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：US20160327890A1

公开(公告)日：2016-11-10

申请号：US15145978

申请日：2016-05-04

Applicant: KONICA MINOLTA, INC.

Inventor： Takanobu SHIKI ,  Tadayuki UEDA ,  Eiji NISHIKAWA ,  Yukinobu IGUCHI ,  Satoshi MIYAJIMA ,  Yohei YAMADA

IPC: G03G15/20

CPC classification number: G03G15/2039 ,  G03G15/6594 ,  G03G2215/00738

Abstract: An image forming apparatus detects that the temperature of a fixing member reaches a lower limit value at which the temperature once reduced by the start of a heating and fixing process to a paper turns to rise, after an image forming operation starts, and determines the type of the paper based on at least one of an elapsed time from a predetermined reference time point after the image forming operation starts to a time point at which it is detected that the temperature reaches the lower limit value, and a temperature difference between the temperature of the fixing member at the reference time point and the lower limit value.

Abstract translation: 图像形成装置检测在图像形成操作开始之后，定影构件的温度达到在开始加热定影处理之后一度减少到纸张的温度上升的下限值，并且确定类型 基于从图像形成操作开始之后的预定基准时间点到检测到温度达到下限值的时间点的经过时间中的至少一个，以及温度达到下限值之间的温度差 基准时刻的固定部件和下限值。

公开(公告)号：US20150077496A1

公开(公告)日：2015-03-19

申请号：US14490044

申请日：2014-09-18

Applicant: KONICA MINOLTA, INC.

Inventor： Yohei YAMADA ,  Tatsuya EGUCHI ,  Akimasa ISHIKAWA

IPC: B41J2/385

CPC classification number: G03G15/043

Abstract: An image forming apparatus that forms a color image by layering toner images of different colors includes: a photoreceptor on which an electrostatic latent image is formed through charging and exposure; an exposure unit performing exposure-scanning on the photoreceptor in accordance with image signal; an intensity determination unit determining exposure intensity according to image forming condition; and a timing determination unit determining a timing of inputting image signal for each scanning line, wherein the exposure unit has a delay duration differing depending on the exposure intensity and being from input of image signal of each pixel to be exposed to exposure of the pixel at the exposure intensity, and the timing determination unit obtains the delay duration corresponding to the exposure intensity, and determines the timing such that image signal of an initial pixel to be initially exposed is input the delay duration before the initial pixel is exposed.

Abstract translation: 通过分层不同颜色的调色剂图像形成彩色图像的图像形成装置包括：通过充电和曝光在其上形成静电潜像的感光体; 曝光单元根据图像信号对感光体进行曝光扫描; 强度确定单元，根据图像形成条件确定曝光强度; 以及定时确定单元，确定针对每个扫描线输入图像信号的定时，其中所述曝光单元具有根据所述曝光强度而不同的延迟持续时间，并且来自所述像素的每个像素的图像信号的输入以暴露于所述像素的曝光 曝光强度和定时确定单元获得与曝光强度对应的延迟持续时间，并且确定定时，使得最初曝光的初始像素的图像信号被输入到初始像素曝光之前的延迟持续时间。

公开(公告)号：US20160327889A1

公开(公告)日：2016-11-10

申请号：US15135027

申请日：2016-04-21

Applicant: Konica Minolta, Inc.

Inventor： Takanobu SHIKI ,  Tadayuki UEDA ,  Eiji NISHIKAWA ,  Yukinobu IGUCHI ,  Satoshi MIYAJIMA ,  Yohei YAMADA

IPC: G03G15/20

CPC classification number: G03G15/2039 ,  G03G15/205

Abstract: In an image forming apparatus according to the present invention, when an image forming operation is started from a standby state, electric power is supplied to a heater by switching to a first fixing control to turn on and off the heater to heat a heating roller with a fixed duty ratio based on the detected temperature of the heating roller, and thereafter, when detecting a state that the falling detected temperature reaches a lower limit value at which the detected temperature turns to rising, electric power is supplied to the heater by switching to a second fixing control which changes a duty ratio in accordance with a temperature difference between the detected temperature and a target control temperature.

Abstract translation: 在根据本发明的图像形成装置中，当从待机状态开始图像形成操作时，通过切换到第一定影控制来将加热器供电到加热器，以加热加热器以加热加热辊， 基于加热辊的检测温度的固定占空比，此后，当检测到下降的检测温度达到检测温度升高的下限值的状态时，通过切换到 第二定影控制，其根据检测温度和目标控制温度之间的温度差改变占空比。

公开(公告)号：US20160209793A1

公开(公告)日：2016-07-21

申请号：US15002110

申请日：2016-01-20

Applicant: KONICA MINOLTA, INC.

Inventor： Yohei YAMADA ,  Mikiyuki AOKI ,  Toru KASAMATSU

IPC: G03G15/00

CPC classification number: G03G21/1875 ,  G03G15/0863 ,  G03G2221/1823 ,  G03G2221/1892

Abstract: A unit checking device is provided which checks whether a unit detachably provided to a device body is new or old. The unit checking device includes a transistor for checking provided in the unit and configured to be destructed by power supplied from the device body; and an inspection device provided in the device body and configured to determine whether or not the transistor is destructed by applying a voltage to the transistor.

Abstract translation: 提供了一种单元检查装置，其检查可拆卸地提供给装置主体的单元是新的还是旧的。 单元检查装置包括用于检查的晶体管，该晶体管被设置在该单元中并且被配置为被从设备主体提供的电力破坏; 以及检查装置，其设置在所述器件主体中，并且被配置为通过向所述晶体管施加电压来确定所述晶体管是否被破坏。

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。

公开(公告)号：US20180048788A1

公开(公告)日：2018-02-15

申请号：US15659116

申请日：2017-07-25

Applicant: Konica Minolta, Inc.

Inventor： Kenichi HAYASHI ,  Yohei YAMADA ,  Yukinobu IGUCHI ,  Satoru SASAKI

IPC: H04N1/60 ,  G01K11/12 ,  H04N1/00

CPC classification number: H04N1/6044 ,  G01K11/12 ,  H04N1/00814 ,  H04N1/6033 ,  H04N1/6091 ,  H04N1/6094 ,  H04N2201/0094

Abstract: An image forming system includes: an image forming apparatus; and an image reading apparatus that reads an image, wherein temperature correction patches with the same color are formed at a reference position and a comparison position, the image reading apparatus includes: a scanner that reads respective colors of the temperature correction patches at the reference position and at the comparison position; and a colorimeter that performs colorimetry to the temperature correction patch at the reference position, the image forming apparatus includes: a detector that detects a temperature of the temperature correction patch at the reference position; a first calculator that calculates a color difference of color values of the temperature correction patches at the reference position and at the comparison position; and a second calculator that calculates a temperature distribution, and as a temperature difference between a first position and a second position increases, the color difference increases.

公开(公告)号：US20150256079A1

公开(公告)日：2015-09-10

申请号：US14643398

申请日：2015-03-10

Applicant: Konica Minolta, Inc.

Inventor： Taku KIMURA ,  Mikiyuki AOKI ,  Hideki NAKAMURA ,  Masahiro NONOYAMA ,  Junichi MASUDA ,  Yohei YAMADA

IPC: H02J1/00 ,  G03G15/00

CPC classification number: G03G15/80 ,  H02M3/33507 ,  H02M7/217 ,  H02M2001/0035 ,  H02M2001/007 ,  H02M2001/008 ,  Y02B70/16

Abstract: An electric power supply control device comprises AC/DC converter, DC/DC converters, and an output electrical voltage monitor unit of the AC/DC converter. When output electrical voltage of the AC/DC converter increases to the first preset value P1, the AC/DC converter stops the convert. When the output electrical voltage decreases to the second preset value P2, the AC/DC converter restarts the convert. The first preset value P1 is equal to or less than the lowest value, out of the upper limit values in electrical voltage ranges in which the DC/DC converters CV1 and CV2 can work. The second preset value P2 is more than or equal to the highest value, out of the lower limit values in electrical voltage ranges in which the DC/DC converters CV1 and CV2 can work.

Abstract translation: 电源控制装置包括AC / DC转换器，DC / DC转换器和AC / DC转换器的输出电压监视器单元。 当AC / DC转换器的输出电压升高到第一预设值P1时，AC / DC转换器停止转换。 当输出电压降至第二预设值P2时，AC / DC转换器重新启动转换。 在DC / DC转换器CV1和CV2可以工作的电压范围内，第一预置值P1等于或小于最低值。 在DC / DC转换器CV1和CV2可以工作的电压范围内，第二预设值P2大于或等于最大值。