Power supply apparatus having plurality of piezoelectric transformers

    公开(公告)号:US10516795B2

    公开(公告)日:2019-12-24

    申请号:US16217247

    申请日:2018-12-12

    摘要: A first rectification circuit is connected to an output side of a first piezoelectric transformer and outputs a voltage of a first polarity. A second rectification circuit is connected to an output side of the second piezoelectric transformer and outputs a voltage of a second polarity. A frequency adjustment unit is connected between the second rectification circuit and an output of the second piezoelectric transformer, and adjusts a relationship between an output voltage and a drive frequency of the second piezoelectric transformer. A driving circuit supplies a drive signal to both the first piezoelectric transformer and the second piezoelectric transformer.

    POWER SUPPLY APPARATUS HAVING PLURALITY OF PIEZOELECTRIC TRANSFORMERS

    公开(公告)号:US20190199879A1

    公开(公告)日:2019-06-27

    申请号:US16217247

    申请日:2018-12-12

    摘要: A first rectification circuit is connected to an output side of a first piezoelectric transformer and outputs a voltage of a first polarity. A second rectification circuit is connected to an output side of the second piezoelectric transformer and outputs a voltage of a second polarity. A frequency adjustment unit is connected between the second rectification circuit and an output of the second piezoelectric transformer, and adjusts a relationship between an output voltage and a drive frequency of the second piezoelectric transformer. A driving circuit supplies a drive signal to both the first piezoelectric transformer and the second piezoelectric transformer.

    Heater with insulated substrate having through holes and image heating apparatus including the heater
    3.
    发明授权
    Heater with insulated substrate having through holes and image heating apparatus including the heater 有权
    具有通孔的绝缘基板的加热器和包括加热器的图像加热装置

    公开(公告)号:US09091977B2

    公开(公告)日:2015-07-28

    申请号:US13659266

    申请日:2012-10-24

    IPC分类号: G03G15/20 H05B3/46

    摘要: The image heating apparatus includes an endless belt, a connector and a heater including an insulated substrate, a heat generating resistor, an electrode brought into contact with a contact of the connector; and a conductor provided on a surface of the insulated substrate opposite to a surface on which the electrode wherein the insulated substrate includes multiple through holes electrically connecting the electrode and the conductor to each other, in an area in which the electrode is provided, wherein the distances between a position on the electrode brought into contact with the contact and the multiple through holes are substantially equal to each other, so that burning of the through hole and conduction failure caused by the burning can be prevented.

    摘要翻译: 图像加热装置包括环形带,连接器和加热器,其包括绝缘基板,发热电阻器,与连接器的触点接触的电极; 以及设置在所述绝缘基板的与所述电极相对的表面上的导体,所述导体在所述绝缘基板的所述电极的所述电极的区域中包括将所述电极和所述导体彼此电连接的多个通孔, 与触点接触的电极上的位置和多个通孔之间的距离基本上彼此相等,从而可以防止通孔的燃烧和由燃烧引起的导电故障。

    IMAGE FORMING APPARATUS
    4.
    发明申请
    IMAGE FORMING APPARATUS 有权
    图像形成装置

    公开(公告)号:US20150139672A1

    公开(公告)日:2015-05-21

    申请号:US14541657

    申请日:2014-11-14

    IPC分类号: G03G15/20

    摘要: An image forming apparatus includes a fixing portion for heating and fixing an unfixed image formed on a recording material, the fixing portion including a cylindrical film, a heater provided in a cylindrical shape of the film, a switch portion actuatable by heat from the heater, and a protection element for shutting off electric power supplied to the heater; a DC voltage source for generating a DC voltage from commercial AC voltage source, wherein the protection element is disposed in the shape of cylinder of the film is connected in a DC circuit operable by the DC voltage source, and wherein when the switch portion is rendered off, the electric power supply to the heater is shut off.

    摘要翻译: 图像形成装置包括用于加热和固定形成在记录材料上的未定影图像的固定部分,所述固定部分包括圆柱形膜,设置在所述胶片的圆柱形状中的加热器,可通过来自所述加热器的热量致动的开关部分, 以及用于切断供给到加热器的电力的保护元件; 用于从商业交流电压源产生直流电压的直流电压源,其中所述保护元件设置在所述膜的圆筒形状中,所述直流电压源由直流电压源可操作的直流电路连接,并且其中当所述开关部分呈现时 关闭,加热器的电源被关闭。

    VOLTAGE GENERATING APPARATUS FOR STABLY CONTROLLING VOLTAGE
    5.
    发明申请
    VOLTAGE GENERATING APPARATUS FOR STABLY CONTROLLING VOLTAGE 有权
    用于稳定电压的电压发生装置

    公开(公告)号:US20150063855A1

    公开(公告)日:2015-03-05

    申请号:US14470533

    申请日:2014-08-27

    IPC分类号: G03G15/16 H02M3/157

    摘要: A negative bias circuit outputs a DC voltage of a negative polarity. A positive bias circuit outputs a DC voltage of a positive polarity. The DC voltage of the positive polarity is used, for example, as a transfer voltage, and the DC voltage of the negative polarity is used as a cleaning voltage for cleaning toner. A cycle of the clock signal in a period during which the DC voltage of the first polarity is output is longer than a cycle of the clock signal in the period during which the voltage supplied to the load transits from the DC voltage of the first polarity to the DC voltage of the first polarity.

    摘要翻译: 负偏压电路输出负极性的直流电压。 正偏置电路输出正极性的直流电压。 例如,使用正极性的直流电压作为转印电压,将负极性的直流电压用作清洁调色剂的清洗电压。 输出第一极性的直流电压的期间的时钟信号的周期长于提供给负载的电压从第一极性的直流电压转移到第一极性的直流电压的期间的时钟信号的周期, 第一极性的直流电压。

    VOLTAGE GENERATING APPARATUS AND IMAGE FORMING APPARATUS INCLUDING THE SAME
    6.
    发明申请
    VOLTAGE GENERATING APPARATUS AND IMAGE FORMING APPARATUS INCLUDING THE SAME 有权
    电压发生装置和图像形成装置,包括它们

    公开(公告)号:US20150023065A1

    公开(公告)日:2015-01-22

    申请号:US14329845

    申请日:2014-07-11

    IPC分类号: H02M3/335 G03G15/00

    摘要: Until an output voltage of a converter reaches a threshold value, a control part performs switching control, and after the output voltage reaches the threshold value, the control part performs supply voltage control while the state of a switching control signal at the time when the output voltage reaches the threshold value is maintained. Switching control is a control method in which the output voltage is adjusted by adjusting the frequency or duty ratio of the switching control signal that drives a driving part. Supply voltage control is a control method in which the output voltage is adjusted by adjusting the supply voltage that is applied to the primary side of the converter.

    摘要翻译: 在转换器的输出电压达到阈值之前,控制部分执行开关控制,并且在输出电压达到阈值之后,控制部分在输出时的开关控制信号的状态下进行电源电压控制 电压达到阈值。 开关控制是通过调节驱动驱动部的开关控制信号的频率或占空比来调整输出电压的控制方法。 电源电压控制是通过调整施加到转换器的初级侧的电源电压来调整输出电压的控制方法。

    IMAGE FORMING APPARATUS CAPABLE OF CHANGING THE NUMBER OF LIGHT RECEIVING ELEMENTS OF A LIGHT RECEIVING UNIT
    7.
    发明申请
    IMAGE FORMING APPARATUS CAPABLE OF CHANGING THE NUMBER OF LIGHT RECEIVING ELEMENTS OF A LIGHT RECEIVING UNIT 有权
    图像形成装置可以改变接收单元的光接收元件的数量

    公开(公告)号:US20140226997A1

    公开(公告)日:2014-08-14

    申请号:US14342589

    申请日:2012-09-26

    IPC分类号: G03G15/00

    摘要: An image forming apparatus includes an image forming unit configured to form a patch image on an image carrier; a light receiving unit configured to receive light reflected by the patch image irradiated with light by a light emitting unit, and including one or more light receiving elements; and a setting unit configured to set the number of the light receiving elements in the light receiving unit. The setting unit is further configured to set the number of light receiving elements for when receiving reflected light from a first patch image formed by the image forming unit and the number of light receiving elements for when receiving reflected light from a second patch image formed by the image forming unit that differs from the first patch image to different numbers.

    摘要翻译: 图像形成装置包括:图像形成单元,被配置为在图像载体上形成贴片图像; 光接收单元,被配置为接收由发光单元照射光的贴片图像反射的光,并且包括一个或多个光接收元件; 以及设置单元,被配置为设置光接收单元中的光接收元件的数量。 设置单元还被配置为设置接收来自由图像形成单元形成的第一贴片图像的反射光的光接收元件的数量和用于当从由第二贴片图像形成的第二贴片图像接收反射光时接收反射光的数量 图像形成单元,其不同于第一贴片图像到不同的数字。

    IMAGE HEATING APPARATUS
    8.
    发明申请
    IMAGE HEATING APPARATUS 审中-公开
    图像加热装置

    公开(公告)号:US20150338804A1

    公开(公告)日:2015-11-26

    申请号:US14716147

    申请日:2015-05-19

    IPC分类号: G03G15/20 H05B3/00

    摘要: An image heating apparatus includes a heater including a substrate and a heat generating element provided on the substrate; a supporting member supporting the heater, the supporting member being provided with a recess for receiving the heater; a high heat conduction member having a thermal conductivity at least in a direction parallel with a surface higher than a thermal conductivity of the substrate, the high heat conduction member being sandwiched between the heater and the supporting member. A side surface of the heater and a surface, defining the recess and opposing the side surface of the heater, of the supporting member are bonded by adhesive material with each other to fix the heater and the supporting member to each other.

    摘要翻译: 图像加热装置包括:加热器,包括基板和设置在基板上的发热元件; 支撑构件,其支撑所述加热器,所述支撑构件设置有用于接收所述加热器的凹部; 至少在与基板的导热性高于的表面平行的方向上具有导热性的高导热构件,高导热构件被夹在加热器和支撑构件之间。 加热器的侧表面和限定凹部并与加热器的侧表面相对的支撑构件的表面通过粘合材料彼此粘合以将加热器和支撑构件彼此固定。

    CONNECTOR FOR HEATER, FIXING APPARATUS AND IMAGE FORMING APPARATUS
    9.
    发明申请
    CONNECTOR FOR HEATER, FIXING APPARATUS AND IMAGE FORMING APPARATUS 审中-公开
    加热器连接器,固定装置和图像形成装置

    公开(公告)号:US20150139681A1

    公开(公告)日:2015-05-21

    申请号:US14608651

    申请日:2015-01-29

    IPC分类号: G03G15/00

    摘要: An image fixing apparatus includes a heater including a substrate, a first electrode provided on one side of the substrate and a second electrode provided on the other side of the substrate; and a connector, connected with the heater, for receiving electric power, the connector including an electrically insulative housing, and a contact terminal provided inside the housing and having first spring contact contacted to the first electrode and a second spring contact contacted to the second electrode, wherein the first spring contact and the second spring contact are disposed at positions different as seen in a direction perpendicular to a surface of the substrate.

    摘要翻译: 图像定影装置包括:加热器,包括基板,设置在基板的一侧的第一电极和设置在基板的另一侧的第二电极; 以及与所述加热器连接的用于接收电力的连接器,所述连接器包括电绝缘壳体和设置在所述壳体内的接触端子,并且具有与所述第一电极接触的第一弹簧接触件和与所述第二电极接触的第二弹簧接触件 ,其中所述第一弹簧触点和所述第二弹簧触点设置在垂直于所述基板的表面的方向上看不同的位置。

    CONNECTOR FOR HEATER, FIXING APPARATUS AND IMAGE FORMING APPARATUS

    公开(公告)号:US20130336672A1

    公开(公告)日:2013-12-19

    申请号:US13890501

    申请日:2013-05-09

    IPC分类号: G03G21/18

    摘要: An image fixing apparatus includes a heater including a substrate, a first electrode provided on one side of the substrate and a second electrode provided on the other side of the substrate; and a connector, connected with the heater, for receiving electric power, the connector including an electrically insulative housing, and a contact terminal provided inside the housing and having first spring contact contacted to the first electrode and a second spring contact contacted to the second electrode, wherein the first spring contact and the second spring contact are disposed at positions different as seen in a direction perpendicular to a surface of the substrate.