公开(公告)号：US20190286016A1

公开(公告)日：2019-09-19

申请号：US16294712

申请日：2019-03-06

Applicant: Konica Minolta, Inc,

Inventor： Toshiki HAYAMI

IPC: G03G15/16

Abstract: An intermediate transfer belt (image carrier) includes a first layer and a surface layer disposed on the first layer and including an inorganic oxide containing an organic component, in which when the surface layer has a layer thickness of A μm and the first layer has a ten-point average roughness of B am, a relationship of 0.25×A≤B is satisfied.

公开(公告)号：US20200249594A1

公开(公告)日：2020-08-06

申请号：US16775309

申请日：2020-01-29

Applicant: KONICA MINOLTA, INC.

Inventor： Toshiki HAYAMI ,  Takeshi MAEYAMA ,  Tomo KITADA ,  Takashi KAWANAGO ,  Daisuke MURAKAMI

IPC: G03G15/16

Abstract: An image forming apparatus includes an image holder, an intermediate transfer body, a transfer member, a pressing force changer, and a hardware processor. The intermediate transfer body includes a base layer and a coating layer provided on the base layer. The image forming apparatus transfers a toner image formed on the image holder to a sheet via the intermediate transfer body, thereby forming an image on the sheet. The transfer member is provided so as to face the image holder with the intermediate transfer body in between and forms a nip part with the image holder. The pressing force changer changes pressing force of the transfer member against the image holder. The hardware processor controls, with the pressing force changer, the pressing force of the transfer member against the image holder based on information on a surface profile of the sheet on which the image is to be formed.

公开(公告)号：US20150160589A1

公开(公告)日：2015-06-11

申请号：US14539156

申请日：2014-11-12

Applicant: Konica Minolta, Inc.

Inventor： Toshiki HAYAMI

IPC: G03G15/00

CPC classification number: G03G15/6594 ,  G03G15/1695 ,  G03G2215/00476 ,  G03G2215/00481 ,  G03G2215/00654 ,  G03G2215/0125 ,  G03G2215/1666

Abstract: An image forming apparatus includes: an image forming unit which forms a toner image on an image carrier; a conveying unit which conveys a recording medium; a transfer unit which transfers the toner image formed on the image carrier to the recording medium conveyed by the conveying unit in a transfer nip; a pre-transfer charging unit which imparts an electrical charge, having a polarity opposite to a normal charge polarity of a toner, to the recording medium conveyed by the conveying unit on an upstream side of the transfer nip in a conveyance direction; and a destaticizing unit which removes a part of the electrical charge that is imparted to a surface of the recording medium by the pre-transfer charging unit and corresponds to unevenness on the surface of the recording medium on an upstream side of the transfer nip in the conveyance direction.

Abstract translation: 图像形成装置包括：图像形成单元，其在图像载体上形成调色剂图像; 传送单元，其传送记录介质; 转印单元，其将形成在所述图像载体上的调色剂图像转印到由所述输送单元在转印辊隙中输送的记录介质; 将具有极性与调色剂的正常充电极性相反的电荷的预转印充电单元传送到在输送方向上在转印辊隙的上游侧由输送单元输送的记录介质; 以及去除单元，其去除通过预转印充电单元赋予记录介质的表面的电荷的一部分，并且对应于在记录介质的表面上的不均匀性，位于转印辊隙的上游侧 运输方向。

公开(公告)号：US20190196367A1

公开(公告)日：2019-06-27

申请号：US16209357

申请日：2018-12-04

Applicant: Konica Minolta, Inc.

Inventor： Toshiki HAYAMI ,  Yoshitada KARIMAI

IPC: G03G15/16 ,  G03G15/00

CPC classification number: G03G15/162 ,  G03G15/161 ,  G03G15/5054 ,  G03G15/5058 ,  G03G2215/00059 ,  G03G2215/1647

Abstract: An intermediate transfer belt (image bearing member) includes a base material layer and a surface layer disposed on the base material layer and including an inorganic oxide containing an organic component. A ten-point average roughness of the surface layer is 69% or more of a wavelength of incident light emitted from a sensor for detecting an amount of toner adhering to the image bearing member and less than 20% of an average particle size of the toner.

公开(公告)号：US20180335717A1

公开(公告)日：2018-11-22

申请号：US15971112

申请日：2018-05-04

Applicant: KONICA MINOLTA, INC.

Inventor： Toshiki HAYAMI

IPC: G03G15/16

CPC classification number: G03G15/169 ,  G03G15/0189 ,  G03G15/18

Abstract: An image formation apparatus includes: a plurality of image formers each of which is provided for each color and forms a toner image; a plurality of image carriers each of which is provided in accordance with each of the image formers and carries the toner image formed by each image former; a first intermediate transfer body on which multiple toner images are formed; a secondary transferor that secondarily transfers to a sheet, the multiple toner images formed on the first intermediate transfer body; and an adhesion force reducer that is provided between a position where the multiple toner images are formed on the first intermediate transfer body and a secondary transfer position of the secondary transferor and that reduces an adhesion force of toner included in the multiple toner images formed on the first intermediate transfer body.

公开(公告)号：US20170090359A1

公开(公告)日：2017-03-30

申请号：US15265790

申请日：2016-09-14

Applicant: Konica Minolta, Inc.

Inventor： Toshiki HAYAMI

IPC: G03G15/16

CPC classification number: G03G15/1675 ,  G03G15/1605

Abstract: A transfer device includes a voltage applying section configured to apply a transfer bias to a transfer member, and a control section configured to control the voltage applying section to apply a transfer bias in which a first application period for applying a first transfer bias and a second application period for applying a second transfer bias are alternately provided to the transfer member when a first sheet having a small surface smoothness passes through a nip.

公开(公告)号：US20190146396A1

公开(公告)日：2019-05-16

申请号：US16191895

申请日：2018-11-15

Applicant: KONICA MINOLTA, INC.

Inventor： Takashi KAWANAGO ,  Satoshi NISHIDA ,  Takeshi MAEYAMA ,  Toshiki HAYAMI ,  Tomo KITADA ,  Daisuke MURAKAMI

IPC: G03G15/00

Abstract: An image forming apparatus which forms a toner image on an image carrier based on image formation data, and transfers the toner image onto a sheet having an unevenness on a surface and forms an image, the image forming apparatus including a hardware processor which detects a parameter value regarding a charging amount of a toner that forms the toner image, sets a size of a dot of the toner image according to the detected parameter value, and generates the image formation data of the dot of the set size.

公开(公告)号：US20180017902A1

公开(公告)日：2018-01-18

申请号：US15641452

申请日：2017-07-05

Applicant: KONICA MINOLTA, INC.

Inventor： Toshiki HAYAMI

IPC: G03G15/16 ,  G03G15/08 ,  G03G15/01 ,  G03G21/16 ,  G03G15/00

CPC classification number: G03G15/0844 ,  G03G15/0105 ,  G03G15/0189 ,  G03G15/0194 ,  G03G15/0822 ,  G03G15/0877 ,  G03G15/1605 ,  G03G15/162 ,  G03G15/50 ,  G03G21/1647

Abstract: An electrophotographic image forming apparatus includes: an electrostatic latent image retainer; an intermediate transfer body; a primary transfer member to transfer toner image retained by the electrostatic latent image retainer to an imaging region of the intermediate transfer body; a secondary transfer member to transfer the transferred toner image from the intermediate transfer body to a transfer medium; a toner forcible discharger to forcibly discharge toner into a non-imaging region of the intermediate transfer body; and a controller to control a volume of the toner to be forcibly discharged. The intermediate transfer body is a multi-layer belt including a base layer and an outermost coating layer. The coating layer contains silicon dioxide. The controller reduces the volume of the toner to be forcibly discharged based on use history information of the intermediate transfer body, compared to the volume at an initial stage of use.

公开(公告)号：US20140119783A1

公开(公告)日：2014-05-01

申请号：US14062110

申请日：2013-10-24

Applicant: Konica Minolta, Inc.

Inventor： Toshiki HAYAMI

IPC: G03G15/01

CPC classification number: G03G15/162 ,  G03G2215/0132

Abstract: A volume resistivity RA of an elastic layer of an intermediate transferrer is larger than a volume resistivity RB of a base layer of the intermediate transferrer under a HT/HH environment, and is smaller than RB under a LT/LH environment. A transfer device includes the intermediate transferrer. A volume resistivity RC of a transfer member of the transfer device is smaller than RA and RB under any temperature or humidity environment. An image forming apparatus includes the transfer device. The apparatus can suppress the occurrence of a transfer failure due to a change in temperature or humidity.

Abstract translation: 在HT / HH环境下，中间转印器的弹性层的体积电阻率RA大于中间转印器的基底层的体积电阻率RB，并且在LT / LH环境下小于RB。 传送装置包括中间传送器。 在任何温度或湿度环境下，转印装置的转印部件的体积电阻率RC小于RA和RB。 图像形成装置包括转印装置。 该装置可以抑制由于温度或湿度的变化引起的转印失败的发生。