Title:
A motor controlling device and a printer
Document Type and Number:
Japanese Patent JP5987124
Kind Code:
B2
Abstract:
Speed fluctuations are decreased with a simple method even when a stepping motor (100) having comparatively large torque fluctuations is used. A drive pulse modulating unit (112) which modulates the frequency of a drive pulse to be inputted to the stepping motor (100) is provided. The drive pulse modulating unit (112) modulates the constant frequency of the drive pulse such that the frequency of the drive pulse within excitation-phase one cycle of the stepping motor (100) is: low for a period that is, by 1/8 cycle of the excitation-phase one cycle, before an excitation phase where the vibration of the stepping motor is the maximum; and high in an excitation phase that is by 1/2 cycle subsequent to the excitation phase where the drive pulse frequency is low.
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Inventors:
Ichiro Furuki
Yoshifumi Yamamoto
Tatsuya Nagakawa
Kosuke Oda
Yoshifumi Yamamoto
Tatsuya Nagakawa
Kosuke Oda
Application Number:
JP2015554632A
Publication Date:
September 07, 2016
Filing Date:
October 23, 2014
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
B41J11/42; H02P8/18
Domestic Patent References:
| JPH06315297A | 1994-11-08 | |||
| JP2011207097A | 2011-10-20 | |||
| JP2005219311A | 2005-08-18 | |||
| JPH03139197A | 1991-06-13 | |||
| JPH03256595A | 1991-11-15 | |||
| JP2002369589A | 2002-12-20 | |||
| JP2003339192A | 2003-11-28 |
Attorney, Agent or Firm:
Shoji Mizoi
Yasuko Hasegawa
Yasuko Hasegawa