Invention Grant
US07948200B2 Motor drive device, image reading device, image forming apparatus, and motor drive method
有权
电机驱动装置，图像读取装置，图像形成装置以及电动机驱动方法
- Patent Title: Motor drive device, image reading device, image forming apparatus, and motor drive method
- Patent Title (中): 电机驱动装置，图像读取装置，图像形成装置以及电动机驱动方法
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Application No.: US12036827Application Date: 2008-02-25
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Publication No.: US07948200B2Publication Date: 2011-05-24
- Inventor: Yasuyuki Fukunaga , Masatake Ohmori , Mitsuo Shinya , Hirokazu Goto , Toshiaki Nomura
- Applicant: Yasuyuki Fukunaga , Masatake Ohmori , Mitsuo Shinya , Hirokazu Goto , Toshiaki Nomura
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Limited
- Current Assignee: Ricoh Company, Limited
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2007-064814 20070314; JP2007-330029 20071221
- Main IPC: G05B19/40
- IPC: G05B19/40
Abstract:
A motor drive device drives a stepping motor having a rotor mounted on a rotating shaft with a capability of making a transition between a plurality of excitation modes. A motor control unit drives the stepping motor by controlling the rotor to move to a position corresponding to an excitation modes. A stop control unit controls, when stopping the stepping motor, a stop of the rotor at a position to which the rotor is moved by the motor control unit common to the excitation modes after the stop of the rotor is issued.
Public/Granted literature
- US20080278107A1 MOTOR DRIVE DEVICE, IMAGE READING DEVICE, IMAGE FORMING APPARATUS, AND MOTOR DRIVE METHOD Public/Granted day:2008-11-13
Information query
IPC分类:
