公开(公告)号：US06272301B1

公开(公告)日：2001-08-07

申请号：US09401772

申请日：1999-09-22

申请人： Masaya Kawada ,  Toshiyuki Ehara ,  Harumi Ishiyama

发明人： Masaya Kawada ,  Toshiyuki Ehara ,  Harumi Ishiyama

IPC分类号： G03G2100

CPC分类号： G03G21/0058 ,  G03G15/0233

摘要： An image forming apparatus includes an image bearing member for bearing an electrostatic image; a developing device for developing the electrostatic image on the image bearing member with toner into a toner image; a transfer device for transferring the toner image onto a transfer material; a charging and cleaning device for removing residual toner after image transfer from the image bearing member and for charging the image bearing member; wherein the charging and cleaning device includes a rotatable member which has an electroconductive foam for retaining electroconductive particles and which is rotatable while rubbing the image bearing member.

摘要翻译： 图像形成装置包括用于承载静电图像的图像承载部件; 用于将具有调色剂的图像承载部件上的静电图像显影成调色剂图像的显影装置; 用于将调色剂图像转印到转印材料上的转印装置; 充电和清洁装置，用于从图像承载部件图像转印后去除残留调色剂，并对图像承载部件充电; 其中所述充电和清洁装置包括可旋转构件，所述可旋转构件具有用于保持导电颗粒的导电泡沫体，并且可摩擦所述图像承载构件。

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：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：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：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：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：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：US5797072A

公开(公告)日：1998-08-18

申请号：US698798

申请日：1996-08-16

申请人： Toshiyuki Ehara ,  Masaya Kawada

发明人： Toshiyuki Ehara ,  Masaya Kawada

IPC分类号： G03G5/08 ,  G03G5/082 ,  G03G15/02

CPC分类号： G03G5/08221 ,  G03G15/0241 ,  G03G5/08214 ,  G03G2215/022

摘要： An image-forming apparatus is provided which has a photosensitive member having improved temperature characteristics and improved electric properties and an ozoneless charging system in combination, and employs neither a heater nor a cleaning roller. In the apparatus, a charging member having a cylindrical multipolar magnetic body of 500 G or stronger and a magnetic brush layer formed from a magnetic powder on the peripheral surface of the magnetic body is allowed to rub the surface of a charging object in a reverse direction at a movement speed ratio of not less than 110% to charge the charging object. The charging object is a photosensitive member having a photoconductive layer composed of non-single-crystal silicon. The photoconductive layer contains hydrogen at a content ranging from 10 to 30 atomic %, and Si--H.sub.2 /Si--H at a ratio ranging from 0.2 to 0.5, having density of state ranging from 1.times.10.sup.14 cm.sup.-3 to 1.times.10.sup.16 cm.sup.-3 and characteristic energy of the exponential tail ranging from 50 to 60 meV derived from subband-gap light absorption spectrum at a light-introducing portion, and having a surface resistivity ranging from 1.times.10.sup.10 to 5.times.10.sup.15 .OMEGA.cm. The magnetic powder has a resistivity ranging from 1.times.10.sup.4 to 1.times.10.sup.9 .OMEGA.cm, and particle diameters ranging from 10 to 50 .mu.m.

摘要翻译： 提供一种图像形成装置，其具有组合具有改善的温度特性和改善的电气性能的感光构件和无臭氧充电系统，既不使用加热器也不使用清洁辊。 在该装置中，允许具有500G或更大的圆柱形多极磁体的充电构件和在磁体的外周表面上由磁粉形成的磁刷层以相反方向摩擦充电对象的表面 以不小于110％的移动速度比对充电对象进行充电。 充电对象是具有由非单晶硅构成的光电导层的感光构件。 光电导层含有10〜30原子％含量的氢，Si-H2 / Si-H的比例范围为0.2〜0.5，状态范围为1×10 14 cm -3〜1×10 16 cm -3， 指数尾部的能量范围为50至60meV，衍生自光导入部分的子带隙光吸收光谱，表面电阻率范围为1×10 10至5×10 15欧姆·厘米。 磁粉的电阻率范围为1×10 4〜1×10 9欧米汞厘米，粒径为10〜50微米。

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。

公开(公告)号：US5561021A

公开(公告)日：1996-10-01

申请号：US361557

申请日：1994-12-22

申请人： Koji Yamazaki ,  Shigenori Ueda ,  Toshiyuki Ehara ,  Hiroaki Niino ,  Masaya Kawada

发明人： Koji Yamazaki ,  Shigenori Ueda ,  Toshiyuki Ehara ,  Hiroaki Niino ,  Masaya Kawada

IPC分类号： G03G21/10 ,  G03G5/08 ,  G03G5/082 ,  G03G5/147

CPC分类号： G03G5/0825 ,  G03G5/08221 ,  G03G5/08235 ,  G03G5/14704

摘要： An electrophotographic photosensitive member comprising a substrate, a light receiving layer having a photoconductive layer composed of a non-single crystal material containing silicon atoms as a matrix and having photoconductivity disposed on said substrate, and a surface protective layer disposed on said light receiving layer, characterized in that said surface protective layer comprises a metal oxide film formed by adjusting the surface of said light receiving layer to have a contact angle against water of 80.degree. or more, applying a sol liquid comprising an organometallic compound admixed with water, an alcohol and an acid onto the surface of said light receiving layer, and subjecting the resultant to heat treatment. An electrophotographic apparatus provided with said electrophotographic photosensitive member. A process for the production of said electrophotographic photosensitive member.

摘要翻译： 一种电子照相感光构件，包括基底，具有由含有硅原子作为基质并且具有设置在所述基底上的光电导性的非单晶材料构成的光电导层的光接收层和设置在所述光接收层上的表面保护层， 其特征在于，所述表面保护层包括金属氧化物膜，所述金属氧化物膜通过将所述光接收层的表面调节为具有80°或更高的水的接触角而形成，施加包含与水，醇的混合物的有机金属化合物的溶胶液体， 酸在所述光接收层的表面上，并对所得物进行热处理。 设置有所述电摄影感光构件的电子照相设备。 一种用于生产所述电子照相感光构件的方法。