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    • 23. 发明授权
    • Image sharpness detecting system
    • 图像清晰度检测系统
    • US4377742A
    • 1983-03-22
    • US151703
    • 1980-05-20
    • Takashi KawabataKazuya HosoeNobuhiko ShinodaShinji SakaiTakao Kinoshita
    • Takashi KawabataKazuya HosoeNobuhiko ShinodaShinji SakaiTakao Kinoshita
    • G02B7/28G03B3/00G01J1/36
    • G02B7/28G03B3/00
    • Disclosed is an image sharpness detecting system in which an image formed by an image forming optical system is received by an array of a plurality of optical-electronic transducer elements, and an illumination difference in each individual minute compartment of the above-described image is detected on the basis of the concurrently obtained output signal from a corresponding one of the optical-electronic transducer elements, while all the illumination differences are summed up over the entire area of a sensing region of the above-described image, whereby is obtained a signal representing the degree of sharpness of the image on the above-described array of optical-electronic transducer elements. In this system, the signal representative of the illumination difference in each individual minute compartment of the above-described image is at least non-linearly transformed by utilizing the non-linear characteristics for output versus input of a semiconductor element such as a transistor, and the signal representative of the degree of sharpness of the above-described image is obtained on the basis of the non-linearly transformed signal.
    • 公开了一种图像清晰度检测系统,其中通过多个光电子换能器元件的阵列接收由图像形成光学系统形成的图像,并且检测到上述图像的每个单独的分隔室中的照明差异 基于来自相应的一个光电换能器元件的同时获得的输出信号,同时在上述图像的感测区域的整个区域上将所有的照明差值相加,从而获得表示 上述光电换能器阵列阵列上的图像的清晰度。 在该系统中,通过利用诸如晶体管的半导体元件的输出与输入的非线性特性,表示上述图像的每个单独分隔室中的照明差异的信号至少被非线性变换,以及 基于非线性变换信号获得表示上述图像的清晰度的信号。
    • 25. 发明申请
    • IMAGE FORMING APPARATUS
    • 图像形成装置
    • US20100247168A1
    • 2010-09-30
    • US12538543
    • 2009-08-10
    • Nobuo HyakutakeTaku FukuharaMasaaki TakahashiTakashi Kawabata
    • Nobuo HyakutakeTaku FukuharaMasaaki TakahashiTakashi Kawabata
    • G03G15/01
    • G03G15/161G03G15/0131G03G15/1615G03G2215/00156
    • An image forming apparatus includes: an image carrier having an endless circumferential surface on which a latent image is formed due to an electrostatic potential difference; a developing device that attaches a toner to the image carrier to form a toner image; an endless intermediate transfer belt that is entrained around a plurality of roll members and moves circumferentially, and contacts the image carrier to transfer the toner image to the intermediate transfer belt; a transferring device that further transfers the toner image that has been transferred to the intermediate transfer belt, to a recording sheet; and a load applying member that cooperates with one of the roll members placed inside the intermediate transfer belt, to nip the intermediate transfer belt to apply a load to the intermediate transfer belt, the load applying member contacting a non-image region of the intermediate transfer belt.
    • 图像形成装置包括:具有环形圆周表面的图像载体,由于静电电位差而形成有潜像; 显影装置,其将调色剂附着到图像载体上以形成调色剂图像; 围绕多个辊构件夹带并沿周向运动并与图像载体接触以将调色剂图像转印到中间转印带的环形中间转印带; 进一步将已经转印到中间转印带上的调色剂图像转印到记录纸上的转印装置; 以及负载施加构件,其与设置在所述中间转印带内的所述辊构件中的一个配合,以夹持所述中间转印带以向所述中间转印带施加负载,所述负载施加构件接触所述中间转印的非图像区域 带。