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：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：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：US06764800B2

公开(公告)日：2004-07-20

申请号：US09842041

申请日：2001-04-26

申请人： Koji Yamazaki ,  Hiroyuki Kobayashi ,  Masaya Kawada ,  Tetsuya Karaki ,  Hironori Owaki

发明人： Koji Yamazaki ,  Hiroyuki Kobayashi ,  Masaya Kawada ,  Tetsuya Karaki ,  Hironori Owaki

IPC分类号： G03G1316

CPC分类号： G03G5/08221 ,  G03G5/08214 ,  G03G13/16 ,  G03G15/0131 ,  G03G2215/0119 ,  G03G2215/0174

摘要： In an electrophotographic image process, a latent image is formed on a photosensitive drum, and a toner image is formed on the latent image. The toner image is temporarily transferred onto an intermediate image-transfer element. The photosensitive drum and the intermediate image-transfer element are brought into contact at an intended contact pressure and are rotated at a prescribed relative speed. At the contact portion, fine vibrations of the photosensitive drum and the intermediate image-transfer element, which can be caused by repeated contact and separation are prevented by controlling the contact temperature between the photosensitive member and the intermediate image-transfer element to be in the range of 15 to 60° C. A kinetic frictional deviation (a standard deviation of a kinetic frictional force) is controlled to be less than the average value of the kinetic frictional force. By suppressing the fine vibration, deviation in image transfer is prevented. In addition, toner melt adhesion and foreign matter deposition is prevented, whereby image blurring is prevented.

摘要翻译： 在电子照相图像处理中，在感光鼓上形成潜像，并且在潜像上形成调色剂图像。 调色剂图像暂时转印到中间图像转印元件上。 感光鼓和中间图像转印元件以预期的接触压力接触并以规定的相对速度旋转。 在接触部分，通过将感光构件和中间图像转印元件之间的接触温度控制在该位置，可以防止由反复接触和分离引起的感光鼓和中间图像传送元件的微小振动 范围为15至60℃。动力摩擦偏差（动摩擦力的标准偏差）被控制为小于动摩擦力的平均值。 通过抑制细小振动，防止了图像转印的偏差。 此外，防止调色剂熔融粘附和异物沉积，从而防止图像模糊。

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：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。

公开(公告)号：US5689768A

公开(公告)日：1997-11-18

申请号：US568268

申请日：1995-12-06

申请人： Toshiyuki Ehara ,  Koji Yamazaki ,  Tetsuya Karaki

发明人： Toshiyuki Ehara ,  Koji Yamazaki ,  Tetsuya Karaki

IPC分类号： G03G9/08 ,  G03G5/00 ,  G03G21/00 ,  G03G21/10 ,  G03G21/14 ,  G03G21/20 ,  G03G5/08 ,  G03G15/00

CPC分类号： G03G21/203 ,  G03G21/105

摘要： An electrophotographing apparatus with a reusable toner system includes a photosensitive member capable of bearing toner thereon, a latent image forming unit for forming a latent image on the photosensitive member, a developing unit for developing the latent image with toner as a toner image, a transfer unit for transferring the toner image formed on the photosensitive member onto a transfer material at a transfer position, and a collection unit for collecting the toner from a surface of the photosensitive member after the surface passes through the transfer position. The collection unit includes a rotary member rotated while contacting the surface of the photosensitive member at a contact position. The rotary member is rotated in a direction opposite to a shifting direction of the photosensitive member at the contact position in such a manner that the relative speed of the rotary member with respect to the surface of the photosensitive member at the contact position becomes 110% or more of a shifting speed of the surface of the photosensitive member. The apparatus also includes a toner convey unit for conveying the toner collected by the collection unit to the developing unit so that the latent image formed on the photosensitive member can be developed by the toner collected by the collection unit.

摘要翻译： 具有可重复使用的调色剂系统的电子照相设备包括能够承载调色剂的感光部件，用于在感光部件上形成潜像的潜像形成单元，用调色剂图像使潜像显影的显影单元，转印 单元，用于将形成在感光构件上的调色剂图像转印到转印位置处的转印材料上;以及收集单元，用于在表面经过转印位置之后从感光构件的表面收集调色剂。 收集单元包括旋转构件，其在接触位置处接触感光构件的表面的同时旋转。 旋转构件在接触位置处以与感光构件的移动方向相反的方向旋转，使得旋转构件相对于感光构件在接触位置处的表面的相对速度变为110％或 更多的是感光构件的表面的移动速度。 该设备还包括调色剂输送单元，用于将由收集单元收集的调色剂输送到显影单元，使得通过由收集单元收集的调色剂可以使感光构件上形成的潜像显影。

公开(公告)号：US5480750A

公开(公告)日：1996-01-02

申请号：US209876

申请日：1994-03-14

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

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

IPC分类号： G03G5/08 ,  G03G5/082 ,  G03G13/22 ,  G03G15/00 ,  G03G15/02 ,  G03G21/00 ,  G03G13/045

CPC分类号： G03G5/08235 ,  G03G13/22 ,  G03G21/00 ,  G03G5/08221

摘要： There are provided an electrophotographic apparatus and an electrophotographic process featured by control satisfying a condition 1n(n).times.1n(S)/1n(E).ltoreq.19.0 among the localized energy level density n in the photoconductive layer of an amorphous silicon photosensitive member employed in the electrophotographic apparatus, the electric field E applied to the photosensitive member, and the surfacial moving speed S thereof. Such control reduces the photocarriers remaining in the photoconductive layer and inducing the photomemory effect, thereby suppressing the influence of a remaining latent image on the latent image generated in a next step, and providing an image of high quality without the photomemory effect, within resulting in a loss in the charging efficiency.

摘要翻译： 提供一种电子照相设备和电子照相方法，其特征在于满足条件1n（n）x1n（S）/ 1n（E） 19.0在非晶硅感光构件的光电导层中的局部能级密度n 在电子照相设备中使用的电场E和施加到感光构件的电场E及其表面移动速度S. 这样的控制减少光电导层中残留的光载流子并引起光记忆效应，从而抑制剩余潜像对下一步产生的潜像的影响，并提供高质量的图像而不产生光存储效应，导致 充电效率的损失。

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。

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.