Motor controller, image processing apparatus including the motor controller, and motor control method

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United States of America Patent

PATENT NO 9367046
APP PUB NO 20150234362A1
SERIAL NO

14706423

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A motor controller, operatively connected to a motor having an output shaft, includes a rotary detector to detect a rotation direction and a rotation amount of the output shaft of the motor to generate an actual rotary signal, a drive controller to generate a control signal based on the actual rotary signal and a target rotary signal indicating a target rotary direction and a target rotary amount, and a driver to supply a driving power to the motor based on the control signal. When the motor is in a hold state, the control signal is reversed periodically for a predetermined reverse time period T2 per a predetermined one reverse cycle T1. When the control signal is not reversed for a certain lock detection time period Tr that is longer than the revere cycle T1 of the control signal, supply of the driving power to the motor is blocked.

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Patent Owner(s)

Patent OwnerAddress
RICOH COMPANY LTDJAPAN TOKYO FIELD AREA MAGOME A CHOME 3 NO 6

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ishizuka, Natsuko Kanagawa, JP 18 91
Murata, Takuya Tokyo, JP 67 441

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