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    • 21. 发明授权
    • Multi-color image forming apparatus having high developability without
fogging and without mixing of colors
    • 具有高显影性且无雾化且不混色的多色成像装置
    • US5701553A
    • 1997-12-23
    • US506389
    • 1995-07-24
    • Isao EndoToru KomatsuYotaro SatoHiroyuki NomoriKunio ShigetaMasahiro Onodera
    • Isao EndoToru KomatsuYotaro SatoHiroyuki NomoriKunio ShigetaMasahiro Onodera
    • G03G15/08G03G15/09G03G15/06
    • G03G15/09G03G15/0803G03G2215/0621
    • A development apparatus for developing a latent image formed on an image forming body with a developer so as to obtain a toner image. A developer conveyance unit conveys the developer, including a toner, to a development zone, between the developer conveyance unit and the image forming body, from an upstream side of the development zone in a conveyance direction to a downstream side thereof. A plate member having an electrode portion is positioned at the upstream side of the development zone, wherein a downstream end portion of the plate member is positioned in contact with the development zone. A power supply unit applies a first voltage, including a DC component and an AC component, to the developer conveyance unit so that an electric field is generated at the development zone. The power supply unit applies a second voltage, including a DC component, to the electrode portion of the plate member, and the plate member controls the electric field with the second voltage. The development apparatus satisfies: V.sub.AC >.vertline.V.sub.DEN .vertline.-.vertline.V.sub.DC .vertline. when an amplitude of the AC component of the first voltage is defined as V.sub.AC (volts), the DC component of the first voltage is defined as V.sub.DC (volts), and the DC component of the second voltage is defined as V.sub.DEN (volts). The development apparatus satisfies: 10.multidot..vertline.Qt.vertline..multidot.d.sub.t .multidot.D.sub.1 >V.sub.AC >5.multidot..vertline.Qt.vertline..multidot.d.sub.t .multidot.D.sub.2 when a closest distance from the developer conveyance unit to the image forming body is defined as D.sub.1 (mm), a closest distance from the developer conveyance unit to the electrode portion is defined as D.sub.2 (mm), an average charge-to-mass of the toner is defined as Qt (.mu.C/g), and an average particle size of the toner is defined as dt (.mu.m).
    • 一种用显影剂显影形成在图像形成体上的潜像以获得调色剂图像的显影装置。 显影剂输送单元将显影剂(包括调色剂)从显影区域的输送方向的上游侧向下游侧输送到显影剂输送单元和图像形成体之间的显影区域。 具有电极部分的板状部件位于显影区域的上游侧,其中板状部件的下游端部与显影区域接触。 电源单元将包括DC分量和AC分量的第一电压施加到显影剂输送单元,使得在显影区域产生电场。 电源单元将包括DC分量的第二电压施加到板构件的电极部分,并且板构件以第二电压来控制电场。 显影装置满足:VAC> | VDEN | - | VDC | 当第一电压的AC分量的振幅被定义为VAC(伏特)时,第一电压的直流分量被定义为VDC(伏特),并且第二电压的直流分量被定义为VDEN(伏特)。 当从显影剂输送单元到图像形成体的最近距离定义为D1(mm)时,显影装置满足:10x | Qt | xdtxD1> VAC> 5x | Qt | xdtxD2,距离显影剂输送单元至 电极部分定义为D2(mm),将调色剂的平均电荷质量定义为Qt(μC/ g),将调色剂的平均粒径定义为dt(μm)。
    • 29. 发明授权
    • Multilayer photoreceptor
    • 多层感光体
    • US4859554A
    • 1989-08-22
    • US175583
    • 1988-03-28
    • Toshinori YamazakiEiichi SakaiTatsuo NakanishiHiroyuki Nomori
    • Toshinori YamazakiEiichi SakaiTatsuo NakanishiHiroyuki Nomori
    • G03G5/082
    • G03G5/08235
    • Disclosed is a photoreceptor which comprises a charge generation layer composed of at least one compound selected from the group consisting of amorphous hydrogenated silicon, amorphous fluorinated silicon and amorphous hydrofluorinated silicon, a charge transport layer formed on a lower surface of said charge generation layer and composed of at least one compound selected from the group consisting of amorphous hydrogenated silicon nitride, amorphous fluorinated silicon nitride, amorphous hydrofluorinated silicon nitride, amorphous hydrogenated silicon carbide, amorphous fluorinated silicon carbide and amorphous hydrofluorinated silicon carbide, and a substrate, wherein said charge transport layer contains oxygen within the range of from 50 atomic ppm to 5 atomic % based on the total atoms of silicon, nitrogen and carbon. The photoreceptor of this invention can be improved in the electrophotographic characteristics greatly with reduction of dependency on temperature by making the oxygen content in the charge transport layer 50 atomic ppm to 5 atomic %.
    • 公开了一种感光体,其包含由至少一种选自非晶氢化硅,无定形氟化硅和无定形氢氟硅的化合物组成的电荷产生层,形成在所述电荷产生层的下表面上的电荷输送层, 的非晶氢化氮化硅,无定形氟化氮化硅,无定形氢氟化氮化硅,无定形氢化碳化硅,无定形氟化碳化硅和无定形氢氟化碳化硅中的至少一种化合物和基板,其中所述电荷传输层 基于硅,氮和碳的总原子,氧含量在50原子%至5原子%的范围内。 通过使电荷输送层50中的氧含量为原子ppm为5原子%,本发明的感光体能够大大提高电子照相特性,同时降低对温度的依赖性。
    • 30. 发明授权
    • Amorphous silicon electrophotographic receptor having controlled carbon
and boron contents
    • 具有受控碳和硼含量的非晶硅电子照相受体
    • US4794064A
    • 1988-12-27
    • US11375
    • 1987-02-05
    • Toshinori YamazakiTatsuo NakanishiHiroyuki Nomori
    • Toshinori YamazakiTatsuo NakanishiHiroyuki Nomori
    • G03G5/082G03G5/085
    • G03G5/08235
    • An electrophotographic photoreceptor comprising a photosensitive layer comprisingat least one compound selected from the group consisting of hydrogenated amorphous silicon, fluorinated amorphous silicon,a surface modifying layer formed on the upper surface of said photosensitive layer comprising at least one compound selected from the group consisting of hydrogenated amorphous silicon carbide, fluorinated amorphous silicon carbide, hydrogenated and fluorinated amorphous silicon carbide, hydrogenated amorphous silicon nitride, fluorinated amorphous silicon nitride, and hydrogenated and fluorinated silicon nitride,a charge transport layer formed on the lower surface of said photosensitive layer comprising at least one compound selected from the group consisting of hydrogenated amorphous silicon carbide, fluorinated amorphous silicon carbide, and hydrogenated and fluorinated amorphous silicon carbide, the carbon content of said charge transport layer is within the range of 5 to 30 atomic % and said charge transport layer is doped with at least one element from group III of the periodic table,a charge blocking layer formed on the lower surface of said charge transport layer comprising at least one compound selected from the group consisting of hydrogenated amorphous silicon carbide, fluorinated amorphous silicon carbide, and hydrogenated and fluorinated amorphous silicon carbide, doped with larger amount of at least one element from group III of the periodic table than the amount of group III element dope in said charge transport layer, anda substrate.
    • 一种电子照相感光体,包括含有至少一种选自氢化非晶硅,氟化非晶硅的化合物的光敏层,在所述感光层的上表面上形成的表面改性层,所述表面改性层包含至少一种选自以下的化合物: 氢化非晶碳化硅,氟化非晶碳化硅,氢化和氟化非晶碳化硅,氢化非晶氮化硅,氟化非晶氮化硅和氢化和氟化氮化硅,形成在所述感光层的下表面上的电荷传输层,至少包括 选自氢化非晶碳化硅,氟化非晶碳化硅和氢化和氟化非晶碳化硅的一种化合物,所述电荷输送层的碳含量在5-30原子的范围内 ic%,并且所述电荷传输层掺杂有来自元素周期表的III族的至少一种元素,形成在所述电荷传输层的下表面上的电荷阻挡层包含至少一种选自氢化非晶硅 碳化物,氟化非晶碳化硅以及氢化和氟化的非晶碳化硅,以及基材中掺杂有更多量的元素周期表III族中的至少一种元素。