公开(公告)号：US20150316878A1

公开(公告)日：2015-11-05

申请号：US14698070

申请日：2015-04-28

Applicant: Konica Minolta, Inc.

Inventor： Kazuteru ISHIZUKA ,  Tetsuya ISHIKAWA ,  Hiroshi MORIMOTO ,  Kei OKAMURA

IPC: G03G15/20

CPC classification number: G03G15/20 ,  G03G15/2028 ,  G03G15/5062 ,  G03G15/652 ,  G03G15/6594

Abstract: A method of controlling an image forming apparatus, an image forming apparatus and image forming system are described, with which banner paper can be processed by appropriately detecting the banner paper in the fixing position when the conveyance of the banner paper is halted. The image forming apparatus comprises a paper conveying unit for conveying banner paper, an image forming unit for transferring an image to the banner paper, a fixing unit for fixing the image to the banner paper in a fixing nip by heating and pressing the banner paper conveyed along a conveying route, and a control unit. This control unit identifies information about the paper position which coincides with the fixing nip when the conveyance of the banner paper is halted and information about the amount of paper deformation of the banner paper in the paper position, and outputs the information which is identified.

Abstract translation: 描述了一种控制图像形成装置，图像形成装置和图像形成系统的方法，通过在横幅纸的传送停止时通过适当地检测固定位置中的横幅纸来处理横幅纸。 图像形成装置包括用于传送横幅纸的纸张传送单元，用于将图像传送到横幅纸的图像形成单元，用于通过加热和按压传送的横幅纸将图像定影到定影夹持部中的横幅纸的定影单元 沿着输送路径和控制单元。 该控制单元识别当横幅纸的传送停止时与定影辊隙重合的纸张位置的信息以及关于纸张位置中横幅纸的纸张变形量的信息，并且输出识别的信息。

公开(公告)号：US20220121149A1

公开(公告)日：2022-04-21

申请号：US17496388

申请日：2021-10-07

Applicant: Konica Minolta, Inc.

Inventor： Kei YUASA ,  Takenobu KIMURA ,  Takashi AKAZAWA ,  Kei OKAMURA

IPC: G03G21/00

Abstract: Provided is an image forming apparatus including: a transfer member; a first image carrier on which a first toner image using toner of a first color is formed; a second image carrier which is provided on a downstream side relative to the first image carrier in a moving direction (rotating direction) of the transfer member, and on which a second toner image using toner of a second color is formed; a lubricant supply section that supplies a lubricant to the second image carrier; and a control section that controls a supply amount of the lubricant to the second image carrier in accordance with an overlap amount between the first toner image and the second toner image which are transferred from the first image carrier and the second image carrier to the transfer member.

公开(公告)号：US20210389709A1

公开(公告)日：2021-12-16

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.

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：US20180284644A1

公开(公告)日：2018-10-04

申请号：US15904753

申请日：2018-02-26

Applicant: KONICA MINOLTA, INC.

Inventor： Kei YUASA ,  Shunichi TAKAYA ,  Hideaki TANAKA ,  Kazuteru ISHIZUKA ,  Shota SAKURAI ,  Kei OKAMURA

IPC: G03G15/08 ,  G03G9/113

CPC classification number: G03G15/0849 ,  G03G9/1131 ,  G03G15/0812 ,  G03G15/087 ,  G03G15/0893 ,  G03G15/6511 ,  G03G21/1867

Abstract: A developing apparatus includes: a developer carrying member carrying a developer; a plurality of developer feeders accommodating the developer carried by the developer carrying member and being arranged in an axial direction of the developer carrying member; and a collecting part that collects the developer from the developer carrying member and feeds the developer to a second developer feeder different from a first developer feeder located at a position where the developer is collected from the developer carrying member in the axial direction, among the plurality of developer feeders.

公开(公告)号：US20180107137A1

公开(公告)日：2018-04-19

申请号：US15728593

申请日：2017-10-10

Applicant: Konica Minolta, Inc.

Inventor： Kei OKAMURA ,  Shunichi TAKAYA ,  Hideaki TANAKA ,  Kazuteru ISHIZUKA ,  Shota SAKURAI ,  Kei YUASA

IPC: G03G15/08

CPC classification number: G03G15/105 ,  G03G15/0893

Abstract: A developing device includes a hardware processor that performs control in which a developer circulation state is switched between a first state and a second state depending on states of the developer in the first and the second regions. The first state is a state in which a developer circulation path is formed in each of the first and the second regions, and the second state is a state in which a single developer circulation path is formed all through the first and the second regions.

公开(公告)号：US20160378035A1

公开(公告)日：2016-12-29

申请号：US15190785

申请日：2016-06-23

Applicant: Konica Minolta, Inc.

Inventor： Kei OKAMURA ,  HIROSHI MORIMOTO ,  WATARU WATANABE ,  SHUNICHI TAKAYA

IPC: G03G15/00

CPC classification number: G03G15/5058 ,  G03G2215/0135 ,  G03G2215/0164

Abstract: An image forming apparatus includes: an image forming unit including a rotating member and being configured to form an image on a paper sheet in accordance with print job data; a rotation position detecting unit configured to detect a rotation position of the rotating member; an image density detecting unit configured to detect a density in an image formed on an image carrier; an image information analyzing unit configured to analyze image information in the print job data; a density profile managing unit configured to form a correction patch image on the image carrier, and create and manage a density profile indicating periodical density unevenness; a correction data creating unit configured to create correction data; a density correcting unit configured to perform density correction; and a density correction control unit configured to predict an appearance of periodical density unevenness, and set conditions for the density correction.

Abstract translation: 图像形成装置包括：图像形成单元，包括旋转构件，并且被配置为根据打印作业数据在纸张上形成图像; 旋转位置检测单元，被配置为检测旋转构件的旋转位置; 图像浓度检测单元，被配置为检测在图像载体上形成的图像中的浓度; 图像信息分析单元，被配置为分析打印作业数据中的图像信息; 密度分布管理单元，被配置为在所述图像载体上形成校正斑块图像，并且创建和管理指示周期性密度不均匀的密度分布; 校正数据生成单元，被配置为创建校正数据; 密度校正单元，被配置为执行密度校正; 以及密度校正控制单元，其被配置为预测周期性浓度不均匀的外观，并且设置用于浓度校正的条件。

公开(公告)号：US20150355584A1

公开(公告)日：2015-12-10

申请号：US14734642

申请日：2015-06-09

Applicant: Konica Minolta, Inc.

Inventor： Tetsuya ISHIKAWA ,  Hiroshi MORIMOTO ,  Kazuteru ISHIZUKA ,  Kei OKAMURA

IPC: G03G15/20

CPC classification number: G03G15/2046 ,  G03G15/205 ,  G03G15/6517 ,  G03G2215/00455

Abstract: A fixing apparatus includes a heating unit configured to heat an endless belt stretched around a plurality of rollers, a lower pressure roller pressed into contact with the fixing belt, and a control unit configured to control the temperature of the fixing belt by controlling the heating unit, and fixes an unfixed toner image formed on a continuous paper to the continuous paper by heat from the heated object under a nipping pressure applied at the nip portion which is formed by engagement between the fixing belt and the lower pressure roller. The control unit controls the temperature of the fixing belt to be a stand-by temperature lower than such a first temperature, which is set up in advance, that paper trouble might occur if the continuous paper is continuously heated at a temperature not lower than the first temperature in a stand-by state in which fixing is not performed.

Abstract translation: 定影装置包括：加热单元，被配置为加热围绕多个辊延伸的环形带，压力与定影带接触的下压辊;以及控制单元，其被配置为通过控制加热单元来控制定影带的温度 并且通过施加在通过定影带和下压辊之间的接合而形成的压合部分处的夹持压力下从加热物体的热量将连续纸上形成的未定影调色剂图像固定在连续纸上。 控制单元将定影带的温度控制为比预先设定的第一温度低的待机温度，如果连续纸在不低于 第一温度处于不执行定影的待机状态。

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。