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1.发明授权Image forming apparatus with switchable demagnetizing coil and control method 有权具有可切换消磁线圈的图像形成装置及其控制方法公开(公告)号：US09354566B2
公开(公告)日：2016-05-31
申请号：US14178342
申请日：2014-02-12
Applicant: KONICA MINOLTA, INC.
Inventor： Seiichi Kirikubo , Masahiro Kamiya , Takahiro Tsujimoto , Yutaka Yamamoto , Hidenori Mine , Nobuhiro Matsuo
IPC: G03G15/20
CPC classification number: G03G15/2042
Abstract: An image forming apparatus having: a power source applying alternating current voltage to the magnetizing coil; a demagnetizing coil switchable between a conductive state and a cutoff state, and when in the conductive state, cancelling out a portion of a magnetic flux produced by the magnetizing coil; a contact switch and a semiconductor switch electrically connected in parallel, and, in combination, bringing the demagnetizing coil into the conductive state or the cutoff state; and a control unit opening or closing the switches separately. The control unit: opens or closes the semiconductor switch in synchronization with a zero-crossing of the alternating current voltage at least when the contact switch is open; opens or closes the contact switch only when the semiconductor switch is closed; and opens the semiconductor switch when the demagnetizing coil brought into the conductive state by the contact switch needs to be maintained in the conductive state.
Abstract translation: 一种图像形成装置，具有：向所述磁化线圈施加交流电压的电源; 在导通状态和截止状态之间切换的去磁线圈，当处于导通状态时，消除由磁化线圈产生的磁通的一部分; 并联电连接的接触开关和半导体开关，并且组合地将去磁线圈导入导通状态或截止状态; 以及控制单元分开开或关闭开关。 所述控制单元：至少当所述接触开关断开时，与所述交流电压的零交叉同步地打开或关闭所述半导体开关; 只有当半导体开关关闭时才打开或关闭接触开关; 并且当通过接触开关使退磁线圈进入导通状态时需要保持导通状态时，打开半导体开关。
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公开(公告)号：US20140233976A1
公开(公告)日：2014-08-21
申请号：US14178342
申请日：2014-02-12
Applicant: KONICA MINOLTA, INC.
Inventor： Seiichi KIRIKUBO , Masahiro Kamiya , Takahiro Tsujimoto , Yutaka Yamamoto , Hidenori Mine , Nobuhiro Matsuo
IPC: G03G15/20
CPC classification number: G03G15/2042
Abstract: An image forming apparatus having: a power source applying alternating current voltage to the magnetizing coil; a demagnetizing coil switchable between a conductive state and a cutoff state, and when in the conductive state, cancelling out a portion of a magnetic flux produced by the magnetizing coil; a contact switch and a semiconductor switch electrically connected in parallel, and, in combination, bringing the demagnetizing coil into the conductive state or the cutoff state; and a control unit opening or closing the switches separately. The control unit: opens or closes the semiconductor switch in synchronization with a zero-crossing of the alternating current voltage at least when the contact switch is open; opens or closes the contact switch only when the semiconductor switch is closed; and opens the semiconductor switch when the demagnetizing coil brought into the conductive state by the contact switch needs to be maintained in the conductive state.
Abstract translation: 一种图像形成装置，具有：向所述磁化线圈施加交流电压的电源; 在导通状态和截止状态之间切换的去磁线圈，当处于导通状态时，消除由磁化线圈产生的磁通的一部分; 并联电连接的接触开关和半导体开关，并且组合地将去磁线圈导入导通状态或截止状态; 以及控制单元分开开或关闭开关。 所述控制单元：至少当所述接触开关断开时，与所述交流电压的零交叉同步地打开或关闭所述半导体开关; 只有当半导体开关关闭时才打开或关闭接触开关; 并且当通过接触开关使退磁线圈进入导通状态时需要保持导通状态时，打开半导体开关。
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公开(公告)号：US11880153B2
公开(公告)日：2024-01-23
申请号：US17685035
申请日：2022-03-02
Applicant: Konica Minolta, Inc.
Inventor： Masahiro Kamiya , Toshikazu Higashi , Yasuhiro Ishihara , Shigetaka Kato , Katsuhide Sakai
CPC classification number: G03G15/5016 , H04N1/00384 , H04N1/00411
Abstract: An image forming device includes: a sheet feeder that feeds a sheet; a controller that: discriminates a sheet type of the sheet, and receives a user input to specify a sheet type; and an image forming device that has two setting modes including an automatic discrimination mode in which an image is formed based on the discriminated sheet type and a user specified mode in which an image is formed based on the sheet type specified by the user input. The controller automatically switches one of the two setting modes to the other based on a defined condition.
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公开(公告)号：US20220283532A1
公开(公告)日：2022-09-08
申请号：US17685035
申请日：2022-03-02
Applicant: Konica Minolta, Inc.
Inventor： Masahiro Kamiya , Toshikazu Higashi , Yasuhiro Ishihara , Shigetaka Kato , Katsuhide Sakai
Abstract: An image forming device includes: a sheet feeder that feeds a sheet; a controller that: discriminates a sheet type of the sheet, and receives a user input to specify a sheet type; and an image forming device that has two setting modes including an automatic discrimination mode in which an image is formed based on the discriminated sheet type and a user specified mode in which an image is formed based on the sheet type specified by the user input. The controller automatically switches one of the two setting modes to the other based on a defined condition.
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公开(公告)号：US11022923B2
公开(公告)日：2021-06-01
申请号：US16202789
申请日：2018-11-28
Applicant: KONICA MINOLTA, INC.
Inventor： Shota Igo , Masahiro Kamiya , Katsuyuki Ikuta , Toshio Tsuboi , Tatsuya Eguchi
IPC: G03G15/00
Abstract: An image forming apparatus includes: a housing part that is capable of housing a plurality of recording materials in such a manner that one recording material is put on another; a transport part that transports a recording material from the housing part; and a hardware processor that detects a kind of the recording material transported by the transport part, detects an amount of the recording materials housed in the housing part, detects replacement of recording materials housed in the housing part, or addition of recording materials in the housing part, on the basis of a result of the detection by the hardware processor, and, on the basis of a result of the detection by the hardware processor, switches whether or not to execute, by the hardware processor, the kind detection of the recording materials housed in the housing part.
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Patent Agency Ranking
公开(公告)号：US10659641B2
公开(公告)日：2020-05-19
申请号：US16409492
申请日：2019-05-10
Applicant: Konica Minolta, Inc.
Inventor： Katsuyuki Ikuta , Masahiro Kamiya , Shota Igo
Abstract: Disclosed is an image forming apparatus, which may execute a job including printing an image. The disclosed image forming apparatus may include: a printer; a detector that may detect a property of a printing paper sheet, the printing paper sheet being a paper sheet used by the printer in the printing; and a determinator that may, on the basis of the property detected by the detector and a situation of the job, determine conditions for executing the printing.
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公开(公告)号：US09052660B2
公开(公告)日：2015-06-09
申请号：US14169653
申请日：2014-01-31
Applicant: KONICA MINOLTA, INC.
Inventor： Hidenori Mine , Takahiro Tsujimoto , Masahiro Kamiya , Yutaka Yamamoto , Nobuhiro Matsuo , Seiichi Kirikubo
CPC classification number: G03G15/5004 , G03G15/70 , G03G15/80
Abstract: An image forming apparatus includes a timing roller for conveying paper in the image forming apparatus, a first motor receiving supply of electric power from a power source for driving the timing roller, a second motor receiving supply of electric power from the power source, a sensor for detecting whether a jam occurs at the conveyance roller, a drive relay for cutting off supply of electric power from the power source to the first and second motors, if occurrence of a jam is detected, and a control circuit for controlling an operating state of the second motor such that regenerative power produced at the first motor due to rotation of the conveyance roller is supplied to the second motor, if occurrence of a jam is detected.
Abstract translation: 图像形成装置包括用于在图像形成装置中传送纸张的定时辊，第一电动机从用于驱动定时辊的电源接收电力供应，第二电动机从电源接收电力供应，传感器 用于检测在输送辊处是否发生卡纸;驱动继电器，用于切断从电源向第一和第二电动机供电的电力，如果检测到发生卡纸;以及控制电路，用于控制运行状态 如果检测到发生卡纸，则第二电动机使得由于传送辊的旋转而在第一电动机处产生的再生电力被提供给第二电动机。
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公开(公告)号：US12291421B2
公开(公告)日：2025-05-06
申请号：US17808729
申请日：2022-06-24
Applicant: KONICA MINOLTA, INC.
Inventor： Yasuhiro Ishihara , Toshikazu Higashi , Masahiro Kamiya , Shigetaka Kato , Katsuhide Sakai
Abstract: An image forming apparatus includes: a sheet feeding conveyor that feeds and conveys a recording medium to a conveyance path; an image former that performs image formation on the recording medium; a medium sensor that is disposed on an upstream side of the recording medium from the image former on the conveyance path and measures one or more sheet physical properties regarding the recording medium conveyed; a first hardware processor that determines a type of the recording medium on a basis of the sheet physical properties measured by the medium sensor; a second hardware processor that determines conveyance performance for the recording medium; and a third hardware processor that determines whether or not to perform the image formation on a basis of the conveyance performance in a case where the type of the recording medium determined by the first hardware processor is a type out of product specifications.
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公开(公告)号：US12276931B2
公开(公告)日：2025-04-15
申请号：US18197890
申请日：2023-05-16
Applicant: Konica Minolta Inc.
Inventor： Masahiro Nonoyama , Masahiro Kamiya , Katsuhide Sakai , Junichi Masuda , Taku Kimura
IPC: G03G15/00
Abstract: An image formation apparatus includes: an image former that forms an image on a recording medium delivered along a predetermined delivery path and outputs the recording medium; a first hardware processor that judges whether or not the recording medium is an envelope; a second hardware processor that acquires a basis weight of the recording medium; a third hardware processor that determines control for when an image is formed on the recording medium on the basis of a judgment result from the first hardware processor and a basis weight acquired by the second hardware processor; and a fourth hardware processor that controls operation of the image former on the basis of a determination result from the third hardware processor.
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公开(公告)号：US11703789B2
公开(公告)日：2023-07-18
申请号：US17716677
申请日：2022-04-08
Applicant: Konica Minolta Inc.
Inventor： Masahiro Nonoyama , Masahiro Kamiya , Katsuhide Sakai , Junichi Masuda , Taku Kimura
IPC: G03G15/00
CPC classification number: G03G15/5029
Abstract: An image formation apparatus includes: an image former that forms an image on a recording medium delivered along a predetermined delivery path; a first hardware processor that judges whether or not the recording medium is an envelope; a second hardware processor that acquires a basis weight of the envelope; a third hardware processor that determines, in case the first hardware processor judges that the recording medium is the envelope, control for forming an image on the envelope by the image former on the basis of the basis weight of the envelope acquired by the second hardware processor.
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