An image forming apparatus includes a document tray in which a document is to be set, a medium container that contains a recording medium, a document detection sensor that detects a document set in the document tray, a medium detection sensor that detects a recording medium contained in the medium container. A hardware processor executes a copy operation of forming an image obtained by scanning a document set in the document tray on a recording medium, determines to automatically execute the copy operation in case an elapsed period of time between a document detection time when a document is detected by the document detection sensor and a medium detection time when a recording medium is detected by the medium detection sensor is equal to or smaller than a predetermined operation period of time, and automatically executes the copy operation based on determination of automatic execution of the copy operation.

An information processing apparatus includes a processor configured to change a power saving setting of an apparatus to a third setting in which a power saving effect is higher than in a second setting based on a usage status of the apparatus in a case where the power saving setting of the apparatus is changed from a first setting to the second setting; in which the first setting is a default setting of the apparatus, and the second setting is different from the third setting.

An image forming apparatus includes a plurality of devices configured to perform different job processing, a control unit configured to control job processing performed by each device, a reception unit configured to receive an instruction for causing the control unit to shift to a state where the job processing is capable of being performed, and a power control unit configured to, when the control unit is shifted to a stand-by state in response to receiving the instruction, supply a power to a device specified based on a job processing function corresponding to an initial screen to be displayed.

An information processing apparatus that switches a normal mode and an energy-saving mode includes control circuitry, an operation unit, and a device. The control circuitry controls processing of the information processing apparatus. The operation unit includes a display. The device mounted on the control circuitry or the operation unit writes change information indicating change of an operation mode in response to switching between the normal mode and the energy-saving mode. The device has a limit to a number of times of writing. The control circuitry counts the number of times of writing of the change information into the device, predicts a life of the device on a basis of a count value of the number of times of writing, and diagnoses appropriateness of the count value used for prediction of the life of the device when an increase rate of the count value exceeds a predetermined increase rate.

An image-forming apparatus comprising a controller and a communicator, wherein the controller is configured to perform to detect distance information of the image-forming apparatus with respect to a portable terminal device possessed by a user based on communication with the portable terminal device using the communicator, detect, based on the detected distance information, approach or leaving of specific portable terminal devices possessed by at least one or more predetermined users to or from the image-forming apparatus, and change a behavior of the image-forming apparatus when the controller detects the approach or the leaving of the specific portable terminal device to or from the image-forming apparatus.

An image processing apparatus includes a detector and a change unit. The detector detects a standing-up motion of a person after receipt of a print instruction. The change unit changes from a low-power consumption mode to a printing mode in response to detection of the standing-up motion, the printing mode being a ready-to-print mode.

An office machine with intelligent sleep and wake function and a control method thereof are introduced. The office machine comprises a storage module, image module, processing module, and power supply module. The processing module is connected to the storage module, image module, and power supply module. The storage module stores user data and first feature data. The processing module obtains a user image from the image module to generate second feature data and then process the first and second feature data to generate comparison result information. After determining user confirmation information according to the comparison result information, the processing module sends a first control signal to the power module, such that the office machine wakes up automatically from sleep. The office machine wakes up automatically when a user approaches the office machine, so as to save time and improve work efficiency and ease of use.

Provided is an image forming apparatus that shortens the waiting time of a user when returning from a power saving state to an operating state while suppressing power consumption. A return control unit switches a specific device from the power saving state to the operating state when a person is detected by a motion sensor in a situation where the specific device is in the power saving state. A performance recording unit records data of an actual start-up time, which represents a time required to start a specific program when the specific device switches from the power saving state to the operating state, in a non-volatile storage device. A sensitivity setting unit sets the sensitivity of the motion sensor according to the actual start-up time when the specific device is in the power saving state.

An image forming apparatus includes a CPU and a gesture detection part. The gesture detection part outputs data for a gesture corresponding to a hand action of a user present in front or in the vicinity of an apparatus body, to the CPU. The CPU detects presence or absence of the gesture and the type of the gesture in accordance with output from the gesture detection part. The CPU, upon detecting the gesture, checks details of the gesture against details of the preregistered, registered gesture, and if the detected gesture is the registered gesture, the CPU executes processing allocated to the detected, registered gesture.

A communication apparatus includes a communication unit, having operation modes including a first operation mode in which data communication is enabled and a second operation mode in which power consumption is lower than that in the first operation mode, configured to perform data communication with an opposed device, and a control unit configured to control switching between the operation modes of the communication unit, wherein the control unit controls a speed of communication, at a transition of the communication unit from the first operation mode to the second operation mode, between the communication unit and the opposed device to a predetermined communication speed or lower, then causes the communication unit to transition from the first operation mode to the second operation mode, and then stops clock supply to the communication unit.