公开(公告)号：JP2005195961A

公开(公告)日：2005-07-21

申请号：JP2004003143

申请日：2004-01-08

Applicant: Ricoh Co Ltd ,  株式会社リコー

Inventor： KAMI HIDETOSHI ,  TODA NAOHIRO ,  KAWASAKI YOSHIAKI ,  KONDO MAIKO ,  KITAJIMA RYOICHI ,  KOJIMA SHIGETO ,  NAGAME HIROSHI

IPC: G03G5/147 ,  G03G5/047 ,  G03G5/05 ,  G03G5/06 ,  G03G5/07 ,  G03G5/14

CPC classification number: G03G5/0668 ,  G03G5/0575 ,  G03G5/0592 ,  G03G5/0614 ,  G03G5/0616 ,  G03G5/0679 ,  G03G5/14708 ,  G03G5/14769 ,  G03G5/14791 ,  G03G5/14795

Abstract: PROBLEM TO BE SOLVED: To provide a photoreceptor having superior wear resistance, to provide a photoreceptor which contributes to reduce photoreceptor replacement frequency in an electrophotographic apparatus and has superior releasability, to provide a long-lifetime image forming engine which causes little damage to members which come into contact with a photoreceptor around the photoreceptor, and to provide a photoreceptor, whose manufacturing cost is low and whose initial cost is low so that it can be widely supplied to a market, and to provide a photoreceptor which ensures a low printing cost per sheet. SOLUTION: In an electrophotographic photoreceptor obtained by stacking a photoreceptor top surface layer containing a cross-linkable binder resin on the photoreceptor, in which a photosensitive layer comprising a charge generating layer containing a charge generating component and a charge transport layer containing a charge transport component is formed on a conductive support directly or across an undercoat layer, the photoreceptor top surface layer has neither hydroxyl group nor residual uncured moiety. COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：为了提供具有优异耐磨性的感光体，提供有助于降低电子照相设备中的感光体更换频率并且具有优异的脱模性的感光体，以提供几乎不产生损伤的长寿命图像形成引擎 涉及与感光体周围的感光体接触的构件，并且提供制造成本低且初始成本低的感光体，从而可以广泛地供应到市场，并提供确保低的感光体 每张打印成本。 解决方案：在通过将包含可交联粘合剂树脂的感光体顶表面层堆叠在感光体上而获得的电子照相感光体中，其中包含含有电荷产生组分的电荷产生层的感光层和含有 电荷传输组分直接或穿过底涂层形成在导电载体上，感光体表面层既不具有羟基也不具有残留的未固化部分。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2005141219A

公开(公告)日：2005-06-02

申请号：JP2004318449

申请日：2004-11-01

Applicant: Samsung Electronics Co Ltd ,  三星電子株式会社

Inventor： GRAZULEVICIUS JUOZAS V ,  BUIKA T GINTARAS ,  JANKAUSKAS VYGINTAS ,  GAIDELIS VALENTAS ,  RUTA BUDRECKIENE ,  TOKARSKI ZBIGNIEW ,  JUBRAN NUSRALLAH

IPC: C07C251/86 ,  C07D209/86 ,  G03G5/06 ,  G03G9/12

CPC classification number: G03G5/0614 ,  C07D209/86 ,  G03G5/0616 ,  G03G5/0618 ,  G03G5/0629

Abstract: PROBLEM TO BE SOLVED: To provide a charge transport material having excellent electrostatic properties such as a high accommodation voltage and a low discharge voltage, an organophotoreceptor with the charge transport material, an electrophotographic image forming apparatus with the organophotoreceptor, and an electrophotographic image forming method using the organophotoreceptor. SOLUTION: The organophotoreceptor comprises an electrically conductive substrate and a photoconductive element on the electrically conductive substrate, wherein the photoconductive element comprises a charge transport material having the formula 1 and a charge generating compound. In the formula 1, R 1 and R 2 are, independently, H, an alkyl group, an alkaryl group or an aryl group; X is a branched or linear linking group having formula -(CH 2 ) m -; V comprises a vinyl ether group; and Z comprises an arylamine group. COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：为了提供具有优良静电特性如高调节电压和低放电电压的电荷传输材料，具有电荷传输材料的有机光感受器，具有有机光感受器的电子照相成像设备和电子照相感光体 使用有机光感受器的成像方法。 有机光感受器包括在导电衬底上的导电衬底和光电导元件，其中光电导元件包括具有式1的电荷传输材料和电荷产生化合物。 在式1中，R SB 1和R SB 2独立地是H，烷基，烷芳基或芳基; X是具有式 - （CH 2 SB 2）的支链或线性连接基团。 V包括乙烯基醚基团; Z包含芳基胺基。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2004359681A

公开(公告)日：2004-12-24

申请号：JP2004162315

申请日：2004-05-31

Applicant: Samsung Electronics Co Ltd ,  三星電子株式会社

Inventor： JUBRAN NUSRALLAH ,  TOKARSKI ZBIGNIEW ,  LAW KAM W ,  GETAUTIS VYTAUTAS ,  SIDARAVICIUS JONAS ,  PALIULIS OSVALDAS ,  GAIDELIS VALENTAS ,  JANKAUSKAS VYGINTAS

IPC: G03G5/047 ,  C07C251/86 ,  C07D209/86 ,  C07D263/58 ,  C07D455/04 ,  C07D471/06 ,  G03G5/05 ,  G03G5/06

CPC classification number: C07D263/58 ,  C07C251/86 ,  C07D209/86 ,  C07D455/04 ,  G03G5/0614 ,  G03G5/0616 ,  G03G5/0625 ,  G03G5/0629 ,  G03G5/0637 ,  G03G5/0642 ,  G03G5/0646 ,  G03G5/065 ,  G03G5/0661

Abstract: PROBLEM TO BE SOLVED: To provide a new charge transport compound, to provide an organic photoreceptor containing the same, and to provide an electrophotographic image formation method using the same. SOLUTION: The charge transport compound has a plurality of hydrazone-bridged heterocyclic groups connected by a central bridging group. An example of the charge transport compound is represented by the chemical formula (wherein R is selected from the group consisting of julolidine groups, carbazole ring groups, and (N,N-disubstituted) arylamine groups; and Q comprises an aromatic hydazone linking group). COPYRIGHT: (C)2005,JPO&NCIPI

公开(公告)号：JP2004334125A

公开(公告)日：2004-11-25

申请号：JP2003133352

申请日：2003-05-12

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： KONDO AKIHIRO ,  OBATA TAKATSUGU ,  ISHIDA KAZUYA

IPC: C07C211/54 ,  C07C211/57 ,  C07D231/12 ,  C07D307/81 ,  G03G5/06 ,  G03G5/14

CPC classification number: C07D311/58 ,  C07C211/58 ,  C07C211/61 ,  C07C2603/24 ,  C07D207/34 ,  C07D209/86 ,  C07D209/88 ,  C07D219/02 ,  C07D233/88 ,  C07D263/58 ,  C07D277/64 ,  C07D307/52 ,  C07D307/66 ,  C07D307/82 ,  C07D333/20 ,  C07D333/36 ,  C07D335/20 ,  G03G5/0612 ,  G03G5/0614 ,  G03G5/0616 ,  G03G5/0666

Abstract: PROBLEM TO BE SOLVED: To provide an organic photoconductive material capable of realizing an electrophotographic photoreceptor of high reliability which has high electrification potential, high sensitivity, sufficient photo-responsiveness, excellent durability, and no decrease in these characteristics even when the photoreceptor is used in a low temperature environment or in a high-speed process or subjected to exposure to light, and to provide an electrophotographic photoreceptor and an image forming apparatus using the above material. SOLUTION: The image forming apparatus is constituted by loading the electrophotographic photoreceptor on it, and the electrophotographic photoreceptor is manufactured by containing an organic photoconductive material expressed by general formula (1) as a charge transport substance into the photosensitive layer. COPYRIGHT: (C)2005,JPO&NCIPI

公开(公告)号：JP3582686B2

公开(公告)日：2004-10-27

申请号：JP18661797

申请日：1997-07-11

Applicant: 富士電機ホールディングス株式会社

Inventor： 芳昌 富内 ,  健司 川手 ,  純孝 野上 ,  修 鍋田

IPC: G03G5/06

CPC classification number: G03G5/0616 ,  G03G5/0614

公开(公告)号：JP2004258408A

公开(公告)日：2004-09-16

申请号：JP2003049975

申请日：2003-02-26

Applicant: Ricoh Co Ltd ,  株式会社リコー

Inventor： SHIMADA TOMOYUKI ,  IKEGAMI TAKAAKI ,  SUZUKI YASUO

IPC: G03G5/06 ,  G03G5/07 ,  G03G5/147

CPC classification number: G03G5/075 ,  G03G5/0614 ,  G03G5/0616 ,  G03G5/0666 ,  G03G5/0668 ,  G03G5/0672 ,  G03G5/076 ,  G03G5/078

Abstract: PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor which has high durability even in long-term repetitive use, suppresses image degradation due to lowering of image density or image blurring, and stably yields an image of high image quality. SOLUTION: In the electrophotographic photoreceptor in which a photosensitive layer is disposed on a conductive support, the photosensitive layer contains a compound having at least one substituted or unsubstituted alkylamino group and a charge transport material, wherein relation of the expression: Eox1-Eox2≥-0.2 is established between the oxidation potential (Eox1) of the compound having the alkylamino group and the oxidation potential (Eox2) of the charge transport material. COPYRIGHT: (C)2004,JPO&NCIPI

公开(公告)号：JP2004151725A

公开(公告)日：2004-05-27

申请号：JP2003367665

申请日：2003-10-28

Applicant: Samsung Electronics Co Ltd ,  三星電子株式会社

Inventor： TOKARSKI ZBIGNIEW ,  MONTRIMAS EDMUNDAS ,  PAULAUSKAITE INGRIDA ,  LAW KAM W ,  JUBRAN NUSRALLAH ,  GAIDELIS VALENTAS ,  JANKAUSKAS VYGINTAS ,  GETAUTIS VYTAUTAS

IPC: G03G5/047 ,  C07C251/86 ,  G03G5/06 ,  G03G9/12

CPC classification number: C07D209/86 ,  C07C251/86 ,  G03G5/06 ,  G03G5/0616 ,  G03G5/0618 ,  Y10S430/103

Abstract: PROBLEM TO BE SOLVED: To provide a charge transfer compound having a hydrazone group, an organic photoreceptor containing the charge transfer compound, an apparatus for forming an electrophotographic picture containing the organic photoreceptor and a method for forming the electrophotographic picture using the apparatus. SOLUTION: The organic photoreceptor contains a photoconductive layer comprising a novel charge transfer compound having the chemical formula (1) and a charge generation compound and one or more photoconductive layers are located on the conductive substrate. In the chemical formula (1), R 1 is carbazole group, julolidine group or p-(N,N-disubstituted) allyl amine, R 2 , R 3 , R 4 , R 5 and R 6 are independently alkyl group or allyl group, R 7 and R 8 are independently H, alkyl group or allyl group, X is O, S or NR' group, R' is H, alkyl or allyl group and Y is allyl group. COPYRIGHT: (C)2004,JPO

公开(公告)号：JP2004133469A

公开(公告)日：2004-04-30

申请号：JP2003350935

申请日：2003-10-09

Applicant: Samsung Electronics Co Ltd ,  三星電子株式会社

Inventor： YOKOTA SABURO ,  LEE HWAN-KOO ,  YON KYUNG-YOL

IPC: G03G5/04 ,  C07C211/54 ,  C07C255/23 ,  G03G5/047 ,  G03G5/05 ,  G03G5/06 ,  G03G5/07 ,  G03G5/14 ,  G03G5/147

CPC classification number: G03G5/076 ,  G03G5/047 ,  G03G5/051 ,  G03G5/056 ,  G03G5/0564 ,  G03G5/06 ,  G03G5/0605 ,  G03G5/0607 ,  G03G5/0609 ,  G03G5/0614 ,  G03G5/0616 ,  G03G5/0672 ,  G03G5/073 ,  G03G5/14795

Abstract: PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor for wet development and an electrophotographic image forming apparatus including the same. SOLUTION: The photoreceptor comprises a conductive support and an organic photosensitive layer formed on the conductive support, wherein the surface layer of the organic photosensitive layer comprises: at least a binder resin comprising a high molecular compound; and a charge transport material comprising a low molecular compound, and the oxygen gas permeability coefficient of the surface layer is adjusted to ≤5×10 -13 cm 3 (STP) cm/s cm 2 cmHg. The photoreceptor is excellent in resistance to a liquid developer used in a wet developing process and assures good image properties. COPYRIGHT: (C)2004,JPO

公开(公告)号：JPS61107248A

公开(公告)日：1986-05-26

申请号：JP22767384

申请日：1984-10-31

Applicant: Canon Inc

Inventor： ISHIKAWA SHOZO ,  FUJIMURA NAOTO

IPC: G03G5/04 ,  G03G5/047 ,  G03G5/06 ,  G03G5/14

CPC classification number: G03G5/0679 ,  G03G5/0616

Abstract: PURPOSE:To improve the electrophotographic characteristics by successively laminating a charge transferring layer having positive hole transferring action and a charge generating layer contg. a photoconductive azo pigment and a specified charge transferring material having positive hole transferring action on an electrically conductive support. CONSTITUTION:An azo pigment having a phenolic OH group is used as a photoconductive azo pigment used in a charge generating layer, and an azo pigment represented by formula I is especially effective. In the formula, l=2 or 3, A is a bivalent org. group forming a conjugated double bond system between carbon atoms having a bonded azo group, and B is a coupler having a phenolic OH group. A hydrazone type charge transferring material is used as a specified positive hoe transferring material used in the charge generating layer, and a material represented by formula II is especially preferable. In the formula, D is a phenyl group which may have a substituent other than a substituted amino group or a carbazolyl group which may have a substituent but is not N-substituted.

Abstract translation: 目的：通过连续地层叠具有空穴传输作用的电荷转移层和电荷产生层来改善电摄影特性。 光导性偶氮颜料和在导电性载体上具有空穴转移作用的规定的电荷转移材料。 构成：使用具有酚类OH基团的偶氮颜料作为电荷产生层中使用的感光性偶氮颜料，由式I表示的偶氮颜料是特别有效的。 在公式中，l = 2或3，A是二价组织。 在具有键合偶氮基的碳原子之间形成共轭双键体系，B是具有酚OH基团的成色剂。 使用腙型电荷转移材料作为在电荷产生层中使用的特定的正锄头转印材料，并且由式II表示的材料是特别优选的。 在该式中，D是可以具有取代基以外的取代基或可以具有取代基而不是N-取代的咔唑基的取代基的苯基。

公开(公告)号：JPS617840A

公开(公告)日：1986-01-14

申请号：JP12855584

申请日：1984-06-21

Applicant: Minolta Camera Co Ltd

Inventor： UEDA HIDEAKI

IPC: C09B26/02 ,  G03G5/04 ,  G03G5/06 ,  H01L51/42

CPC classification number: G03G5/0616

Abstract: PURPOSE:To obtain a photosensitive body having high sensitivity and maintaining superior stability and low residual potential even after repeated use by incorporating a specified hydrazone compound into a photosensitive layer together with photoconductive phthalocyanine powder. CONSTITUTION:The photosensitive body having high sensitivity and superior durability, undergoing little change in the surface potential, and accumulating hardly residual potential is obtd. by forming a single photosensitive layer contg. a hydrazone compound represented by the formula [where each of X and Y is H, lower alkyl, OCH3 or OC2H5, Z is lower alkyl, benzyl, lower alkoxy, phenoxy or benzyloxy, Z' is H, alkyl or alkoxy, R is lower alkyl, (substituted) aryl or benzyl, and the substituent is relatively lower alkoxy or the like] and photoconductive phthalocyanine particles dispersed in a binder. A laminate type photosensitive layer consisting of a charge generating layer contg. photoconductive phthalocyanine particles and a charge transferring layer contg. said hydrazone compound may be formed in place of said single photosensitive layer.

Abstract translation: 目的：为了获得具有高灵敏度的感光体，并且即使在重复使用后，通过将特定的腙化合物与光导性酞菁粉末一起并入光敏层中，仍然具有优异的稳定性和低的残留电位。 构成：具有高灵敏度和优异的耐久性，几乎没有表面电位变化并且几乎没有残留电位的感光体。 通过形成单个光敏层。 由下式表示的腙化合物[其中X和Y各自为H，低级烷基，OCH 3或OC 2 H 5，Z为低级烷基，苄基，低级烷氧基，苯氧基或苄氧基，Z'为H，烷基或烷氧基，R为低级 烷基，（取代的）芳基或苄基，并且取代基是相对低级的烷氧基等]和分散在粘合剂中的光导酞菁颗粒。 层叠型感光层，由感光层 光电导酞菁颗粒和电荷转移层 可以形成所述腙化合物代替所述单一感光层。