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    • 2. 发明授权
    • Image forming apparatus capable of detecting contact fusion, and relay control apparatus
    • 能够检测接触融合的图像形成装置和中继控制装置
    • US08983314B2
    • 2015-03-17
    • US13098730
    • 2011-05-02
    • Eijiro Atarashi
    • Eijiro Atarashi
    • G03G15/00G03G15/20G03G21/16
    • G03G15/205G03G15/2039G03G15/55G03G15/80G03G21/1685G03G2215/2032G03G2221/1639
    • An image forming apparatus which can individually detect contact fusion of relays in a circuit configuration in which the relays are connected to respective both ends of a fixing heater. A first relay and a second relay are each connected between a power source and the fixing heater. The presence or absence of an input voltage to the fixing heater is detected on paths from the first relay to the fixing heater and from the second relay to the fixing heater. When the input voltage is detected in a state in which the first relay is on and the second relay is off, it is determined that the second relay has failed. When the input voltage is detected in a state in which the first relay is off and the second relay is on, it is determined that the first relay has failed.
    • 一种图像形成装置,其可以单独地检测在电路配置中的继电器的接触融合,其中继电器连接到定影加热器的相应两端。 第一继电器和第二继电器各自连接在电源和定影加热器之间。 在从第一继电器到定影加热器以及从第二继电器到定影加热器的路径上检测到对定影加热器的输入电压的存在或不存在。 当在第一继电器接通状态和第二继电器断开的状态下检测到输入电压时,确定第二继电器发生故障。 当在第一继电器断开并且第二继电器接通的状态下检测到输入电压时,确定第一继电器发生故障。
    • 6. 发明申请
    • IMAGE FORMING APPARATUS CAPABLE OF DETECTING CONTACT FUSION, AND RELAY CONTROL APPARATUS
    • 检测接触熔断的图像形成装置和继电器控制装置
    • US20110274450A1
    • 2011-11-10
    • US13098730
    • 2011-05-02
    • Eijiro ATARASHI
    • Eijiro ATARASHI
    • G03G15/00
    • G03G15/205G03G15/2039G03G15/55G03G15/80G03G21/1685G03G2215/2032G03G2221/1639
    • An image forming apparatus which can individually detect contact fusion of relays in a circuit configuration in which the relays are connected to respective both ends of a fixing heater. A first relay and a second relay are each connected between a power source and the fixing heater. The presence or absence of an input voltage to the fixing heater is detected on paths from the first relay to the fixing heater and from the second relay to the fixing heater. When the input voltage is detected in a state in which the first relay is on and the second relay is off, it is determined that the second relay has failed. When the input voltage is detected in a state in which the first relay is off and the second relay is on, it is determined that the first relay has failed.
    • 一种图像形成装置,其可以单独地检测在电路配置中的继电器的接触融合,其中继电器连接到定影加热器的相应两端。 第一继电器和第二继电器各自连接在电源和定影加热器之间。 在从第一继电器到定影加热器以及从第二继电器到定影加热器的路径上检测到对定影加热器的输入电压的存在或不存在。 当在第一继电器接通状态和第二继电器断开的状态下检测到输入电压时,确定第二继电器发生故障。 当在第一继电器断开并且第二继电器接通的状态下检测到输入电压时,确定第一继电器发生故障。