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1. 发明授权

US5729800A Electrophotographic apparatus having an a-Si photosensitive drum assembled therein 失效
标题翻译：其中组装有a-Si感光鼓的电子照相设备
公开(公告)号：US5729800A
公开(公告)日：1998-03-17
申请号：US332481
申请日：1994-10-27
申请人： Tadashi Ohba , Norio Tomiie , Keiji Itsukushima , Hisashi Higuchi
发明人： Tadashi Ohba , Norio Tomiie , Keiji Itsukushima , Hisashi Higuchi
IPC分类号： G03G5/082 , G03G13/22 , G03G15/00 , G03G15/02
CPC分类号： G03G15/751 , G03G13/22 , G03G5/08235 , Y10S430/102
摘要： An electrophotographic apparatus using an a-Si photosensitive drum. The a-Si photosensitive drum has a thickness between 2 and 25 .mu.m. The initial charging potential on the photosensitive drum is set to 450V or below. The center exposure wavelength of an exposure means is set to 700 nm or above. The photosensitive drum includes a photoconductive layer formed as a thin film a-Si layer having a temperature characteristic of 1.0 V/.degree.C. or below. For realizing low charging potential and low electric field development, the thickness d of the photoconductive layer in the photosensitive drum is set to 2 to 24 .mu.m, the relative dielectric constant .epsilon.r is set to 2 or above, and the ratio d/.epsilon.r is set to 9 or below. The photosensitive drum is formed on a conductive support and has a three-layer structure, including a carrier charge blocking layer for blocking the introduction of carrier charge (of the opposite polarity to that of charging) from the conductive support into the photoconductive layer, a photoconductive layer and an insulating or high resistivity layer.
摘要翻译：使用a-Si感光鼓的电子照相设备。 a-Si感光鼓的厚度为2至25μm。感光鼓上的初始充电电位设定为450V以下。曝光装置的中心曝光波长设定为700nm以上。感光鼓包括形成为具有1.0V /℃以下的温度特性的薄膜a-Si层的光电导层。为了实现低充电电位和低电场发展，将感光鼓中的光电导层的厚度d设定为2〜24μm，相对介电常数εr设定为2以上，比率d /ε r设置为9或更低。感光鼓形成在导电支撑件上并且具有三层结构，包括用于阻止从导电支撑件引入到光电导层中的载流子电荷（与充电相反的极性）的载流子电荷阻挡层，光电导层和绝缘或高电阻率层。

2. 发明授权

US06029034A Image forming apparatus having an .alpha.-Si photosensitive drum and a non-magnetic uni-component toner 失效
标题翻译：具有α-Si感光鼓和非磁性单组分调色剂的图像形成装置
公开(公告)号：US06029034A
公开(公告)日：2000-02-22
申请号：US882741
申请日：1997-06-26
申请人： Keiji Itsukushima , Yoshio Ozawa , Yojiro Sato , Hisashi Mukataka
发明人： Keiji Itsukushima , Yoshio Ozawa , Yojiro Sato , Hisashi Mukataka
IPC分类号： G03G15/16 , G03G5/08 , G03G5/082 , G03G13/08 , G03G15/08 , G03G15/09 , G03G21/00 , G03G9/08 , G03G15/00
CPC分类号： G03G5/08214 , G03G13/08 , G03G15/0818 , G03G21/0064 , G03G5/08235 , G03G2221/0005 , G03G2221/0042
摘要： The invention seeks to provide an electrophotographic apparatus, which can have a simplified and safe construction in an image forming apparatus using an a-Si photo-sensitive drum and form clear images free from the flow of image or "fog". The image forming apparatus that is sought uses image development a non-magnetic uni-component toner prepared by a polymerization process as a preamble, and is characterized in that a developing roller is rotated in contact with an a-Si photo-sensitive drum via a layer of non-magnetic uni-component toner. The volume resistivity of the developing roller is set to 3.times.10.sup.7..OMEGA. cm or below. The photo-sensitive drum has a surface layer with an element ratio composition represented as (a-Si.sub.1-x C.sub.x :H), x being 0.95.ltoreq.x
摘要翻译：本发明寻求提供一种电子照相设备，其可以在使用a-Si感光鼓的图像形成设备中具有简化和安全的结构，并形成没有图像流或“雾”的清晰图像。所寻求的图像形成装置使用通过聚合方法制备的非磁性单组分调色剂作为前序，其特征在于，显影辊经由a-Si感光鼓经由非磁性单组分调色剂层。显影辊的体积电阻率设定为3×10 7。欧米茄厘米或以下。感光鼓具有由（a-Si1-xCx：H）表示的元素比组成的表面层，x为0.95

3. 发明授权

US5812160A Image forming apparatus with improved assemblies for tore carrier, toner passage control device and backing electrode 失效
标题翻译：图像形成装置，具有用于撕开载体，调色剂通道控制装置和背衬电极的改进的组件
公开(公告)号：US5812160A
公开(公告)日：1998-09-22
申请号：US734100
申请日：1996-10-21
申请人： Takasumi Wada , Masayuki Tone , Keiji Itsukushima , Hidemasa Aiba , Ove Larson
发明人： Takasumi Wada , Masayuki Tone , Keiji Itsukushima , Hidemasa Aiba , Ove Larson
IPC分类号： B41J2/415 , G03G15/34 , B41J2/06 , B41J25/308
CPC分类号： G03G15/346 , B41J2/4155 , G03G2217/0025
摘要： An apparatus for printing directly on plain paper, utilizing an arrayed control grid having a plurality of toner slots disposed in a space between a toner carrier and a backing electrode on which a paper travels. The backing electrode formed in a flat plate facing paralleledly to the control grid assures a uniform electrostatic field in an interspace therebetween. A unit body associated with the toner carrier and the control grid makes the interspace open when the unit body is removed from the apparatus body which offers an easy access to the interspace and the members as well. A resiliently suspended backing electrode with a spacer, a restriction member etc., assures the interspace constant. Other unit bodies including the control grid associated with the backing electrode and others are also disclosed.
摘要翻译：一种直接在普通纸上打印的装置，利用排列的控制栅格，其具有多个调色剂槽，该多个调色剂槽设置在调色剂载体和纸上行进的背衬电极之间的空间中。形成在与控制栅格并排的平板中的背衬电极确保了它们之间的间隙中的均匀的静电场。与调色剂载体和控制栅格相关联的单元主体当单元主体从设备主体移除时，使空隙打开，这提供了容易进入间隙和构件的功能。具有间隔件，限制构件等的弹性悬挂背衬电极确保空隙恒定。还公开了包括与背衬电极等相关联的控制栅格的其它单元体。

4. 发明授权

US5374949A Image forming apparatus 失效
标题翻译：图像形成装置
公开(公告)号：US5374949A
公开(公告)日：1994-12-20
申请号：US97323
申请日：1993-07-26
申请人： Takasumi Wada , Masayuki Tone , Hidemasa Aiba , Keiji Itsukushima , Ove Larson
发明人： Takasumi Wada , Masayuki Tone , Hidemasa Aiba , Keiji Itsukushima , Ove Larson
IPC分类号： B41J2/415 , G03G15/34 , G01D15/06
CPC分类号： B41J2/4155 , G03G15/346
摘要： An apparatus and method for printing directly on plain paper, utilizing an arrayed control grid having a plurality of toner slots. An alternating electrostatic field in a space between a toner carrier and a backing electrode gives toner a vibrational motion to prevent a toner clog at the slot. The field is also formed to repel the clogged toner back to the toner carrier, or to fall it down on a paper on the backing electrode during no print is performed to clean the control grid. A constitution of conductive and dielectric materials for the members assures to form the field.
摘要翻译：一种利用具有多个调色剂槽的排列控制栅格直接在普通纸上打印的设备和方法。在调色剂载体和背衬电极之间的空间中的交替静电场给调色剂提供振动，以防止调色剂堵塞槽。该场也被形成为在没有执行打印以清洁控制网格的同时将阻塞的调色剂排斥回到调色剂载体上，或者将其落在背衬电极上的纸上。用于构件的导电和介电材料的构造确保形成场。

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