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    • 2. 发明授权
    • Electrophotographic sensitive member
    • US4826748A
    • 1989-05-02
    • US82971
    • 1987-08-04
    • Takao KawamuraYoshikazu Nakayama
    • Takao KawamuraYoshikazu Nakayama
    • G03G5/08G03G5/04G03G5/082G03G5/14G11B7/257
    • G03G5/08235G03G5/08221G03G5/0825G03G5/14G11B7/257G11B2007/25706G11B2007/25708G11B2007/2571G11B7/252G11B7/2532G11B7/2585Y10S430/146
    • The present invention relates to an electrophotographic sensitive member for use in a laser line printer.A laser line printer using a laser beam as a recording member has been known for a small-sized, light, low power consumption, high-density and high-speed recording method. For example, a semi-conductor laser printer and an electrophotographic sensitive member mainly formed of amorphous silicon used therein are being watched with interest.However, since this laser beam is monochromatic, a laser beam incident upon the inside of a photosensitive layer is very much inclined to be not sufficiently absorbed by the photosensitive layer to reach an electrically conductive substrate and be reflected at the surface of the electrically conductive substrate.With a photosensitive member having a photosensitive layer laminated on an electrically conductive substrate, there has been a problem in that a part of an incident ray such as a semiconductor laser ray is reflected by the electrically conductive substrate and if a part of this reflected ray is reflected by the surface of the photosensitive layer again, an interference occurs between this twice reflected ray and the incident ray to produce an interference fringe on a charge latent image whereby an interference fringe-like concentration unevenness on the image after developing.The present invention was achieved in order to eliminate the above described problem and it is an object of the present invention to provide an electrophotographic sensitive member, in which a photosensitive layer having at least a photoconductive layer is laminated on an electrically conductive substrate and a laser beam is incident upon a surface side of said photosensitive layer to generate an optical carrier in said photoconductive layer, characterized by that an interference of an laser beam can be reduced to prevent a stripped pattern from generating on an image by forming said photosensitive layer on said electrically conductive substrate through an intermediate layer and selecting a .times.b.sup.2 .times.c of 0.2 or less, wherein a is a transmission factor of said laser beam through said photosensitive layer, b being a transmission factor of said laser beam through said intermediate layer, and c being a reflection factor of said laser beam by said substrate.
    • 8. 发明授权
    • Device, method, program, and recording medium for error factor measurement, and output measurement device and input measurement device provided with the device for error factor measurement
    • 用于误差因子测量的装置,方法,程序和记录介质,以及用于误差因子测量的装置提供的输出测量装置和输入测量装置
    • US07761253B2
    • 2010-07-20
    • US11861453
    • 2007-09-26
    • Yoshikazu Nakayama
    • Yoshikazu Nakayama
    • G01D18/00G01R35/00
    • G01R35/00G01R23/16
    • Measurement of error factors of a signal source when a connection tool is connected to a signal source whether error factors of the connection tool are known or not is enabled. There is provided an error factor measurement device including a connection tool characteristic measurement unit which measures characteristics of a connection tool based on measurement results of first and second signals, a reflection-to-output ratio measurement unit which measures the ratio relating to a measurement result of a reflection in a second (first) signal generation unit and a measurement result before the first (second) signal is reflected by a first (second) output terminal, an error factor recording unit which records respective components Ei1 and Eo1 of an error factor caused by frequency tracking of a first signal generation unit, and a product of respective components Ei2·Eo2 of an error factor caused by frequency tracking of a second signal generation unit, and error factor deriving unit which derive respective components of the error factor caused by the frequency tracking of the second signal generation unit based on the measurement result of the characteristics of the connection tool, the measurement result of the reflection-to-output ratio measurement unit, and the recorded contents of the error factor recording unit.
    • 当连接工具连接到信号源时,测量连接工具的误差因素是否已知的信号源的误差因素被启用。 提供了一种误差因子测量装置,其包括基于第一和第二信号的测量结果来测量连接工具的特性的连接工具特性测量单元,测量与测量结果有关的比率的反射 - 输出比测量单元 在第二(第一)信号产生单元中的反射和第一(第二)信号之前的测量结果被第一(第二)输出端反射,误差因子记录单元记录误差因子的各个分量Ei1和Eo1 由第一信号生成单元的频率跟踪以及由第二信号生成单元的频率跟踪引起的误差因子的各个分量Ei2·Eo2的乘积以及导出的误差因子的各成分的误差因子导出单元 基于特征的测量结果的第二信号生成单元的频率跟踪 连接工具,反射 - 输出比测量单元的测量结果以及误差因子记录单元的记录内容。