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。

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。

公开(公告)号：US06636715B2

公开(公告)日：2003-10-21

申请号：US09861579

申请日：2001-05-22

申请人： Kunimasa Kawamura ,  Koji Yamazaki ,  Toshiyuki Ehara ,  Masaya Kawada ,  Tetsuya Karaki ,  Hironori Owaki

发明人： Kunimasa Kawamura ,  Koji Yamazaki ,  Toshiyuki Ehara ,  Masaya Kawada ,  Tetsuya Karaki ,  Hironori Owaki

IPC分类号： G03G1502

CPC分类号： G03G5/08221 ,  G03G5/08214 ,  G03G5/08228 ,  G03G5/08235 ,  G03G5/0825 ,  G03G5/147 ,  G03G5/14704

摘要： To provide an amorphous Si photosensitive member and an image forming apparatus which form favorable images by preventing toner adhesion at a cleaning time. A photoconductive layer 102 containing amorphous Si is formed on an electrically conductive substrate 101 so that a surface of a photosensitive member has an average inclination &Dgr;a within a range of 0.12 to 1.0, more preferably 0.15 to 0.8 within a range of 10 &mgr;m×10 &mgr;m, and an electrically conductive substrate has surface roughness Ra within the range of 10 &mgr;m×10 &mgr;m is lower than 9 nm, preferably lower than 6 nm.

摘要翻译： 提供非晶硅感光构件和通过在清洁时间防止调色剂附着而形成有利图像的图像形成装置。 在导电基板101上形成含有非晶Si的光电导层102，使得感光部件的表面的平均倾斜度Δa在10mum×10 m的范围内在0.12〜1.0的范围内，更优选在0.15〜0.8的范围内， 导电性基板的表面粗糙度Ra在10mum×10um的范围内低于9nm，优选低于6nm。

公开(公告)号：US5983043A

公开(公告)日：1999-11-09

申请号：US218628

申请日：1998-12-22

申请人： Hironori Ohwaki ,  Koji Yamazaki ,  Toshiyuki Ehara ,  Masaya Kawada ,  Takaaki Kaya ,  Tetsuya Karaki

发明人： Hironori Ohwaki ,  Koji Yamazaki ,  Toshiyuki Ehara ,  Masaya Kawada ,  Takaaki Kaya ,  Tetsuya Karaki

IPC分类号： G01R29/12 ,  G03G15/00 ,  G03G21/00

CPC分类号： G03G15/5037 ,  G01R29/12

摘要： In a surface potential measuring apparatus for measuring a potential configuration by moving a photosensitive body of an image forming apparatus of electrophotographic type and at least one potential sensor relative to each other and by generating dielectric current in the potential sensor due to change in potential on a surface of the photosensitive body and by analyzing the dielectric current, a width of a detecting portion of the potential sensor is smaller than a width of the change in potential to be measured, and a sectional shape of the detecting portion in a plane perpendicular to the surface of the photosensitive body and parallel to the relative movement direction does not include any edge.

摘要翻译： 在表面电位测量装置中，用于通过使电子照相类型的图像形成装置的感光体和至少一个电位传感器相对于彼此移动并且通过在电位传感器中产生电介质电流来测量电位结构， 感光体的表面，并且通过分析电介质电流，电位传感器的检测部分的宽度小于待测电位变化的宽度，并且检测部分在垂直于感光体的平面中的截面形状 感光体的表面并且平行于相对运动方向不包括任何边缘。

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。

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。

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。

公开(公告)号：US06285385B1

公开(公告)日：2001-09-04

申请号：US09467980

申请日：1999-12-21

申请人： Hironori Owaki ,  Koji Yamazaki ,  Toshiyuki Ehara ,  Tetsuya Karaki ,  Kunimasa Kawamura

发明人： Hironori Owaki ,  Koji Yamazaki ,  Toshiyuki Ehara ,  Tetsuya Karaki ,  Kunimasa Kawamura

IPC分类号： G03G1500

CPC分类号： G03G15/5037 ,  G03G15/04045 ,  G03G15/326 ,  H04N1/295

摘要： In the electrophotographic method of the present invention employing a photosensitive member and forming an electrostatic latent image by a charging step and a light beam irradiating step, in order to improve the dot reproducibility in the output image to thereby obtain an image with excellent gradation property, the amount of potential attenuation in the depth direction at light beam irradiation for one pixel of the photosensitive member is set so as to be not less than 65% but less than 135% of the amount of potential attenuation in the depth direction at the continuous light beam irradiation.

摘要翻译： 在本发明的电子照相方法中，通过使用感光体并通过充电步骤和光束照射步骤形成静电潜像，为了提高输出图像中的点再现性，从而获得具有优异的灰度特性的图像， 感光构件的一个像素的光束照射下的深度方向上的深度方向上的潜在衰减量被设定为连续光的深度方向的电位衰减量的65％以上且小于135％ 光束照射。

公开(公告)号：US06534228B2

公开(公告)日：2003-03-18

申请号：US09859422

申请日：2001-05-18

申请人： Masaya Kawada ,  Toshiyuki Ehara ,  Tetsuya Karaki ,  Hironori Ohwaki ,  Kunimasa Kawamura

发明人： Masaya Kawada ,  Toshiyuki Ehara ,  Tetsuya Karaki ,  Hironori Ohwaki ,  Kunimasa Kawamura

IPC分类号： G03G5147

CPC分类号： G03G5/102 ,  G03G5/043 ,  G03G5/0503 ,  G03G5/0507 ,  G03G5/0525 ,  G03G5/08214 ,  G03G5/10 ,  G03G5/147

摘要： To provide a Si photosensitive member and an image forming apparatus which prevents toner adherence at the time of cleaning and forms an excellent image, an electrophotographic photosensitive member comprising a photoconductive layer including amorphous Si and a surface protective layer which are formed on an electroconductive substrate has a difference in the height of concave and convex corresponding to 90% and 50% of a cumulative frequency of the height of concave and convex with respect to the most deepest point of surface roughness concave and convex within a range of 10 &mgr;m×10 &mgr;m of the photosensitive member as a standard which is set within a range of 3 nm to 200 nm.

公开(公告)号：US5732313A

公开(公告)日：1998-03-24

申请号：US681954

申请日：1996-07-30

申请人： Masaya Kawada ,  Toshiyuki Ehara ,  Tetsuya Karaki

发明人： Masaya Kawada ,  Toshiyuki Ehara ,  Tetsuya Karaki

IPC分类号： G03G15/02

CPC分类号： G03G15/0241 ,  G03G2215/022 ,  Y10S430/102

摘要： The present invention provides a charge apparatus comprising a charge member to which voltage is applied for charging a member to be charged, the charge member having a bearing member for bearing a magnetic particle layer contacted with the member to be charged. The bearing member includes therein a plurality of magnetic poles disposed in a circumferential direction thereof, and the magnetic poles are arranged in a spiral fashion.

摘要翻译： 本发明提供了一种充电装置，其包括充电构件，向所述充电构件施加电压以对要充电的构件进行充电，所述充电构件具有用于承载与待充电构件接触的磁性颗粒层的支承构件。 轴承构件包括设置在其圆周方向上的多个磁极，并且磁极以螺旋方式布置。