Title:
画像形成装置
Document Type and Number:
Japanese Patent JP5489575
Kind Code:
B2
Abstract:
A motor control apparatus includes a stepping motor which includes a rotor and a stator, and a control unit, wherein, in a case where the stator is excited in a second excitation pattern before rotation drive of the stepping motor is started in a first excitation pattern, the control unit performs phase adjustment of the rotor by exciting the stator in the first excitation pattern by one cycle or a plurality of cycles of the first excitation pattern with a drive pulse of a frequency within a self-start range of the stepping motor, and starts the rotation drive of the stepping motor by exciting the stator in the first excitation pattern to a target frequency which exceeds a self-start frequency of the stepping motor by changing the drive pulses.
Inventors:
Takeshi Sekiya
Application Number:
JP2009178016A
Publication Date:
May 14, 2014
Filing Date:
July 30, 2009
Export Citation:
Assignee:
Canon Inc
International Classes:
H02P8/22; B41J11/42; H02P8/38
Domestic Patent References:
| JP2008160900A | ||||
| JP1259793A | ||||
| JP2002366001A | ||||
| JP9132340A | ||||
| JP2008027557A |
Attorney, Agent or Firm:
Takuma Abe
Sogo Kuroiwa
Sogo Kuroiwa