Ricoh Company, Ltd.

Kiriko Chosokabe

Hideaki Iijima

Kazunari Tonami

Eiji Nemoto

Yuji Ohue

Akiyoshi Nakai

Akira Murakata

Norikazu Okada

Hiroya Uruta

Takuma Kasai

Yoshiharu Tojo

Mikio Nakajima

Naoki Takishima

Daisuke Koya

Yushi Miyata

Hiroshi Adachi

Tetsuyoshi Nakata

Kohji Yamamoto

Seiji Miyawaki

Tomoyuki Yamashita

Homare Ehara

Masaya Katoh

Kasai Takuma

An information processing system includes circuitry that acquires input information input to a terminal apparatus, the terminal apparatus operating a message exchange program, determines, based on the input information being acquired, whether or not a condition as a trigger for calling an information processing service is satisfied, changes, based on the determination that the condition as the trigger for calling the information processing service is satisfied, a status of the message exchange program into a status that exchanges a message with the information processing service, acquires, based on the message to the information processing service, electronic information used for information processing, and requests an information apparatus to execute the information processing using the electronic information being acquired.

Information processing apparatus, information processing system, and information processing method

A power display system includes an electronic apparatus and a server connected to an electronic apparatus group including the electronic apparatus. Further, the power display system includes a calculation unit totaling consumption power by the electronic apparatus group and calculating a ratio of the totaled consumption power to a target value of the consumption power, and a display control unit displaying a display part, which indicates a use status of power, in a display area of the electronic apparatus in a display manner which corresponds to the ratio.

Power display system, image processing apparatus, and user interface

A system in accordance with the present disclosure comprises a sensor and an information processing apparatus that includes processing circuitry. The sensor is installed on a surface so that a detection direction of the sensor is at a non-zero angle from a line normal to the surface. The processing circuitry is configured to communicate with the sensor, calculate a position of a detection area, in which the sensor detects an object in a predetermined space, according to the non-zero angle and a location of the sensor on the surface, and create correspondence information that associates an area of the predetermined space with the detection area.

System, information process apparatus and information processing method

A power control system includes: an information processing device including: a determining unit that determines whether to supply power to a device from a power supplying unit, based on first correspondence information, in which an output signal detected by a detecting unit of each of at least one electronic device is associated with identification information of a corresponding electronic device, received from the corresponding electronic device, and a stored second correspondence information, in which identification information to identify a power supplying unit of a power source control device that supplies power to a device is associated with identification information of each of the at least one electronic device, and an instruction unit that instructs the power source control device to supply power or to shut off power supply to a device from the power supplying unit, according to a determination result of the determining unit.

Power control system, power control method, and information processing device

A device control system includes a detecting apparatus configured to detect an object in a predetermined space, and an information processing apparatus configured to control an illuminating apparatus based on a detection result of the object. The device control system includes an obtaining unit configured to obtain, from the detecting apparatus, information relating to an illuminance in the predetermined space; and a control unit configured to control, when the illuminance in the predetermined space falls below a first targeted illuminance, the illuminating apparatus so that the illuminance in the predetermined space becomes a second targeted illuminance that is greater than the first illuminance.

Device control system, information processing apparatus, and non-transitory recording medium

An information processing apparatus includes circuitry that acquires a measured temperature of a target area from a measuring device, detects whether the measured temperature changes during a predetermined time period, determines whether a human exists in the target area based on the measured temperature and the detection result indicating whether the measured temperature changes during the predetermined time period, measures a duration of time in which the determination result indicating that the human exists in the target area and the detection result indicating that there is no temperature change are kept generated, and determines that there is no human in the target area even when the determination result indicates that the human exists, if the measured duration of time reaches a certain time period, the certain time period being modifiable based on history information indicating a previously generated determination result indicating whether the human exits in the target area.

Information processing apparatus, human presence determining method, and recording medium storing determining program

An activation control apparatus includes a voltage fluctuation obtainer to obtain voltage fluctuation amplitude of an external power source at a given voltage, the voltage fluctuation caused when activating an apparatus using the external power source; a voltage fluctuation detector to detect the voltage fluctuation of the external power source at the given voltage; an activation controller to determine whether the voltage fluctuation amplitude obtained by the voltage fluctuation obtainer at the given voltage of the external power source, detected by the voltage fluctuation detector, is within a preset allowable voltage fluctuation range, and to control activation of the apparatus using the external power source based on a result of the voltage fluctuation determination made by the activation controller.

Activation control apparatus, image processing apparatus, activation control method, and activation control program storage medium

An image forming apparatus includes: an identification information acquiring unit that acquires identification information to identify a user; a usage history information acquiring unit that acquires usage history information for the user specified by the identification information; an output setting forecasting unit that forecasts output setting used by the user based on the usage history information; and a fixing temperature setting unit that sets a fixing temperature based on the forecasted output setting.

Image forming apparatus, method of setting fixing temperature, and computer program product

A heating unit is heated by supply of an alternate-current power. A heating control unit executes a phase control to supply the alternate-current power to the heating unit for an ON-width in at least a half-wave period of the alternate-current power. A storing unit stores therein parameters for calculating the ON width. The heating control unit calculates the ON width based on the parameters stored in the storing unit and executes the phase control using a calculated ON width.

Fixing device, image forming apparatus, and heating control method

A heater control device includes a temperature detector that detects a temperature of a heated object heated by a heater; an alternating-current power supply for applying an alternating current voltage to the heater; a turn-on ratio decision unit that determines a turn-on ratio of the heater based on the temperature and a target temperature; a turn-on pattern decision unit that determines a partial turn-on pattern, as the turn-on pattern of the heater, which is a pattern of a turn-on ratio higher than the determined turn-on ratio in terms of a control-period, and to which a partial turn-on instead of a full turn-on is allocated on a half-wavelength basis of the alternating current voltage within the control period based on the turn-on ratio of the heater; and a turn-on controller that controls turn-on of the heater based on the determined turn-on pattern.

Heater control device, image forming apparatus, and computer program product

A heater controller performs on/off control of a plurality of heaters and includes a storage unit that stores therein a plurality of pattern sets. Each of the pattern sets includes a plurality of heater-on/off patterns for respectively controlling the heaters. The heater controller calculates a reference value representing an average of values of electric power supplied to the heater controller over a predetermined period of time; calculates, for each of the pattern sets, an output power value to be supplied to the heaters when the heaters are turned-on according to the heater-on/off patterns included in the pattern set; calculates, for each of the pattern sets, a difference between the reference value and the output power value; selects, from the pattern sets, one pattern set having a smallest difference; and performs on/off control of the heaters according to the heater-on/off patterns included in the pattern set thus selected.

Heater controller, image forming apparatus, method for controlling heater

An image forming apparatus includes a halogen heater in a fixing unit; an AC source applying an alternating voltage to the halogen heater; a half-wave control unit that performs the heater half-wave control to control the halogen heater on the half-wavelength basis, according to a heater-on/off pattern set for each control cycle having a predetermined length; a heater-off-time measuring unit that measures heater-off period of time; a phase-control-execution determining unit that determines, based on the measured heater-off period of time, whether the heater phase control is to be performed on the alternating voltage, the phase control being performed by shifting phase of the alternating voltage; and a phase control unit that performs, when the phase control is determined to be performed, the phase control only for a period of time depending on the measured heater-off period of time after switch-on of the heater and before execution of the half-wave control.

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Tokyo, Japan

Kiriko Chosokabe