公开(公告)号：US20190094723A1

公开(公告)日：2019-03-28

申请号：US16059292

申请日：2018-08-09

Applicant: Konica Minolta, Inc.

Inventor： Kazuhiro KURAMOCHI

IPC: G03G5/043 ,  G03G5/05 ,  G03G5/10

Abstract: An image forming method forms an image by performing charging, exposing, developing, and transferring in a rotation direction of a rotationally driven photoreceptor, wherein the charging is performed by a roller charging method, exposing a surface of the photoreceptor to light and eliminating charges on the surface of the photoreceptor are included between the developing and the transferring, the photoreceptor includes at least a charge transporting layer and a protective layer laminated on the charge transporting layer on a conductive support, and energy of light for irradiation in the exposing the surface of the photoreceptor to light is in a range of 0.0001 to 500 μW/mm2 on the surface of the photoreceptor.

公开(公告)号：US20170131645A1

公开(公告)日：2017-05-11

申请号：US15345993

申请日：2016-11-08

Applicant: Konica Minolta, Inc.

Inventor： Seisuke MAEDA ,  Kazunori KURIMOTO ,  Kazuhiro KURAMOCHI

IPC: G03G15/00

CPC classification number: G03G5/14717 ,  G03G5/047 ,  G03G5/0507 ,  G03G5/0517 ,  G03G5/14704 ,  G03G5/14708 ,  G03G5/14791

Abstract: Provided is an electrographic photoconductor resistant to surface discharge and having good wear resistance. The electrographic photoconductor has a conductive support and a photosensitive layer disposed on the conductive support, the photosensitive layer containing a charge generation material and a charge transport material. A layer forming the surface of the electrographic photoconductor contains a resin binder forming the layer and a layered carbide dispersed in the resin binder. The layer forming the surface has a light transmittance in the range of 20 to 98% at a wavelength of 350 to 800 nm.

公开(公告)号：US20180164710A1

公开(公告)日：2018-06-14

申请号：US15837586

申请日：2017-12-11

Applicant: KONICA MINOLTA, INC.

Inventor： Kazuhiro KURAMOCHI ,  Seisuke MAEDA ,  Kuniaki KASHIWAKURA

IPC: G03G15/00 ,  G03G15/02

CPC classification number: G03G15/0233 ,  G03G5/147 ,  G03G5/14704 ,  G03G5/14726 ,  G03G5/14734

Abstract: An electrophotographic image forming apparatus includes: an electrophotographic photosensitive body including an electroconductive substrate, and a charge generating layer, a charge transfer layer and a surface protective layer laminated on the substrate in this order, and a charging roller for causing contact electrification on the surface of the electrophotographic photosensitive body, wherein at least the surface protective layer contains inorganic microparticles having a fluorine compound on the surfaces and a binder resin, and the surface of the charging roller has a maximum height roughness Rz≤0.5 μm.

公开(公告)号：US20180143545A1

公开(公告)日：2018-05-24

申请号：US15819597

申请日：2017-11-21

Applicant: Konica Minolta, Inc.

Inventor： Seisuke MAEDA ,  Kazunori KURIMOTO ,  Kazuhiro KURAMOCHI

IPC: G03G5/087 ,  G03G15/00 ,  G03G5/047

CPC classification number: G03G5/087 ,  G03G5/14704 ,  G03G5/14708 ,  G03G5/14726 ,  G03G15/75

Abstract: In an electrophotographic photoreceptor, an electric charge generating layer and an electric charge transport layer are laminated on a conductive support body in this order, a layer configuring an outermost surface of the electrophotographic photoreceptor contains composite structure particles in which a core material is inorganic particles, and the inorganic particles are coated with tin oxide doped with aluminum, and an average particle diameter of primary particles of the composite structure particles is 50 nm to 200 nm.

公开(公告)号：US20190212670A1

公开(公告)日：2019-07-11

申请号：US16235450

申请日：2018-12-28

Applicant: Konica Minolta, Inc.

Inventor： Takeshi ISHIDA ,  Kazuhiro KURAMOCHI ,  Seisuke MAEDA

IPC: G03G15/043 ,  G03G15/08 ,  G03G15/16 ,  G03G21/06 ,  G03G5/147

CPC classification number: G03G15/043 ,  G03G5/047 ,  G03G5/14708 ,  G03G15/0898 ,  G03G15/161 ,  G03G21/06

Abstract: An image forming apparatus includes: a transferer that transfers a toner image formed on a surface of a photo-conductor onto an image carrier; and an irradiator that irradiates the surface of the photo-conductor before transfer with light such that a potential of an image area where the toner image has been formed and a potential of a non-image area where the toner image has not been formed in the photo-conductor before transfer satisfy formula (1): 0≤|Va|−|Vb|≤200 [V]  (1) where |Va| represents the potential of the image area after the surface of the photo-conductor before transfer is irradiated with light, and |Vb| represents the potential of the non-image area after the surface of the photo-conductor before transfer is irradiated with light.

公开(公告)号：US20180335707A1

公开(公告)日：2018-11-22

申请号：US15966797

申请日：2018-04-30

Applicant: Konica Minolta, Inc.

Inventor： Seisuke MAEDA ,  Kazunori KURIMOTO ,  Kazuhiro KURAMOCHI

IPC: G03G5/043

CPC classification number: G03G5/043

Abstract: An electrophotographic photoreceptor has a charge generating layer, a charge transporting layer, and an outermost surface layer laminated in this order on a conductive support, wherein the outermost surface layer contains composite structural particles obtained by coating inorganic particles with oxygen-deficient conductive tin oxide, and the composite structural particles have an L value of 80 to 95, and primary particles thereof have an average particle diameter of 35 to 200 nm.

公开(公告)号：US20160282735A1

公开(公告)日：2016-09-29

申请号：US15074350

申请日：2016-03-18

Applicant: Konica Minolta, Inc.

Inventor： Seisuke MAEDA ,  Kazuhiro KURAMOCHI

IPC: G03G5/147

CPC classification number: G03G5/14734 ,  G03G5/14704 ,  G03G5/14726

Abstract: Provided is an electrophotographic photoreceptor containing a conductive support having thereon a photosensitive layer and a surface layer laminated in that order, wherein the surface layer contains a conductive filler having a number average primary particle size of 10 to 500 nm in a resin; and the conductive filler is treated with a surface treatment agent containing a fluoroalkyl (meth)acrylate/(meth)acrylic acid copolymer.

Abstract translation: 本发明提供一种电子照相感光体，其含有导电性支持体，其上具有光敏层和表层，其顺序层叠，其中，表面层含有树脂中数均一次粒径为10〜500nm的导电性填料; 并用含有（甲基）丙烯酸氟烷基酯（甲基）丙烯酸共聚物的表面处理剂处理导电填料。