公开(公告)号：US07060406B2

公开(公告)日：2006-06-13

申请号：US10427901

申请日：2003-05-02

申请人： Kunimasa Kawamura ,  Shigenori Ueda ,  Toshiyuki Ehara ,  Junichiro Hashizume ,  Ryuji Okamura ,  Masaya Kawada ,  Tetsuya Karaki ,  Hironori Ohwaki

发明人： Kunimasa Kawamura ,  Shigenori Ueda ,  Toshiyuki Ehara ,  Junichiro Hashizume ,  Ryuji Okamura ,  Masaya Kawada ,  Tetsuya Karaki ,  Hironori Ohwaki

IPC分类号： G03G5/82 ,  G03G13/08

CPC分类号： G03G5/10 ,  G03G5/08221 ,  G03G5/14 ,  G03G5/147 ,  G03G5/14704

摘要： A light-receiving member comprising a conductive substrate, and formed superposingly thereon a photosensitive layer and a surface protective layer in order. The light-receiving member has a surface roughness Ra of from 15 nm to 100 nm. Also disclosed is an image-forming apparatus having such a light-receiving member, and an image-forming method of rendering visible an electrostatic pattern formed on the light-receiving member. The light-receiving member promises stable formation of images over a long period of time.

公开(公告)号：US06586149B2

公开(公告)日：2003-07-01

申请号：US09808959

申请日：2001-03-16

申请人： Kunimasa Kawamura ,  Shigenori Ueda ,  Toshiyuki Ehara ,  Junichiro Hashizume ,  Ryuji Okamura ,  Masaya Kawada ,  Tetsuya Karaki ,  Hironori Ohwaki

发明人： Kunimasa Kawamura ,  Shigenori Ueda ,  Toshiyuki Ehara ,  Junichiro Hashizume ,  Ryuji Okamura ,  Masaya Kawada ,  Tetsuya Karaki ,  Hironori Ohwaki

IPC分类号： G03G514

CPC分类号： G03G5/10 ,  G03G5/08221 ,  G03G5/14 ,  G03G5/147 ,  G03G5/14704

摘要： A light-receiving member comprising a conductive substrate, and formed superposingly thereon a photosensitive layer and a surface protective layer in order. The light-receiving member has a surface roughness Ra of from 15 nm to 100 nm. Also disclosed is an image-forming apparatus having such a light-receiving member, and an image-forming method of rendering visible an electrostatic pattern formed on the light-receiving member. The light-receiving member promises stable formation of images over a long period of time.

摘要翻译： 一种光接收元件，包括导电基底，并且依次叠加形成感光层和表面保护层。 光接收部件的表面粗糙度Ra为15nm〜100nm。 还公开了一种具有这种光接收元件的图像形成设备，以及使在光接收元件上形成的静电图案可见的图像形成方法。 光接收部件能够长时间稳定地形成图像。

公开(公告)号：US06846600B2

公开(公告)日：2005-01-25

申请号：US10059139

申请日：2002-01-31

申请人： Toshiyuki Ehara ,  Junichiro Hashizume ,  Masaya Kawada ,  Tetsuya Karaki ,  Hironori Ohwaki ,  Kunimasa Kawamura ,  Ryuji Okamura ,  Kazuto Hosoi

发明人： Toshiyuki Ehara ,  Junichiro Hashizume ,  Masaya Kawada ,  Tetsuya Karaki ,  Hironori Ohwaki ,  Kunimasa Kawamura ,  Ryuji Okamura ,  Kazuto Hosoi

IPC分类号： G03G5/08 ,  G03G5/082 ,  G03G5/147 ,  H01L21/311

CPC分类号： G03G5/08221 ,  G03G5/08 ,  G03G5/08214 ,  G03G5/08235 ,  G03G5/08285 ,  G03G5/14704

摘要： A process for producing an electrophotographic photosensitive member comprising the steps of depositing a non-single crystal material composed basically of silicon atoms, on a cylindrical substrate in a deposition chamber, thereafter once taking the substrate with film out of the deposition chamber, then returning it to the deposition chamber, and thereafter again depositing thereon a non-single-crystal material composed basically of carbon atoms. In another embodiment, the process comprises the steps of depositing on a cylindrical substrate a photoconductive layer formed of a non-single crystal material, subjecting to surface processing the deposited film having protrusions present at its surface, and depositing on the processed surface a surface protective layer formed of a non-single-crystal material. Also disclosed is the electrophotographic photosensitive member thus obtained, and an electrophotographic apparatus having that member.

摘要翻译： 一种用于制造电子照相感光构件的方法，包括以下步骤：将沉积室中的基本上由硅原子组成的非单晶材料沉积在圆柱形衬底上，然后一次将基片用薄膜从沉积室中取出，然后返回 然后再沉积到基本上由碳原子组成的非单晶材料上。 在另一个实施方案中，该方法包括以下步骤：在圆柱形基材上沉积由非单晶材料形成的光电导层，对其表面具有突起的沉积膜进行表面处理，并在处理表面上沉积表面 由非单晶材料形成的保护层。 还公开了如此获得的电子照相感光构件和具有该构件的电子照相设备。

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：US06531253B2

公开(公告)日：2003-03-11

申请号：US09819759

申请日：2001-03-29

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

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

IPC分类号： G03G508

CPC分类号： G03G5/14704 ,  G03G5/0525 ,  G03G5/08214 ,  G03G5/08221

摘要： An a-Si photosensitive member and an image forming apparatus are provided which prevent fusion bonding in digital copying machines and attain satisfactory image formation. Specifically, in order that even when uneven abrasion occurs on a drum surface layer, it may not substantially affect the image, a photosensitive member formed by successively stacking on a conductive substrate a photoconductive layer comprising amorphous Si and a surface protective layer comprised of an amorphous material is provided such that the spectral reflectance (%) satisfies the relation of 0≦(Max−Min)/(Max+Min)≦0.20, and a center line average roughness Ra1 of the interface on the surface side of the photoconductive layer and the center line average roughness Ra2 of the outermost surface of the surface layer, within the range of 10 &mgr;m×10 &mgr;m, satisfy the relations of Ra1/Ra2≧1.3 and 22 nm≦Ra1≦100 nm.

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：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：US06529223B2

公开(公告)日：2003-03-04

申请号：US09866788

申请日：2001-05-30

申请人： Hironori Ohwaki ,  Toshiyuki Ehara ,  Masaya Kawada

发明人： Hironori Ohwaki ,  Toshiyuki Ehara ,  Masaya Kawada

IPC分类号： G03G1500

CPC分类号： H04N1/29 ,  G06K15/1209

摘要： An object of the present invention is to provide an image forming apparatus that has an image bearing body, charging device for charging the image bearing body, and exposing device for exposing the image bearing body charged by the charging device, wherein the exposing device illuminates a light beam for each of pixels corresponding to a non-imaged portion of a pixel matrix having plural rows and plural columns, and wherein, when it is assumed that a width of one pixel in the pixel matrix is A and a distribution width in a half value of a maximum potential value of potential distribution formed in OFF of light beam illumination of one pixel is Wv, a following relationship is satisfied: 0.6≦Wv/A≦1.4.

摘要翻译： 本发明的目的是提供一种图像形成装置，其具有图像承载体，用于对图像承载体充电的充电装置和用于曝光由充电装置充电的图像承载体的曝光装置，其中，曝光装置照亮 对应于具有多行和多列的像素矩阵的未成像部分的每个像素的光束，并且其中，当假定像素矩阵中的一个像素的宽度为A，并且分布宽度为一半 在一个像素的光束照明的OFF处形成的电位分布的最大电位值的值为Wv，满足以下关系：

公开(公告)号：US06333755B1

公开(公告)日：2001-12-25

申请号：US09655343

申请日：2000-09-05

申请人： Toshiyuki Ehara ,  Masaya Kawada ,  Hironori Ohwaki

发明人： Toshiyuki Ehara ,  Masaya Kawada ,  Hironori Ohwaki

IPC分类号： B41J2385

CPC分类号： H04N1/29 ,  G03G15/04054 ,  G03G15/04072 ,  G03G15/0435 ,  G03G15/326

摘要： An electrophotographic apparatus includes a photosensitive body and electrostatic image forming device for forming an electrostatic image on the photosensitive body. The electrostatic image forming device includes an exposing device for exposing the photosensitive body by a digital light in accordance with image information. The exposing device exposes a portion that is a background for an image. A developing device develops the electrostatic image using a developer, wherein a rate throughout the developer of the contained particles have a diameter equal to or smaller than 1 &mgr;m is 5 to 40 number %, and wherein, when A denotes a one-pixel width and Wv denotes a width at half value of a peak in a potential distribution of the electrostatic image formed by exposing the photosensitive drum using the digital light of one pixel, 0.6≦Wv/A≦1.0 is satisfied.

摘要翻译： 电子照相设备包括用于在感光体上形成静电图像的感光体和静电图像形成装置。 静电图像形成装置包括用于根据图像信息通过数字光使感光体曝光的曝光装置。 曝光设备暴露作为图像背景的部分。 显影装置使用显影剂显影静电图像，其中所包含的颗粒的整个显影剂的直径等于或小于1um的直径为5至40个数，并且其中当A表示一个像素宽度和 Wv表示通过使用一个像素的数字光曝光感光鼓形成的静电图像的电位分布中的峰值的半值处的宽度，满足0.6 <= Wv / A <= 1.0。

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。