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    • 5. 发明授权
    • Image forming apparatus with high-voltage power supply
    • 具有高压电源的图像形成装置
    • US08086126B2
    • 2011-12-27
    • US12327334
    • 2008-12-03
    • Tatsuya HotogiShimpei MatsuoEijiro Ohashi
    • Tatsuya HotogiShimpei MatsuoEijiro Ohashi
    • G03G15/08G03G15/00
    • G03G15/0851G03G15/0856G03G15/086
    • An image forming apparatus comprises a developer carrier (101) for developing an electrostatic latent image by supplying an image carrier with developer inside a developer container (100); an electrode member (104) opposing the developer carrier (101) via a space accommodating the developer; an inverter (301); a transformer (302) for transforming an AC voltage from the inverter (301); a rectifying circuit (303) for rectifying the output of the transformer and generating a DC voltage for image formation; a DC voltage applying unit (306) for applying the AC voltage, which is output from the transformer, to the electrode member (104); and a developer remaining-amount detection unit (305) for detecting amount of developer remaining inside the developer container (100) based upon electrostatic capacitance between the developer carrier (101) and electrode member (104).
    • 图像形成装置包括显影剂载体(101),用于通过在显影剂容器(100)内向图像载体提供显影剂来显影静电潜像; 经由容纳显​​影剂的空间与显影剂载体(101)相对的电极构件(104); 逆变器(301); 变换器(302),用于变换来自逆变器(301)的交流电压; 整流电路(303),用于整流变压器的输出并产生用于图像形成的DC电压; 直流电压施加单元,用于将从变压器输出的交流电压施加到电极构件; 和显影剂剩余量检测单元(305),用于根据显影剂载体(101)和电极构件(104)之间的静电电容检测显影剂容器(100)内剩余的显影剂的量。
    • 6. 发明申请
    • IMAGE FORMING APPARATUS
    • 图像形成装置
    • US20090154942A1
    • 2009-06-18
    • US12327334
    • 2008-12-03
    • Tatsuya HotogiShimpei MatsuoEijiro Ohashi
    • Tatsuya HotogiShimpei MatsuoEijiro Ohashi
    • G03G15/08
    • G03G15/0851G03G15/0856G03G15/086
    • An image forming apparatus comprises a developer carrier (101) for developing an electrostatic latent image by supplying an image carrier with developer inside a developer container (100); an electrode member (104) opposing the developer carrier (101) via a space accommodating the developer; an inverter (301); a transformer (302) for transforming an AC voltage from the inverter (301); a rectifying circuit (303) for rectifying the output of the transformer and generating a DC voltage for image formation; a DC voltage applying unit (306) for applying the AC voltage, which is output from the transformer, to the electrode member (104); and a developer remaining-amount detection unit (305) for detecting amount of developer remaining inside the developer container (100) based upon electrostatic capacitance between the developer carrier (101) and electrode member (104).
    • 图像形成装置包括显影剂载体(101),用于通过在显影剂容器(100)内向图像载体提供显影剂来显影静电潜像; 经由容纳显​​影剂的空间与显影剂载体(101)相对的电极构件(104); 逆变器(301); 变换器(302),用于变换来自逆变器(301)的交流电压; 整流电路(303),用于整流变压器的输出并产生用于图像形成的DC电压; 直流电压施加单元,用于将从变压器输出的交流电压施加到电极构件; 和显影剂剩余量检测单元(305),用于根据显影剂载体(101)和电极构件(104)之间的静电电容检测显影剂容器(100)内剩余的显影剂的量。
    • 7. 发明授权
    • Image forming apparatus
    • 图像形成装置
    • US07991313B2
    • 2011-08-02
    • US12416834
    • 2009-04-01
    • Tatsuya HotogiShimpei Matsuo
    • Tatsuya HotogiShimpei Matsuo
    • G03G15/06G03G15/00H01L41/00
    • G03G15/5004G03G15/0856G03G15/086G03G2215/0634
    • An image forming apparatus includes an alternating-current high-voltage power supply generating an alternating-current bias for detection of the remaining amount of toner. The alternating-current high-voltage power supply includes a piezoelectric transformer, a piezoelectric-transformer driving unit, a piezoelectric-transformer driving-signal generating unit, a voltage detecting unit, a voltage setting unit, and an controlling unit that feeds back a difference signal between a detection level signal supplied from a detection signal detecting unit and a setting signal supplied from the voltage setting unit to the piezoelectric-transformer driving-signal generating unit to control an output voltage from the piezoelectric-transformer.
    • 图像形成装置包括产生用于检测调色剂剩余量的交流偏压的交流高压电源。 交流高压电源包括压电变压器,压电变压器驱动单元,压电变压器驱动信号发生单元,电压检测单元,电压设定单元和反馈差分的控制单元 从检测信号检测单元提供的检测电平信号与从电压设定单元提供给压电变压器驱动信号产生单元的设置信号之间的信号,以控制来自压电变压器的输出电压。
    • 8. 发明申请
    • IMAGE FORMING APPARATUS
    • 图像形成装置
    • US20090252515A1
    • 2009-10-08
    • US12416834
    • 2009-04-01
    • Tatsuya HotogiShimpei Matsuo
    • Tatsuya HotogiShimpei Matsuo
    • G03G15/06
    • G03G15/5004G03G15/0856G03G15/086G03G2215/0634
    • An image forming apparatus includes an alternating-current high-voltage power supply generating an alternating-current bias for detection of the remaining amount of toner. The alternating-current high-voltage power supply includes a piezoelectric transformer, a piezoelectric-transformer driving unit, a piezoelectric-transformer driving-signal generating unit, a voltage detecting unit, a voltage setting unit, and an controlling unit that feeds back a difference signal between a detection level signal supplied from a detection signal detecting unit and a setting signal supplied from the voltage setting unit to the piezoelectric-transformer driving-signal generating unit to control an output voltage from the piezoelectric-transformer.
    • 图像形成装置包括产生用于检测调色剂剩余量的交流偏压的交流高压电源。 交流高压电源包括压电变压器,压电变压器驱动单元,压电变压器驱动信号发生单元,电压检测单元,电压设定单元和反馈差分的控制单元 从检测信号检测单元提供的检测电平信号与从电压设定单元提供给压电变压器驱动信号产生单元的设置信号之间的信号,以控制来自压电变压器的输出电压。