Information is stored indicating a power state to which a printing apparatus is to be shifted. When a power switch receives a power off instruction, the printing apparatus is shifted to a first power state or a second power state in accordance with the stored information. In a first power state, power is supplied to a part of devices provided in the printing apparatus, and in a second power state, power is not supplied to the part of devices in the printing apparatus.

An image forming apparatus includes a main CPU, and, in an unused period in which the image forming apparatus is not used, the main CPU detects whether or not a person exists within a human detection range, on the basis of an output of a human detection sensor. When a person has been detected, by outputting a notification voice regarding an intruder, which indicates that the intruder has been detected, from a speaker, the main CPU notifies the surroundings of the image forming apparatus and also transmits an electronic mail including a message indicating that the intruder has been detected to an address that has been registered in advance and thereby notifies a user of a terminal of the address of the detection of the intruder.

An MFP communicates with a DNS server through a network. This MFP includes an operation unit that sets whether a printing service is activated or not and a controller unit that registers search information in which capability information provided for a client terminal and information relating to name resolution are associated with each other in the DNS server in accordance with activation of the printing service being set by this operation unit.

An image forming apparatus includes a main processor, a first memory, a sub processor, and a second memory. The second memory stores a snapshot that includes an executable program obtained by loading one or more programs in the first memory. The main processor switches from a drive mode to a stop mode. The sub processor activates the main processor in response to any one of a plurality of activation factors being detected, cuts off power in response to an operation mode being switched to the stop mode, and supplies power to the main processor and the first memory before the main processor is activated. The main processor reads out a snapshot associated with an activation factor from the second memory and stores the snapshot into the first memory in response to being activated by the sub processor.

An image processing apparatus includes a switch section, a power supply section, an operation display section, an initialization control section, an image processing section, and a condition receiving section. The initialization control section causes the operation display section to start a first initialization processing when supply of a power supply voltage is started, and subsequently causes the image processing section to start a second initialization processing. The condition receiving section accepts an input of an execution condition. The operation display section includes a display part, a storage part, a display control part, and a condition setting part. The display control part causes the display part to display a screen after completion of the first initialization processing. The condition setting part stores an execution condition inputted via the screen in the storage part, and outputs the execution condition to the condition receiving section after completion of the second initialization processing.

An information processing device that can communicate with an external device includes a controller for controlling the information processing device, and a network interface for communicating data with the external device via a network. The network interface performs proxy response for responding to specific data received from the external device via the network to the external device without the controller. The network interface includes a storage unit for storing system status information indicating a power state of the information processing device and determines whether or not to perform the proxy response on the basis of the system status information stored in the storage unit.

An image forming apparatus which performs an adjustment operation at appropriate timing. Whether to execute a first or a second adjustment processes is controlled based on the number of sheets on which images are formed. A first adjustment operation is executed in a case where the number of sheets has reached a first number since a previous first adjustment process was executed. A second adjustment operation is executed in a case where the number of sheets has reached a second number since a previous second adjustment process was executed. The first adjustment operation is executed in a case where the number of sheets has reached the first number prior to a designated time by a predetermined period. The second adjustment operation is skipped in a case where the number of sheets has reached the second number prior to the designated time by the predetermined period.

An apparatus and method for saving power in an office machine having a display panel are provided. The method comprises setting the apparatus in an operation standby mode, detecting whether an error exists in the apparatus and turning on the display panel to display the error thereon when the error is detected. Furthermore, the apparatus keeps the display panel in an off state when the error is not detected. Thus, the exemplary embodiments of the present invention provide a power saving method of an office machine which prevents unnecessary power consumption during an operation of an office machine having a display panel.

An image forming apparatus includes: a post-processor including a sheet detection circuit detecting a sheet inserted in a sheet insertion opening for manual stapling, a staple mechanism executing stapling processing on the sheet, and a drive circuit actuating the staple mechanism; a post-processing controller operating the drive circuit in response to detection of the sheet; a power circuit supplying power to the drive circuit and another circuit in the apparatus; and a power saving controller shutting off a power supply from the power circuit to the drive circuit and the other circuit and shifting from a normal mode to a power saving mode when a shifting condition is satisfied. Prior to shifting, the power saving controller checks the post-processing controller whether the stapling processing is currently executed, and, when the stapling processing is not currently executed, instructs prohibition of the stapling processing and shifts to the power saving mode.

A communication apparatus of the present invention includes a first acquisition unit configured to acquire first information that causes the communication apparatus to decide whether a different communication apparatus has a function to disconnect a power source according to an instruction from the communication apparatus, a second acquisition unit configured to acquire second information that shows an operation mode of the different communication apparatus, and a notification unit configured to notify a user that, in a case where the wireless communication with the different communication apparatus is disconnected, the different communication apparatus is instructed to disconnect the wireless communication and disconnect the power source of the different communication apparatus according to the first information and the second information.