公开(公告)号：US20120045246A1

公开(公告)日：2012-02-23

申请号：US13232021

申请日：2011-09-14

申请人： Teruyuki MITSUMORI ,  Kozo ISHIO ,  Hiroaki TAKAMURA ,  Masaya OOTA ,  Shiho SANO ,  Takeshi OOWADA ,  Masakazu SUGIHARA ,  Teruki SENOKUTI ,  Shiro YASUTOMI ,  Yumi HIRABARU

发明人： Teruyuki MITSUMORI ,  Kozo ISHIO ,  Hiroaki TAKAMURA ,  Masaya OOTA ,  Shiho SANO ,  Takeshi OOWADA ,  Masakazu SUGIHARA ,  Teruki SENOKUTI ,  Shiro YASUTOMI ,  Yumi HIRABARU

IPC分类号： G03G15/00

CPC分类号： G03G13/08 ,  G03G9/0819 ,  G03G15/08

摘要： An image forming apparatus containing an electrophotographic photoreceptor and a toner for developing an electrostatic charge image, where the electrophotographic photoreceptor has an undercoat layer containing metal oxide particles; the toner for developing an electrostatic charge image is a toner for developing an electrostatic charge image containing toner matrix particles formed in an aqueous medium; the toner has a volume median diameter (Dv50) of from 4.0 μm to 7.0 μm; and the relationship between the volume median diameter (Dv50) and the percentage in number (Dns) of toner particles having a particle diameter of from 2.00 μm to 3.56 μm satisfies the following formula (1): Dns≦0.233EXP(17.3/Dv50)  (1) where Dv50 is the volume median diameter (μm) of the toner, and Dns is the percentage in number of toner particles having a particle diameter of from 2.00 μm to 3.56 μm.

摘要翻译： 一种包含电子照相感光体和用于显影静电荷图像的调色剂的成像设备，其中电子照相感光体具有含有金属氧化物颗粒的底涂层; 用于显影静电荷图像的调色剂是用于显影含有在水性介质中形成的调色剂基质颗粒的静电荷图像的调色剂; 调色剂的体积中值粒径（Dv50）为4.0μm〜7.0μm; 并且体积中值粒径（Dv50）与粒径为2.00μm〜3.56μm的调色剂粒子的数量（Dns）的关系满足下式（1）：Dns＆nlE; 0.233EXP（17.3 / Dv50） （1）其中Dv50是调色剂的体积中值直径（μm），Dns是粒径为2.00μm至3.56μm的调色剂颗粒数的百分数。

公开(公告)号：US20100316411A1

公开(公告)日：2010-12-16

申请号：US12849461

申请日：2010-08-03

申请人： Teruyuki MITSUMORI ,  Kozo ISHIO ,  Hiroaki TAKAMURA ,  Masaya OOTA ,  Shiho SANO ,  Takeshi OOWADA ,  Masakazu SUGIHARA ,  Teruki SENOKUTI ,  Shiro YASUTOMI ,  Yumi HIRABARU

发明人： Teruyuki MITSUMORI ,  Kozo ISHIO ,  Hiroaki TAKAMURA ,  Masaya OOTA ,  Shiho SANO ,  Takeshi OOWADA ,  Masakazu SUGIHARA ,  Teruki SENOKUTI ,  Shiro YASUTOMI ,  Yumi HIRABARU

IPC分类号： G03G15/00

CPC分类号： G03G13/08 ,  G03G9/0819 ,  G03G15/08

摘要： An image forming apparatus comprising an electrophotographic photoreceptor having a photosensitive layer on an electroconductive substrate, and a toner for developing an electrostatic charge image, wherein the photosensitive layer of the electrophotographic photoreceptor contains a phthalocyanine obtained via an acid paste step; the toner for developing an electrostatic charge image is a toner for developing an electrostatic charge image containing toner matrix particles formed in an aqueous medium; the toner has a volume median diameter (Dv50) of from 4.0 μm to 7.0 μm; and the relationship between the volume median diameter (Dv50) and the percentage in number (Dns) of toner particles having a particle diameter of from 2.00 μm to 3.56 μm satisfies the following formula (1): Dns≦0.233 EXP(17.3/Dv50)  (1)

摘要翻译： 一种图像形成装置，包括在导电性基体上具有感光层的电子照相感光体和静电荷图像显影用调色剂，其中，电子照相感光体的感光层含有通过酸性糊剂步骤得到的酞菁; 用于显影静电荷图像的调色剂是用于显影含有在水性介质中形成的调色剂基质颗粒的静电荷图像的调色剂; 调色剂的体积中值粒径（Dv50）为4.0μm〜7.0μm; 体积中值粒径（Dv50）与粒径为2.00μm〜3.56μm的调色剂粒子的数量（Dns）的关系满足下式（1）：Dns＆nlE; 0.233 EXP（17.3 / Dv50） （1）

公开(公告)号：US20110311271A1

公开(公告)日：2011-12-22

申请号：US13155660

申请日：2011-06-08

申请人： Hiroaki TAKAMURA

发明人： Hiroaki TAKAMURA

IPC分类号： G03G15/00 ,  G03G21/18 ,  G03G5/04

CPC分类号： G03G5/0564 ,  G03G5/10 ,  G03G5/102 ,  G03G2215/00957

摘要： It is to provide an electrophotographic photoreceptor which is excellent in cleaning properties and does not cause a problem of adhesiveness with a substrate in the case where an electrophotographic photoreceptor having a substrate whose outer diameter is small. There are provided an electrophotographic photoreceptor comprising a conductive substrate and a photosensitive layer provided thereon, wherein the conductive substrate has a cylindrical shape having an outer diameter of 25 mm or less and the photosensitive layer contains a copolycarbonate resin having a specific repeating structure as well as an image-forming apparatus having the electrophotographic photoreceptor mounted thereon.

摘要翻译： 提供一种电子照相感光体，其具有优异的清洁性能，并且在具有外径小的基板的电子照相感光体的情况下，不会引起与基板的粘附性的问题。 提供了一种电子照相感光体，其包括导电基底和设置在其上的感光层，其中导电基底具有外径为25mm或更小的圆柱形，感光层含有具有特定重复结构的共聚碳酸酯树脂以及 具有安装在其上的电子照相感光体的图像形成装置。

公开(公告)号：US20110294055A1

公开(公告)日：2011-12-01

申请号：US13149215

申请日：2011-05-31

申请人： Hiroaki TAKAMURA

发明人： Hiroaki TAKAMURA

IPC分类号： G03G5/07

CPC分类号： G03G5/0564

摘要： It is to provide a sheet-shaped electrophotographic photoreceptor which has an uncoated area, is good in mechanical adhesiveness between the photosensitive layer and the sheet-shaped conductive substrate but excellent ease of peeling with a solvent, and is further good in electrical properties. The electrophotographic photoreceptor comprises a sheet-shaped conductive substrate and a photosensitive layer provided thereon, wherein the electrophotographic photoreceptor contains a photosensitive layer-uncoated area within the sheet surface, and the photosensitive layer contains a copolycarbonate resin having an extremely restricted specific structure.

摘要翻译： 提供具有未涂覆区域的片状电子照相感光体，感光层与片状导电性基材的机械粘合性良好，但溶剂易剥离性优异，电性能更好。 电子照相感光体包括片状导电性基材和设置在其上的感光层，其中电子照相感光体在片材表面内含有感光层未涂覆区域，感光层含有特别限制的结构的共聚碳酸酯树脂。