Upon receiving a resumption notification from a system controller, a printer driver determines whether a power supply to a printer apparatus has stopped/resumed after a previous transition instruction to a sleep state was transmitted to the printer apparatus. If stop/resumption is not performed, an initialization negotiation processing performed to the printer apparatus when stop/resumption is not performed.

A device monitoring apparatus includes a sensor and a stopping unit. The sensor is configured to detect at least either smoke generation or ignition in a module included in an electronic device, based on at least one of a relative intensity of light generated in the module and a temperature of each module. The stopping unit is installed in the module and configured to stop an operation of the module in response to the at least one of the smoke generation and the ignition being detected by the sensor.

An image forming apparatus includes an image forming unit configured to form an image on a recording material, a controller configured to control the image forming unit, a sheet feeding tray configured to store a recording material to be supplied to the image forming unit, and a sheet feeding tray cover configured to cover an access point of the sheet feeding tray. The sheet feeding tray cover includes a user interface for inputting information into a controller unit or outputting information from the controller.

An image forming apparatus to which an external apparatus is connected includes an image forming unit configured to form an image, and a power supply device configured to supply power to the image forming apparatus and the external apparatus. In a case where a value of an alternating current voltage input to the power supply device is a first value, the power supply device supplies first power to the external apparatus. In a case where the value of the alternating current voltage is a second value smaller than the first value, the power supply device supplies second power smaller than the first power to the external apparatus.

An information processing apparatus includes two storage devices, a semiconductor storage device and a magnetic storage device, and controls which of the storage devices is to provide a swap area corresponding to a power saving mode set in accordance with a user input.

An image forming apparatus including a normal power mode and a power saving mode includes a fixing unit configured to bring first and second rotary members into contact with each other to form a nip portion and fix a toner image onto a sheet with a pressing force of the nip portion. The image forming apparatus executes a rotation operation or a separation operation to separate the first and second rotary members from each other in order to prevent a deformation of the nip portion in the fixing unit. The image forming apparatus measures a time during which the first and second rotary members are in contact with each other without rotating. The image forming apparatus determines whether to execute the separation operation or the rotation operation based on a result of the power mode determination and the measured time.

If an operation of canceling a predetermined state includes an operation of powering off the device, even if communication between the device and the information processing apparatus becomes inexecutable after the screen for cancelling the predetermined state is displayed, the information processing apparatus does not execute a notification corresponding to a state in which the communication is inexecutable. If the operation of canceling the predetermined state does not include the operation of powering off the device, the information processing apparatus executes, based on a fact that the communication between the device and the information processing apparatus becomes inexecutable after the screen for cancelling the predetermined state is displayed, the notification corresponding to the state in which the communication is inexecutable.

An information processing apparatus includes a processor and a first device. The processor executes an operating system and a power control application, which operates on the operating system and controls a power mode of the information processing apparatus. The first device is connected to the processor to communicate with the processor, and notifies the operating system of a return time. The power control application notifies the first device of information indicating the power mode of the information processing apparatus. Based on the information notified by the power control application, the first device determines a return time of which the operating system is to be notified, and notifies the operating system of the determined return time. Based on the return time notified by the first device, the operating system determines a power saving state to which the processor is to shift, and shifts the processor to the determined power saving state.

A wake-up control device includes a detector and a wake-up unit. When an apparatus is in a power-saving state in which power consumption is lower than power consumption in a normal state, the detector detects a hand or finger approaching an operation unit operated in order to perform a wake-up operation of changing a state of the apparatus from the power-saving state to the normal state. In the case where the apparatus is in the power-saving state, if the detector detects a hand or finger approaching the operation unit, even when the operation unit has not been operated, the wake-up unit performs a wake-up operation of changing the state of the apparatus from the power-saving state to the normal state.

An information processing apparatus includes a storage unit configured to store information related to an activation of the information processing apparatus, a control unit configured to perform a control such that, in a case where the information stored in the storage unit relates to a first activation, the information processing apparatus is shifted into a standby state when power is supplied to the information processing apparatus, and in a case where the stored information relates to a second activation, the information processing apparatus is shifted into the standby state when the power is supplied to the information processing apparatus and also a signal input to the control unit is put into a particular state, and a power supply control unit configured to put the signal input to the control unit into the particular state when the information processing apparatus is not shifted into the standby state even when the power is supplied.