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    • 2. 发明授权
    • Image forming apparatus and process cartridge
    • 成像设备和处理盒
    • US06175703B1
    • 2001-01-16
    • US09425734
    • 1999-10-22
    • Yusuke NakazonoJunichi KatoKoichi SuwaSatoru InamiMasahiro YoshidaAtsutoshi AndoSatoshi SunaharaSeiichi Shinohara
    • Yusuke NakazonoJunichi KatoKoichi SuwaSatoru InamiMasahiro YoshidaAtsutoshi AndoSatoshi SunaharaSeiichi Shinohara
    • G03G2116
    • G03G9/0819G03G9/09708G03G9/09716G03G9/09725G03G9/09733G03G13/09G03G13/22G03G2215/021G03G2221/183
    • 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.
    • 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%。
    • 4. 发明授权
    • Image forming apparatus and process cartridge
    • 成像设备和处理盒
    • US06169869A
    • 2001-01-02
    • US09492335
    • 2000-01-27
    • Satoru InamiJunichi KatoMasahiro YoshidaYusuke NakazonoSeiichi Shinohara
    • Satoru InamiJunichi KatoMasahiro YoshidaYusuke NakazonoSeiichi Shinohara
    • G03G1522
    • G03G13/09G03G5/0564G03G9/097G03G13/22G03G2221/183
    • 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.
    • 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。
    • 9. 发明授权
    • Image forming apparatus and image forming method
    • 图像形成装置及图像形成方法
    • US06873350B2
    • 2005-03-29
    • US09887119
    • 2001-06-25
    • Masanobu SaitoSatoru InamiSeiichi ShinoharaTakayuki Namiki
    • Masanobu SaitoSatoru InamiSeiichi ShinoharaTakayuki Namiki
    • B41J2/44G02B26/10G06K15/12H04N1/113H04N1/23B41J2/435
    • G06K15/1219
    • 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.
    • 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。