Ricoh Company, Ltd.

Takehisa Kitakawa

Ryosuke Kasahara

Masaru Kumagai

Tomokazu Namiki

A display apparatus includes: an irradiation section to be irradiated with image light while being driven to cause a three-dimensional image be displayed based on reflected image light in a manner visible to a user using an afterimage effect; a driver that drives the irradiated section; circuitry that acquires two-dimensional image data generated according to at least one of an angle or a position of the irradiation section being driven; and an irradiation device that irradiates the irradiated section with the image light based on the two-dimensional image data that is acquired.

Display apparatus, display system, display control method, and non-transitory recording medium

A device management system for managing a plurality of image forming apparatuses each having a power save mode in which electric power is supplied from a battery includes: a process accepting unit configured to accept a process request issued to a first image forming apparatus of the image forming apparatuses; a mode determining unit configured to determine whether the first image forming apparatus is in the power save mode; a search unit configured to, when the first image forming apparatus is determined to be in the power save mode, search the image forming apparatuses for a second image forming apparatus that is not in the power save mode; and a request transfer unit configured to transfer a command to perform a process according to the process request to the second image forming apparatus.

Device management system, device management method, and image forming apparatus

A power supply control device includes an electrical power generating unit that generates electrical power and supplies the generated electrical power to an electronic device having a nonvolatile memory and a control unit; a switching unit that monitors a voltage of electrical power supplied to the electronic device, and switches such that, when the voltage is less than a predetermined threshold value, the electrical power is supplied to the control unit and is not supplied to the nonvolatile memory; and a capacitor that maintains, when the electrical power is switched to be supplied to the control unit, a voltage applied to the nonvolatile memory for a period of time during which writing of data to the nonvolatile memory can be completed.

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Tokyo, Japan

Takehisa Kitakawa