公开(公告)号：US20190049878A1

公开(公告)日：2019-02-14

申请号：US16103299

申请日：2018-08-14

Applicant: KONICA MINOLTA, INC.

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

IPC: G03G15/08 ,  G03G15/09 ,  G03G15/00

Abstract: A developing device includes: an image bearing member; a plurality of developing rollers each supplying toner to the image bearing member, and developing an electrostatic latent image on the image bearing member into a toner image; and a hardware processor analyzing values representing density fluctuations during the toner being supplied from the developing rollers to the image bearing member, for the respective developing rollers, and correcting a control value for an image density of at least one developing roller among the developing rollers based on an result of the analyzing so as to eliminate the density fluctuations, in consideration of an effect caused at the developing roller on a downstream side in a rotational direction of the image bearing member by correcting the control value for the image density of the developing roller on an upstream side.

公开(公告)号：US20170261882A1

公开(公告)日：2017-09-14

申请号：US15450406

申请日：2017-03-06

Applicant: Konica Minolta, Inc.

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

IPC: G03G15/08

CPC classification number: G03G15/0848 ,  G03G15/0844 ,  G03G15/0896 ,  G03G15/5041 ,  G03G21/00 ,  G03G21/0094

Abstract: An image forming apparatus includes: an image carrier; a developing unit which supplies a toner contained in a developer to the image carrier; a lubricant supply unit which supplies a lubricant to the image carrier; a lubricant amount detection unit which detects an amount of the lubricant which is supplied to the image carrier from the lubricant supply unit and is thereafter incorporated into the developing unit from the image carrier; and a control unit which controls the developing unit to discharge the lubricant from the developing unit according to the amount of the lubricant detected by the lubricant amount detection unit.

公开(公告)号：US20130315615A1

公开(公告)日：2013-11-28

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。