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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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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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3.发明申请公开(公告)号：US20190302671A1
公开(公告)日：2019-10-03
申请号：US16285276
申请日：2019-02-26
Applicant: KONICA MINOLTA, INC.
Inventor： Hiroshi EGUCHI , Natsuyo IDA , Junichi MASUDA , Masahiro NONOYAMA , Akimasa ISHIKAWA
IPC: G03G15/00
Abstract: An image forming apparatus includes: a first rotor and a second rotor that are each a rotatable member; a first movable member including the first rotor or a transferer that transfers power of the first rotor to another member; a second movable member including the second rotor or a transferer that transfers power of the second rotor to another member; a hardware processor that drives simultaneously the first rotor and the second rotor at mutually different numbers of revolutions or speeds, and performs abnormality diagnosis on the first movable member and the second movable member, based on the sounds of operation acquired by the sound acquirer; and a sound acquirer that acquires sounds of operation of the first movable member and the second movable member with the first rotor and the second rotor being driven by the hardware processor.
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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.-
5.发明申请公开(公告)号：US20190187601A1
公开(公告)日：2019-06-20
申请号：US16212684
申请日：2018-12-07
Applicant: KONICA MINOLTA, INC.
Inventor： Hirotada SEKI , Hiroshi EGUCHI , Natsuyo IDA , Junichi MASUDA , Masahiro NONOYAMA , Akimasa ISHIKAWA
CPC classification number: G03G15/55 , G03G21/0011 , H04R1/08
Abstract: An abnormality determination apparatus includes: an audio data acquisitor that acquires audio data of an apparatus to be judged for determining presence or absence of abnormality; an abnormal sound detector that detects an abnormal sound based on the audio data acquired by the audio data acquisitor; and a hardware processor that determines whether the abnormal sound is such a sound that an operation of the apparatus to be judged should be restricted based on a subsequent secular change of the abnormal sound when the abnormal sound is detected by the abnormal sound detector, and restricts the operation of the apparatus to be judged when the hardware processor determines that the abnormal sound is such a sound that the operation of the apparatus to be judged should be restricted.
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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：US20150028791A1
公开(公告)日：2015-01-29
申请号：US14332987
申请日：2014-07-16
Applicant: KONICA MINOLTA, INC.
Inventor： Takahiro TSUJIMOTO , Hideki NAKAMURA , Takeshi ISHIDA , Naoto SUGAYA , Akimasa ISHIKAWA
CPC classification number: H02P8/12 , G03G15/06 , G03G15/5008 , G03G15/6529
Abstract: An image forming apparatus drives and rotates at least one of a photosensitive drum and a transport roller with use of a stepping motor in a multi-phase excitation mode. The image forming apparatus includes: a constant-voltage control unit controlling the stepping motor by applying a constant voltage for each phase; a constant-current control unit controlling the stepping motor by regulating an amount of current for each phase by a chopping control; a measuring unit measuring a chopping count of each phase on a per-step basis; a chopping count determination unit determining whether the chopping count of each phase is less than or equal to a predetermined count; and a control switching unit causing the constant-voltage control unit to control the stepping motor when the chopping count determination unit determines affirmatively, and causing the constant-current control unit to control the stepping motor when the chopping count determination unit determines negatively.
Abstract translation: 图像形成装置利用多相励磁模式中的步进电机来驱动和旋转感光鼓和输送辊中的至少一个。 图像形成装置包括：恒压控制单元，通过对各相施加恒定电压来控制步进电动机; 恒流控制单元，其通过斩波控制来调节各相的电流量来控制所述步进电动机; 测量单元，测量每个阶段的每个阶段的切碎计数; 斩波计数确定单元，确定每相的斩波计数是否小于或等于预定计数; 以及控制切换单元，其使得所述恒压控制单元在所述切断计数确定单元肯定地确定时控制所述步进电机，并且当所述切断计数确定单元判定为否定时，使所述恒流控制单元控制所述步进电机。
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10.发明公开公开(公告)号：US20230375968A1
公开(公告)日：2023-11-23
申请号：US18134262
申请日：2023-04-13
Applicant: KONICA MINOLTA, INC.
Inventor： Yuhei TATSUMOTO , Akimasa ISHIKAWA , Makoto SHIMAZOE , Yuta TACHIBANA , Kouei CHO
CPC classification number: G03G15/5029 , G06K15/4065
Abstract: Provided is an image forming system capable of accurately detecting the resistance of a recording material. The image forming system includes an application roller that applies a voltage to a recording material on a conveyance path, and a controller that calculates the electric resistance of the recording material from a relationship between the voltage applied to the application roller and a current. The controller calculates the resistance of the recording material based on first profile information that is acquired by changing the applied voltage and corresponds to a change in the resistance of the application roller, and second profile information that is acquired by changing the applied voltage in a state where the recording material is sandwiched and corresponds to the change in the resistance of the application roller.
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