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1. 发明授权

US06240269B1 Image forming apparatus having a photosensitive member of amorphous silicon base and system for exposing and charging the photosensitive member 有权
标题翻译：图像形成装置具有非晶硅基底的感光构件和用于使感光构件曝光和充电的系统
公开(公告)号：US06240269B1
公开(公告)日：2001-05-29
申请号：US09301582
申请日：1999-04-29
申请人： Takaaki Kaya , Masaya Kawada , Tetsuya Karaki , Toshiyuki Ehara , Yuji Nakayama
发明人： Takaaki Kaya , Masaya Kawada , Tetsuya Karaki , Toshiyuki Ehara , Yuji Nakayama
IPC分类号： G03G1500
CPC分类号： G03G13/04
摘要： An electrophotographic process is implemented with improved ghost memory and with high chargeability even under circumstances of increased process speed or compactified structure and the electrophotographic process forms an image on a photosensitive member having a photosensitive layer through a series of steps including steps of charge elimination, charging, latent image exposure, and development to form a toner image, wherein light used in the latent image exposure step is light of a wavelength within such a range that a value of (optical memory before charging)/(sensitivity) of the photosensitive layer is not more than 1.5 times a minimum value. The optical memory before charging means lowering in chargeability due to light irradiation before charging.
摘要翻译：即使在增加处理速度或压实结构的情况下，电子照相工艺也具有改进的重影存储器和高充电性，并且电子照相工艺通过一系列步骤在具有感光层的感光构件上形成图像，包括电荷消除，充电，潜像曝光和显影以形成调色剂图像，其中在潜像曝光步骤中使用的光是在感光层的（光学存储器在充电之前）/（感光度）的值为不超过最小值的1.5倍。充电前的光学存储器意味着在充电之前由于光照射导致的充电性降低。

2. 发明授权

US06605405B2 Electrophotographic method and electrophotographic apparatus 失效
标题翻译：电子照相方法和电子照相设备
公开(公告)号：US06605405B2
公开(公告)日：2003-08-12
申请号：US09911611
申请日：2001-07-25
申请人： Hironori Owaki , Toshiyuki Ehara , Yuji Nakayama , Masaya Kawada , Takaaki Kaya , Tetsuya Karaki
发明人： Hironori Owaki , Toshiyuki Ehara , Yuji Nakayama , Masaya Kawada , Takaaki Kaya , Tetsuya Karaki
IPC分类号： G03G1302
CPC分类号： G03G13/04 , G03G5/08214 , G03G21/08
摘要： Provided are an electrophotographic method and an electrophotographic apparatus that can reduce ghost memory latent in an a-Si photosensitive member, relieve potential unevenness, and provide image copies with high quality. In an electrophotographic process of forming a toner image at least through decharging of a photosensitive member as a recording element, charging, exposing, developing, and transferring, at least a light-receiving layer of the photosensitive member is comprised of an amorphous material; a latent image is formed by the exposing with a light; the light has such a peak wavelength in an emission spectrum as to make minimum a value of optical memory at a unit contrast potential; and the decharging is implemented by use of a light having a full width at half maximum of a peak in an emission spectrum of not more than 50 nm.
摘要翻译：提供了一种电子照相方法和电子照相设备，其可以减少a-Si感光构件中潜在的重影记忆，减轻潜在的不均匀性，并提供高质量的图像拷贝。在至少通过对作为记录元件的感光构件进行充电的充电，曝光，显影和转印的至少形成调色剂图像的电子照相方法中，至少感光构件的光接收层由非晶材料构成; 通过用光曝光形成潜像; 光在发射光谱中具有这样的峰值波长，以使单位对比度电位下的光学存储器的值最小化; 通过使用不大于50nm的发射光谱中的峰的半峰全宽的光来进行放电。

3. 发明授权

US06226479B1 Electrophotographic photosensitive member and image forming apparatus 有权
标题翻译：电子照相感光构件和成像装置
公开(公告)号：US06226479B1
公开(公告)日：2001-05-01
申请号：US09391047
申请日：1999-09-16
申请人： Tetsuya Karaki , Yuji Nakayama , Masaya Kawada , Takaaki Kaya
发明人： Tetsuya Karaki , Yuji Nakayama , Masaya Kawada , Takaaki Kaya
IPC分类号： G03G1500
CPC分类号： G03G5/08221 , G03G5/02 , G03G5/10 , G03G5/14
摘要： An electrophotographic amorphous silicon photosensitive member is used for an electrophotographic apparatus that forms images by the electrophotographic method, and an image forming apparatus uses this photosensitive member, which includes a drum-shaped cylindrical conductive substrate, and a photosensitive layer that contains amorphous silicon, thus structuring an electrophotographic photosensitive drum. Then, the outer diameter of this photosensitive drum is configured to be gradually smaller from the vicinity of the central portion thereof in the generatrix direction to both ends in the longitudinal direction, hence making it possible to enhance the cleaning effect on residual toner.
摘要翻译：电子照相非晶硅感光构件用于通过电子照相方法形成图像的电子照相设备，并且图像形成装置使用该感光构件，其包括鼓形圆柱形导电衬底和包含非晶硅的感光层，因此构造电子照相感光鼓。然后，该感光鼓的外径被构造成从其母线方向的中心部分的附近到长度方向的两端逐渐变小，因此可以提高对残留调色剂的清洁效果。

4. 发明授权

US06233417B1 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US06233417B1
公开(公告)日：2001-05-15
申请号：US09349078
申请日：1999-07-08
申请人： Yuji Nakayama , Koji Yamazaki , Masaya Kawada , Takaaki Kaya , Hironori Owaki
发明人： Yuji Nakayama , Koji Yamazaki , Masaya Kawada , Takaaki Kaya , Hironori Owaki
IPC分类号： G03G1500
CPC分类号： G03G5/08221
摘要： An image forming apparatus which largely improves the reliability of electrophotographic apparatuses and can accommodate their extremely large productivity comprises an image forming part which forms toner images on an image carrying member, an image transfer part which transfers the toner images on the image carrying member onto a transfer material, and a cleaning part which removes post-transfer residual toner left on the image carrying member after the images are transferred onto the transfer material by the image transfer part, wherein the image carrying member is an amorphous silicon photosensitive member and an initial average gradient &Dgr;a of the photosensitive member is 0.0001 to 0.005.
摘要翻译：大大提高电子照相设备的可靠性并且可以适应其极大生产率的图像形成装置包括在图像承载部件上形成调色剂图像的图像形成部件，将图像承载部件上的调色剂图像转印到图像传送部件上的图像转印部件转印材料和清洁部件，其在通过图像转印部件将图像转印到转印材料上之后，去除留在图像承载部件上的转印后残留调色剂，其中图像承载部件是非晶硅感光部件，初始平均值感光构件的梯度DELTAa为0.0001〜0.005。

5. 发明授权

US6110629A Electrophotographic, photosensitive member and image forming apparatus 有权
标题翻译：电子照相，感光元件和成像设备
公开(公告)号：US6110629A
公开(公告)日：2000-08-29
申请号：US310987
申请日：1999-05-13
申请人： Toshiyuki Ehara , Yuji Nakayama , Tetsuya Karaki , Hironori Owaki
发明人： Toshiyuki Ehara , Yuji Nakayama , Tetsuya Karaki , Hironori Owaki
IPC分类号： G03G5/082 , G03G5/10 , G03G15/00
CPC分类号： G03G15/751 , G03G5/08221 , G03G5/08278 , G03G5/10 , G03G5/102 , G03G5/104
摘要： A cylindrical, photosensitive member is disclosed which has a photosensitive layer comprising amorphous silicon provided on an electroconductive substrate, and in which the thickness of the electroconductive substrate is not less than 0.1 mm but less than 2.5 mm, thereby accomplishing cost reduction of the photosensitive member and also accomplishing prevention of variations of image density and image smearing by high-accuracy temperature control.
摘要翻译：公开了一种圆柱形感光构件，其具有设置在导电衬底上的包含非晶硅的感光层，并且其中导电衬底的厚度不小于0.1mm但小于2.5mm，从而实现感光构件的成本降低并且还通过高精度温度控制来实现防止图像浓度和图像污染的变化。

6. 发明授权

US06330412B1 Electrophotographic apparatus 有权
标题翻译：电子照相设备
公开(公告)号：US06330412B1
公开(公告)日：2001-12-11
申请号：US09595975
申请日：2000-06-16
申请人： Koji Yamazaki , Yuji Nakayama , Masaya Kawada , Hironori Ohwaki
发明人： Koji Yamazaki , Yuji Nakayama , Masaya Kawada , Hironori Ohwaki
IPC分类号： G03G1500
CPC分类号： H04N1/0614 , H04N1/0607
摘要： The present invention relates to an electrophotographic apparatus in which maximum potential difference &Dgr;VD (volt) in a potential of a dark portion of the electrostatic image in the longitudinal direction, maximum potential difference &Dgr;VL in a potential of a light portion of the electrostatic image in the longitudinal direction, a value a (1/volt) represented by (variation amount in density, in the longitudinal direction, in the image formed by developing the light portion with the developing means)/(the maximum potential difference &Dgr;VD) and a value b (1/volt) represented by (variation amount in density, in the longitudinal direction, in the image formed by developing the light portion with the developing means)/(the maximum potential difference &Dgr;VL) satisfy a relation: 0.3≦a×&Dgr;VD+b×&Dgr;VL≦0.3 in which 100≧|&Dgr;VD|≧20 and 100≧|&Dgr;VL|≧20.
摘要翻译：本发明涉及一种电子照相设备，其中静电图像在纵向上的暗部的电位中的最大电位差DELTAVD（伏特），静电图像的光部分的电位中的最大电位差DELTAVL 纵向方向，由（通过用显影装置显影光部分形成的图像中的（密度变化量，在纵向上的变化量）/（最大电位差DELTAVD））表示的值a（1 /伏特）和值b （最大电位差DELTAVL）/（最大电位差DELTAVL）表示的（由密度的变化量，纵向的变化量，通过用显影装置显影的光部分形成的图像）表示的（1 /伏）满足关系：其中100> = | DELTAVD |> = 20和100> = | DELTAVL |> = 20。

7. 发明授权

US06556233B2 Electrophotographic apparatus and electrophotographic method featuring a photosensitive member having a linear EV characteristic 有权
标题翻译：电子照相设备和具有线性EV特性的光敏元件的电子照相方法
公开(公告)号：US06556233B2
公开(公告)日：2003-04-29
申请号：US09394049
申请日：1999-09-13
申请人： Toshiyuki Ehara , Yuji Nakayama , Masaya Kawada , Hironori Owaki
发明人： Toshiyuki Ehara , Yuji Nakayama , Masaya Kawada , Hironori Owaki
IPC分类号： B41J2700
CPC分类号： G02B26/124
摘要： An electrophotographic apparatus has a light scanning device for guiding a light beam onto a rotary polygon mirror and deflecting the light beam; and a recording medium which the light beam deflected by the light scanning device scans to form an image. The recording medium is an a-Si base photosensitive member. The electrophotographic apparatus satisfies a relation represented by Eq. (I) below; 3.0≧D/W≧1.5 (I) where D is a diameter of the light beam at a reflecting surface of the rotary polygon mirror and W is a width in a main scanning direction of a deflecting surface of the rotary polygon mirror.
摘要翻译：电子照相设备具有用于将光束引导到旋转多面镜并使光束偏转的光扫描装置; 以及由光扫描装置偏转的光束扫描以形成图像的记录介质。记录介质是a-Si基光敏元件。电子照相设备满足由等式（I）;其中D是旋转多面镜的反射面处的光束的直径，W是旋转多面镜的偏转面的主扫描方向的宽度。

8. 发明授权

US06169868A Electrophotographic apparatus 有权
公开(公告)号：US06169868A
公开(公告)日：2001-01-02
申请号：US09407992
申请日：1999-09-29
申请人： Koji Yamazaki , Yuji Nakayama , Masaya Kawada , Hironori Ohwaki
发明人： Koji Yamazaki , Yuji Nakayama , Masaya Kawada , Hironori Ohwaki
IPC分类号： G03G1500
CPC分类号： H04N1/0614 , H04N1/0607
摘要： The present invention relates to an electrophotographic apparatus in which maximum potential difference &Dgr;VD (volt) in a potential of a dark portion of the electrostatic image in the longitudinal direction, maximum potential difference &Dgr;VL in a potential of a light portion of the electrostatic image in the longitudinal direction, a value a (1/volt) represented by (variation amount in density, in the longitudinal direction, in the image formed by developing the light portion with the developing means)/(the maximum potential difference &Dgr;VD) and a value b (1/volt) represented by (variation amount in density, in the longitudinal direction, in the image formed by developing the light portion with the developing means)/(the maximum potential difference &Dgr;VL) satisfy a relation: 0.3≦a×&Dgr;VD+b×&Dgr;VL≦0.3 in which 100≧|&Dgr;VD|≧20 and 100≧|&Dgr;VL|≧20.

9. 发明授权

US6122467A Image forming apparatus using an amorphous silicon photosensitive member having a thin cylinder 有权
标题翻译：使用具有薄圆筒的非晶硅感光构件的图像形成装置
公开(公告)号：US6122467A
公开(公告)日：2000-09-19
申请号：US310986
申请日：1999-05-13
申请人： Toshiyuki Ehara , Yuji Nakayama , Masaya Kawada , Hironori Owaki
发明人： Toshiyuki Ehara , Yuji Nakayama , Masaya Kawada , Hironori Owaki
IPC分类号： G03G5/082 , G03G5/10 , G03G15/00
CPC分类号： G03G15/751 , G03G5/08221 , G03G5/08278 , G03G5/10 , G03G5/102 , G03G5/104
摘要： In order to reduce the cost of a photosensitive member and to prevent the fluctuation in image density and the image smear by highly precise temperature control, the image forming apparatus of the present invention includes: a cylindrical photosensitive member with a conductive substrate having a thickness not smaller than 0.1 mm and smaller than 2.5 mm, and a light-receiving layer having a photoconductive layer on the conductive substrate, the light-receiving layer containing at least amorphous silicon; and a charging device for charging the photosensitive member, wherein the photoconductive layer has a thickness not smaller than 5 .mu.m and smaller than 20 .mu.m, and wherein the charging device is a device for contacting a charging member with the surface of the photosensitive member and applying a voltage to the charging member to charge the photosensitive member.
摘要翻译：为了降低光敏元件的成本并且通过高精度的温度控制来防止图像浓度和图像玷污的波动，本发明的图像形成装置包括：具有不厚度的导电基底的圆柱形感光元件小于0.1mm且小于2.5mm的光接收层和在导电基板上具有光电导层的光接收层，所述光接收层至少含有非晶硅; 以及用于对感光构件充电的充电装置，其中光电导层具有不小于5微米且小于20微米的厚度，并且其中充电装置是用于使充电构件与感光构件的表面接触的装置以及向所述充电部件施加电压以对所述感光部件充电。

10. 发明授权

US07254364B2 Cleaning blade for an image forming apparatus featuring a supporting portion and a cleaning portion having specified hardness and friction properties for the portions 有权
标题翻译：用于图像形成装置的清洁刀片，具有支撑部分和具有特定硬度和摩擦特性的清洁部分
公开(公告)号：US07254364B2
公开(公告)日：2007-08-07
申请号：US10851182
申请日：2004-05-24
申请人： Yuji Nakayama
发明人： Yuji Nakayama
IPC分类号： G03G21/00
CPC分类号： G03G21/0017
摘要： An image forming apparatus includes an image bearing member on which a toner image is formed and a blade retained so as to be capable of coming into contact with and separating from the image bearing member and adapted, when in contact with the image bearing member, to remove residual toner remaining on the image bearing member after image transfer, the blade being brought into contact with or separated from the image bearing member during movement of the image bearing member, wherein the blade includes an edge portion to be brought into contact with the image bearing member and a support portion causing the edge portion to come into contact with the image bearing member, and wherein the hardness of the edge portion is higher than the hardness of the support portion, the hardness of the edge portion being not less than 75 degrees but not more than 100 degrees (JIS-A), the hardness of the support portion being not less than 60 degrees but not more than 85 degrees (JIS-A).
摘要翻译：图像形成装置包括：图像承载部件，其上形成有调色剂图像;刀片被保持成能够与图像承载部件接触并与图像承载部件分离;并且当与图像承载部件接触时，在图像转印之后，除去残留在图像承载部件上的剩余调色剂，在图像承载部件移动期间，刀片与图像承载部件接触或分离，其中刀片包括与图像接触的边缘部分支承部件和使边缘部分与图像承载部件接触的支撑部分，并且其中边缘部分的硬度高于支撑部分的硬度，边缘部分的硬度不小于75度但不超过100度（JIS-A），支撑部的硬度不小于60度但不大于85度（JIS-A）。

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