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

IPC: G03G15/00 ,  G06K15/00

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.

公开(公告)号：US20230008381A1

公开(公告)日：2023-01-12

申请号：US17854777

申请日：2022-06-30

Applicant: Konica Minolta, Inc.

Inventor： Yuta TACHIBANA ,  Hiroyuki YOSHIKAWA ,  Kazumichi YOSHIDA ,  Satoshi MIYAJIMA ,  Kouei CHO

IPC: H02P6/16 ,  H02P21/22

Abstract: A rotation detector includes a motor, a current detector and a hardware processor. The motor includes coils of two or more phases and a rotor. The current detector detects currents flowing in coils of at least two phases among the coils of two or more phases. The hardware processor estimates an initial position of the rotor based on current values of the currents detected by the current detector to start the motor, controls an energization pattern on the phases to rotate and start the motor based on the estimated initial position, and determines whether the rotor stops or is rotating before completing the estimation of the initial position.

公开(公告)号：US20200084321A1

公开(公告)日：2020-03-12

申请号：US16534817

申请日：2019-08-07

Applicant: Konica Minolta Inc.

Inventor： Shiro UMEDA ,  Masayuki WATANABE ,  Takeshi ISHIDA ,  Akinori KIMATA ,  Takashi WATANABE ,  Kouei CHO

IPC: H04N1/00

Abstract: An image processing system includes: a mobile terminal; and a server apparatus, wherein the mobile terminal includes a camera, a display that displays an apparatus image of an image forming apparatus, a microphone that collects sound output from the image forming apparatus, and a first hardware processor that controls the camera, the microphone and the display, the server apparatus includes a second hardware processor that controls the server apparatus, the second hardware processor performs identifying a portion of the image forming apparatus, setting the portion identified as a sound collection target position, and clipping a partial image including the sound collection target position and representing an outline of a part of the image forming apparatus, from a main body image generated in advance as an image representing an outer shape of the image forming apparatus, and the display displays the partial image.

公开(公告)号：US20150268617A1

公开(公告)日：2015-09-24

申请号：US14662865

申请日：2015-03-19

Applicant: Konica Minolta, Inc.

Inventor： Toru KASAMATSU ,  Mikiyuki AOKI ,  Yohei YAMADA ,  Kouei CHO

IPC: G03G15/06

CPC classification number: G03G15/80 ,  G03G15/065

Abstract: An image forming apparatus having image supporting members and developing devices provided for a plurality of colors respectively, and a developing bias source. The developing bias source includes DC power circuits provided for the colors respectively, an AC power circuit provided for use in common for all of the colors, and an element provided for at least one of the colors other than black. The developing bias source generates developing biases by superimposing an AC voltage output from the AC power circuit on DC voltages output from the DC power circuits and applies the developing biases to the respectively corresponding developing devices. The element maintains a constant voltage having a potential of an opposite polarity to a potential of charged toner used for the development. The developing bias source further superimposes the constant voltage on the developing bias for the at least one of the colors other than black.

Abstract translation: 具有分别设置有多种颜色的图像支持部件和显影装置的图像形成装置和显影偏压源。 显影偏压源包括分别为颜色提供的DC电源电路，为所有颜色共同使用而设置的AC电源电路，以及为黑色以外的至少一种颜色提供的元件。 显影偏压源通过将从AC电源电路输出的AC电压叠加在从DC电源电路输出的直流电压上产生显影偏压，并将显影偏压施加到相应的显影装置。 该元件保持具有与用于显影的带电调色剂的电位相反极性的电位的恒定电压。 显影偏压源进一步将恒定电压叠加在黑色以外的至少一种颜色的显影偏压上。

公开(公告)号：US20150177681A1

公开(公告)日：2015-06-25

申请号：US14573645

申请日：2014-12-17

Applicant: KONICA MINOLTA, INC.

Inventor： Yohei YAMADA ,  Toru KASAMATSU ,  Mikiyuki AOKI ,  Kouei CHO

IPC: G03G15/00

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。

公开(公告)号：US20180229956A1

公开(公告)日：2018-08-16

申请号：US15868237

申请日：2018-01-11

Applicant: KONICA MINOLTA, INC.

Inventor： Kazutoshi YOSHIMURA ,  Kiyohito TSUJIHARA ,  Akinori KIMATA ,  Takashi WATANABE ,  Shiro UMEDA ,  Kouei CHO

IPC: B65H9/00 ,  B65H3/06 ,  B65H5/06 ,  B65H7/14 ,  B65H29/12

CPC classification number: B65H9/004 ,  B65H3/06 ,  B65H5/062 ,  B65H7/02 ,  B65H7/14 ,  B65H7/20 ,  B65H29/125 ,  B65H2511/20 ,  B65H2511/414 ,  B65H2553/822 ,  B65H2701/111 ,  B65H2701/131 ,  B65H2801/06 ,  B65H2801/39 ,  H04N1/0057 ,  H04N1/00588 ,  H04N1/00602 ,  H04N1/00615 ,  H04N1/00639 ,  H04N1/0066 ,  H04N1/00718 ,  H04N1/00734 ,  H04N1/00745 ,  H04N1/00782 ,  H04N1/3878 ,  H04N2201/0094 ,  B65H2220/02 ,  B65H2220/03 ,  B65H2220/01

Abstract: Provided is a document conveyance apparatus that conveys a document along a document conveyance path including a reading position at which an image on a surface of the document is read, the document conveyance apparatus including: a hardware processor; an end detector that detects an angle of a corner portion of a front edge of the document; and an inclination detector that detects an amount of inclination of the front edge, wherein, in a case where it has been determined that the corner portion of the front edge includes a right angle portion on the basis of information obtained from the end detector, the hardware processor determines the amount of inclination of the front edge obtained from the inclination detector as an amount of inclination of the document, and performs inclination correction of the image read at the reading position.

公开(公告)号：US20180026524A1

公开(公告)日：2018-01-25

申请号：US15655986

申请日：2017-07-21

Applicant: KONICA MINOLTA, INC.

Inventor： Toru KASAMATSU ,  Mikiyuki AOKI ,  Kouei CHO

IPC: G05F5/00 ,  H02M3/28 ,  H02M1/36 ,  H02M3/335

CPC classification number: H02M1/36 ,  G03G15/80 ,  H02M3/285 ,  H02M3/33507 ,  H02M2001/0032

Abstract: A power supply device includes: a first transformer including a primary winding and a secondary winding; a first control circuit controlling a switching operation of a switch element, and cause the primary winding to generate a first AC voltage; an application circuit receiving a second AC voltage generated in the secondary winding by mutual induction with the primary winding, and apply an output voltage according to the second AC voltage to a load; a voltage detection circuit detecting a magnitude of a DC voltage obtained by rectifying the first AC voltage or the second AC voltage; and an output circuit outputting a stop signal indicating stop of the power supply device, when a result of comparison between the magnitude of the DC voltage and a threshold value set according to a magnitude of the load satisfies a predetermined condition, after reception of an instruction to stop voltage supply.

公开(公告)号：US20160085199A1

公开(公告)日：2016-03-24

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

IPC: H02J1/00 ,  G03G15/00

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。

公开(公告)号：US20150229231A1

公开(公告)日：2015-08-13

申请号：US14619267

申请日：2015-02-11

Applicant: KONICA MINOLTA, INC.

Inventor： Kouei CHO ,  Toru KASAMATSU ,  Mikiyuki AOKI ,  Yohei YAMADA

IPC: H02M7/217 ,  G03G15/00

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.

Abstract translation: 图像形成装置包括电源电路板，电力控制单元，功能电路和省电电路。 电力控制单元执行恒定电压控制，使遥感位置的电位恒定。 功能电路与电源电路板连接。 电力节省电路将功能电路的状态切换到电力供给状态和不具备电力的状态。 节电电路设置电力供给电路中的消耗电流或行为保证最小电压最大的电路的输入侧的接触点，作为 遥感位置。