Power supply device configured to automatically restore power after recovery from a power failure, image forming apparatus, and control method

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10778860
APP PUB NO 20190289156A1
SERIAL NO

16299707

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Abstract

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A power supply device installed in an electronic apparatus includes a first power supply outputting power upon a plug being connected to a system power supply, a second power supply outputting power upon receiving of a power supply control signal, a third power supply outputting power from a battery, a controller operating using the power from the second power supply and configured to control the electronic apparatus, a flip-flop configured to operate using the power from the third power supply and configured to store, upon activating the electronic apparatus, first logic data or upon shutting down the electronic apparatus, second logic data, and a power supply control switch operating using the power from the first power supply, to output the power supply control signal to the second power supply, in response to activating the electronic apparatus or in response to storing the first logic data in the flip-flop.

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Patent Owner(s)

  • RICOH COMPANY, LTD.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Mori, Yuuya Shiga, JP 1 1
Shuta, Tomohiro Kanagawa, JP 5 9
Watanabe, Kenichi Kanagawa, JP 394 3331

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