： By employing a developer using ferrite system carriers, a developing process can be carried out using a low brushing force by a magnetic portion having the same polarity in a developing unit in a developing roller. A relationship between a circumferential speed Up (mm/sec) of a photoconductor, a ratio K of a circumferential speed of a developing sleeve of the developing roller to the circumferential speed of the photoconductor, and a developing potential difference .DELTA.V (V) is set to 1.5.ltoreq.(K.times..DELTA.V/Up).ltoreq.2.1.
摘要翻译：通过采用使用铁素体系载体的显影剂，可以通过在显影辊中的显影单元中具有相同极性的磁性部分的低刷涂力进行显影处理。感光体的圆周速度Up（mm / sec），显影辊的显影套筒的圆周速度的比K与感光体的圆周速度和显影电位差DELTA V（V）之间的关系是设置为1.5

2. 发明授权

US5832350A Developing apparatus and color electrophotographic apparatus using the same 失效
标题翻译：显影装置和使用其的彩色电子照相设备
公开(公告)号：US5832350A
公开(公告)日：1998-11-03
申请号：US778577
申请日：1997-01-03
申请人： Takao Kumasaka , Kunio Fukuchi , Masayasu Anzai , Tatsuo Igawa
发明人： Takao Kumasaka , Kunio Fukuchi , Masayasu Anzai , Tatsuo Igawa
IPC分类号： G03G15/08 , G03G15/06
CPC分类号： G03G15/0808
摘要： In a developing apparatus, a developing roller has a toner layer formed on a surface thereof, which toner layer is brought into contact with a photoconductor. A magnetic conveying roller having a magnet body is arranged rotatively close to the photoconductor. A regulating plate is provided at an outer periphery of the conveying roller.
摘要翻译：在显影装置中，显影辊具有在其表面上形成的调色剂层，该调色剂层与感光体接触。具有磁体的磁性输送辊被布置成靠近光电导体。调节板设置在输送辊的外周。

3. 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。

4. 发明授权

US4821052A Flash fusing apparatus for reducing occurrence of spots on recording paper 失效
标题翻译：闪光定影装置，用于减少记录纸上斑点的发生
公开(公告)号：US4821052A
公开(公告)日：1989-04-11
申请号：US102434
申请日：1987-09-29
申请人： Teruaki Mitsuya , Takao Kumasaka , Shinichi Nishino , Masato Yamada , Shigetaka Fujiwara
发明人： Teruaki Mitsuya , Takao Kumasaka , Shinichi Nishino , Masato Yamada , Shigetaka Fujiwara
IPC分类号： G03G15/20
CPC分类号： G03G15/201
摘要： A flash lamp apparatus for reducing occurrence of spots on a recording paper wherein an overlapping portion formed between two adjacent fusing areas of the recording paper receives a first flash and a second flash from a flash lamp so as to heat and fuse a toner on the recording paper. The overlapping portion is controlled so as to reduce occurrence of spots on the recording paper by reducing an area of the overlapping portion on a recording paper. Such reduction in the overlapping portion may be obtained by controlling a frequency of the flash or controlling a feeding velocity of the recording paper. Alternatively, the fusing energy of the overlapping portion may be reduced by changing alternately the radiating energy.
摘要翻译：一种用于减少记录纸上出现斑点的闪光灯装置，其中形成在记录纸的两个相邻定影区域之间的重叠部分从闪光灯接收第一闪光和第二闪光，以便将记录上的调色剂加热并熔合纸。控制重叠部分，以通过减少记录纸上的重叠部分的面积来减少记录纸上的斑点的出现。可以通过控制闪光灯的频率或控制记录纸的进给速度来获得重叠部分的这种减少。或者，可以通过交替地改变辐射能量来减小重叠部分的融合能量。

5. 发明授权

US4959693A Duplex reproducing apparatus with device for cooling and conveying fused toner image 失效
标题翻译：具有用于冷却和传送熔融调色剂图像的装置的双面再现装置
公开(公告)号：US4959693A
公开(公告)日：1990-09-25
申请号：US266842
申请日：1988-11-03
申请人： Teruaki Mitsuya , Takao Kumasaka , Takao Umeda , Yasuro Hori , Ikuo Shimokobe , Nobuyoshi Hoshi
发明人： Teruaki Mitsuya , Takao Kumasaka , Takao Umeda , Yasuro Hori , Ikuo Shimokobe , Nobuyoshi Hoshi
IPC分类号： G03G15/00 , G03G15/20 , G03G15/23
CPC分类号： G03G15/6573 , G03G15/2064 , G03G15/234 , G03G2215/00421 , G03G2215/00586 , G03G2215/2083
摘要： An aerial recording sheet carrier is provided downstream of a fixing station. The aerial recording sheet carrier has one pair of pressure chambers with wall surfaces facing each other and in parallel. Air jets are arranged on opposite wall surfaces of the pressure chambers. A recording sheet and a toner image from the fixing station are carried by an air stream and cooled down. The toner image on the recording sheet, which is in fusion, is prevented from coming into contact with any parts, such as a recording sheet carrying passage. Thus a stain on parts due to contact with the toner image can be prevented.
摘要翻译：在定影台的下游设置有空中记录纸托架。空中记录纸托架具有一对压力室，壁面彼此面对并且平行。空气喷嘴布置在压力室的相对的壁表面上。来自定影台的记录纸和调色剂图像由气流携带并冷却。防止记录片材上的调色剂图像在熔融中与诸如记录片材传送通道的任何部分接触。因此，可以防止由于与调色剂图像接触而导致的零件上的污渍。

6. 发明授权

US5893664A Multi-color image forming apparatus having arrangements for reducing ozone generation 失效
标题翻译：具有减少臭氧产生的装置的多色成像装置
公开(公告)号：US5893664A
公开(公告)日：1999-04-13
申请号：US914882
申请日：1997-08-20
申请人： Takao Kumasaka , Nobuyoshi Hoshi
发明人： Takao Kumasaka , Nobuyoshi Hoshi
IPC分类号： G03G15/01 , G03G13/01 , G03G15/16 , G03G21/00
CPC分类号： G03G13/01 , G03G2215/0495
摘要： A multi-color image forming apparatus is capable of decreasing the amount of ozone generation which occurs during the formation of a multi-color image. For this purpose, a charged latent image having a tri-level electric potential is formed on a positive charging photoconductor by a charging means and an exposing means. A first color toner having one of a positive polarity and a negative polarity is caused to adhere onto one of the charged latent images having the highest electric potential level at a first developing unit of the apparatus, and a second color toner having the other polarity is caused to adhere onto the other of charged latent images having the lowest electric potential at a second developing unit of the apparatus. After that, the polarity of the toner having the negative polarity is reversed using a positive corona produced by a pre-transfer charging means to unify both polarities of the two color toners, and then both toners having the unified polarity are s transferred onto a sheet of paper.
摘要翻译：多色图像形成装置能够减少在形成多色图像期间发生的臭氧产生量。为此，通过充电装置和曝光装置在正充电光电导体上形成具有三电平电位的带电潜像。使具有正极性和负极性的第一颜色调色剂附着在装置的第一显影单元处具有最高电位电位的带电潜像之一，并且具有另一极性的第二彩色调色剂是导致在设备的第二显影单元附着到具有最低电势的带电潜像的另一个中。之后，使用由预转印充电装置产生的正电晕使具有负极性的调色剂的极性反转，以使两色调色剂的两个极性均匀，然后将具有统一极性的两个调色剂转印到片材上的纸。

7. 发明授权

US5574546A Developing apparatus for an electrophotographic machine 失效
标题翻译：电子照相机的显影装置
公开(公告)号：US5574546A
公开(公告)日：1996-11-12
申请号：US504314
申请日：1995-07-20
申请人： Takao Kumasaka , Yasuo Takuma , Tatsuo Igawa , Tomio Sugaya , Yasuo Kikuchi
发明人： Takao Kumasaka , Yasuo Takuma , Tatsuo Igawa , Tomio Sugaya , Yasuo Kikuchi
IPC分类号： G03G15/01 , G03G15/08 , G03G15/09 , G03G15/00
CPC分类号： G03G15/0921 , G03G2215/017 , G03G2215/018 , G03G2215/0602 , G03G2215/0634
摘要： A developing apparatus in which a stationary multipole permanent magnet is placed in a sleeve and in which development is performed by bringing a developer, which contains at least carrier and toner particles and is held on the periphery of a sleeve by use of the magnetic force of the multipole permanent magnet, into contact with a photo-conductive body owing to the rotation of the sleeve. For securing image density and for preventing the deposition of carrier onto the photo-conductive body, two magnetic pieces, each of which is arranged lengthwise in the direction of the axis thereof and which have the same polarity, are placed in a region in the multipole permanent magnet which faces the photo-conductive body in such a manner as to adjoin in the circumferential direction of said permanent magnet. This results in generation of the distribution of a magnetic field which has two peaks of magnetic force. The position at which the second one of the two peaks of the magnetic force is formed, downstream in the direction of rotation of the sleeve, is set at the nearest point between the photo-conductive body and the sleeve. Thereby, even when development is performed by bringing the developer into light contact with the photo-conductive body, the image density can be secured. Further, the carrier can be prevented from depositing on the photo-conductive body.
摘要翻译：一种显影装置，其中固定的多极永磁体被放置在套筒中，并且通过使至少包含载体和调色剂颗粒并且通过使用包含至少载体和调色剂颗粒的显影剂被保持在套筒的周边上的显影剂多极永磁体由于套筒的旋转而与光导体接触。为了确保图像浓度并且防止载体沉积到光导体上，将两个磁性片放置在多极中的一个区域中，每个磁性片沿其轴线方向纵向排列并且具有相同的极性永磁体以与所述永磁体的圆周方向相邻的方式面对光导体。这导致产生具有两个磁力峰的磁场的分布。形成磁力的两个峰值中的第二个峰的位置在套筒的旋转方向的下游位于光导体和套筒之间的最近点处。因此，即使通过使显影剂与光导体体接触而进行显影，也可以确保图像浓度。此外，可以防止载体沉积在光导体上。

8. 发明授权

US4862828A Electrophotographic recording method and apparatus with non-contact development 失效
标题翻译：具有非接触显影的电子照相记录方法和装置
公开(公告)号：US4862828A
公开(公告)日：1989-09-05
申请号：US159259
申请日：1988-02-23
申请人： Takao Kumasaka , Teruaki Mitsuya , Isamu Komatsu , Shigetaka Fujiwara , Yuzuru Shimazaki
发明人： Takao Kumasaka , Teruaki Mitsuya , Isamu Komatsu , Shigetaka Fujiwara , Yuzuru Shimazaki
IPC分类号： G03G15/09
CPC分类号： G03G15/0907 , G03G15/0921
摘要： Non-contact type developing device and method for electrophotographic recording system. The pitch of magnetic poles on a developing sleeve carrying a developer is selected to fall within a predetermined range or is varied such that the pitch increases as the circumferential distance from the point where the gap between the developer carrier member and a photosensitive member is minimum. The bias voltage applied to the developing sleeve is controlled in accordance with a change in the size of the gap between the surface of the photosensitive member and the layer of the developer on the developer carrying member. Alternatively, the bias voltage is applied throughout a period in which the charged region on the photosensitive member is opposed by the developing sleeve.
摘要翻译：非接触型显影装置和电子照相记录系统的方法。携带显影剂的显影套筒上的磁极的间距被选择为落在预定范围内，或者变化使得随着显影剂载体构件和感光构件之间的间隙最小的点的周向距离而增加。根据感光构件的表面和显影剂承载构件上的显影剂层之间的间隙的大小的变化来控制施加到显影套筒的偏置电压。或者，在感光构件上的带电区域与显影套筒相对的一段时间内施加偏置电压。

9. 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。

10. 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。

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