公开(公告)号：US07282529B2

公开(公告)日：2007-10-16

申请号：US10625570

申请日：2003-07-24

申请人： Nozomu Tamoto ,  Tetsuro Suzuki ,  Hiroshi Tamura ,  Tatsuya Niimi ,  Akihiko Matsuyama ,  Eiji Kurimoto ,  Hidetoshi Kami

发明人： Nozomu Tamoto ,  Tetsuro Suzuki ,  Hiroshi Tamura ,  Tatsuya Niimi ,  Akihiko Matsuyama ,  Eiji Kurimoto ,  Hidetoshi Kami

IPC分类号： C08K5/09

CPC分类号： G03G5/0514 ,  G03G5/0507 ,  G03G5/051 ,  G03G5/14704 ,  G03G5/14708 ,  Y10S430/103

摘要： An electrophotographic photoreceptor including an electroconductive substrate, a photosensitive layer located overlying the electroconductive substrate, and optionally a protective layer overlying the photosensitive layer, wherein an outermost layer of the photoreceptor includes a filler, a binder resin and an organic compound having an acid value of from 10 to 700 mgKOH/g. The photosensitive layer can be the outermost layer. A coating liquid for an outermost layer of a photoreceptor including a filler, a binder resin, an organic compound having an acid value of from 10 to 700 mgKOH/g and plural organic solvents. A method for preparing a photoreceptor including forming a photosensitive layer, and coating the coating liquid on the photosensitive layer. An image forming method and apparatus and a process cartridge using the photoreceptor are also provided.

摘要翻译： 包括导电基片的电子照相感光体，位于导电基底上的感光层，以及任选地覆盖感光层的保护层，其中感光体的最外层包括填料，粘合剂树脂和酸值为 10至700mgKOH / g。 感光层可以是最外层。 包含填充剂，粘合剂树脂，酸值为10〜700mgKOH / g的有机化合物和多种有机溶剂的感光体的最外层的涂布液。 一种制备感光体的方法，包括形成感光层，并将涂布液涂覆在感光层上。 还提供了一种图像形成方法和装置以及使用感光体的处理盒。

公开(公告)号：US20070172752A1

公开(公告)日：2007-07-26

申请号：US11625873

申请日：2007-01-23

申请人： Tatsuya NIIMI

发明人： Tatsuya NIIMI

IPC分类号： G03G15/14

CPC分类号： G03G5/144 ,  G03G5/142 ,  G03G2215/00957

摘要： An image forming apparatus including a photoreceptor including a substrate, and an intermediate layer, a charge generation layer, and a charge transport layer on the substrate in this order; a charger charging the photoreceptor; an irradiator irradiating the photoreceptor to form an electrostatic latent image thereon; an image developer developing the electrostatic latent image with a toner to form a toner image on the photoreceptor; a transferer transferring the toner image onto a recording medium; a fixer fixing the toner image on the recording medium; and a discharger removing a residual potential from the photoreceptor with light, wherein the intermediate layer includes a metal oxide, the charge generation layer comprises an organic charge generation material, and the irradiator irradiates the photoreceptor with writing light having a wavelength shorter than 450 nm, which is not absorbed in the metal oxide in the intermediate layer.

摘要翻译： 一种图像形成装置，其包括在基板上依次包括基底的感光体和中间层，电荷产生层和电荷输送层; 充电器充电感光器; 照射器，照射感光体以在其上形成静电潜像; 图像显影剂，用调色剂显影静电潜像，以在感光体上形成调色剂图像; 转印器将调色剂图像转印到记录介质上; 定影剂，将调色剂图像固定在记录介质上; 以及放电器，用光去除感光体的残留电位，其中中间层包括金属氧化物，电荷产生层包括有机电荷产生材料，并且照射器用波长短于450nm的写入光照射感光体， 其不被中间层中的金属氧化物吸收。

公开(公告)号：US07194224B2

公开(公告)日：2007-03-20

申请号：US10927050

申请日：2004-08-27

申请人： Tatsuya Niimi ,  Masami Kadonaga

发明人： Tatsuya Niimi ,  Masami Kadonaga

IPC分类号： G03G21/16

CPC分类号： G03G15/0266 ,  G03G2215/02

摘要： The present invention relates to an image forming apparatus, an image forming process and a process cartridge, in which the image quality and the durability of the photoconductor may be enhanced, images may be formed stably even after the repeated usages, and higher quality and higher stability of images may be established due to the superimposed alternating voltage as well as decrease of the charging hazard on the photoconductor. Specifically, the image forming apparatus according to the present invention comprises a photoconductor, latent electrostatic image forming unit, developing unit a transferring unit, and fixing unit, wherein the charging member is of roller shape disposed proximate to the photoconductor, the photoconductor is charged at the charging nip portion formed between the photoconductor and the charging member, in a condition that satisfies the following Equation: 4.4×1014≦[(Number of Charged Particles)÷(Circumferential length of the photoconductor)]≦17.7×1014 wherein the “Number of Charged Particles” refers to the number of charged particles accepted by the photoconductor surface per its unit surface area from the operated charging member, while the photoconductor rotates one round, thus the unit is [number/m2]; and the unit of “Circumferential length of the photoconductor” is [mm].

摘要翻译： 本发明涉及图像形成装置，图像形成处理和处理盒，其中可以增强感光体的图像质量和耐久性，即使在重复使用之后也可以稳定地形成图像，并且更高的质量和更高 可能由于叠加的交流电压以及光电导体上的充电危害的降低而建立图像的稳定性。 具体而言，根据本发明的图像形成装置包括感光体，静电潜像形成单元，显影单元，转印单元和定影单元，其中充电构件是靠近感光体设置的辊状，光电导体被充电在 在满足以下等式的条件下，在光电导体和充电部件之间形成的充电压合部分：<？in-line-formula description =“In-line formula”end =“lead”？> 4.4×10 14 <= [（带电粒子数）/（感光体的周长）] <= 17.7×10 14 <？in-line-formula description =“In-line Formulas”end =“尾”？>其中“带电粒子数”是指由感光体表面接受的带电粒子数目，与感光体旋转一圈，单位为[数量 / m 2]; “感光体的周长”的单位为[mm]。

公开(公告)号：US20060292480A1

公开(公告)日：2006-12-28

申请号：US11474258

申请日：2006-06-26

申请人： Tatsuya Niimi

发明人： Tatsuya Niimi

IPC分类号： G03G15/20

CPC分类号： G03G5/0679 ,  G03G5/0605 ,  G03G5/0607 ,  G03G5/0614 ,  G03G5/0629 ,  G03G5/071 ,  G03G5/073 ,  G03G5/14734 ,  G03G5/14739

摘要： An image forming apparatus, including an electrostatic latent image bearer bearing an electrostatic latent image; an electrostatic latent image former forming the electrostatic latent image on a surface of the latent image bearer; an image developer developing the electrostatic latent image with a developer including a toner to form a toner image on the surface of the image bearer; a transferer transferring the toner image onto a receiving material; a fixer fixing the toner image to the receiving material; and a discharger discharging charges remaining on the image bearer by irradiating the image bearer with discharging light having a wavelength of less than 500 nm, wherein the latent image bearer includes a substrate; and a photosensitive layer overlying the substrate, including a charge generation layer containing an organic charge generation material, and a charge transport layer containing at least one of charge transport materials having the formulae (I) to (IV).

摘要翻译： 一种图像形成装置，包括承载静电潜像的静电潜像载体; 在所述潜像承载体的表面上形成所述静电潜像的静电潜像形成体; 图像显影剂，用包含调色剂的显影剂显影静电潜像，以在图像承载体的表面上形成调色剂图像; 转印器将调色剂图像转印到接收材料上; 将调色剂图像固定到接收材料的定影剂; 以及放电器，通过用波长小于500nm的放电光照射图像载体来放电剩余在图像载体上的电荷，其中潜像载体包括基板; 以及覆盖基板的感光层，包括含有有机电荷产生材料的电荷产生层，以及含有至少一种具有式（I）至（IV）的电荷输送材料的电荷输送层。

公开(公告)号：US20060105255A1

公开(公告)日：2006-05-18

申请号：US11264102

申请日：2005-11-02

申请人： Naohiro Toda ,  Tatsuya Niimi

发明人： Naohiro Toda ,  Tatsuya Niimi

IPC分类号： G03G5/047 ,  C09B67/04

CPC分类号： G03G5/0696 ,  G03G2215/00957

摘要： An electrophotographic image forming apparatus comprising: an electrophotographic photoreceptor comprising: an electroconductive substrate; a charge generation layer; and a charge transport layer in this order, a charger; an irradiator; an image developer; and a transferer applying an electric current not less than 65 μA to the electrophotographic photoreceptor, wherein the charge generation layer comprises titanylphthalocyanine crystals having a CuKα 1.542 Å X-ray diffraction spectrum having plural diffraction peaks, wherein a maximum diffraction peak is observed at a Bragg (2θ) angle of 27.2°; main peaks are observed at 9.4°, 9.6° and 24.0°; and a minimum diffraction peak is observed at 7.3°; and no diffraction peak is observed at an angle greater than 7.3° and less than 9.4°, wherein said angles may vary by ±0.2° and the minimum interval where no peak is observed between required peaks at 7.3 and 9.4 is 2.0 degrees absolute or more.

摘要翻译： 一种电子照相图像形成装置，包括：电子照相感光体，包括：导电基片; 电荷产生层; 和电荷输送层，充电器; 辐照器 图像开发人员 以及向电子照相感光体施加不小于65μA的电流的转移器，其中电荷产生层包含具有多个衍射峰的CuKα1.542AX射线衍射光谱的钛氧基酞菁晶体，其中在Bragg观察到最大衍射峰 （2θ）角为27.2°; 在9.4°，9.6°和24.0°观察到主峰; 并且在7.3°处观察到最小衍射峰; 并且在大于7.3°且小于9.4°的角度处未观察到衍射峰，其中所述角度可以变化±0.2°，并且在7.3和9.4的所需峰之间没有观察到峰值的最小间隔为2.0度绝对值或更大 。

公开(公告)号：US07029810B2

公开(公告)日：2006-04-18

申请号：US10665155

申请日：2003-09-22

申请人： Naohiro Toda ,  Tatsuya Niimi

发明人： Naohiro Toda ,  Tatsuya Niimi

IPC分类号： G03G5/00 ,  G03G15/02 ,  G03G15/047

CPC分类号： G03G5/0696 ,  G03G2215/00957

摘要： An electrophotographic image forming apparatus comprising: an electrophotographic photoreceptor comprising: an electroconductive substrate; a charge generation layer; and a charge transport layer in this order, a charger; an irradiator; an image developer; and a transferer applying an electric current not less than 65 μA to the electrophotographic photoreceptor, wherein the charge generation layer comprises titanylphthalocyanine crystals having a CuKα 1.542 Å X-ray diffraction spectrum having plural diffraction peaks, wherein a maximum diffraction peak is observed at a Bragg (2 θ) angle of 27.2°; main peaks are observed at 9.4°, 9.6° and 24.0°; and a minimum diffraction peak is observed at 7.3°; and no diffraction peak is observed at an angle greater than 7.3° and less than 9.4°, wherein said angles may vary by ±0.2° and the minimum interval where no peak is observed between required peaks at 7.3 and 9.4 is 2.0 degrees absolute or more.

摘要翻译： 一种电子照相图像形成装置，包括：电子照相感光体，包括：导电基片; 电荷产生层; 和电荷输送层，充电器; 辐照器 图像开发人员 以及向电子照相感光体施加不小于65μA的电流的转移器，其中电荷产生层包含具有多个衍射峰的CuKα1.542AX射线衍射光谱的钛氧基酞菁晶体，其中在Bragg观察到最大衍射峰 （2θ）角为27.2°; 在9.4°，9.6°和24.0°观察到主峰; 并且在7.3°处观察到最小衍射峰; 并且在大于7.3°且小于9.4°的角度处未观察到衍射峰，其中所述角度可以变化±0.2°，并且在7.3和9.4的所需峰之间没有观察到峰值的最小间隔为2.0度绝对值或更大 。

公开(公告)号：US20050106482A1

公开(公告)日：2005-05-19

申请号：US11017731

申请日：2004-12-22

申请人： Hidetoshi Kami ,  Tatsuya Niimi ,  Akihiko Matsuyama ,  Eiji Kurimoto ,  Nozomu Tamoto

发明人： Hidetoshi Kami ,  Tatsuya Niimi ,  Akihiko Matsuyama ,  Eiji Kurimoto ,  Nozomu Tamoto

IPC分类号： G03G5/02 ,  G03G5/05 ,  G03G5/147 ,  G03G5/047

CPC分类号： G03G5/14791 ,  G03G5/0217 ,  G03G5/0507 ,  G03G5/14704 ,  G03G5/14795

摘要： A photoreceptor including an electroconductive substrate; and a photosensitive layer located overlying the electroconductive substrate and comprising a charge generation material, a charge transport material and an inorganic filler, wherein the content of the inorganic filler at a surface side of the photosensitive layer is greater than that at a bottom side of the photosensitive layer near the electroconductive substrate, and wherein an outermost layer of the photoreceptor has a water vapor permeability not greater than 50 g·m−2·24 h−1.

摘要翻译： 包含导电基片的感光体; 以及位于导电基底上的感光层，其包含电荷产生材料，电荷传输材料和无机填料，其中感光层表面侧的无机填料的含量大于在感光层的底侧的含量 感光层附近，并且其中感光体的最外层具有不大于50g·h -224h -1 -1的水蒸气渗透性。

公开(公告)号：US20050084287A1

公开(公告)日：2005-04-21

申请号：US10927050

申请日：2004-08-27

申请人： Tatsuya Niimi ,  Masami Kadonaga

发明人： Tatsuya Niimi ,  Masami Kadonaga

IPC分类号： G03G5/043 ,  G03G5/06 ,  G03G5/07 ,  G03G5/14 ,  G03G5/147 ,  G03G15/02 ,  G03G21/00 ,  G03G21/18

CPC分类号： G03G15/0266 ,  G03G2215/02

摘要： The present invention relates to an image forming apparatus, an image forming process and a process cartridge, in which the image quality and the durability of the photoconductor may be enhanced, images may be formed stably even after the repeated usages, and higher quality and higher stability of images may be established due to the superimposed alternating voltage as well as decrease of the charging hazard on the photoconductor. Specifically, the image forming apparatus according to the present invention comprises a photoconductor, latent electrostatic image forming unit, developing unit a transferring unit, and fixing unit, wherein, the charging member is of roller shape disposed proximate to the photoconductor, the photoconductor is charged at the charging nip portion formed between the photoconductor and the charging member, in a condition that satisfies the following Equation: 4.4×1014≦[(Number of Charged Particles)÷(Perimeter of Photoconductor)]≦17.7×1014 wherein the “Number of Charged Particles” refers to the number of charged particles accepted by the photoconductor surface per its unit surface area from the operated charging member, while the photoconductor rotates one round, thus the unit is [number/m2]; and the unit of “Perimeter of Photoconductor” is [mm].

摘要翻译： 本发明涉及图像形成装置，图像形成处理和处理盒，其中可以增强感光体的图像质量和耐久性，即使在重复使用之后也可以稳定地形成图像，并且更高的质量和更高 可能由于叠加的交流电压以及光电导体上的充电危害的降低而建立图像的稳定性。 具体地，根据本发明的图像形成装置包括感光体，静电潜像形成单元，显影单元，转印单元和定影单元，其中，充电构件是靠近感光体设置的辊状，光电导体被充电 在满足以下等式的条件下，在形成在光电导体和充电部件之间的充电压合部分处：<？in-line-formula description =“In-line formula”end =“lead”？> 4.4x10 < 14 <= [（带电粒子数）/（感光体周长）] <= 17.7×10 14 <？in-line-formula description =“In-line Formulas”end = “尾”→其中“带电粒子数”是指由感光体表面接受的带电粒子数目，其每单位表面积与操作的充电部件的数目相同，而光电导体旋转一圈，因此该单位为[数量/ m 2]; “感光体周边”的单位为[mm]。

公开(公告)号：US06858362B2

公开(公告)日：2005-02-22

申请号：US10625408

申请日：2003-07-23

申请人： Nozomu Tamoto ,  Tetsuro Suzuki ,  Hiroshi Tamura ,  Tatsuya Niimi ,  Akihiko Matsuyama ,  Eiji Kurimoto ,  Hidetoshi Kami

发明人： Nozomu Tamoto ,  Tetsuro Suzuki ,  Hiroshi Tamura ,  Tatsuya Niimi ,  Akihiko Matsuyama ,  Eiji Kurimoto ,  Hidetoshi Kami

IPC分类号： G03G5/05 ,  G03G5/147

CPC分类号： G03G5/0514 ,  G03G5/0507 ,  G03G5/051 ,  G03G5/14704 ,  G03G5/14708 ,  Y10S430/103

摘要： An electrophotographic photoreceptor including an electroconductive substrate, a photosensitive layer located overlying the electroconductive substrate, and optionally a protective layer overlying the photosensitive layer, wherein an outermost layer of the photoreceptor includes a filler, a binder resin and an organic compound having an acid value of from 10 to 700 mgKOH/g. The photosensitive layer can be the outermost layer. A coating liquid for an outermost layer of a photoreceptor including a filler, a binder resin, an organic compound having an acid value of from 10 to 700 mgKOH/g and plural organic solvents. A method for preparing a photoreceptor including forming a photosensitive layer, and coating the coating liquid on the photosensitive layer. An image forming method and apparatus and a process cartridge using the photoreceptor are also provided.

摘要翻译： 包括导电基片的电子照相感光体，位于导电基底上的感光层，以及任选地覆盖感光层的保护层，其中感光体的最外层包括填料，粘合剂树脂和酸值为 10至700mgKOH / g。 感光层可以是最外层。 包含填充剂，粘合剂树脂，酸值为10〜700mgKOH / g的有机化合物和多种有机溶剂的感光体的最外层的涂布液。 一种制备感光体的方法，包括形成感光层，并将涂布液涂覆在感光层上。 还提供了一种图像形成方法和装置以及使用感光体的处理盒。

公开(公告)号：US06576388B2

公开(公告)日：2003-06-10

申请号：US09985368

申请日：2001-11-02

申请人： Yohta Sakon ,  Akio Kosuge ,  Tatsuya Niimi ,  Narihito Kojima

发明人： Yohta Sakon ,  Akio Kosuge ,  Tatsuya Niimi ,  Narihito Kojima

IPC分类号： G03G514

CPC分类号： G03G5/14708 ,  G03G5/14704

摘要： An electrophotographic photoreceptor including at least an electroconductive substrate; and a photosensitive layer overlying the electroconductive substrate and including at least a charge generation layer; a charge transport layer; and a protective layer including a filler, wherein the filler is dispersed in the protective layer so as to occupy an area of from 3 to 5% of a cross section of the protective layer; the filler has particle diameter distribution having a peak at a diameter of from 0.2 to 0.3 &mgr;m; and the particles of the filler having a particle diameter of not less than 0.3 &mgr;m occupies an area of from 10 to 30% of the area of all the filler in the cross section of the protective layer.