Charging member, process cartridge, and image forming apparatus
    1.
    发明授权
    Charging member, process cartridge, and image forming apparatus 失效
    充电部件,处理盒和成像设备

    公开(公告)号:US06317574B1

    公开(公告)日:2001-11-13

    申请号:US09510341

    申请日:2000-02-22

    IPC分类号: G03G1502

    CPC分类号: G03G15/0233

    摘要: A charging member is disposed in contact with an electrophotographic photosensitive member and charges the surface of the electrophotographic photosensitive member electrostatically upon application of a voltage. The charging member has a conductive support, a base layer and a surface layer which are formed on the conductive support. The surface layer contains fluorine resin particles as a filler and a fluorine resin as a binder resin.

    摘要翻译: 充电构件设置成与电子照相感光构件接触,并且在施加电压时静电地对静电感光构件的表面充电。 充电构件具有形成在导电支撑件上的导电支撑件,基底层和表面层。 表面层含有作为填料的氟树脂颗粒和作为粘合剂树脂的氟树脂。

    Image forming apparatus and process cartridge
    2.
    发明授权
    Image forming apparatus and process cartridge 有权
    成像设备和处理盒

    公开(公告)号:US06175703B1

    公开(公告)日:2001-01-16

    申请号:US09425734

    申请日:1999-10-22

    IPC分类号: G03G2116

    摘要: An image forming apparatus having at least: an image carrying member for carrying an electrostatic latent image, the image carrying member having a photosensitive layer on a conductive substrate; a developer for developing the electrostatic latent image carrying member on the image carrying member; a developer carrying member for carrying the developer and conveying it to a development area; a control member making contact with the developer carrying member for controlling the coating amount of the developer; and a cleaning member for cleaning the surface of the photosensitive layer of the image carrying member by making contact with the surface of the image carrying member with a contact pressure of 0.15N (15 gf) to 0.89N (90 gf). The photosensitive layer contains at least one kind of polycarbonate resin (I) having a viscosity average molecular weight of 1.5×104 or less and at least one kind of polycarbonate resin (II) having a viscosity average molecular weight of more than 1.5×104, the polycarbonate resin (I) is contained in 30% by mass to 95% by mass based on the total content of the resins (I) and (II). The developer has a toner containing toner particles and external additives, and the toner contains (a) 0.1% by mass to 5.0% by mass of a first fine powder with a number average particle size of 0.005 &mgr;m to 3.00 &mgr;m, and (b) 0.02% by mass to 2.00% by mass of an inorganic second fine powder containing 25% by mass to 90% by mass of a lubricant, as external additives.

    摘要翻译: 一种图像形成装置,至少具有:用于承载静电潜像的图像承载部件,所述图像承载部件在导电基板上具有感光层; 用于在图像承载构件上显影静电潜像承载构件的显影剂; 用于承载显影剂并将其传送到显影区域的显影剂承载构件; 控制构件与显影剂承载构件接触以控制显影剂的涂布量; 以及清洁部件,通过以0.15N(15gf)至0.89N(90gf)的接触压力与图像承载部件的表面接触来清洁图像承载部件的感光层的表面。 感光层含有至少一种粘均分子量为1.5×10 4以下的聚碳酸酯树脂(I)和至少一种粘均分子量大于1.5×10 4的聚碳酸酯树脂(II),聚碳酸酯 相对于树脂(I)和(II)的总含量,树脂(I)的含量为30质量%〜95质量%。 显影剂具有含有调色剂颗粒和外部添加剂的调色剂,并且调色剂含有(a)数均粒径为0.005μm至3.00μm的第一细粉末的0.1质量%至5.0质量%,和(b) 作为外部添加剂,含有25质量%〜90质量%的润滑剂的无机第二细粉的0.02质量%〜2.00质量%。

    Image forming apparatus using a developer of a given polarity and an
externally added additive of an opposite polarity
    3.
    发明授权
    Image forming apparatus using a developer of a given polarity and an externally added additive of an opposite polarity 有权
    使用给定极性的显影剂和相反极性的外部附加添加剂的成像装置

    公开(公告)号:US6163663A

    公开(公告)日:2000-12-19

    申请号:US167735

    申请日:1998-10-07

    IPC分类号: G03G15/06 G03G15/09

    摘要: An image forming apparatus includes an image bearing member for bearing an electrostatic image; a developer carrying member for carrying a developer and for forming a developing zone with the image bearing member, wherein the developer is externally added with additive having a charging polarity opposite from that of the developer; a voltage applying device for applying a developing voltage to the developer carrying member; voltage a control device for controlling the developing voltage so as to change force for directing the additive toward a non-image portion of the image bearing member in accordance with a number of image forming operations.

    摘要翻译: 图像形成装置包括用于承载静电图像的图像承载部件; 用于承载显影剂并与图像承载部件形成显影区的显影剂承载构件,其中显影剂外部添加具有与显影剂相反的充电极性的添加剂; 用于向显影剂承载构件施加显影电压的电压施加装置; 电压控制显影电压的控制装置,以便根据成像操作的数量改变用于将添加剂引导到图像承载部件的非图像部分的力。

    Image forming apparatus and process cartridge
    4.
    发明授权
    Image forming apparatus and process cartridge 有权
    成像设备和处理盒

    公开(公告)号:US06169869A

    公开(公告)日:2001-01-02

    申请号:US09492335

    申请日:2000-01-27

    IPC分类号: G03G1522

    摘要: An image forming apparatus includes an image bearing member, a developer carrying member for carrying thereon a developer to transport the developer to a developing zone, and a regulation member provided in touch with the surface of the developer carrying member to regulate coat weight of the developer carried thereon. The image bearing member includes a conductive substrate and a photosensitive layer formed thereon, and the photosensitive layer contains at least one polycarbonate resin (I) having a viscosity-average molecular weight not more than 1.5×104 and at least one polycarbonate resin (II) having a viscosity-average molecular weight more than 1.5×104, the polycarbonate resin (I) being contained in a proportion of from 30% by weight to 95% by weight based on the total weight of the polycarbonate resins (I) and (II). On the developer carrying member, the developer is in a coat weight not more than 1.5 mg/cm2 at the developing zone after its regulation by the regulation member. This apparatus can prevent smeared images and enables stable and high-grade image formation.

    摘要翻译: 图像形成装置包括图像承载部件,用于承载显影剂以将显影剂输送到显影区域的显影剂承载部件和与显影剂承载部件的表面接触地设置的调节部件,以调节显影剂的涂层重量 在其上承载。 图像承载部件包括导电基材和形成在其上的感光层,感光层含有至少一种粘均分子量不大于1.5×10 4的聚碳酸酯树脂(I)和至少一种聚碳酸酯树脂(II),其具有 基于聚碳酸酯树脂(I)和(II)的总重量,粘均分子量大于1.5×10 4,聚碳酸酯树脂(I)的含量为30重量%至95重量%。 在显影剂承载构件上,显影剂在调节构件调节之后的显影区中的涂层重量不超过1.5mg / cm 2。 该装置可以防止模糊图像,并且能够进行稳定和高档次的图像形成。

    Agitating member, developing apparatus and process cartridge
    7.
    发明授权
    Agitating member, developing apparatus and process cartridge 有权
    搅拌部件,显影装置和处理盒

    公开(公告)号:US06337964B2

    公开(公告)日:2002-01-08

    申请号:US09498357

    申请日:2000-02-04

    IPC分类号: G03G1508

    摘要: An agitating member for agitating a developer includes a metal shaft, a plate member joined to the metal shaft, and a sheet member joined to the plate member, the sheet member being free to curve. A developing apparatus includes a developer bearing member bearing a developer thereon, a developer container containing the developer therein, and the above-described agitating member provided in the developer container for agitating the developer and supplying it to the developer bearing member. A process cartridge detachably attachable to the main body of an image forming apparatus, includes an electrophotographic photosensitive member and the above-described developing apparatus.

    摘要翻译: 用于搅拌显影剂的搅拌构件包括金属轴,连接到金属轴的板构件和连接到板构件的片构件,片构件自由弯曲。 显影装置包括在其上承载有显影剂的显影剂承载部件,其中含有显影剂的显影剂容器和设置在显影剂容器中的上述搅拌部件,用于搅拌显影剂并将其供给到显影剂承载部件。 可拆卸地附接到图像形成装置的主体的处理盒包括电子照相感光构件和上述显影装置。

    Image forming apparatus and image forming method
    9.
    发明授权
    Image forming apparatus and image forming method 失效
    图像形成装置及图像形成方法

    公开(公告)号:US06873350B2

    公开(公告)日:2005-03-29

    申请号:US09887119

    申请日:2001-06-25

    CPC分类号: G06K15/1219

    摘要: There is provided an image forming apparatus such as a latent image forming apparatus, in which the density of a half tone is stable independent on a write position of a main scanning line, even if a plurality of semiconductor lasers are used. The image forming apparatus has a latent image forming unit for pulse-width-modulating a drive signal of the semiconductor laser in response to the write position of image data. The latent image forming unit has an image sorting circuit for sorting the image data into an odd line and an even line, a memory for storing a turning on position, a pulse generating position control circuit for generating a pulse generating position signal, a PWM circuit for generating a triangular wave in accordance with the pulse generating position signal, and a beam-A-circuit and a beam-B-circuit, which control beams from the semiconductor laser.

    摘要翻译: 提供了一种诸如潜像形成装置的图像形成装置,其中半色调的浓度独立于主扫描线的写入位置是稳定的,即使使用多个半导体激光器。 图像形成装置具有潜像形成单元,用于响应于图像数据的写入位置对半导体激光器的驱动信号进行脉宽调制。 潜像形成单元具有用于将图像数据分类为奇数行和偶数行的图像分类电路,用于存储接通位置的存储器,用于产生脉冲产生位置信号的脉冲产生位置控制电路,PWM电路 用于根据脉冲产生位置信号产生三角波,以及控制来自半导体激光器的光束的光束A电路和光束B电路。

    Image forming apparatus and method
    10.
    发明授权
    Image forming apparatus and method 有权
    图像形成装置及方法

    公开(公告)号:US06636251B2

    公开(公告)日:2003-10-21

    申请号:US10157976

    申请日:2002-05-31

    IPC分类号: G03G1504

    CPC分类号: G06K15/1223 H04N1/40031

    摘要: An image forming and apparatus is provided in which a halftone density of an image is stabilized irrespective of a timing at which writing on scanning lines is started, even when using multiple laser beams. First, it is determined whether or not a portion exposed by adjacent laser beams (i.e., exposed by both of two beams simultaneously) is present. If the result of the determination is affirmative, it is then determined whether or not a portion adjacent to the exposed portion and not exposed by a laser beam is present. If the result of this determination is affirmative, exposure by fine dots is added to the portion not exposed by a laser beam.

    摘要翻译: 即使使用多个激光束,也设置图像形成和装置,其中图像的半色调浓度稳定,而与扫描线上写入的时间无关。 首先,确定是否存在由相邻激光束曝光的部分(即,由两个光束同时曝光)。 如果确定的结果是肯定的,则确定是否存在与暴露部分相邻并且不被激光束曝光的部分。 如果该确定的结果是肯定的,则通过细小点的曝光被添加到未被激光束曝光的部分。