Canon Kabushiki Kaisha

Kohei Asano

Koji Shimizu

Yuji Naya

Keishi Inaba

Kiyokazu Umimura

Yuichi Konosu

So Yokomizo

Takeru Imamura

Takehiro Ito

A circuit board to be secured to a support member includes a first structure, a second structure, and a third structure. The first structure prevents the circuit board from moving in a horizontal direction with respect to the support member. The second structure prevents the circuit board from rotating around the first structure with respect to the support member. The third structure prevents the circuit board from moving in a vertical direction with respect to the support member. A distance between the first structure and the second structure is shorter than a distance between the first structure and the third structure.

Circuit board

An information processing apparatus includes a memory, a control unit to accept an access to the memory, a power supply circuit to supply a voltage to the memory and the control unit, a detection circuit to detect a drop in the voltage, a discharge circuit, and a delay circuit. The discharge circuit discharges a charge on a voltage supply line extending between the power supply circuit and the memory. The delay circuit delays receipt of a control signal by the discharge circuit for a predetermined period after the discharge circuit receives a charge discharge instruction from the control unit. The control signal is to control discharging the supply line charge. The discharge circuit discharges supply line charges per a control signal based on detection of a drop in the voltage by the detection circuit and based on the delay of the control signal delayed by the delay circuit.

Information processing apparatus and method of controlling information processing apparatus

If a storage device B that is a target of rebuild processing is an SSD, in the rebuild processing, a RAID controller copies system data of the image forming apparatus to the storage device B after copying to the storage device B data other than the system data out of data stored in a storage device A. Accordingly, it is possible to copy the system data from the storage device A to the storage device B after the temperature of the flash memory in the storage device B (SSD) has increased.

Information processing apparatus, method of controlling the same and storage medium

An image forming apparatus includes a non-volatile storage unit, a power circuit, a power switch for the power circuit, a determination unit, and a power control unit. The determination unit is configured to determine an address through a predetermined method before power is turned off or voltage decreases after activation. The power control unit is configured to execute power-off processing in a case where an operation instruction of the power switch is provided after power-on processing and execute writing of information to be saved with respect to an address of the non-volatile storage unit previously determined by the determination unit in a case where a decrease in voltage of the power circuit is detected after the power-on processing.

Image forming apparatus and control method of image forming apparatus

In an electronic device, a first sensor detects a detection target on a first region. A second sensor detects a detection target on a second region. A third sensor detects a detection target on a third region. A power control unit turns on the second sensor in a case where the first sensor detects the detection target on the first region. The power control unit turns on the third sensor and turns off the first sensor in a case where the second sensor detects the detection target on the second region.

Electronic device, power control method and storage medium storing program thereof

An image forming apparatus equipped with a sleep function and for forming an image using an image forming unit and a control method thereof. The image forming apparatus includes a control unit that controls the image forming unit. When a job is received in a sleep state, a port number of the received job is discriminated, whether or not to perform initialization processing of the image forming unit is determined based on the discriminated port number, and in a case that it is determined that initialization processing of the image forming unit is necessary, initialization processing of the image forming unit is started and thereafter the control unit is controlled to start processing of the job.

Image forming apparatus with controlled activation based on port number and control method thereof

An electronic apparatus that is capable of preventing overcharge and overdischarge of a battery. The electronic apparatus is operatable in a normal mode and a first power saving mode with less power consumption. A battery supplies electric power until battery residual capacity reaches a first threshold in the first power saving mode. A charging unit charges the battery in the normal mode. A control unit controls, in a case that the battery residual capacity is smaller than a second threshold larger than the first threshold when transition to the first power saving mode is made, so as to charge the battery until the battery residual capacity reaches the second threshold, and make a transition to the first power saving mode.

Method and system for ensuring a residual battery capacity reaching a predetermined value before transitioning apparatus to power-saving mode

An image forming apparatus is provided in which, in receiving a job and processing an image, a central processing unit (CPU) that can be cooled by a cooling unit to which electric power is supplied from a power supply unit controls a printing unit. The CPU, after a power state of the image forming apparatus is shifted to a second power state lower in power consumption than a first power state, recognizes that a receiving unit has received a job for returning from the second power state to the first power state. Then, the CPU performs adjustment such that start timing for supplying electric power from the power supply unit to the cooling unit is delayed.

Image forming apparatus, method of controlling image forming apparatus, and program

An image forming apparatus capable of communicating with a server apparatus, includes a receiving unit configured to receive a packet from the server apparatus, a determining unit configured to determine whether a packet received by the receiving unit is a specific packet, a power supply control unit which, when the determining unit determines that a packet received by the receiving unit is the specific packet, brings the image forming apparatus into a first power condition which enables the image forming apparatus to start quickly using data stored in a volatile memory, and a start control unit configured to start the image forming apparatus quickly using data stored in the volatile memory.

Image forming apparatus, control method of image forming apparatus and storage medium

The invention relates to an information processing apparatus which performs mirroring for synchronizing storage contents of a first storage unit and a second storage unit. If mirroring is valid when the information processing apparatus is started, the information processing apparatus detects a storage unit attached to itself. If a detection result indicates that no storage unit has been detected or one storage unit has been detected, the information processing apparatus displays, on a display unit, a connection acknowledgement screen for the storage unit which has not been detected. If the detection result indicates that two storage units have been detected, activation processing is executed for the information processing apparatus.

Information processing apparatus, control method therefor and storage medium

An image forming apparatus includes a communication unit configured to communicate with a server apparatus, a power supply control unit configured to repeat power supply to the communication unit, and an inquiry unit configured to make an inquiry to the server apparatus about whether to turn on a second power supply unit that energizes a controller that controls the image forming apparatus, each time the communication unit becomes communicable with the server apparatus by the power supply control unit, wherein the power supply control unit repeats power supply to the communication unit for each of a plurality of predetermined time periods, until receiving a response to turn on the power of the second power supply unit from the server apparatus in response to the inquiry by the inquiry unit.

Image forming apparatus, control method for image forming apparatus, and storage medium for performing power-saving control

In an information processing apparatus which incorporates a plurality of arithmetic units and a plurality of storage units, power consumption in a power saving mode is reduced, and a return time required to return from the power saving mode to a normal power mode is shortened. With this invention, in an information processing method in an information processing apparatus which incorporates a plurality of CPUs and a plurality of RAMs, when a condition required to transit to the power saving mode is satisfied, each CPU stores information associated with an operation state of an active program in one RAM, and turns off the power supply to devices except for the one RAM.

Apparatus and method for shortening the time returning from a power-saving mode to normal power mode and reducing power consumption in the power-saving mode

An image forming apparatus according to the present invention is capable of connecting a removable storage device that stores operation data controlling an operation of the image forming apparatus. When a shutdown instruction of the image forming apparatus is received from a user, it is determined whether or not it is necessary to execute an operation using the operation data stored in the removable storage device. In a case that it is determined that it is necessary to execute an operation using the operation data, the image forming apparatus stores the operation data stored in the removable storage device into an incorporated non-volatile storage unit and shots down, and then restart. After the restart is performed, it is controlled so that an operation using the operation data that has been stored in the incorporated non-volatile storage unit is executed.

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Yokohama, Japan

Kohei Asano