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公开(公告)号：US09927759B2
公开(公告)日：2018-03-27
申请号：US15441382
申请日：2017-02-24
Applicant: Konica Minolta, Inc.
Inventor： Toru Kasamatsu , Mikiyuki Aoki , Kouei Cho
CPC classification number: G03G15/80 , H02M1/08 , H02M1/4208 , H02M1/4225 , H02M3/33561 , H02M3/33592 , H02M2001/0032 , H02M2001/0048 , H02M2001/008 , H02M2001/009 , Y02B70/126 , Y02B70/1475 , Y02B70/1491 , Y02B70/16
Abstract: A first rectification circuit includes a bypass element connected to both ends of a rectification element. The bypass element is smaller in voltage drop amount than the rectification element. A power supply device is configured to perform switching between a first mode and a second mode based on at least one of information showing a magnitude of electric power that is being supplied to a load and information showing a magnitude of electric power that is to be supplied to the load. In the first mode, an AC voltage is rectified in a path including the rectification element. In the second mode, the AC voltage is rectified in a path including the bypass element.
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公开(公告)号：US20170271994A1
公开(公告)日：2017-09-21
申请号：US15456729
申请日：2017-03-13
Applicant: Konica Minolta, Inc.
Inventor： Kouei Cho , Mikiyuki Aoki , Toru Kasamatsu
IPC: H02M3/335
CPC classification number: H02M3/33523 , H02M3/33507 , H02M2001/0006
Abstract: A power supply device having a transformer and a control circuit for controlling a power input to the transformer in accordance with a set value of an output voltage is provided. The power supply device includes an auxiliary winding provided in the transformer and a control power supply circuit configured to rectify AC power produced in the auxiliary winding to output a control voltage for operating the control circuit. The control power supply circuit includes a smoothing capacitor which is connected between output terminals for the control voltage and is to be charged with power obtained by rectifying the AC power, and a charge thinning circuit configured to intermittently charge the smoothing capacitor so that a voltage value between both ends of the smoothing capacitor reaches a set value of the control voltage.
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3.发明授权Apparatus for detecting an abnormal circumstance at a connection between the apparatus and an attached detachable unit 有权一种装置，用于检测设备和附接的可拆卸单元之间的连接处的异常情况公开(公告)号：US09372470B2
公开(公告)日：2016-06-21
申请号：US14573645
申请日：2014-12-17
Applicant: KONICA MINOLTA, INC.
Inventor： Yohei Yamada , Toru Kasamatsu , Mikiyuki Aoki , Kouei Cho
CPC classification number: G03G21/1652 , G03G15/0863 , G03G15/553
Abstract: The apparatus includes first and second terminals, an electrical conductor placed around at least the second terminal, a first current applying unit, an abnormal circumstances determining unit, a second current applying unit, and an informing unit. The first current applying unit applies current between the first terminal and the second terminal. The abnormal circumstances determining unit determines whether there is an abnormal circumstance at the connection between the apparatus and the unit side circuit, under the condition that the current is applied by the first current applying unit. The second current applying unit applies current between the first terminal and the second terminal, in case that the abnormal circumstances determining unit determined that there is not an abnormal circumstance of the connection. The informing unit informs the abnormal circumstance of the connection, in case that the abnormal circumstances determining unit determined that there is the abnormal circumstance of the connection.
Abstract translation: 该装置包括第一和第二端子，至少设置在第二端子周围的电导体，第一电流施加单元，异常情况判定单元，第二电流施加单元和通知单元。 第一电流施加单元在第一端子和第二端子之间施加电流。 在由第一电流施加单元施加电流的条件下，异常情况确定单元确定设备和单元侧电路之间的连接是否存在异常情况。 第二电流施加单元在异常情况确定单元确定没有连接的异常情况的情况下，在第一端子和第二端子之间施加电流。 如果异常情况确定单元确定存在连接的异常情况，通知单元通知连接的异常情况。
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公开(公告)号：US10069425B2
公开(公告)日：2018-09-04
申请号：US15456729
申请日：2017-03-13
Applicant: Konica Minolta, Inc.
Inventor： Kouei Cho , Mikiyuki Aoki , Toru Kasamatsu
IPC: H02M3/335
Abstract: A power supply device having a transformer and a control circuit for controlling a power input to the transformer in accordance with a set value of an output voltage is provided. The power supply device includes an auxiliary winding provided in the transformer and a control power supply circuit configured to rectify AC power produced in the auxiliary winding to output a control voltage for operating the control circuit. The control power supply circuit includes a smoothing capacitor which is connected between output terminals for the control voltage and is to be charged with power obtained by rectifying the AC power, and a charge thinning circuit configured to intermittently charge the smoothing capacitor so that a voltage value between both ends of the smoothing capacitor reaches a set value of the control voltage.
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公开(公告)号：US20170261910A1
公开(公告)日：2017-09-14
申请号：US15441382
申请日：2017-02-24
Applicant: Konica Minolta, Inc.
Inventor： Toru Kasamatsu , Mikiyuki Aoki , Kouei Cho
CPC classification number: G03G15/80 , H02M1/08 , H02M1/4208 , H02M1/4225 , H02M3/33561 , H02M3/33592 , H02M2001/0032 , H02M2001/0048 , H02M2001/008 , H02M2001/009 , Y02B70/126 , Y02B70/1475 , Y02B70/1491 , Y02B70/16
Abstract: A first rectification circuit includes a bypass element connected to both ends of a rectification element. The bypass element is smaller in voltage drop amount than the rectification element. A power supply device is configured to perform switching between a first mode and a second mode based on at least one of information showing a magnitude of electric power that is being supplied to a load and information showing a magnitude of electric power that is to be supplied to the load. In the first mode, an AC voltage is rectified in a path including the rectification element. In the second mode, the AC voltage is rectified in a path including the bypass element.
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Patent Agency Ranking
公开(公告)号：US20130294789A1
公开(公告)日：2013-11-07
申请号：US13887795
申请日：2013-05-06
Applicant: KONICA MINOLTA, INC.
Inventor： Munehiro NATSUME , Teruhiko Toyoizumi , Nobuhiro Matsuo , Kouei Cho
CPC classification number: G03G15/0258 , G03G15/0189 , G03G15/0266 , G03G15/0291 , G03G21/206 , G03G2215/0132 , G03G2215/0164
Abstract: An image forming apparatus having; an electrostatic latent image support; a charger for charging the electrostatic latent image support; an exposure unit for exposing the electrostatic latent image support with a light beam to form an electrostatic latent image; a development unit for developing the electrostatic latent image into a toner image; a sheet feeding unit for feeding a recording sheet in an image forming operation; a transfer member for transferring the toner image to the recording sheet; a fuser for fusing the toner image onto the recording sheet; and a high-voltage power supply circuit for, in an image forming operation, applying a plurality of bias voltages at least to the charger and to the development unit, wherein the high-voltage power supply circuit supplies a high voltage only to the charger in an operation in an ion generation mode so as to cause the charger to generate ions.
Abstract translation: 一种图像形成装置，具有： 静电潜像载体; 用于对静电潜像载体进行充电的充电器; 曝光单元，用于用光束曝光所述静电潜像载体以形成静电潜像; 用于将静电潜像显影成调色剂图像的显影单元; 用于在成像操作中馈送记录纸的供纸单元; 用于将调色剂图像转印到记录片材的转印部件; 定影器，用于将调色剂图像定影到记录纸上; 以及用于在图像形成操作中至少向充电器和显影单元施加多个偏置电压的高压电源电路，其中高压电源电路仅向充电器提供高电压 离子发生模式的操作，以使充电器产生离子。
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7.发明授权公开(公告)号：US12210306B2
公开(公告)日：2025-01-28
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
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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公开(公告)号：US20180109693A1
公开(公告)日：2018-04-19
申请号：US15717979
申请日：2017-09-28
Applicant: Konica Minolta, Inc.
Inventor： Takashi Watanabe , Kazutoshi Yoshimura , Kiyohito Tsujihara , Akinori Kimata , Shiro Umeda , Kouei Cho
IPC: H04N1/00
CPC classification number: H04N1/00909 , H04N1/00588 , H04N1/00641 , H04N1/0071 , H04N1/00748
Abstract: An image reading apparatus for separating and conveying documents from a bundle of documents, causing the document to pass through a reading position, and reading an image from the document, includes: a reading translucent plate; a rotation member capable of rotating around a shaft; and a rotation driver that rotates the rotation member, wherein in the rotation member, each of: a cleaning member; a white reference area; and an end portion detection area is formed partially with regard to a circumferential direction, the cleaning member and the end portion detection area are arranged adjacent to each other, the rotation driver is arranged so that the end portion detection area faces an opposing surface, and the rotation member is rotated in a paper interval period from when a trailing edge of the document passes the reading position to when a leading edge of a subsequent document reaches the reading position,
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公开(公告)号：US09645541B2
公开(公告)日：2017-05-09
申请号：US14619267
申请日：2015-02-11
Applicant: KONICA MINOLTA, INC.
Inventor： Kouei Cho , Toru Kasamatsu , Mikiyuki Aoki , Yohei Yamada
CPC classification number: G03G15/80 , G03G15/5004 , H02M3/33507 , H02M2001/009
Abstract: Image forming apparatus comprises an electric power supply circuit board, an electric power control unit, functional circuits, and an electrical power saving circuit. The electric power control unit executes constant voltage control, to make electrical potential of a remote sensing location constant. The functional circuits are connected with the electric power supply circuit board. The electrical power saving circuit switches the state of functional circuits between the state in which they are provided with electric power and the state in which they are not provided with electric power. The electrical power saving circuit sets the contact point of the input side of the circuit, in which the consumption electrical current or the behavior guarantee minimum electrical voltage is the largest, out of the electrical power saving circuit and functional circuits provided with electric power, as the remote sensing location.
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10.发明授权Electric power supply control device which can increase power converting efficiency 有权电力供应控制装置，可提高电力转换效率公开(公告)号：US09335710B2
公开(公告)日：2016-05-10
申请号：US14855219
申请日：2015-09-15
Applicant: KONICA MINOLTA, INC.
Inventor： Mikiyuki Aoki , Taku Kimura , Yohei Yamada , Morio Kinoshita , Toru Kasamatsu , Kouei Cho
CPC classification number: G03G15/80 , G03G2215/0132 , H02M1/36 , H02M3/156 , H02M3/24 , H02M3/33523 , H02M2001/0032 , H02M2001/0035 , H02M2001/0054 , H02M2001/007 , H02M2001/008 , Y02B70/1491 , Y02B70/16
Abstract: An electric power supply control device comprises a first converter, at least one second converter, and an electrical voltage control unit. The second converter can work in intermittent oscillation, and converts outputting electrical voltage from the first converter. The electrical voltage control unit controls the outputting electrical voltage of the first converter, so that the outputting electrical voltage is equal to or less than a minimum value of upper limits of operating electrical voltage of the second converter, and is more than or equal to a maximum value of lower limits of operating electrical voltage of the second converter, and at least one of the second converter performs low electric power behavior.
Abstract translation: 电源控制装置包括第一转换器，至少一个第二转换器和电压控制单元。 第二转换器可工作在间歇振荡中，并转换为从第一转换器输出电压。 电压控制单元控制第一转换器的输出电压，使得输出电压等于或小于第二转换器的工作电压的上限的最小值，并且大于或等于a 第二转换器的工作电压的下限的最大值，以及第二转换器中的至少一个执行低电力行为。
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