公开(公告)号：US20170264771A1

公开(公告)日：2017-09-14

申请号：US15447902

申请日：2017-03-02

Applicant: Konica Minolta, Inc.

Inventor： Toshinori INOMOTO ,  Yasuhiro ISHIHARA ,  Toshiaki TANAKA ,  Satoshi CHIKAZAWA

IPC: H04N1/028 ,  H04N1/04 ,  H04N1/00

CPC classification number: H04N1/02865 ,  H04N1/00734 ,  H04N1/0285 ,  H04N1/02855 ,  H04N1/02895 ,  H04N1/04 ,  H04N2201/0094

Abstract: An image reading apparatus includes: three or more light sources configured to each emit light; a light receiving unit including a common light receiving surface configured to detect each light emitted; and an image generation unit configured to cause the three or more light sources to be switched over in a predetermined order and emit the corresponding light, and generate an image read from a document, wherein at least one of the three or more light sources includes a white light source and an optical filter, and the optical filter is configured such that a half-value width of a wavelength with respect to a maximum intensity of a spectral characteristic of the emitted light after transmission is wider than a half-value width of a wavelength with respect to a maximum intensity of the spectral characteristic of the light emitted from at least one of the other light sources.

公开(公告)号：US20150168886A1

公开(公告)日：2015-06-18

申请号：US14557971

申请日：2014-12-02

Applicant: Konica Minolta, Inc.

Inventor： Toshiaki TANAKA ,  Yasuhiro ISHIHARA ,  Kosuke MASUMOTO ,  Satoshi CHIKAZAWA

IPC: G03G15/20

CPC classification number: G03G15/2039 ,  G03G15/5025

Abstract: An image forming apparatus includes an image forming section to form a toner image and transfer the toner image to a recording medium and a fixing section to heat the recording medium transferred with the toner image and further an image analyzing section to extract a density value or a size value of an imaging object included in an image, and a temperature determining section to determine a minimum fixing temperature based on the density value or size value of the imaging object included in a page image. The temperature determining section determines the minimum fixing temperature to be lower when a highest one of the density values is lower than when the highest value is higher or determines the minimum fixing temperature to be lower when a largest one of the size values is smaller than when the largest size value is larger.

Abstract translation: 图像形成装置包括图像形成部分，用于形成调色剂图像并将调色剂图像转印到记录介质和固定部分，以加热用调色剂图像转印的记录介质，并且还提供图像分析部分以提取浓度值或 包括在图像中的成像对象的尺寸值和温度确定部分，用于基于包括在页面图像中的成像对象的浓度值或尺寸值来确定最小定影温度。 当最高的一个密度值低于最高值的最高值时，温度确定部分将最小定影温度确定为较低，或者当最大的一个尺寸值小于 最大尺寸值越大。

公开(公告)号：US20230294406A1

公开(公告)日：2023-09-21

申请号：US18162746

申请日：2023-02-01

Applicant: KONICA MINOLTA, INC.

Inventor： Satoshi CHIKAZAWA

IPC: B41J2/165

CPC classification number: B41J2/16517

Abstract: An inkjet recorder includes: a drum that is rotatable about a rotation axis and conveys a recording medium; a head unit including an ejection surface that ejects ink that forms an image on the medium conveyed to the drum, the head unit being movable between a recording position at which the ejection surface faces the drum and a cleaning position separated from the recording position in a direction parallel to the rotation axis; and a cleaning unit that is disposed at a position being adjacent to the drum in the direction parallel to the rotation axis and facing the ejection surface of the head unit located at the cleaning position, and cleans the ejection surface, wherein the head unit includes heads having the ejection surface, the cleaning unit includes a cleaning member, the cleaning member has a cleaning surface, and the cleaning surface cleans the ejection surface.

公开(公告)号：US20190033771A1

公开(公告)日：2019-01-31

申请号：US16025792

申请日：2018-07-02

Applicant: Konica Minolta, Inc.

Inventor： Katsuhide SAKAI ,  Yasuhiro ISHIHARA ,  Satoshi CHIKAZAWA

IPC: G03G15/00

Abstract: An image forming apparatus that conveys a sheet and forms an image on the sheet, the image forming apparatus includes: a plurality of rollers that are arranged at different positions from one another in a conveyance path of the sheet, and convey the sheet; a motor that rotationally drives at least one of the rollers; a drive that drives the motor by applying a current to the motor; and a hardware processor that determines whether a jam has occurred and a jam type, in accordance with a change in the current flowing in the motor in a period during which the sheet is expected to pass through a target roller being rotationally driven by the motor among the rollers.

公开(公告)号：US20190265624A1

公开(公告)日：2019-08-29

申请号：US16259720

申请日：2019-01-28

Applicant: KONICA MINOLTA, INC.

Inventor： Katsuhide SAKAI ,  Yasuhiro ISHIHARA ,  Satoshi CHIKAZAWA

IPC: G03G15/00

Abstract: An image forming apparatus that forms an image on a sheet includes: a rotating body that forms the image; a motor that rotationally drives the rotating body; a current measurer that measures a motor current flowing through a current supply path including a winding of the motor at a measurement timing that is a timing after the motor is started; a torque acquisitor that acquires a torque value of the motor, based on a measured value of the motor current; and a corrector that performs correction to cancel a current change amount based on a characteristic change depending on a temperature state of the motor at the measurement timing, in acquisition of the torque value by the torque acquisitor.

公开(公告)号：US20180219467A1

公开(公告)日：2018-08-02

申请号：US15878485

申请日：2018-01-24

Applicant: KONICA MINOLTA, INC.

Inventor： Satoshi CHIKAZAWA ,  Toshinori INOMOTO ,  Yasuhiro ISHIHARA

IPC: G03G15/20 ,  H02M1/12 ,  H02M3/335 ,  G03G15/00

CPC classification number: H02M1/12 ,  G03G15/80 ,  H02M3/33507 ,  H02M2001/0058 ,  Y02B70/1491

Abstract: A power control apparatus that supplies an AC current to a load and adjusts a current amount by setting a portion of a phase range among each of half-wave periods of the AC current to be supplied as a conduction angle and setting the remainder as a non-conduction angle, includes: a reference value determiner that defines a period across a plurality of half-wave periods as a current determination period and that determines a reference value of the conduction angle; and a distribution processor that determines a distribution value to distribute the conduction angle and performs current amount adjustment by distributed conduction angles, wherein the distribution processor determines the distribution value within one current determination period such that the value includes a positive distribution value and a negative distribution value, and an average value of the distributed conduction angles is within ±2.5% with respect to the reference value.

公开(公告)号：US20150160593A1

公开(公告)日：2015-06-11

申请号：US14559015

申请日：2014-12-03

Applicant: Konica Minolta, Inc.

Inventor： Kosuke MASUMOTO ,  Toshiaki TANAKA ,  Yasuhiro ISHIHARA ,  Satoshi CHIKAZAWA

IPC: G03G15/20

CPC classification number: G03G15/2039

Abstract: An image forming apparatus forming toner images sequentially on recording sheets transported at intervals, and thermally fixing the toner images by passing the recording sheets through a fixing position on a heating roller. The target fixing temperature is determined according to information of an image on each page. When a first fixing temperature for a given page is higher than a second fixing temperature for the succeeding page and the difference therebetween is greater than a predefined value, part or all of a first period, during which the thermal fixing operation for the given page is performed, and a second period, which corresponds to an interval between the two pages, are reserved for raising the surface temperature by the difference, and temperature control is performed during the reserved periods such that the surface temperature reaches the second temperature before the thermal fixing operation for the succeeding page starts.

Abstract translation: 一种图象形成装置，在间隔传送的记录片材上顺序地形成调色剂图像，并且通过使记录片材通过加热辊上的固定位置来热定影调色剂图像。 目标定影温度根据每页上的图像的信息来确定。 当给定页面的第一定影温度高于后续页面的第二定影温度并且它们之间的差异大于预定值时，第一周期的部分或全部是给定页面的热定影操作 并且对应于两页之间的间隔的第二周期被保留用于通过差异来提高表面温度，并且在预留时段期间执行温度控制，使得表面温度在热定影之前达到第二温度 启动后续页面的操作。