IMAGE FORMING APPARATUS AND POWER CONTROL METHOD THEREOF
    2.
    发明申请
    IMAGE FORMING APPARATUS AND POWER CONTROL METHOD THEREOF 有权
    图像形成装置及其功率控制方法

    公开(公告)号:US20130138986A1

    公开(公告)日:2013-05-30

    申请号:US13728278

    申请日:2012-12-27

    Abstract: An image forming apparatus includes a volatile memory and System-on-Chip (SoC) part. The SoC part includes an internal memory, a CPU for accessing the volatile memory in the normal mode; an interface part for receiving a external signal, and a control part for, when the interface part has no input during a first preset time, copying information stored to the volatile memory to the internal memory and converting to a first power saving mode to lower an operating frequency of the volatile memory and an operating frequency of the CPU, and when a normal mode switch signal is not input during a second preset time in the first power saving mode, controlling the CPU to access the information copied to the internal memory and converting to a second power saving mode to change the volatile memory to a self-refresh mode.

    Abstract translation: 图像形成装置包括易失性存储器和片上系统(SoC)部件。 SoC部分包括内部存储器,用于在正常模式下访问易失性存储器的CPU; 用于接收外部信号的接口部分,以及控制部分,当接口部分在第一预设时间期间没有输入时,将存储到易失性存储器的信息复制到内部存储器并转换到第一省电模式以降低 易失性存储器的工作频率和CPU的工作频率,并且当在第一省电模式中的第二预设时间期间没有输入正常模式切换信号时,控制CPU访问复制到内部存储器的信息并转换 到第二省电模式以将易失性存储器改变为自刷新模式。

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