公开(公告)号：US20190212671A1

公开(公告)日：2019-07-11

申请号：US16204707

申请日：2018-11-29

Applicant: Konica Minolta, Inc.

Inventor： Aiko KUBOTA ,  Hiroyuki SAITO ,  Shunichi TAKAYA ,  Kazuteru ISHIZUKA ,  Kei OKAMURA

IPC: G03G15/08

Abstract: An image forming apparatus includes: a developer casing that accommodates a developer; an developer detector that is disposed in the developer casing, and that detects, based on magnetic force, the developer from a plurality of detection ranges that is close to each other and is disposed side by side in a vertical direction in the developer casing; and a hardware processor that performs control of detecting a liquid level position of the developer in the developer casing, based on a detection result detected by the developer detector.

公开(公告)号：US20140169851A1

公开(公告)日：2014-06-19

申请号：US14134283

申请日：2013-12-19

Applicant: Konica Minolta, Inc.

Inventor： Hiroyuki SAITO ,  Takashi AKAZAWA ,  Kei OKAMURA ,  Eri YAGI

IPC: G03G21/00

CPC classification number: G03G21/0094

Abstract: A lubricant coating device includes a photoconductor and a leveling blade that levels a lubricant applied on a surface of the photoconductor, the leveling blade configured to abut the photoconductor in a trail direction with respect to a rotational direction of the photoconductor, wherein a hardness of a tip of the leveling blade, the tip being positioned on a side that abuts the surface of the photoconductor, is higher than hardness of a non-abutting portion that does not abut the surface of the photoconductor.

Abstract translation: 润滑剂涂覆装置包括光电导体和调平刀片，其使施加在光电导体表面上的润滑剂水平，所述调平刀片被配置为相对于光电导体的旋转方向在轨迹方向上抵接光电导体，其中硬度为 位于与光电导体表面相邻的一侧的调平刀片的尖端高于不邻接感光体表面的非邻接部分的硬度。

公开(公告)号：US20190332034A1

公开(公告)日：2019-10-31

申请号：US16376308

申请日：2019-04-05

Applicant: KONICA MINOLTA, INC.

Inventor： Kei OKAMURA ,  Hiroyuki SAITO ,  Shunichi TAKAYA ,  Kazuteru ISHIZUKA ,  Aiko KUBOTA

IPC: G03G15/08

Abstract: A developing apparatus includes: a developer carrying body that carries a developer and is rotationally driven; a developer stirring member that is rotationally driven and thereby stirs the developer and conveys the developer to the developer carrying body; and a developer recovery member that is rotationally driven and thereby returns and recovers the developer stripped from the developer carrying body after development of the electrostatic latent image, to the developer stirring member, wherein a driving speed of the developer stirring member and a driving speed of the developer recovery member are independently controllable from each other.

公开(公告)号：US20180113401A1

公开(公告)日：2018-04-26

申请号：US15728776

申请日：2017-10-10

Applicant: KONICA MINOLTA, INC.

Inventor： Tomohiro KAWASAKI ,  Tetsuya ISHIKAWA ,  Hiroyuki SAITO ,  Ryoei IKARI ,  Tatsuya FURUTA ,  Aiko KUBOTA

IPC: G03G15/08 ,  G03G15/20

CPC classification number: G03G15/104 ,  G03G15/2003 ,  G03G15/2053 ,  G03G15/6585 ,  G03G15/6591

Abstract: An image forming apparatus includes: an image former that forms on a recording material a toner image based on input image information; a fixer that fixes a toner image formed on the recording material; and a hardware processor that controls the image former and the fixer in which the hardware processor controls the image former to supply, to a region where no toner is provided between toner images based on the input image information, complementing toner having a thermal conductivity higher than a thermal conductivity of toner for forming the toner image based on input image information.

公开(公告)号：US20210364967A1

公开(公告)日：2021-11-25

申请号：US17319009

申请日：2021-05-12

Applicant: Konica Minolta, Inc.

Inventor： Tomohiro KAWASAKI ,  Hiroyuki SAITO ,  Kazutoshi KOBAYASHI ,  Keiki KATSUMATA ,  Kei OKAMURA

IPC: G03G15/00

Abstract: An image forming apparatus includes: an image carrier; an exposing device; a developing device with a developing roller; a development current detector that detects development current between the image carrier and the developing roller; and a hardware processor. Under an image forming condition, the hardware processor causes the exposing device to draw, on the image carrier, a development current-detection pattern that includes a solid image and a halftone image that follows the solid image in an image-conveying direction of the image carrier, causes the developing device to develop the development current-detection pattern, obtains information on a chronological change of the detected development current from the development current detector, and determines whether or not a ghost image due to the solid image occurs based on a temporary drop of the detected development current during development of the halftone image.

公开(公告)号：US20190163094A1

公开(公告)日：2019-05-30

申请号：US16197895

申请日：2018-11-21

Applicant: KONICA MINOLTA, INC.

Inventor： Kazuteru ISHIZUKA ,  Hiroyuki SAITO ,  Shunichi TAKAYA ,  Kei OKAMURA ,  Aiko KUBOTA

IPC: G03G15/09 ,  G03G15/08

Abstract: There is provided a developing device for developing an electrostatic latent image formed on a photoreceptor with a developer to form an image, including: a developing container that contains the developer; and a developing roller that faces the photoreceptor, is arranged adjacent to the developing container, and conveys the developer contained in the developing container to the photoreceptor, wherein the developing roller includes a magnetic pole forming part to be formed with a plurality of magnetic poles along a circumferential direction of the developing roller, at least a catch pole is formed as one of the plurality of magnetic poles, and in the catch pole, an amount of a total magnetic charge in an axial direction of the developing roller is kept constant, and a part of magnetic flux density distribution is different from another part of magnetic flux density distribution along the axial direction of the developing roller.

公开(公告)号：US20170153573A1

公开(公告)日：2017-06-01

申请号：US15338906

申请日：2016-10-31

Applicant: Konica Minolta, Inc.

Inventor： Tomohiro KAWASAKI ,  Hiroyuki SAITO ,  Kazuhiro SAITO ,  Kei YUASA

IPC: G03G15/08 ,  G03G15/01

CPC classification number: G03G8/00 ,  G03G15/0121 ,  G03G15/0865 ,  G03G15/6585

Abstract: An image forming apparatus includes: a color toner supply unit configured to supply, to a recording medium, color toner for forming a toner image on the recording medium; a transparent toner supply unit configured to supply, to the recording medium, transparent toner having no releasability from a surface member bonded to a surface of the recording medium on which the toner image is formed; and a control unit configured to control the transparent toner supply unit to supply the transparent toner to cover the color toner supplied from the color toner supply unit to the recording medium.

公开(公告)号：US20200073297A1

公开(公告)日：2020-03-05

申请号：US16534325

申请日：2019-08-07

Applicant: Konica Minolta Inc.

Inventor： Yuji KAMODA ,  Shota SAKURAI ,  Hiroyuki SAITO ,  Tatsuya FURUTA

IPC: G03G15/20 ,  G03G15/08 ,  G03G15/02

Abstract: An image forming apparatus includes: an image carrier rotatably supported; a lubricant supplier that supplies lubricant to a surface of the image carrier, a blade that levels the lubricant supplied from the lubricant supplier in a film-like form on the surface of the image carrier, and a controller that controls image formation, wherein the controller has a lubricant removal mode to remove the lubricant accumulated on the blade, the lubricant removal mode includes a plurality of displacement modes each of which imparts different displacement to the blade, in each of the displacement modes, one of a displacement amount, a displacement speed, a displacement period, a displacement angle, and a displacement position of the blade is different, and the controller performs switching between the displacement modes during execution of the lubricant removal mode.

公开(公告)号：US20180136582A1

公开(公告)日：2018-05-17

申请号：US15798771

申请日：2017-10-31

Applicant: Konica Minolta, Inc.

Inventor： Hiroyuki SAITO ,  Tetsuya ISHIKAWA ,  Tomohiro KAWASAKI ,  Tatsuya FURUTA ,  Ryoei IKARI ,  Aiko KUBOTA

IPC: G03G15/08

Abstract: An image forming apparatus includes: an image former that forms a toner image based on input image information by superposing toners of plural colors on a recording material; a fixer that fixes the toner image formed on the recording material; a toner amount calculator that calculates, from the input image information, an amount of toners to be superposed on the recording material; and a hardware processor that controls the image former to supply an assistance toner that assists melting of the toners used for forming the toner image based on the input image information by an amount corresponding to the calculated amount of toners.

公开(公告)号：US20150338782A1

公开(公告)日：2015-11-26

申请号：US14718482

申请日：2015-05-21

Applicant: Konica Minolta, Inc.

Inventor： Shunichi TAKAYA ,  Hiroyuki SAITO

IPC: G03G15/16

CPC classification number: G03G15/16 ,  G03G15/161 ,  G03G2215/0478

Abstract: An image forming apparatus of the present invention includes an image carrying member capable of carrying an image, a paper conveying unit, a toner layer forming unit, and a transfer unit. The paper conveying unit conveys a paper to the image carrying member. The toner layer forming unit forms a toner layer having a predetermined width at an outer side of the paper from a position corresponding to an end portion of the paper on a surface of the image carrying member. The transfer unit conveys the paper in press-contact with the image carrying member with the formed image and toner layer and transfers the image to the paper.

Abstract translation: 本发明的图像形成装置包括能够承载图像的图像承载构件，纸张输送单元，调色剂层形成单元和转印单元。 纸张传送单元将纸传送到图像承载构件。 调色剂层形成单元在图像载体的表面上从与纸的端部相对应的位置在纸的外侧形成具有预定宽度的调色剂层。 转印单元将形成图像和调色剂层的纸张与图像承载部件压接，并将图像转印到纸张上。