公开(公告)号：US20180356744A1

公开(公告)日：2018-12-13

申请号：US16000674

申请日：2018-06-05

申请人： KYOCERA Document Solutions Inc.

发明人： Tomofumi SHIMIZU

IPC分类号： G03G5/06

CPC分类号： G03G5/0618 ,  G03G5/0507 ,  G03G5/0564 ,  G03G5/0603 ,  G03G5/0607 ,  G03G5/0609 ,  G03G5/0614 ,  G03G5/0616 ,  G03G5/0631 ,  G03G5/0638 ,  G03G5/0642 ,  G03G5/0648 ,  G03G5/0651

摘要： An electrophotographic photosensitive member includes a conductive substrate and a photosensitive layer having a single-layer structure. The photosensitive layer contains a charge generating material, an electron transport material, a polycarbonate resin, and a hole transport material. The electron transport material includes a compound having a halogen atom and represented by general formula (1), (2), (3), (4), or (5). The hole transport material includes a compound represented by general formula (20), (21), (22), (23), (24), (25), (26), or (27). A charge of calcium carbonate as measured by charging the calcium carbonate through friction with the photosensitive layer is at least +6.5 μC/g. A Vickers hardness of the photosensitive layer at 45° C. is at least 17.0 HV.

公开(公告)号：US20180081286A1

公开(公告)日：2018-03-22

申请号：US15450162

申请日：2017-03-06

申请人： FUJI XEROX CO., LTD.

发明人： Akihiro KAWASAKI

IPC分类号： G03G15/00 ,  G03G5/047

CPC分类号： G03G5/047 ,  G03G5/0564 ,  G03G5/0607 ,  G03G5/0618 ,  G03G5/062 ,  G03G5/14791 ,  G03G5/14795 ,  G03G21/18

摘要： An electrophotographic photoreceptor includes a conductive substrate and a photosensitive layer disposed on the conductive substrate which serves as an outermost surface of the electrophotographic photoreceptor. The electrophotographic photoreceptor satisfies YC−YA≧0.1 MPa, YC−YB≧0.1 MPa, and YC≦4.5 MPa, where YA, YB, and YC (MPa) represent the Young's moduli of a surface of the photosensitive layer determined by nanoindentation at an indentation depth of 500 nm at end portions A and B extending from a position 10 mm to a position 70 mm from the respective edges of the photosensitive layer toward the center of the photosensitive layer in an axial direction of the electrophotographic photoreceptor and a central portion C extending from a position 20 mm in front of and to a position 20 mm behind the center of the photosensitive layer in the axial direction of the electrophotographic photoreceptor, respectively.

公开(公告)号：US20180052401A1

公开(公告)日：2018-02-22

申请号：US15446629

申请日：2017-03-01

申请人： FUJI XEROX CO., LTD.

发明人： Yoshiteru YAMADA ,  Yohei SAITO

IPC分类号： G03G15/00 ,  G03G5/047

CPC分类号： G03G5/047 ,  G03G5/06 ,  G03G5/0607 ,  G03G5/0614 ,  G03G5/0618 ,  G03G5/0672 ,  G03G5/0696 ,  G03G21/18

摘要： An electrophotographic photosensitive member includes a conductive base, and a single-layer photosensitive layer disposed directly on the conductive base and containing a charge generation material. A difference between a work function of the conductive base and an electron affinity of the charge generation material is in a range of from about −0.1 to about +0.1 eV. A difference between a current Ia and a current Ib is in a range of from about 5.5×10−8 to about 9.2×10−8 [A/cm2] when a gold electrode is provided on the photosensitive layer, where the current Ia is a current when an electric field is applied by applying a voltage so that the gold electrode becomes positive, and the current Ib is a current when an electric field is applied by applying a voltage so that the conductive base becomes positive.

公开(公告)号：US20180052400A1

公开(公告)日：2018-02-22

申请号：US15450136

申请日：2017-03-06

申请人： FUJI XEROX CO., LTD.

发明人： Yu NAKAMURA

IPC分类号： G03G15/00 ,  G03G5/043

CPC分类号： G03G5/0614 ,  G03G5/06 ,  G03G5/0607 ,  G03G5/0618 ,  G03G5/0668 ,  G03G5/0672

摘要： An electrophotographic photoreceptor includes a conductive substrate and a single-layer-type photosensitive layer on the conductive substrate. The single-layer-type photosensitive layer contains a binder resin, a charge generating material, an electron transporting material, and two hole transporting materials having different redox potentials. The two hole transporting materials are a hole transporting material A and a hole transporting material B that has a redox potential lower than that of the hole transporting material A. The ratio A/B of a weight of the hole transporting material A to a weight of the hole transporting material B is about 12/1 or more and about 36/1 or less.

公开(公告)号：US09846378B2

公开(公告)日：2017-12-19

申请号：US15207687

申请日：2016-07-12

申请人： FUJI XEROX CO., LTD.

发明人： Masahiro Iwasaki

IPC分类号： G03G5/00 ,  G03G5/14 ,  G03G5/10 ,  G03G5/06 ,  G03G5/05 ,  G03G21/18

CPC分类号： G03G5/142 ,  G03G5/0564 ,  G03G5/0607 ,  G03G5/0609 ,  G03G5/0612 ,  G03G5/0614 ,  G03G5/0618 ,  G03G5/0672 ,  G03G5/0696 ,  G03G5/10 ,  G03G5/102 ,  G03G15/75 ,  G03G21/18

摘要： An electrophotographic photoreceptor includes a conductive substrate including an outer peripheral surface treated with a silazane; and a photosensitive layer on the outer peripheral surface of the conductive substrate. The photosensitive layer includes a charge generating material and a charge transporting material.

公开(公告)号：US20170285498A1

公开(公告)日：2017-10-05

申请号：US15622843

申请日：2017-06-14

申请人： MITSUBISHI CHEMICAL CORPORATION

发明人： Atsushi YOSHIZAWA ,  Wataru MIYASHITA ,  Mitsuo WADA ,  Akiteru FUJII ,  Takayuki SHOUDA

IPC分类号： G03G5/06 ,  G03G5/047 ,  G03G5/05 ,  G03G5/14 ,  G03G15/00 ,  G03G5/10

CPC分类号： G03G5/0614 ,  G03G5/047 ,  G03G5/0542 ,  G03G5/056 ,  G03G5/0564 ,  G03G5/0603 ,  G03G5/0605 ,  G03G5/0607 ,  G03G5/0609 ,  G03G5/0616 ,  G03G5/0629 ,  G03G5/0637 ,  G03G5/0651 ,  G03G5/0657 ,  G03G5/0668 ,  G03G5/0672 ,  G03G5/0696 ,  G03G5/102 ,  G03G5/142 ,  G03G15/75 ,  G03G2215/00957

摘要： The present invention relates to an electrophotographic photoreceptor comprising: a conductive support; and a photosensitive layer on the conductive support, wherein the photosensitive layer contains a charge transport substance, a binder resin, and a compound which has a molecular weight of equal to or less than 350, and is represented by General Formula (1).

公开(公告)号：US20160091806A1

公开(公告)日：2016-03-31

申请号：US14869364

申请日：2015-09-29

申请人： Mitsubishi Chemical Corporation

发明人： Akiteru FUJII

IPC分类号： G03G5/06 ,  G03G5/047 ,  G03G5/05

CPC分类号： G03G5/047 ,  G03G5/0525 ,  G03G5/056 ,  G03G5/0605 ,  G03G5/0607 ,  G03G5/0614 ,  G03G5/0696

摘要： The invention provides an image forming apparatus and an electrophotographic photoreceptor, comprising: a conductive support; and at least a charge generation layer and a charge transport layer on the conductive support, wherein said charge generation layer contains a hydroxygallium phthalocyanine synthesized using a halogen solvent, said charge transport layer contains a polyester resin having a specific structural unit, and said charge transport layer is formed using a non-halogen solvent.

公开(公告)号：US09298115B2

公开(公告)日：2016-03-29

申请号：US14263908

申请日：2014-04-28

申请人： CANON KABUSHIKI KAISHA

发明人： Junpei Kuno ,  Takeshi Murakami ,  Tsutomu Nishida ,  Masataka Kawahara ,  Kaname Watariguchi

IPC分类号： G03G5/04 ,  G03G5/06 ,  G03G5/05

CPC分类号： G03G5/0696 ,  G03G5/0542 ,  G03G5/0603 ,  G03G5/0607 ,  G03G5/0609 ,  G03G5/0612

摘要： In an electrophotographic photosensitive member including a charge-generating layer, the charge-generating layer has a matrix-domain structure; in the matrix-domain structure, the domain contains a charge-generating substance, and the matrix contains a binder resin and a fluoranthene compound.

摘要翻译： 在包含电荷产生层的电子照相感光构件中，电荷产生层具有矩阵域结构; 在基质结构域中，该结构域含有电荷产生物质，该基体含有粘合剂树脂和荧蒽化合物。

公开(公告)号：US20150268567A1

公开(公告)日：2015-09-24

申请号：US14475799

申请日：2014-09-03

申请人： FUJI XEROX CO., LTD.

发明人： Masahiro IWASAKI

IPC分类号： G03G15/00

CPC分类号： G03G5/0618 ,  G03G5/0517 ,  G03G5/0603 ,  G03G5/0605 ,  G03G5/0607 ,  G03G5/0609

摘要： An electrophotographic photoreceptor includes a conductive substrate and a single-layered photosensitive layer formed so as to overlie the conductive substrate, the photosensitive layer containing a binder resin, a charge-generating material, a hole-transporting material, an electron-transporting material represented by General Formula (1), and at least one compound selected from a compound represented by General Formula (2) and a compound represented by General Formula (3). The amount of the at least one compound selected from the compound represented by General Formula (2) and the compound represented by General Formula (3) is in the range of approximately 10 parts by weight to 100 parts by weight in total relative to 100 parts by weight of the electron-transporting material represented by General Formula (1).

摘要翻译： 电子照相感光体包括导电性基材和形成为覆盖在导电性基材上的单层感光层，含有粘合剂树脂的感光层，电荷产生材料，空穴传输材料，电子传输材料 通式（1）表示的化合物，以及选自通式（2）表示的化合物和通式（3）表示的化合物中的至少一种化合物。 所述至少一种选自通式（2）表示的化合物和通式（3）表示的化合物的化合物的量相对于100份为约10重量份〜100重量份 的由通式（1）表示的电子传输材料。

公开(公告)号：US08846279B2

公开(公告)日：2014-09-30

申请号：US13783595

申请日：2013-03-04

申请人： Mitsubishi Chemical Corporation

发明人： Akiteru Fujii

IPC分类号： G03G5/06 ,  G03G5/047 ,  G03G5/05

CPC分类号： G03G5/047 ,  G03G5/056 ,  G03G5/0607 ,  G03G5/0609 ,  G03G5/0614 ,  G03G5/0696

摘要： The invention provides a laminate-type electrophotographic photoreceptor for use in a negative charge system, comprising a conductive support, and a photosensitive layer containing a charge generation layer and a charge transport layer, on the conductive support, wherein in addition to a fluorene compound and a diamine compound which are responsible for charge transport, a compound having a specific structure is used in combination.

摘要翻译： 本发明提供一种用于负电荷系统的层叠型电子照相感光体，其包含导电性支持体和在导电性载体上含有电荷产生层和电荷输送层的感光层，其中除了芴化合物和 负责电荷输送的二胺化合物，具有特定结构的化合物组合使用。