公开(公告)号：US20100189482A1

公开(公告)日：2010-07-29

申请号：US12620704

申请日：2009-11-18

申请人： Jun Azuma ,  Kensuke Okawa ,  Eiji Morimoto

发明人： Jun Azuma ,  Kensuke Okawa ,  Eiji Morimoto

IPC分类号： G03G21/00

CPC分类号： G03G21/1828 ,  G03G21/0011 ,  G03G21/007 ,  G03G21/1832 ,  G03G2221/0089

摘要： In some embodiments, a drum unit may include an electrophotographic photosensitive member having a base member and a photosensitive layer on the base member. An embodiment may include a cleaning blade configured to abut the photosensitive layer to remove a developer remaining on the photosensitive layer of the electrophotographic photosensitive member. Some embodiments may include side seals disposed at both ends of the cleaning blade to inhibit leakage of the developer. In some embodiments, a portion of a side seal may be in contact with at least a portion of the surface and an end face of the photosensitive layer.

摘要翻译： 在一些实施例中，鼓单元可以包括在基底构件上具有基底构件和感光层的电子照相感光构件。 实施例可以包括被配置为邻接感光层以去除残留在电子照相感光构件的感光层上的显影剂的清洁刮板。 一些实施例可以包括设置在清洁刮板两端的侧密封件，以抑制显影剂的泄漏。 在一些实施例中，侧密封件的一部分可以与感光层的表面和端面的至少一部分接触。

公开(公告)号：US08660459B2

公开(公告)日：2014-02-25

申请号：US12620704

申请日：2009-11-18

申请人： Jun Azuma ,  Kensuke Okawa ,  Eiji Morimoto

发明人： Jun Azuma ,  Kensuke Okawa ,  Eiji Morimoto

IPC分类号： G03G15/08 ,  G03G21/00 ,  G03G21/18

CPC分类号： G03G21/1828 ,  G03G21/0011 ,  G03G21/007 ,  G03G21/1832 ,  G03G2221/0089

摘要： In some embodiments, a drum unit may include an electrophotographic photosensitive member having a base member and a photosensitive layer on the base member. An embodiment may include a cleaning blade configured to abut the photosensitive layer to remove a developer remaining on the photosensitive layer of the electrophotographic photosensitive member. Some embodiments may include side seals disposed at both ends of the cleaning blade to inhibit leakage of the developer. In some embodiments, a portion of a side seal may be in contact with at least a portion of the surface and an end face of the photosensitive layer.

摘要翻译： 在一些实施例中，鼓单元可以包括在基底构件上具有基底构件和感光层的电子照相感光构件。 实施例可以包括被配置为邻接感光层以去除残留在电子照相感光构件的感光层上的显影剂的清洁刮板。 一些实施例可以包括设置在清洁刮板两端的侧密封件，以抑制显影剂的泄漏。 在一些实施例中，侧密封件的一部分可以与感光层的表面和端面的至少一部分接触。

公开(公告)号：US08765337B2

公开(公告)日：2014-07-01

申请号：US11805588

申请日：2007-05-24

申请人： Keiji Maruo ,  Junichiro Otsubo ,  Jun Azuma

发明人： Keiji Maruo ,  Junichiro Otsubo ,  Jun Azuma

IPC分类号： G03G5/047

CPC分类号： G03G5/0696 ,  G03G5/047 ,  G03G5/0564 ,  G03G5/0596 ,  G03G5/0614

摘要： The present invention is to provide a multilayer type electrophotographic photoconductor capable of stably obtaining a high image quality image over a long term by restraining the exposure memory and the photo memory, and an image forming apparatus comprising such a multilayer type electrophotographic photoconductor. A multilayer type electrophotographic photoconductor comprising a charge generating layer containing at least a charge generating agent on a base member directly or via an intermediate layer, and a charge transporting layer containing at least a charge transporting agent and a binder resin formed successively, wherein the light absorption degree at a 680 nm wavelength light beam in the photoconductive layer of the multilayer type electrophotographic photoconductor is of a value of 0.8 or less, and the light absorption degree at a 450 nm wavelength light beam is of a value of 1.0 or more, and an image forming apparatus comprising such a multilayer type electrophotographic photoconductor are provided.

摘要翻译： 本发明提供一种能够通过抑制曝光存储器和光存储器而能够长期稳定地获得高图像质量图像的多层电子照相感光体，以及包括这种多层型电子照相感光体的图像形成装置。 包括直接或通过中间层在基底上至少含有电荷产生剂的电荷产生层和至少含有电荷输送剂和依次形成的粘合剂树脂的电荷输送层的多层电子照相感光体，其中，所述光 多层电子照相感光体的光电导层中的680nm波长光束的吸收度为0.8以下，450nm波长光束的光吸收度为1.0以上， 提供了包括这种多层型电子照相感光体的图像形成装置。

公开(公告)号：US07855286B2

公开(公告)日：2010-12-21

申请号：US12589874

申请日：2009-10-29

申请人： Junichiro Otsubo ,  Jun Azuma

发明人： Junichiro Otsubo ,  Jun Azuma

IPC分类号： C09B47/067

CPC分类号： C09B67/0019 ,  C09B67/0016 ,  C09B67/0026 ,  G03G5/0603 ,  G03G5/0614 ,  G03G5/0616 ,  G03G5/0675 ,  G03G5/0677 ,  G03G5/0696

摘要： According to the present invention, a titanyl phthalocyanin crystal excellent in storage stability in organic solvents, a method for preparing the same and an electrophotographic photoconductor using the same are provided. In the titanyl phthalocyanin crystal, the method for preparing such a titanyl phthalocyanin crystal and the electrophotographic photoconductor using the same, the titanyl phthalocyanin crystal is characterized by having the maximum peak at a Bragg angle 2θ±0.2°=27.2° in a CuKα characteristic X-ray diffraction spectrum and one peak within the range of 270 to 400° C. other than a peak accompanied by the vaporization of adsorbed water in a differential scanning calorimetric analysis.

摘要翻译： 根据本发明，提供了在有机溶剂中的保存稳定性优异的酞菁钛结晶，其制备方法和使用其的电子照相感光体。 在酞菁钛结晶中，制备这种酞菁钛结晶的方法和使用其的电子照相感光体，钛酞菁结晶的特征在​​于在CuKα特性中在布拉格角2处具有最大峰;±0.2°= 27.2° 在差示扫描量热分析中除吸附水的蒸发之外的峰值之外，在270〜400℃的范围内的X射线衍射光谱和一个峰。

公开(公告)号：US20080026310A1

公开(公告)日：2008-01-31

申请号：US11827115

申请日：2007-07-10

申请人： Daisuke Kuboshima ,  Jun Azuma ,  Yoshio Inagaki ,  Junichiro Otsubo ,  Keiji Maruo

发明人： Daisuke Kuboshima ,  Jun Azuma ,  Yoshio Inagaki ,  Junichiro Otsubo ,  Keiji Maruo

IPC分类号： G03G15/04 ,  C07D207/50 ,  C30B7/06

CPC分类号： C09B67/0026 ,  C09B67/0016 ,  G03G5/0696

摘要： The invention provides an oxo-titanylphthalocyanine crystal which is stable, is superior in dispersibility in a photoreceptive layer and efficiently contributes to improvements in sensitivity and charge retention rate of an electrophotographic photoreceptor when it is used as a charge generating agent, a method for producing the oxo-titanylphthalocyanine crystal, and an electrophotographic photoreceptor. The oxo-titanylphthalocyanine crystal has predetermined optical characteristics and thermal properties and is produced by a production method including the following steps (a) to (d): (a) a step of dissolving a crude oxo-titanylphthalocyanine crystal in an acid to obtain an oxo-titanylphthalocyanine solution; (b) a step of adding the oxo-titanylphthalocyanine solution dropwise in a poor solvent to obtain a wet cake; (c) a step of washing the wet cake with an alcohol having 1 to 4 carbon atoms; and (d) a step of stirring the washed wet cake under heating in a nonaqueous solvent to obtain an oxo-titanylphthalocyanine crystal.

摘要翻译： 本发明提供了一种稳定的氧代 - 钛氧基酞菁晶体，其在感光层中的分散性优异，并且有效地提高了当用作电荷产生剂时电子照相感光体的灵敏度和电荷保持率的提高， 氧代 - 钛氧基酞菁晶体和电子照相感光体。 氧代 - 钛氧基酞菁晶体具有预定的光学特性和热性质，并且通过包括以下步骤（a）至（d）的制备方法制备：（a）将粗的氧代 - 氧代 - 酞菁结晶溶解在酸中以获得 氧代 - 钛氧基酞菁溶液; （b）将氧代 - 钛氧基酞菁溶液滴加到不良溶剂中以获得湿滤饼的步骤; （c）用具有1至4个碳原子的醇洗涤湿滤饼的步骤; 和（d）在非水溶剂中加热下搅拌洗涤的湿滤饼以获得氧代 - 氧化钛酞菁晶体的步骤。

公开(公告)号：US06858368B2

公开(公告)日：2005-02-22

申请号：US10249102

申请日：2003-03-17

申请人： Jun Azuma ,  Yukimasa Watanabe ,  Ayako Yashima

发明人： Jun Azuma ,  Yukimasa Watanabe ,  Ayako Yashima

IPC分类号： G03G5/06 ,  G03G13/20

CPC分类号： G03G5/0679 ,  G03G5/0609 ,  G03G5/0668 ,  G03G5/0677 ,  G03G5/0696

摘要： 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.

摘要翻译： 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。

公开(公告)号：US5907745A

公开(公告)日：1999-05-25

申请号：US850818

申请日：1997-05-02

申请人： Jun Azuma ,  Yoshinori Sugiura ,  Seietsu Miura ,  Tatsuo Hamada ,  Hiroshi Goto ,  Akira Kuroda ,  Takeshi Niimura ,  Yoshihiro Matsuo

发明人： Jun Azuma ,  Yoshinori Sugiura ,  Seietsu Miura ,  Tatsuo Hamada ,  Hiroshi Goto ,  Akira Kuroda ,  Takeshi Niimura ,  Yoshihiro Matsuo

IPC分类号： B41J2/435 ,  B41J2/44 ,  B41J13/10 ,  G03G15/00 ,  G03G15/04 ,  G03G15/20 ,  G03G15/32 ,  G03G21/20

CPC分类号： G03G15/6552 ,  B41J13/10 ,  B41J2/435 ,  B41J2/442 ,  G03G15/00 ,  G03G15/326 ,  G03G15/6502 ,  G03G21/206 ,  B65H2301/42142 ,  G03G15/0435 ,  G03G2215/00371 ,  G03G2215/00383 ,  G03G2215/00413

摘要： An image forming apparatus for forming an image on a recording material includes an image bearing member; and optical mechanism for projecting light corresponding to image information onto the image bearing member; a developer for developing a latent image formed on the image bearing member into a toner image; a transfer mechanism for transferring the toner image onto a recording material; a fixer for fixing the toner image transferred onto the recording material; a first support for supporting the recording material to be fed to the transfer mechanism; and a second support for supporting the recording material which has been subjected to a fixing operation of the fixer. Air ducts are provided along the back side supporting surfaces of the first support and the second support which overlap in a horizontal direction with the optical mechanism therebetween. A sheet feeding position, an image transfer position, and an image fixing position take lower positions in the order named.

摘要翻译： 用于在记录材料上形成图像的图像形成装置包括图像承载部件; 以及用于将对应于图像信息的光投射到图像承载部件上的光学机构; 用于将形成在图像承载部件上的潜像显影成调色剂图像的显影剂; 用于将调色剂图像转印到记录材料上的转印机构; 用于固定转印到记录材料上的调色剂图像的定影剂; 用于支撑待传送到传送机构的记录材料的第一支撑件; 以及用于支撑经过定影剂的定影操作的记录材料的第二支撑件。 沿着第一支撑件和第二支撑件的后侧支撑表面沿着水平方向重叠的空气管道，其间具有光学机构。 送纸位置，图像转印位置和图像定影位置以所述顺序取下较低的位置。

公开(公告)号：US20110046392A1

公开(公告)日：2011-02-24

申请号：US12924710

申请日：2010-10-01

申请人： Daisuke Kuboshima ,  Jun Azuma ,  Yoshio Inagaki ,  Junichiro Otsubo ,  Keiji Maruo

发明人： Daisuke Kuboshima ,  Jun Azuma ,  Yoshio Inagaki ,  Junichiro Otsubo ,  Keiji Maruo

IPC分类号： C07F7/28

CPC分类号： C09B67/0026 ,  C09B67/0016 ,  G03G5/0696

摘要： The invention provides an oxo-titanylphthalocyanine crystal which is stable, is superior in dispersibility in a photoreceptive layer and efficiently contributes to improvements in sensitivity and charge retention rate of an electrophotographic photoreceptor when it is used as a charge generating agent, a method for producing the oxo-titanylphthalocyanine crystal, and an electrophotographic photoreceptor. The oxo-titanylphthalocyanine crystal has predetermined optical characteristics and thermal properties and is produced by a production method including the following steps (a) to (d): (a) a step of dissolving a crude oxo-titanylphthalocyanine crystal in an acid to obtain an oxo-titanylphthalocyanine solution; (b) a step of adding the oxo-titanylphthalocyanine solution dropwise in a poor solvent to obtain a wet cake; (c) a step of washing the wet cake with an alcohol having 1 to 4 carbon atoms; and (d) a step of stirring the washed wet cake under heating in a nonaqueous solvent to obtain an oxo-titanylphthalocyanine crystal.

摘要翻译： 本发明提供了一种稳定的氧代 - 钛氧基酞菁晶体，其在感光层中的分散性优异，并且有效地提高了当用作电荷产生剂时电子照相感光体的灵敏度和电荷保持率的提高， 氧代 - 钛氧基酞菁晶体和电子照相感光体。 氧代 - 钛氧基酞菁晶体具有预定的光学特性和热性质，并且通过包括以下步骤（a）至（d）的制备方法制备：（a）将粗的氧代 - 氧代 - 酞菁结晶溶解在酸中以获得 氧代 - 钛氧基酞菁溶液; （b）将氧代 - 钛氧基酞菁溶液滴加到不良溶剂中以获得湿滤饼的步骤; （c）用具有1至4个碳原子的醇洗涤湿滤饼的步骤; 和（d）在非水溶剂中加热下搅拌洗涤的湿滤饼以获得氧代 - 氧化钛酞菁晶体的步骤。

公开(公告)号：US07693454B2

公开(公告)日：2010-04-06

申请号：US11717190

申请日：2007-03-13

申请人： Jun Azuma ,  Junichiro Otsubo

发明人： Jun Azuma ,  Junichiro Otsubo

IPC分类号： G03G15/00

CPC分类号： G03G15/751 ,  G03G5/144

摘要： Disclosed is an image forming apparatus composed of a combination of multi-layered electrophotographic photoreceptor wherein an undercoat layer is made of at least fine titanium oxide particles and a binder resin and has a thickness of 3 μm or less and the fine titanium oxide particles are surface treated with alumina and silica and have a number average primary particle size of 20 nm or less, and exposing means by LED exposure. Thus, an electrophotographic photoreceptor having good balance between dispersibility of titanium oxide and electrical insulation properties is obtained and image fog does not occur under high temperature and high humidity environment and also excellent image quality can be maintained during continuous printing under low temperature and low humidity environment.

摘要翻译： 公开了一种图像形成装置，其由多层电子照相感光体的组合构成，其中底涂层由至少细小的氧化钛颗粒和粘合剂树脂制成，并且具有3μm或更小的厚度，并且氧化钛微粒是表面 用氧化铝和二氧化硅处理，数均原始粒径为20nm以下，通过LED曝光曝光。 因此，获得了在氧化钛的分散性和电绝缘性之间具有良好平衡的电子照相感光体，并且在高温和高湿度环境下不发生图像雾化，并且在低温和低湿度环境下连续印刷期间可以保持良好的图像质量 。

公开(公告)号：US20060166117A1

公开(公告)日：2006-07-27

申请号：US10563507

申请日：2004-11-17

申请人： Jun Azuma ,  Fumio Sugai

发明人： Jun Azuma ,  Fumio Sugai

IPC分类号： G03G5/047 ,  G03G5/05

CPC分类号： G03G5/0637 ,  G03G5/0436 ,  G03G5/0557 ,  G03G5/0564 ,  G03G5/0592 ,  G03G5/0596 ,  G03G5/0605 ,  G03G5/065 ,  G03G5/0651 ,  G03G5/0661

摘要： It is an object of the present invention to provide a wet-developing electrophotographic photoconductor which can be manufactured stably by making use of particular physical property indexes of an electron transport agent and a binding resin and possesses the excellent durability and the excellent solvent resistance and a wet-developing image forming device which uses such a wet-developing electrophotographic photoconductor. To achieve such an object, in a wet-developing electrophotographic photoconductor which forms a photosensitive layer containing at least a charge generating agent, an electron transport agent, a hole transport agent and a binding resin on an electrically conductive base body thereof and a wet-developing image forming device which uses the wet-developing electrophotographic photoconductor, an inorganic value/organic value (I/O value) of the electron transport agent is set to 0.60 or more and an inorganic value/organic value (I/O value) of the binding resin is set to 0.37 or more, or a molecular weight of the electron transport agent is set to a value equal to or more than 600 and an inorganic value/organic value (I/O value) of the binding resin is set to 0.37 or more.

摘要翻译： 本发明的目的是提供一种湿式显影电子照相感光体，其可以通过使用电子传输剂和粘合树脂的特定物理性能指标而稳定地制造，并且具有优异的耐久性和优异的耐溶剂性和 湿式显影图像形成装置，其使用这种湿式显影电子照相感光体。 为了实现这样的目的，在形成感光层的湿式显影电子照相感光体中，该感光层至少含有电荷发生剂，电子传输剂，空穴传输剂和粘合树脂，在导电性基体上， 使用湿式显影电子照相感光体的显影图像形成装置将电子传输剂的无机值/有机值（I / O值）设定为0.60以上，无机值/有机值（I / O值）为 将粘合树脂设定为0.37以上，将电子输送剂的分子量设定为600以上的值，将粘合树脂的无机/有机值（I / O值）设定为 0.37以上。