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    • 3. 发明申请
    • Image forming apparatus
    • 图像形成装置
    • US20060177236A1
    • 2006-08-10
    • US11335876
    • 2006-01-19
    • Tsuyoshi KowariAkihiko KoyamaYasushige Hori
    • Tsuyoshi KowariAkihiko KoyamaYasushige Hori
    • G03G15/00
    • G03G15/5004Y10T307/858
    • An image forming apparatus for forming an image with an electrophotographic process, that includes: a power source; a first drive unit having a capacitative load and driving each part of the apparatus; a second drive unit having a capacitative load and driving each part of the apparatus; and a power supply control circuit that is provided on a power supply path between the power source and the second drive unit, that switches whether or not electric power is supplied to the second drive unit. The power supply control circuit includes: a field-effect transistor with its source connected to the power source side of the power supply path, and its drain connected to the second drive unit side of the power supply path; a first resistive element connected between the field-effect transistor's gate and its source; a second resistive element and a capacitative element that are connected in parallel with the first resistive element, and connected with each other in series between the gate and the source.
    • 一种用电子照相工艺形成图像的图像形成装置,包括:电源; 第一驱动单元,具有电容性负载并驱动所述装置的每个部分; 第二驱动单元,具有电容性负载并驱动设备的每个部分; 以及电源控制电路,其设置在电源和第二驱动单元之间的电源路径上,切换是否向第二驱动单元供电。 电源控制电路包括:场效应晶体管,其源极连接到电源路径的电源侧,其漏极连接到电源路径的第二驱动单元侧; 连接在场效应晶体管的栅极与其源极之间的第一电阻元件; 第二电阻元件和电容元件,其与第一电阻元件并联连接,并且在栅极和源极之间串联连接。
    • 4. 发明授权
    • Image forming apparatus
    • 图像形成装置
    • US07459805B2
    • 2008-12-02
    • US11335876
    • 2006-01-19
    • Tsuyoshi KowariAkihiko KoyamaYasushige Hori
    • Tsuyoshi KowariAkihiko KoyamaYasushige Hori
    • H01H35/00
    • G03G15/5004Y10T307/858
    • An image forming apparatus for forming an image with an electrophotographic process, that includes: a power source; a first drive unit having a capacitative load and driving each part of the apparatus; a second drive unit having a capacitative load and driving each part of the apparatus; and a power supply control circuit that is provided on a power supply path between the power source and the second drive unit, that switches whether or not electric power is supplied to the second drive unit. The power supply control circuit includes: a field-effect transistor with its source connected to the power source side of the power supply path, and its drain connected to the second drive unit side of the power supply path; a first resistive element connected between the field-effect transistor's gate and its source; a second resistive element and a capacitative element that are connected in parallel with the first resistive element, and connected with each other in series between the gate and the source.
    • 一种用电子照相工艺形成图像的图像形成装置,包括:电源; 第一驱动单元,具有电容性负载并驱动所述装置的每个部分; 第二驱动单元,具有电容性负载并驱动设备的每个部分; 以及电源控制电路,其设置在电源和第二驱动单元之间的电源路径上,切换是否向第二驱动单元供电。 电源控制电路包括:场效应晶体管,其源极连接到电源路径的电源侧,其漏极连接到电源路径的第二驱动单元侧; 连接在场效应晶体管的栅极与其源极之间的第一电阻元件; 第二电阻元件和电容元件,其与第一电阻元件并联连接,并且在栅极和源极之间串联连接。