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公开(公告)号：US20160195843A1
公开(公告)日：2016-07-07
申请号：US14986782
申请日：2016-01-04
Applicant: Konica Minolta, Inc.
Inventor： Hidetoshi Noguchi , Kazutoshi Kobayashi , Tomohisa Yoshida , Kazuya Kitamura , Ryohei Matsuo
IPC: G03G15/00
CPC classification number: G03G21/00 , G03G15/0893 , G03G21/0005 , G03G21/0094
Abstract: An image forming apparatus having; an image supporting member; an electrostatic latent image forming section; and a developing device. In the developing device, a supply member receives toner, polish and antifriction at a supply part. The supply member supplies the toner, the polish and the antifriction to a developing roller while conveying the toner, the polish and the antifriction in a predetermined direction along a rotation axis of the image supporting member. A developing roller develops an electrostatic latent image by supplying the toner, the polish and the antifriction to the image supporting member. A toner patch is formed on the image supporting member, in a facing area capable of facing the developing roller, such that the amount of toner adhering to the image supporting member decreases with increasing distance in the predetermined direction from the supply part. A cleaner removes the toner patch from the image supporting member.
Abstract translation: 一种图像形成装置，具有： 图像支撑构件; 静电潜像形成部; 和显影装置。 在显影装置中，供应构件在供应部分处接受调色剂，抛光和抗磨损。 供应构件将调色剂，抛光剂和减摩剂供应到显影辊，同时沿着图像支撑构件的旋转轴线沿着预定方向输送调色剂，抛光剂和减摩剂。 显影辊通过向图像支撑构件供应调色剂，抛光剂和减摩剂来显影静电潜像。 在能够面对显影辊的面对区域中的图像支撑构件上形成调色剂贴片，使得粘附到图像支撑构件的调色剂的量随着从供给部分沿预定方向的距离的增加而减小。 清洁剂从图像支撑构件移除调色剂贴片。
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公开(公告)号：US09223243B2
公开(公告)日：2015-12-29
申请号：US13900154
申请日：2013-05-22
Applicant: Konica Minolta, Inc.
Inventor： Shintaro Sone , Hiroyuki Saito , Hisayoshi Nagase , Kazuteru Ishizuka , Tatsuya Furuta , Kazutoshi Kobayashi
IPC: G03G15/02
CPC classification number: G03G15/0258 , G03G15/0291 , G03G2215/027
Abstract: A charging device has a charging member to charge an object, an applying unit to apply a voltage to the charging member for generating an electric discharge from the charging member, so that the object is discharged by the charging member, a detecting unit to detect an emission of light of the electric discharge, an output unit to output a detection result by the detecting unit, a cleaning unit to clean the charging member, and a controller to control the cleaning unit to clean the charging member when the detection result is out of a predetermined range.
Abstract translation: 充电装置具有用于对物体充电的充电构件，施加单元，用于向充电构件施加电压，用于从充电构件产生放电，使得物体由充电构件放电;检测单元，用于检测 发射放电灯，输出单元，输出检测单元的检测结果;清洁单元，用于清洁充电构件;以及控制器，当检测结果超出时，控制清洁单元清洁充电构件 预定范围。
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Patent Agency Ranking
公开(公告)号：US11480905B2
公开(公告)日：2022-10-25
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.
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公开(公告)号：US11275334B2
公开(公告)日：2022-03-15
申请号：US17320702
申请日：2021-05-14
Applicant: Konica Minolta, Inc.
Inventor： Kazutoshi Kobayashi , Tomohiro Kawasaki , Keiki Katsumata , Kei Okamura
Abstract: Provided is an image forming apparatus including a developer that performs development with toner, the image forming apparatus including a vibrator that applies vibrations to a vibrated portion of the developer, and a hardware processor that controls the vibrator. The hardware processor determines a toner leakage level based on a result of detecting toner leakage adhering to a sheet caused by the image forming apparatus, settles a vibrating condition of the vibrator in accordance with the toner leakage level, and causes the vibrator to perform a vibrating operation under the settled vibrating condition.
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公开(公告)号：US12032318B2
公开(公告)日：2024-07-09
申请号：US18064490
申请日：2022-12-12
Applicant: KONICA MINOLTA, INC.
Inventor： Taiki Amemiya , Kazutoshi Kobayashi , Yukio Hosoya , Seijiro Takahashi , Tomoko Sakimura , Kazukuni Nishimura
CPC classification number: G03G15/6597 , G03G5/06147 , G03G5/061473 , G03G5/0732 , G03G5/14786 , G03G5/14791 , G03G5/14795 , G03G8/00 , G03G15/751 , G03G21/0011 , G03G2215/00518
Abstract: An electrophotographic image forming system forms an electrostatic latent image on at least a photoreceptor, develops an image using an electrostatic charge image developing toner, and removes the toner using a cleaning blade. A tip ridge of the cleaning blade is pressed against a surface of the photoreceptor. The system includes a photosensitive layer of the photoreceptor and a surface protecting layer that is provided on a surface of the photosensitive layer. The surface protecting layer includes a polymerizable monomer having at least two polymerizable groups in a molecule and a polymer of a hole transporting compound having a polymerizable group represented by General formula (1). The tip ridge of the cleaning blade has an edge angle that is obtuse and less than 120° and is pressed against the surface of the photoreceptor at an effective contact angle that is in a range of 8 to 20°.
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公开(公告)号：US11181858B1
公开(公告)日：2021-11-23
申请号：US17327534
申请日：2021-05-21
Applicant: Konica Minolta, Inc.
Inventor： Kei Okamura , Tomohiro Kawasaki , Kazutoshi Kobayashi , Keiki Katsumata
IPC: G03G15/00
Abstract: An image forming apparatus includes: a developer carrier; a screw-shaped developer feeder that feeds developer to the developer carrier; an image carrier on which an image is imaged with toner of the developer; a developing current detector that detects developing current between the image carrier and the developer carrier during imaging; and a controller that detects image density failure that is periodic and oblique to a rotation direction of the image carrier. The controller causes a stripe image to be imaged on the image carrier and analyzes change of the developing current with time during imaging of the stripe image, thereby detecting the image density failure. The stripe image has a width in a length direction of the image carrier narrower than a period of a blade of the developer feeder and has a length in the rotation direction longer than a period of the image density failure.
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公开(公告)号：US09625869B2
公开(公告)日：2017-04-18
申请号：US14986782
申请日：2016-01-04
Applicant: Konica Minolta, Inc.
Inventor： Hidetoshi Noguchi , Kazutoshi Kobayashi , Tomohisa Yoshida , Kazuya Kitamura , Ryohei Matsuo
CPC classification number: G03G21/00 , G03G15/0893 , G03G21/0005 , G03G21/0094
Abstract: An image forming apparatus having: an image supporting member; an electrostatic latent image forming section; and a developing device. In the developing device, a supply member receives toner, polish and antifriction at a supply part. The supply member supplies the toner, the polish and the antifriction to a developing roller while conveying the toner, the polish and the antifriction in a predetermined direction along a rotation axis of the image supporting member. A developing roller develops an electrostatic latent image by supplying the toner, the polish and the antifriction to the image supporting member. A toner patch is formed on the image supporting member, in a facing area capable of facing the developing roller, such that the amount of toner adhering to the image supporting member decreases with increasing distance in the predetermined direction from the supply part. A cleaner removes the toner patch from the image supporting member.
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