Developing device
    11.
    发明授权
    Developing device 失效
    开发设备

    公开(公告)号:US5602630A

    公开(公告)日:1997-02-11

    申请号:US529092

    申请日:1995-09-15

    IPC分类号: G03G13/09 G03G15/09

    摘要: A non-contact type of developing device for use in an image forming apparatus having an image forming body, includes a developer conveying body facing the image forming body in which a magnet body having a plurality of magnet poles are attached therein, to convey two-component developer in the form of a developer layer onto a developing area and a control electrode provided at the developing area or upstream of the developing area. The control electrode has an electrically insulating member which is in contact with or close to the developing layer, and an electrode to which a voltage is applicable is attached to the insulating member. The following condition is satisfied: ##EQU1## where D.sub.T represents a number of toner layers on the assumption that the toner particles passing through the developing area are filled most densely, D.sub.WS represents a conveying amount (mg/cm.sup.2) of the developer layer at the developing area on the developer conveying body, T.sub.c represents a toner concentration (%) in the developer, dt represents an average sphere equivalent diameter (.mu.m) of toner in the developer, .rho.t represents a toner density (g/cm.sup.3) in the developer, vs represents a circumferential speed (mm/s) of the developer conveying body at the developing area, and vp represents a circumferential speed (mm/s) of the image forming body at the developing area.

    摘要翻译: 一种用于具有图像形成主体的图像形成装置中的非接触型显影装置,包括:面向图像形成主体的显影剂输送主体,其中附接有多个磁极的磁体, 显影剂层形式的显影剂组分显影剂和设置在显影区域的显影区域或显影区域上游的控制电极。 控制电极具有与显影层接触或靠近显影层的电绝缘构件,并且能够施加电压的电极附着到绝缘构件。 满足以下条件:其中DT代表通过显影区域的调色剂颗粒最密集地填充的调色剂层数,DWS表示显影剂层的输送量(mg / cm 2) 显影剂输送体上的显影区域,Tc表示显影剂中的调色剂浓度(%),dt表示显影剂中调色剂的平均球当量直径(μm),rho表示显影剂输送体中调色剂浓度(g / cm 3) 显影剂vs表示显影剂输送体在显影区域的圆周速度(mm / s),vp表示图像形成体在显影区域的圆周速度(mm / s)。

    Photoconductive screen
    12.
    发明授权
    Photoconductive screen 失效
    光导屏

    公开(公告)号:US4600292A

    公开(公告)日:1986-07-15

    申请号:US593638

    申请日:1984-03-26

    CPC分类号: G03G15/052 G03G5/14

    摘要: A photoconductive screen includes a conductive screen substrate with many perforations therein, an insulating layer formed substantially on one side of the screen substrate, a biasing conductive layer substantially covering the insulating layer, and a photoconductive layer substantially covering the conductive layer. An image of electrostatic charges can be formed on the screen to control a flow of charged particles for formation of an electrostatic latent image in a chargeable layer under exposure to the flow of charged particles.

    摘要翻译: 光电导屏幕包括其中具有许多穿孔的导电屏幕基底,基本上形成在屏幕基底的一侧上的绝缘层,基本上覆盖绝缘层的偏置导电层和基本上覆盖导电层的光电导层。 可以在屏幕上形成静电电荷的图像,以在暴露于带电粒子的流动下控制在带电层中形成静电潜像的带电粒子的流动。

    Electrophotographic photosensitive member
    13.
    发明授权
    Electrophotographic photosensitive member 失效
    电子照相感光构件

    公开(公告)号:US4540651A

    公开(公告)日:1985-09-10

    申请号:US549601

    申请日:1983-11-07

    IPC分类号: G03G5/06 G03G5/14

    摘要: There is disclosed an electrophotographic photosensitive member comprising a photosensitive layer comprising a combination of a carrier generating layer and a carrier transporting layer provided on an electroconductive support, the carrier generating layer containing a bisazo compound and the carrier transporting layer containing a styryl compound and/or an amine derivative, a hydrazone compound or a carbazole derivative.The electrophotographic photosensitive member according to the present invention has a high sensitivity and can form constantly good visible images.

    摘要翻译: 公开了一种电子照相感光构件,其包括感光层,该感光层包含载体产生层和设置在导电载体上的载流子传输层的组合,载体产生层含有双偶氮化合物和载体传输层,其含有苯乙烯基化合物和/或 胺衍生物,腙化合物或咔唑衍生物。 根据本发明的电子照相感光构件具有高灵敏度并且可以形成不断良好的可见图像。

    Photoreceptor for electrophotography, method of forming an electrostatic
latent image, and electrophotographic process
    14.
    发明授权
    Photoreceptor for electrophotography, method of forming an electrostatic latent image, and electrophotographic process 失效
    用于电子照相的感光体,形成静电潜像的方法和电子照相方法

    公开(公告)号:US4477549A

    公开(公告)日:1984-10-16

    申请号:US422728

    申请日:1982-09-24

    IPC分类号: G03G5/043 G03G5/082 G03G13/24

    CPC分类号: G03G5/0436 G03G5/08214

    摘要: A highly sensitive photoreceptor for electrophotography that forms a sharp image during repeated use is disclosed. It comprises an electrically conductive support having successively formed thereon a photoconductive photosensitive layer and a protective layer for that photosensitive layer, said photosensitive layer comprising an organic photoconductive material and said protective layer comprising an amorphous silicon carbide or amorphous silicon nitride containing a hydrogen atom and/or a fluorine atom. A method of forming a latent electrostatic image and an electrophotographic process using such photoreceptor are also disclosed.

    摘要翻译: 公开了在重复使用期间形成清晰图像的用于电子照相术的高灵敏度感光体。 它包括一个导电支撑件,其上依次形成有感光层和感光层的保护层,所述感光层包括有机光电导材料,所述保护层包括非晶碳化硅或包含氢原子和/ 或氟原子。 还公开了形成静电潜像的方法和使用这种感光体的电子照相方法。

    Multi-color image forming apparatus having high developability without
fogging and without mixing of colors
    16.
    发明授权
    Multi-color image forming apparatus having high developability without fogging and without mixing of colors 失效
    具有高显影性且无雾化且不混色的多色成像装置

    公开(公告)号:US5701553A

    公开(公告)日:1997-12-23

    申请号:US506389

    申请日:1995-07-24

    IPC分类号: G03G15/08 G03G15/09 G03G15/06

    摘要: 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).

    摘要翻译: 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)。

    Photoreceptor having photosensitive layer comprising a brominated
anthanthrone of specified x-ray spectrum
    18.
    发明授权
    Photoreceptor having photosensitive layer comprising a brominated anthanthrone of specified x-ray spectrum 失效
    具有感光层的感光体,其包含规定的x射线谱的溴化蒽醌

    公开(公告)号:US4835080A

    公开(公告)日:1989-05-30

    申请号:US59955

    申请日:1987-06-09

    IPC分类号: G03G5/06

    CPC分类号: G03G5/0609 G03G5/0664

    摘要: There is disclosed a photoreceptor which comprises a brominated anthanthrone pigment represented by the structural formula shown below: ##STR1## contained in the photosensitive layer, the brominated anthanthrone pigment exhibiting a X-ray diffraction spectrum having the respective diffraction strengths S (18.4.degree.) and S (26.7.degree.) at 2.theta.=18.4.degree. and 26.7.degree. which satisfy the relationship of0.2.ltoreq.S (18.4.degree.) / S (26.7.degree.).ltoreq.1.0;or exhibiting a X-ray diffraction spectrum having the respective half-value widths of diffraction strength of .DELTA..theta.(18.4.degree.) and .DELTA..theta.(26.7.degree.) at 2.theta.=18.4.degree.and 26.7.degree. which satisfy the relationship of{.DELTA..theta.(18.4.degree.).ltoreq.0.8.degree.} and/or{.DELTA..theta.(26.7.degree.).ltoreq.1.degree.}.

    摘要翻译: 公开了一种感光体,其包含由下述结构式表示的溴化蒽醌颜料:包含在感光层中的溴化蒽醌颜料,具有各衍射强度S(18.4°)的X射线衍射光谱和 在2θ= 18.4°和26.7°的S(26.7°)满足0.2≤S(18.4°)/ S(26.7°)= 1.0的关系; 或表现出在2θ= 18.4°和26.7°处具有相应的ΔTATA(18.4°)和DELTAθ(26.7°)的衍射强度的半值宽度的X射线衍射光谱,其满足{DELTAθ( 18.4°)

    Multi-layered electrophotographic photosensitive member having amorphous
silicon
    20.
    发明授权
    Multi-layered electrophotographic photosensitive member having amorphous silicon 失效
    具有非晶硅的多层电子照相感光构件

    公开(公告)号:US4677044A

    公开(公告)日:1987-06-30

    申请号:US730474

    申请日:1985-05-03

    IPC分类号: G03G5/082

    CPC分类号: G03G5/08235

    摘要: A photosensitive member wherein a charge transporting layer, a charge generating layer, and a surface modifying layer are laminated on a retainer. The charge transporting layer is prepared from one selected from a group of a-SiC:H, a-SiC:F, a-SiC:H:F, a-SiN:H, a-SiN:F, and a-SiN:H:F, the charge generating layer is prepared from one selected from a group of a-Si:H, a-Si:F and a-Si:H:F; and the surface modifying layer is prepared from one selected from a group of a-SiC:H, a-SiC:F, a-SiC:H:F, a-SiN:H, a-SiN:F and a-SiN:H:F. The surface modifying layer contains 1.about.50 atomic % of oxygen, 100 atomic % in total of Si, C (or N) and 0 atoms.

    摘要翻译: 其中电荷输送层,电荷产生层和表面改性层被层压在保持器上的感光构件。 电荷传输层由选自a-SiC:H,a-SiC:F,a-SiC:H:F,a-SiN:H,a-SiN:F和a-SiN: H:F,电荷产生层由选自a-Si:H,a-Si:F和a-Si:H:F的一种制备; 并且表面改性层由选自a-SiC:H,a-SiC:F,a-SiC:H:F,a-SiN:H,a-SiN:F和a-SiN: H:F。 表面改性层含有1%的氧原子%,Si,C(或N)和0原子总共为100原子%。