A power supply device installed in an electronic apparatus includes a first power supply outputting power upon a plug being connected to a system power supply, a second power supply outputting power upon receiving of a power supply control signal, a third power supply outputting power from a battery, a controller operating using the power from the second power supply and configured to control the electronic apparatus, a flip-flop configured to operate using the power from the third power supply and configured to store, upon activating the electronic apparatus, first logic data or upon shutting down the electronic apparatus, second logic data, and a power supply control switch operating using the power from the first power supply, to output the power supply control signal to the second power supply, in response to activating the electronic apparatus or in response to storing the first logic data in the flip-flop.

A communication apparatus includes a first communication portion configured to perform wireless communications with an external apparatus based on a Bluetooth Low Energy communication scheme, and at least one processor configured to cause the communication apparatus to act as a first determiner that determines whether an auto power-on function of powering on the communication apparatus under a predetermined condition even when the communication apparatus is in a powered-off state is set to be enabled. In a case where the first determiner determines that the auto power-on function is set to be enabled, the first communication portion disconnects, in response to a power-off instruction, connection to the external apparatus, which has been established based on the Bluetooth Low Energy communication scheme, and transmits advertising information that allows a response based on the Bluetooth Low Energy communication scheme to be received.

A second unit configured to be opened or closed with respect to a first unit includes a background plate configured to be switched between a facing state in which the background plate faces a image sensor and a non-facing state in which the facing state of the background plate and the image sensor is released and a power receiving section configured to receive power from a motor to switch the state of the background plate. The first unit includes an intermediate cam configured to be rotated by the power from a motor and a cam member configured to receive the power of the motor via the intermediate cam, the cam member having a receiving section of a size the power receiving section is received regardless of a position of the power receiving section when the intermediate cam is in the neutral position.

The information processing apparatus according to an embodiment of the present invention includes a power factor correction (PFC) circuit, an interface capable of connecting an optional device, and a power controller capable of turning off the PFC circuit. The power controller does not turn off the PFC circuit while a predetermined optional device is connected to the interface.

An image forming apparatus includes a control portion, a stop processing portion, a resumption processing portion, and a notification processing portion. The control portion, to which power supply is stopped when an operation mode of the image forming apparatus is a power-saving mode, measures an elapsed time until when printed matter processed according to the print job is collected. The stop processing portion, when the operation mode shifts to the power-saving mode, stops measurement of the elapsed time before power supply to the control portion is stopped. The resumption processing portion, if the printed matter exists in the sheet discharge portion when the operation mode shifts to a normal mode, resumes measurement of the elapsed time by the control portion. The notification processing portion, when the time measured by the control portion reaches a predetermined first reference time, notifies that the printed matter has not been collected.

An information processing apparatus includes an acquisition unit, a power supply unit, and a controller. The acquisition unit acquires failure information for the information processing apparatus via a wireless communication line from a management apparatus holding failure information. The power supply unit supplies power to the acquisition unit when the main power supply is not on. The controller exerts control in such a manner that, when the acquisition unit acquires the failure information from the management apparatus in the state in which the main power supply is not on, only a subset of functions of the apparatus are activated by supplying power from the power supply unit, and a process for limiting use of a function related to the failure is performed.

An information processing apparatus includes a transmission unit configured to transmit display image data and a display unit configured to display an image based on the display image data. The information processing apparatus further includes a switching unit configured to switch between inputting and not inputting the display image data transmitted by the transmission unit to the display unit, a control unit configured to control the switching unit to switch between inputting and not inputting the display image data to the display unit, and a power control unit configured to supply power to the display unit after the transmission unit starts transmitting the display image data. After the power control unit starts supplying power, the control unit controls the switching unit so that the display image data is input to the display unit.

An image forming apparatus includes: a controller that controls the image forming apparatus; a memory that stores noise levels produced by a plurality of devices constituting the image forming apparatus during operation of the devices; and a microphone that accepts a speech instruction for the image forming apparatus. The controller accepts a job, detects a speech level from the speech accepted by the microphone, compares the detected speech level with a noise level that corresponds to the job to be executed in the image forming apparatus and that has been read from the memory, and controls, based on a result of the comparison, which one of a process of accepting the speech instruction and a process of executing the job in the image forming apparatus should be preferentially performed.

A reading device includes an imaging sensor that reads a document; a document-transporting unit that transports the document to a position facing the imaging sensor; a control unit that controls the imaging sensor and the document-transporting unit; a housing that covers the imaging sensor, the document-transporting unit, and the control unit; and a power switch electrically connected to the control unit; where a recessed portion is formed in the housing and the power switch is disposed in the recessed portion.

A power control device and an image forming apparatus capable of reducing a current at the time of power shutdown in an apparatus such as the image forming apparatus are provided. The image forming apparatus comprises a power source, an electrical driving load which is driven by the power source, a shutdown circuit for shutting down the power source from the electrical driving load, and a power shutdown circuit for controlling drive and stop operations of the electrical driving load and shutdown operation by the shutdown circuit. In a case where a signal giving an instruction to shut down the electrical driving load from the power source is input, the control circuit outputs a signal for stopping the electrical driving load and outputs a signal giving an instruction to shut down the electrical driving load from the power source to the shutdown circuit by delaying the signal.