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    • 1. 发明授权
    • Image forming method and apparatus having a semiconductive intermediate
transfer member
    • 具有半导体中间转印构件的图像形成方法和装置
    • US5729799A
    • 1998-03-17
    • US730760
    • 1996-10-15
    • Kazunori NumaoNoriaki KojimaMasao OkuboNobukazu Takahashi
    • Kazunori NumaoNoriaki KojimaMasao OkuboNobukazu Takahashi
    • G03G15/00G03G15/16G03G21/06G03G21/08G03G21/10G03G21/00
    • G03G21/06
    • An image forming apparatus of such a type as is provided with a photosensitive member having a semi-conductive intermediate transfer member disposed opposite the photosensitive member. A charger electrically charges the photosensitive member. An exposure device forms an electrostatic latent image on the photosensitive member and developer visualizes the electrostatic latent image using toner identical in polarity to the photosensitive member. A primary transfer device transfers the toner image to the intermediate transfer member by applying a bias opposite in polarity to the photosensitive member, and a secondary transfer apparatus transfers the toner image on the intermediate transfer member to a transfer material. An optical charge-eliminator optically removes the electrical charge from the photosensitive member. A contact charge-eliminator is provided between the optical charge-eliminator and the primary transfer device so as to completely eliminate the electric charge injected into the photosensitive member at the time of the primary transfer.
    • 这种类型的图像形成装置设置有具有与感光构件相对设置的半导体中间转印构件的感光构件。 充电器使感光元件充电。 曝光装置在感光构件上形成静电潜像,并且显影剂使用与感光构件极性相同的调色剂使静电潜像显现。 一次转印装置通过施加与感光构件极性相反的偏压将调色剂图像转印到中间转印部件,二次转印装置将中间转印部件上的调色剂图像转印到转印材料上。 光学电荷消除器从光敏元件光学去除电荷。 在光学电荷消除器和一次转印装置之间提供接触电荷消除器,以便完全消除在一次转印时注入到感光构件中的电荷。
    • 2. 发明授权
    • Image forming apparatus having a transfer member positional downstream
of a nip portion
    • 图像形成装置具有位于压区部分下游的转印部件
    • US5778291A
    • 1998-07-07
    • US716567
    • 1996-09-19
    • Masao OkuboNoriaki KojimaNobukazu Takahashi
    • Masao OkuboNoriaki KojimaNobukazu Takahashi
    • G03G15/00G03G15/01G03G15/16
    • G03G15/0131G03G15/162G03G2215/0119G03G2215/0174
    • An image forming apparatus includes: a latent image carrier 1 to form a latent image in accordance with an image signal; a developing unit 14 to develop the latent image with a predetermined toner; an intermediate transfer body 2 coming into contact with the latent image carrier 1 so that the intermediate transfer body can be rotated together with the latent image carrier, the intermediate transfer body being capable of transferring a toner image formed on the latent image carrier 1; a transfer roller 4 to simultaneously transfer the toner image held on the intermediate transfer body 2 onto a recording medium 11; and a transfer roller 3 arranged in the downstream close to a contact region (nip portion) of the latent image carrier 1 with the intermediate transfer body 2, the transfer roller 3 being arranged on a side of the intermediate transfer body 2 reverse to a toner image holding surface so as to transfer the toner image on the intermediate transfer body 2 by forming a transfer electric field between the latent image carrier 1 and the intermediate transfer body 2 when a voltage, the polarity of which is opposite to the electrical charging polarity of the toner image, is impressed.
    • 图像形成装置包括:潜像载体1,用于根据图像信号形成潜像; 用预定调色剂显影潜像的显影单元14; 中间转印体2与潜像载体1接触,使得中间转印体可与潜像载体一起旋转,中间转印体能够转印形成在潜像载体1上的调色剂图像; 转印辊4,同时将保持在中间转印体2上的调色剂图像转印到记录介质11上; 以及转印辊3,其设置在靠近潜像载体1的接触区域(夹持部分)的中间转印体2的下游,转印辊3布置在中间转印体2的与调色剂相反的一侧 图像保持表面,以便当其潜在电压与潜像载体1和中间转印体2的极性相反的电压时,通过在潜像载体1和中间转印体2之间形成转印电场,将调色剂图像转印到中间转印体2上 墨粉图像,印象深刻。
    • 4. 发明授权
    • Sample separator having impedance interface detector
    • 具有阻抗接口检测器的样品分离器
    • US5415784A
    • 1995-05-16
    • US54845
    • 1993-04-29
    • Masaki AkutsuNobukazu Takahashi
    • Masaki AkutsuNobukazu Takahashi
    • G01F23/26G01F23/24G01N33/49G01N35/00G01N35/10B01D17/12
    • G01N35/1016G01N33/491G01N2035/00495G01N2035/1018
    • The sample separator including a first suction nozzle, serving also as an electrode, for extracting one of first and second components each having an impedance different from each other, a second suction nozzle, serving also as an electrode, for extracting the other component, a nozzle driving member for ascending/descending the nozzles as one unit, and an interface detecting member for detecting an interface between two components. The interface detecting member further including an impedance detector for detecting an impedance between the two nozzles serving also as the electrodes, a storing section for storing a first threshold value to detect the first component, and an operation control member for comparing the first threshold value stored in the storing member with a detected value obtained by the impedance detector, and for controlling the nozzle driving member based on a result of the comparison.
    • 所述样品分离器包括第一吸嘴,其也用作电极,用于提取彼此具有阻抗的第一和第二组分之一;还用作电极的用于提取另一组分的第二吸嘴, 喷嘴驱动构件,用于将喷嘴上升/下降为一个单元;以及接口检测构件,用于检测两个部件之间的界面。 所述接口检测部件还包括阻抗检测器,用于检测用作所述电极的两个喷嘴之间的阻抗;存储部,用于存储检测所述第一部件的第一阈值;以及操作控制部件,用于比较所存储的所述第一阈值 在存储构件中具有由阻抗检测器获得的检测值,并且用于基于比较的结果来控制喷嘴驱动构件。
    • 9. 发明申请
    • IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD
    • 图像处理装置和图像处理方法
    • US20110085208A1
    • 2011-04-14
    • US12895348
    • 2010-09-30
    • Nobukazu TakahashiYasunori Fujimoto
    • Nobukazu TakahashiYasunori Fujimoto
    • H04N1/409
    • H04N1/4092G06K15/02
    • If a non-edge part of an image is thinned at a constant thinning ratio regardless of an image size (a character size or a line image width), a reduction in image density in the non-edge part becomes more conspicuous with increasing image size, which can lead to a reduction in image quality. In view of the above, the thinning ratio at which to thin data in the non-edge part of the image is determined depending on the image size. The thinning ratio is set to be smaller for images with sizes greater than or equal to a predetermined value than for images with sizes smaller than the predetermined value such that a high-quality image with sufficiently high density in its non-edge part is obtained regardless of the image size.
    • 如果图像的非边缘部分以恒定的稀疏比稀疏,而与图像尺寸(字符尺寸或行图像宽度)无关,则非边缘部分的图像浓度的降低随着图像尺寸的增加而变得更加显着 ,这可能导致图像质量的降低。 鉴于上述,根据图像大小确定图像的非边缘部分中的薄数据的稀疏比。 对于尺寸大于或等于预定值的图像,对于具有小于预定值的图像的图像,稀疏比被设置为更小,使得获得其非边缘部分中具有足够高密度的高质量图像,而不管 的图像大小。