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公开(公告)号：US20230176515A1
公开(公告)日：2023-06-08
申请号：US17968455
申请日：2022-10-18
Applicant: Konica Minolta, Inc.
Inventor： Hiroyuki YOSHIKAWA , Hitoshi ASANO , Yumiko IZUMIYA , Yasuhiro KOIDE
IPC: G03G15/00 , B65H43/00 , G01N21/3554 , G01N21/359 , G01N27/04 , G01N21/86 , G01N3/06 , G01N3/20
CPC classification number: G03G15/5029 , B65H43/00 , G01N21/3554 , G01N21/359 , G01N27/04 , G01N21/86 , G01N3/06 , G01N3/20 , G03G15/6529 , B65H2515/81 , B65H2515/70 , B65H2553/40 , B65H2515/805 , G01N2203/0023 , G01N2203/06
Abstract: Paper physical property detecting device includes a first detector that measures a sheet of paper (hereinafter, merely referred to as a paper) made to stop temporarily on a conveyance path and acquires a first value corresponding to a first physical property, a second detector that measures a paper while conveying the paper on the conveyance path and acquires a second value corresponding to a second physical property with regard to a physical property different from the first physical property; and a corrector that corrects the first value on a basis of the second value and creates post correction data.
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公开(公告)号：US20210325810A1
公开(公告)日：2021-10-21
申请号：US17218634
申请日：2021-03-31
Applicant: KONICA MINOLTA, INC.
Inventor： Akimasa ISHIKAWA , Atsushi TAKAHASHI , Hitoshi ASANO , Yumiko IZUMIYA , Hirotada SEKI
IPC: G03G15/00
Abstract: The present invention is directed to detect gloss of a toner image from which the influence of heat applied to a sheet by a fixing unit is eliminated. An image forming device according to an aspect of the invention includes: a gloss sensor irradiating a recording medium on which a toner image is formed and fixed with light, measuring reflectance of reflection light from the recording medium, and measuring gloss of the toner image on the basis of the reflectance; and a gloss correcting unit correcting the gloss of the toner image measured by the gloss sensor in a situation that the temperature of the toner image fixed on the recording medium is assumed to be higher than a predetermined threshold temperature or in the case where it is determined that the temperature of the toner image is higher than the predetermined threshold temperature.
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公开(公告)号：US20240272071A1
公开(公告)日：2024-08-15
申请号：US18430060
申请日：2024-02-01
Applicant: Konica Minolta, Inc.
Inventor： Akimasa ISHIKAWA , Hitoshi ASANO , Yumiko IZUMIYA , Yasuo KOYANAGI , Hiroyuki YOSHIKAWA
CPC classification number: G01N21/4738 , G03G15/16 , G03G15/5029 , G01N2021/8917 , G03G2215/00751 , G03G2215/00772 , G03G2215/00776
Abstract: A media detection apparatus for detecting moisture information corresponding to a moisture amount or a moisture percentage of a sheet, the media detection apparatus comprising:
a light emitter that emits light;
a light receiver that receives the light reflected off the sheet or transmitted through the sheet; and
a first hardware processor that determines the moisture information on the basis of temperature information corresponding to a temperature of the media detection apparatus and an output of the light receiver.-
公开(公告)号：US20220011703A1
公开(公告)日：2022-01-13
申请号：US17347178
申请日：2021-06-14
Applicant: KONICA MINOLTA, INC.
Inventor： Atsushi TAKAHASHI , Hitoshi ASANO , Yumiko IZUMIYA , Hirotada SEKI , Akimasa ISHIKAWA
IPC: G03G15/00
Abstract: A glossiness inspection device includes: an illumination device that emits irradiation light; a light receiving device that receives reflected light of the irradiation light reflected by a glossiness detection target and outputs a light reception detection signal according to an amount of the received light; a correction plate that includes at least a first gloss region and a second gloss region; a dimmer that adjusts an amount of the irradiation light; a detection signal adjuster that adjusts a gain for amplifying the light reception detection signal; an irradiation position controller that selectively irradiates the first gloss region and the second gloss region with the irradiation light; and a hardware processor that adjusts at least one of the amount of the irradiation light, an offset of the detection signal adjuster, a characteristic straight line for calculating a glossiness, or a calculated glossiness.
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5.发明申请公开(公告)号：US20190177102A1
公开(公告)日：2019-06-13
申请号：US16201452
申请日：2018-11-27
Applicant: KONICA MINOLTA, INC.
Inventor： Hiroshi YAMAGUCHI , Hitoshi ASANO , Toshikazu HIGASHI , Tomonobu TAMURA
Abstract: A paper conveyance device includes: an upstream roller and a downstream roller being arranged at an interval in a paper conveyance path; paper conveyance guides being arranged between the upstream and downstream roller in the paper conveyance path to guide both surfaces of paper along the paper conveyance path during paper conveyance; drivers that drive the upstream and downstream roller independently; and a processor that measures the load torques on the upstream and downstream roller, that judges whether or not the paper is rubbing against one of the paper conveyance guides with reference to the load torques on the upstream and downstream roller, the load torques being obtained by the processor, and that performs controlled paper conveyance with reference to the load torques on the upstream and downstream roller depending on the result of the judgment being obtained by the processor.
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Patent Agency Ranking
公开(公告)号：US20250093806A1
公开(公告)日：2025-03-20
申请号：US18883613
申请日：2024-09-12
Applicant: Konica Minolta, Inc.
Inventor： Yumiko IZUMIYA , Hiroyuki MARUYAMA , Hitoshi ASANO , Hiroyuki YOSHIKAWA , Akimasa ISHIKAWA , Yasuo KOYANAGI
IPC: G03G15/00
Abstract: An image forming system including: a hardware processor, wherein the hardware processor is configured to perform, a first control parameter determination operation that determines a value of a control parameter for sheet processing; a second control parameter determination operation that determines the value of the control parameter for the sheet processing by a method different from the first control parameter determination operation; and a selection operation configured to be capable of setting which of the first control parameter determination operation and the second control parameter determination operation is used to determine the value of at least one of a plurality of control parameters.
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公开(公告)号：US20220191340A1
公开(公告)日：2022-06-16
申请号：US17513778
申请日：2021-10-28
Applicant: KONICA MINOLTA, INC.
Inventor： Hirotada SEKI , Hitoshi ASANO , Yumiko IZUMIYA , Akimasa ISHIKAWA , Kazutoshi YOSHIMURA , Yasuo KOYANAGI
IPC: H04N1/00
Abstract: To provide a sheet conveyance device capable of preventing degradation in quality of conveying a sheet and image quality even when a stiffness of the sheet is different between a sheet conveyance direction and a sheet width direction. A sheet conveyance device of an image forming apparatus includes an image forming part that conveys a sheet along a conveyance path; and a stiffness acquisition part that acquires a stiffness of the sheet in a first direction including a component in the sheet conveyance direction by bending the sheet in the first direction, and acquires a stiffness of the sheet in a second direction including a component in the sheet width direction orthogonal to the sheet conveyance direction by bending the sheet in the second direction.
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公开(公告)号：US20220185615A1
公开(公告)日：2022-06-16
申请号：US17529414
申请日：2021-11-18
Applicant: KONICA MINOLTA, INC.
Inventor： Atsushi TAKAHASHI , Hitoshi ASANO , Yumiko IZUMIYA , Hirotada SEKI , Akimasa ISHIKAWA
Abstract: An image forming apparatus includes an image former that forms an image on a sheet of paper, a detector that detects a physical property of a sheet of paper, a receiver that receives paper identification information used in identification of a sheet of paper designated by a user, and a hardware processor. The hardware processor performs: first judgement of judging whether or not there is a correspondence between the paper identification information received by the receiver and a detection result by the detector, second judgement of judging whether or not there is a correspondence between a detection result by the detector of a first sheet of paper conveyed and a detection result by the detector of a second sheet of paper conveyed; and operation control of the image former based on a first judgement result in the first judgement and a second judgement result in the second judgement.
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公开(公告)号：US20160179039A1
公开(公告)日：2016-06-23
申请号：US14972973
申请日：2015-12-17
Applicant: Konica Minolta, Inc.
Inventor： Masayuki WATANABE , Hiroshi YAMAGUCHI , Hitoshi ASANO , Daichi SUZUKI
IPC: G03G15/20
CPC classification number: G03G15/205 , G03G15/2042
Abstract: An image forming apparatus includes: a fixing unit configured to include at least a first and second radiation heaters capable of heating printing medium; a power supply unit configured to supply power to the first and second radiation heaters; and a controller configured to select either one of the first and second radiation heaters and control to light or turn off the selected radiation heater, wherein a heating width of the printing medium of the second radiation heater is wider than that of the first radiation heater, and the controller determines whether to preheat the second radiation heater based on the number of times of lighting of the first and second radiation heaters and controls to light and turn off the second radiation heater when the controller has determined that it is necessary to preheat the second radiation heater.
Abstract translation: 图像形成装置包括：固定单元，被配置为至少包括能够加热打印介质的第一和第二辐射加热器; 电源单元，被配置为向所述第一和第二辐射加热器供电; 以及控制器，被配置为选择第一和第二辐射加热器中的任一个并控制以点亮或关闭所选择的辐射加热器，其中第二辐射加热器的打印介质的加热宽度比第一辐射加热器的加热宽度宽， 并且所述控制器基于所述第一和第二辐射加热器的点亮次数来确定是否预热所述第二辐射加热器，并且当所述控制器确定需要预热所述第二辐射加热器时，控制所述第二辐射加热器并点亮所述第二辐射加热器，并且关闭所述第二辐射加热器 辐射加热器。
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公开(公告)号：US20240308801A1
公开(公告)日：2024-09-19
申请号：US18591658
申请日：2024-02-29
Applicant: Konica Minolta, Inc.
Inventor： Satoshi OGATA , Hitoshi ASANO , Yumiko IZUMIYA
CPC classification number: B65H7/06 , G03G15/5029 , B65H2511/13 , B65H2515/805 , B65H2515/81 , B65H2553/40 , B65H2701/1131 , G03G2215/0062 , G03G2215/00734 , G03G2215/00738 , G03G2215/00776
Abstract: A sheet characteristic detection device includes a first conveyance path on which a sheet is conveyed, a second conveyance path that is branched from the first conveyance path and on which a sheet to be purged is conveyed without passing through an image former, and a first detector that is disposed on the first conveyance path and allows detection of sheet characteristic information corresponding to at least one of a size, a sheet thickness, a basis weight, or a moisture amount of the sheet.
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