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    • 4. 发明授权
    • Electrophotographic photoreceptor and image forming device
    • 电子照相感光体和成像装置
    • US06858368B2
    • 2005-02-22
    • US10249102
    • 2003-03-17
    • Jun AzumaYukimasa WatanabeAyako Yashima
    • Jun AzumaYukimasa WatanabeAyako Yashima
    • G03G5/06G03G13/20
    • G03G5/0679G03G5/0609G03G5/0668G03G5/0677G03G5/0696
    • An image forming device is disclosed which comprises an electrophotographic photoreceptor and a flash fixing means. The photoreceptor has a photoconductive layer formed on top of a support substrate, and the photoconductive layer contains a charge generating agent and a charge transport agent therein. The half maximum wavelength region of the charge transport agent's absorption peak is in a visual region that includes the wavelength region of the flash light when its intensity is 50% or greater of its maximum but does not include the wavelength region of the exposure light. This photoreceptor will not produce electrostatic irregularities even if light from the flash fixing means leaks thereon, and its sensitivity and its ability to be electrostatically charged will not decrease even if repeatedly used.
    • 公开了一种图像形成装置,其包括电子照相感光体和闪光固定装置。 感光体具有形成在支撑基板的顶部上的光电导层,光电导层中含有电荷产生剂和电荷输送剂。 电荷输送剂的吸收峰的最大半波长区域在其强度为其最大值的50%以上但不包括曝光光的波长区域的情况下,包含闪光的波长区域的视觉区域。 即使来自闪光固定装置的光在其上泄漏,该感光体也不会产生静电不规则,并且即使重复使用,其感光度和静电电荷的能力也不会降低。
    • 5. 发明授权
    • Image forming apparatus
    • 图像形成装置
    • US06879794B2
    • 2005-04-12
    • US10074021
    • 2002-02-14
    • Jun AzumaAyako YashimaYukimasa WatanabeKeisuke ObaMasashi FujishimaTakashi Nagashima
    • Jun AzumaAyako YashimaYukimasa WatanabeKeisuke ObaMasashi FujishimaTakashi Nagashima
    • G03G5/05G03G21/00G03G15/00
    • G03G21/0011G03G5/0564G03G5/0578
    • Disclosed are image forming apparatus [1] which comprises removing a toner remained on the surface of the rotatable image carrier by cleaning means after going through developing means and transferring means; said cleaning means has an elastic blade and is contacted with the surface of the image carrier at a contact pressure within 8 to 20 g/cm, and a press-contact angle of the elastic blade of 12 to 30°; and said image carrier is an organic photosensitive material having a photosensitive layer made of a binder resin containing an electric charge generating material and an electric charge transferring material; and image forming apparatus [2], comprising a single-layer type photosensitive layer made of a binder resin containing an electric charge generating material, an electron transferring material and a hole transferring material, and the solid content of the binder resin is within 50 to 70 wt % of the whole solid content in the photosensitive layer and, a pair of paper transporting rollers are arranged on a path for transporting a transfer paper from paper feeding portion to transferring means, and a paper transporting roller at the side of the surface to be transferred among a pair of paper transporting rollers has cleaning means at the side of the surface to be transferred from the roller.
    • 公开了一种图像形成装置[1],其包括在经过显影装置和转印装置之后通过清洁装置去除可旋转图像载体的表面上残留的调色剂; 所述清洁装置具有弹性叶片,并且以8至20g / cm 2的接触压力和12至30°的弹性片的压接面角度与图像载体的表面接触; 并且所述图像载体是具有由含有电荷产生材料和电荷转移材料的粘合剂树脂制成的感光层的有机感光材料; 和图像形成装置[2],包括由包含电荷产生材料的粘合剂树脂,电子转移材料和空穴转移材料制成的单层型感光层,并且粘合剂树脂的固体含量在50〜 感光层中的全部固体成分的70重量%,以及一对纸张传送辊布置在用于将转印纸从供纸部分传送到传送装置的路径上,以及在表面侧的纸张传送辊 在一对纸张传送辊之间传送具有在要从辊传送的表面侧面的清洁装置。
    • 6. 发明授权
    • Electrophotosensitive material
    • 电光敏材料
    • US07090952B2
    • 2006-08-15
    • US10705457
    • 2003-11-12
    • Jun AzumaYukimasa WatanabeAyako Yashima
    • Jun AzumaYukimasa WatanabeAyako Yashima
    • G03G5/00
    • G03G5/05
    • The present invention provides an electrophotosensitive material comprising a conductive substrate and a photosensitive layer provided on the conductive substrate, wherein the photosensitive layer contains a polyarylate having a repeating unit represented by the general formula (1): wherein X represents a phenylene group, a naphthylene group, or a biphenylene group, as a binder resin. The polyarylate is contained in the amount of 30% by weight or more based on the entire binder resin. The electrophotosensitive material of the present invention have improved wear resistance and gas resistance while reconciling both characteristics, and thus longer life has been achieved.
    • 本发明提供了一种电光敏材料,其包括导电基材和设置在导电基材上的感光层,其中感光层含有具有由通式(1)表示的重复单元的多芳基化合物:其中X表示亚苯基,亚萘基 基团或亚联苯基作为粘合剂树脂。 基于整个粘合剂树脂,聚芳酯的含量为30重量%以上。 本发明的电光敏材料具有改善的耐磨性和耐气体性,同时兼顾两种特性,从而实现了更长的使用寿命。
    • 8. 发明授权
    • Electrophotosensitive material
    • 电光敏材料
    • US07101647B2
    • 2006-09-05
    • US10667905
    • 2003-09-23
    • Jun AzumaKazunari HamasakiDaisuke KuboshimaHisakazu Honma
    • Jun AzumaKazunari HamasakiDaisuke KuboshimaHisakazu Honma
    • G03G5/06
    • G03G5/0679G03G5/0675G03G5/0677G03G5/0696
    • The present invention provides an electrophotosensitive material which realizes uniform dispersion of phthalocyanines in a photosensitive layer and has high sensitivity to a digital light source, and also excellent in charge stability under the high temperature atmosphere, weatherability and NOx resistance. The electrophotosensitive material is produced by forming a single-layer type or multi-layer type photosensitive layer containing phthalocyanine as an electric charge generating material, an electric charge transferring material, a predetermined insoluble azo pigment and a predetermined binder resin on a conductive substrate and using, as the insoluble azo pigment, an insoluble azo pigment having no OH group in the molecule wherein (i) an absorbance in an absorption wavelength range of phthalocyanine is ⅓ or less of an absorbance of the phthalocyanine in the wavelength range, or (ii) an absorbance in a wavelength range of an exposure light source of an image forming apparatus is ⅓ or less of an absorbance of the phthalocyanine in the wavelength range.
    • 本发明提供了一种电光敏材料,其实现了酞菁在感光层中的均匀分散,并且对数字光源具有高灵敏度,并且在高温气氛,耐气候性和耐NOx性下也具有优异的电荷稳定性。 通过在导电性基板上形成含有酞菁作为电荷产生材料,电荷转移材料,预定的不溶性偶氮颜料和预定粘合剂树脂的单层型或多层型感光层,并使用 作为不溶性偶氮颜料,在分子中不具有OH基的不溶性偶氮颜料,其中(i)酞菁的吸收波长范围内的吸光度为酞菁的波长范围的吸光度的1/3以下,或( ii)图像形成装置的曝光光源的波长范围内的吸光度为酞菁在波长范围内的吸光度的1/3以下。