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    Image forming apparatus, and method for controlling image forming apparatus
    2.
    发明授权
    Image forming apparatus, and method for controlling image forming apparatus 有权

    公开(公告)号：US09961223B2

    公开(公告)日：2018-05-01

    申请号：US14719165

    申请日：2015-05-21

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Atsushi Hikichi

    IPC: G06K15/00 ,  H04N1/00 ,  G03G15/00 ,  G06F1/32

    CPC classification number: H04N1/00896 ,  B41J29/38 ,  G03G15/5004 ,  G06F1/3284 ,  H04N1/00474 ,  H04N2201/0094 ,  Y02D10/159 ,  Y02D50/20

    Abstract: An image forming apparatus that shifts to a power saving state, includes a printing unit, a printing control unit configured to control the printing unit, and a power supply unit configured to supply power to the printing control unit when the image forming apparatus returns from the power saving state, wherein the printing control unit, to which power is supplied by the power supply unit, executes initialization of the printing unit in a case where a printing screen for performing a printing function is set as a initial screen to be displayed when the image forming apparatus returns from the power saving state, and wherein the printing control unit does not execute initialization of the printing unit in a case where a selection screen for selecting the printing function is set as a initial screen to be displayed when the image forming apparatus returns from the power saving state.

    Printer device power consumption profiling and power management systems using same
    6.
    发明授权
    Printer device power consumption profiling and power management systems using same 有权

    公开(公告)号：US09714963B2

    公开(公告)日：2017-07-25

    申请号：US14245187

    申请日：2014-04-04

    Applicant: Xerox Corporation

    Inventor： Jean-Marc Andreoli ,  Yves Hoppenot

    IPC: G01R21/00 ,  G01R21/06 ,  G01R21/133 ,  G06F3/12 ,  G06F1/32

    CPC classification number: G01R21/133 ,  G06F1/3284 ,  G06F3/1221 ,  G06F3/1229 ,  Y02D10/159 ,  Y02D10/1592

    Abstract: A power meter generates a time series of observations of power drawn by a device configured to operate in an active mode and to transition through a sequence of inactive modes comprising one or more intermediate inactive modes each having a bounded time duration terminating in a final inactive mode of unbounded time duration, and further configured to transition from any of the inactive modes to the active mode in response to a device activation signal. An electronic data processing device is programmed to determine statistical characteristics of the power draw of the device in each of the inactive modes by fitting a state model to the time series of observations. The state model represents each intermediate inactive mode including its bounded time duration and further includes a probabilistic representation of the transition from any of the inactive modes to the active mode in response to a device activation signal.

    Electronic device with a control circuit to detect and establish a connection to host device
    9.
    发明授权
    Electronic device with a control circuit to detect and establish a connection to host device 有权

    公开(公告)号：US09665150B2

    公开(公告)日：2017-05-30

    申请号：US14724493

    申请日：2015-05-28

    Applicant: SEIKO EPSON CORPORATION

    Inventor： Shinya Sakashita ,  Aya Takio

    IPC: G06F1/00 ,  G06F1/26 ,  G06F1/32

    CPC classification number: G06F1/266 ,  G06F1/3284 ,  G06F1/3287 ,  Y02D10/159 ,  Y02D10/171

    Abstract: When a control circuit of a printer detects a USB connection with a host device when a power switch is in an on state in an initial state, the control circuit performs an initialization process (enumeration) (a first initialization process) which requests bus power, and performs a USB communication process and charging of a secondary cell after the first initialization process is completed (successful). When the first initialization process fails, the control circuit performs an initialization process requesting self power (a second initialization process), and does not perform charging of the secondary cell. Here, the first initialization process includes a request for a greater supply of power than the second initialization process.

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