公开(公告)号：JP2012027157A

公开(公告)日：2012-02-09

申请号：JP2010164373

申请日：2010-07-21

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： NISHI KIMIKO ,  TORIYAMA KOICHI ,  ARIMURA TAKUYA

IPC: G03G15/02

Abstract: PROBLEM TO BE SOLVED: To provide a charging apparatus, an image forming device, and an image forming method, which can satisfactorily remove nitrogen oxide.SOLUTION: A charging apparatus 5 for performing corona discharge includes a shield case 205 having an opening part, a discharging electrode 201 provided inside the shield case 205, and NOx removing layers 203 including at least amine-based compound, which is provided inside the shield case 205.

Abstract translation: 解决的问题：提供一种能够令人满意地除去氮氧化物的充电装置，图像形成装置和图像形成方法。 解决方案：用于执行电晕放电的充电装置5包括具有开口部分的屏蔽壳体205，设置在屏蔽壳体205内部的放电电极201，以及至少包含胺基化合物的NOx去除层203 在盾壳205内。版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2005148642A

公开(公告)日：2005-06-09

申请号：JP2003389669

申请日：2003-11-19

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： TORIYAMA KOICHI ,  FUKUSHIMA KOUTARO ,  OBATA TAKATSUGU ,  ARIMURA TAKUYA

IPC: G03G5/06 ,  C07C211/57 ,  G03G5/047 ,  G03G5/05 ,  G03G15/00

CPC classification number: G03G5/0672 ,  G03G5/0601 ,  G03G5/0614 ,  G03G5/0616

Abstract: PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor having high sensitivity and high optical response, free of lowering of these electrical properties even by any of exposure to light, environmental variation and repetitive use, excellent in cleanability and so excellent in durability that degradation of image quality is not caused to formed images over a prolonged period of time. SOLUTION: In the electrophotographic photoreceptor 1, an enamine compound shown by general formula (1), such as an enamine compound shown by structural formula (1-1) is contained in a photosensitive layer 14 and a surface free energy (γ) of a surface of the photosensitive layer 14 is set to 20.0-35.0 mN/m. COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：为了提供具有高灵敏度和高光学响应的​​电子照相感光体，即使通过曝光，环境变化和重复使用也不会降低这些电性能，可清洁性优异和耐久性优异 图像质量的降低不会在长时间内形成图像。 解决方案：在电子照相感光体1中，通式（1）所示的烯胺化合物如结构式（1-1）所示的烯胺化合物包含在感光层14中，表面自由能（γ ）感光层14的表面设定为20.0-35.0mN / m。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2011027970A

公开(公告)日：2011-02-10

申请号：JP2009173097

申请日：2009-07-24

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： ARIMURA TAKUYA ,  KATAYAMA SATOSHI ,  SUGIMURA HIROSHI

IPC: G03G5/06 ,  G03G5/05 ,  G03G5/14

Abstract: PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor that has high electric durability to repeated use of a long time under exposure of light of short wavelength, and outputs a high-definition image without abnormal image, and to provide an image forming apparatus including the electrophotographic photoreceptor.
SOLUTION: The electrophotographic photoreceptor includes at least a photosensitive layer where a charge generating layer and charge transporting layer are stacked on a conductive support in this order or reverse order. The charge transporting layer contains specific bis-condensation pyrimidine-based compound as a charge generating material, and has a photosensitive characteristic to light with a wavelength of 350-500 nm.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：为了提供一种在短波长的光的曝光下重复使用长时间具有高电耐久性的电子照相感光体，并且输出没有异常图像的高分辨率图像，并且提供图像形成 包括电子照相感光体的装置。 解决方案：电子照相感光体至少包括感光层，其中电荷产生层和电荷输送层以该顺序或相反的顺序堆叠在导电性支持体上。 电荷输送层含有特定的双缩合嘧啶类化合物作为电荷产生材料，并且对波长350-500nm的光具有光敏特性。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2008176048A

公开(公告)日：2008-07-31

申请号：JP2007009296

申请日：2007-01-18

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： ARIMURA TAKUYA ,  FUKUSHIMA KOUTARO ,  KANAZAWA TOMOKO ,  NAKAMURA TOMOKI

IPC: G03G5/147 ,  G03G5/05

Abstract: PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor excellent in wear resistance, cleaning properties and electrical durability, even in the case of repeated use for a long period of time under exposure with short-wavelength light and is capable of outputting high-quality images free of an abnormal image.
SOLUTION: The electrophotographic photoreceptor has at least a charge-generating layer and a charge transport layer, in this order, on a conductive substrate, wherein the outermost surface layer of the electrophotographic photoreceptor contains filler particles; the filler particles in the outermost surface layer are in a uniformly dispersed state satisfying Expression (1): 1.0×10
-3 ≤(df×b
3 )/(dm×a
3 )≤2.5×10
-2 (wherein "a" denotes an average interval (nm) between filler particles; "b" denotes the average diameter (nm) of the filler particles; "df" denotes the density (g/cm
3 ) of the filler particles; "dm" denotes the average density (g/cm
3 ) of a solid in the outermost surface layer); and the charge generating layer comprises a material capable of generating charges by exposure light, having an oscillation wavelength of 350-500 nm.
COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：为了提供耐磨性，清洁性和电气耐久性优异的电子照相感光体，即使在短波长光照射下长时间反复使用的情况下，也能够输出高 质量图像无异常图像。 解决方案：电子照相感光体依次具有至少电荷产生层和电荷传输层，导电基底上，电子照相感光体的最表面层含有填料颗粒; 满足表达式（1）的最外表面层中的填料颗粒处于均匀分散状态：1.0×10 -3 ≤（df×b 3 ）/（dm× （其中“a”表示填料颗粒之间的平均间隔（nm）;“b”表示填料颗粒之间的平均直径（nm） 填充剂颗粒;“df”表示填料颗粒的密度（g / cm 3; SP 3）;“dm”表示填料颗粒的平均密度（g / cm 3 SP＆lt; SP＆gt; 固体在最外表面层）; 并且电荷产生层包括能够通过曝光光产生电荷的材料，其振荡波长为350-500nm。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2010152099A

公开(公告)日：2010-07-08

申请号：JP2008330390

申请日：2008-12-25

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： ARIMURA TAKUYA ,  KATAYAMA SATOSHI

IPC: G03G5/14 ,  G03G5/00

Abstract: PROBLEM TO BE SOLVED: To provide a coating liquid for forming an undercoat layer, which is capable of suppressing the potential rise due to the change in sensitivity and repeated use of a photoreceptor in a low-temperature and low humidity environment and is capable of reducing image defects such as black dots considered to be caused by secondary particles in a high-temperature and high-humidity environment, and a method of manufacturing the same. SOLUTION: The coating liquid for forming an undercoat layer is used for manufacturing of an electrophotographic photoreceptor having at least an undercoat layer on a conductive base and a photosensitive layer formed on the undercoat layer. The coating liquid for forming an undercoat layer contains a fine metal particles and a binder resin. The fine metal particles comprise primary particles and secondary particles and have an average particle size of ≤200 nm, the coating liquid is filtered, the coating liquid after filtering has fixed turbidity, and the ratio P/R of the weight (P) of the fine metal particles to the weight (R) of the binder resin in the coating liquid is 1 to COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供一种能够抑制由于灵敏度变化引起的电位上升和在低温低湿环境中重复使用感光体的底涂层的涂布液，并且是 能够降低在高温高湿环境下被认为是由二次粒子引起的黑点的图像缺陷及其制造方法。 ＆lt; P＆gt;解决方案：用于形成底涂层的涂布液用于制造在导电性基材上至少具有底涂层的电子照相感光体和形成在底涂层上的感光层。 用于形成底涂层的涂布液含有金属微粒和粘合剂树脂。 细金属颗粒包含一次粒子和二次粒子，平均粒径≤200nm，过滤涂布液，过滤后的涂布液具有固定的浊度，并且重量（P）的比值P / R 涂布液中粘合剂树脂的重量（R）的细金属颗粒为1〜10％。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2009222800A

公开(公告)日：2009-10-01

申请号：JP2008064634

申请日：2008-03-13

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： ARIMURA TAKUYA ,  NAKAMURA TOMOKI

IPC: G03G5/06 ,  G03G5/05

Abstract: PROBLEM TO BE SOLVED: To provide a coating liquid for forming a charge generating layer, from which an electrophotographic photoreceptor with little sensitivity change and fewer image defects such as black spots upon outputting an image can be manufactured.
SOLUTION: The coating liquid for forming a charge generating layer is used for an electrophotographic photoreceptor that has a photosensitive layer containing at least a charge generating layer and a charge transport layer on a conductive substrate, and the liquid contains pigment particles as a charge generating substance and a binder resin and is subjected to filtration. The pigment particles contain primary particles and secondary aggregated particles, with an average particle diameter of ≤1.0 μm and show a ratio of a cumulative 90%-particle diameter before the filtration to a cumulative 90%-particle diameter after the filtration ranging from 65 to 90%.
COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供一种用于形成电荷产生层的涂布液，可以制造在输出图像时具有很小灵敏度变化的电子照相感光体和较少的图像缺陷如黑点。 解决方案：用于形成电荷产生层的涂布液用于具有在导电性基材上至少含有电荷产生层和电荷输送层的感光层的电子照相感光体，并且液体含有颜料颗粒 电荷产生物质和粘合剂树脂，并进行过滤。 颜料颗粒含有一次颗粒和二次凝集颗粒，其平均粒径≤1.0μm，并且显示过滤后的累积90％ - 颗粒直径与过滤后的累积90％粒径之比为65至 90％。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2009014853A

公开(公告)日：2009-01-22

申请号：JP2007174436

申请日：2007-07-02

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： ARIMURA TAKUYA

IPC: G03G21/00 ,  G03G15/00

Abstract: PROBLEM TO BE SOLVED: To provide a photoreceptor drum capable of securing electric conduction between a pipe stock and a conduction plate. SOLUTION: The electrophotographic photoreceptor drum includes: the photoreceptor drum 1 constituted by forming a photoreceptive layer on the outer circumferential surface of an aluminum tube; a first insulated flange part 3; a second insulated flange part 7; and a conductive elastic member 5 which is fixed to the side surface of the first flange part 3 and is formed with a projecting end 5a pressing the inner circumferential surface of a drum part and a sliding part sliding in contact with a supporting shaft 4 penetrating through an aperture in the first insulated flange part. The projecting end 5a is formed so as to project from the inner circumferential surface 2a of the drum part 2 in a state before it is fit in the drum part 2 by length of 0.05 mm or more and 0.4 mm or less, and scrape the inner circumferential surface 2a by bending when it is fit in the drum part 2. A conductive grease is applied to a part where the projecting end 5a contacts with the inner circumferential surface 2a after it is fit in the drum part 2. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供一种能够确保管材与导电板之间的导电性的感光鼓。 电解质感光鼓包括：感光鼓1，其通过在铝管的外圆周表面上形成感光层; 第一绝缘凸缘部分3; 第二绝缘凸缘部7; 以及固定在第一凸缘部3的侧面的导电性弹性部件5，并且形成有将筒部的内周面按压的突出端部5a和与贯通的支撑轴4相接触的滑动部 第一绝缘凸缘部分中的孔。 突出端部5a形成为从鼓部2的内周面2a突出的状态，在其被配合在鼓部2中的状态为0.05mm以上且0.4mm以下，并且将内侧 周面2a通过在装配在鼓部2中时的弯曲而被弯曲。导电油脂在被配合到鼓部2中之后被施加到突出端5a与内周面2a接触的部分。版权所有： （C）2009，JPO＆INPIT

公开(公告)号：JP2006251073A

公开(公告)日：2006-09-21

申请号：JP2005064321

申请日：2005-03-08

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： TORIYAMA KOICHI ,  FUKUSHIMA KOUTARO ,  ARIMURA TAKUYA

IPC: G03G5/06

Abstract: PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor which has satisfactory electrical characteristics in various environments and in which mechanical durability and electrical durability are made compatible with each other. SOLUTION: The charge transport layer of the electrophotographic photoreceptor is comprised of two layers containing the enamine compound expressed by General Formula (1). The elastic power ηHU when the indentation maximum load 5 mN is loaded for 5 seconds in the environment of temperature 25°C of the surface side charge transport layer provided on the surface side facing outward and relative humidity 50% is ≥47.0% and the elastic power ηHU of the charge generating layer side charge transport layer provided on the charge generating layer side is ≤46.0%. COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种在各种环境下具有令人满意的电气特性并使其机械耐久性和电气耐久性彼此兼容的电子照相感光体。 电解质感光体的电荷输送层由含有通式（1）表示的烯胺化合物的两层构成。 在设置在面向外部和相对湿度50％的表面侧电荷输送层的温度25℃的环境中，当压痕最大负载5mN负载5秒时，弹性功率ηHU ≥47.0％，并且设置在电荷产生层侧的电荷产生层侧电荷输送层的弹性功率ηHU≤46.0％。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2006084851A

公开(公告)日：2006-03-30

申请号：JP2004270228

申请日：2004-09-16

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： ARIMURA TAKUYA ,  KADOI MIKIO ,  FUJITA SAYAKA ,  TORIYAMA KOICHI

IPC: G03G5/047 ,  C07C211/57 ,  C07C217/84 ,  G03G5/06

Abstract: PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of preventing the occurrence of edge fog independently of a process mechanism. SOLUTION: In the image forming apparatus 1 adopting a reversal development system, an electrophotographic photoreceptor 2 having a photosensitive layer whose ionization potential (Ip) is ≥5.50 eV is used, whereby, for example, when the electrophotographic photoreceptor 2 is negatively charged by a charger 29 to which a negative voltage has been applied, an electrostatic latent image formed by exposure is developed with a negatively charged toner to form a toner image, and this toner image is transferred onto recording paper 23 with a transfer roll 31 to which a positive bias voltage has been applied to form an objective image, the amount of positive charges injected from the transfer roll 31 into a part of the electrophotographic photoreceptor 2 brought into direct contact with the transfer roll 31 can be reduced. The occurrence of edge fog can be therefore prevented in continuous image formation on front-back both sides of two or more sheets of recording paper 23. COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种能够独立于处理机构防止边缘雾的发生的图像形成装置。 解决方案：在采用反转显影系统的图像形成装置1中，使用具有电离电位（Ip）≥5.50eV的感光层的电子照相感光体2，例如当电子照相感光体2为负 由已经施加了负电压的充电器29充电，通过曝光形成的静电潜像用带负电的调色剂显影以形成调色剂图像，并且将该调色剂图像用转印辊31转印到记录纸23上 已经施加正偏置电压以形成目标图像，可以减少从转印辊31注入到与转印辊31直接接触的电子照相感光体2的一部分的正电荷的量。 因此，可以防止在两张或更多张记录纸23的前后两侧连续成像的边缘雾的发生。（C）2006，JPO＆NCIPI

公开(公告)号：JP2006039528A

公开(公告)日：2006-02-09

申请号：JP2005183504

申请日：2005-06-23

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： UCHINO AKIKO ,  FUKUSHIMA KOUTARO ,  ARIMURA TAKUYA

IPC: G03G5/14

Abstract: PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor having good electric properties such as chargeability, sensitivity and responsibility, having good oxidizing gas resistance, and having good property stability in that the good electric properties thereof do not worsen in repeated use and to provide an image forming apparatus provided with the same. SOLUTION: An undercoat layer 12 is provided between the conductive support 11 and the photosensitive layer 15 of the electrophotographic photoreceptor 1, and the undercoat layer 12 contains an amine compound expressed by general formula (1) added thereto. In the formula, R 1 and R 2 denote aryl groups, heterocyclic groups, aralkyl groups, alkyl groups, cycloalkyl groups, or heterocycloalkyl groups which respectively may have substituents; R 3 denotes an aralkyl group, alkyl group, cycloalkyl group, or hydrogen atom which may have a substituent. COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：提供具有良好的电性能，如带电性，灵敏度和责任性的具有良好的耐氧化气体性的电子照相感光体，并具有良好的性能稳定性，因为其良好的电性能在反复使用中不会恶化， 以提供具有该图像形成装置的图像形成装置。 解决方案：在电子照相感光体1的导电性支持体11和感光层15之间设置底涂层12，底涂层12含有通过通式（1）表示的胺化合物。 式中，R SB 1和R SB 2分别表示可以具有取代基的芳基，杂环基，芳烷基，烷基，环烷基或杂环烷基; R“3”表示可以具有取代基的芳烷基，烷基，环烷基或氢原子。 版权所有（C）2006，JPO＆NCIPI