Motor controller and printer

Electricity: motive power systems – Plural – diverse or diversely controlled electric motors

Reexamination Certificate

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Details

C318S599000, C318S400220, C318S400130, C318S434000, C318S066000, C323S274000, C323S284000, C363S074000, C363S071000, C361S023000, C361S024000, C361S025000, C361S027000, C361S028000

Reexamination Certificate

active

08084967

ABSTRACT:
A motor controller is provided. The motor controller includes a motor drive unit that drives a plurality of motors; a thermal shutdown unit that is provided in the motor drive unit and that stops the plurality of motors in the case of an overload; a lock signal generation unit that generates a lock signal corresponding to a respective one of the plurality of motors when a rotational speed of the respective motor reaches a threshold speed set for the respective motor; and an operation determination unit which, when the lock signal generation unit interrupts lock signals for all of the plurality of motors, determines that thermal shutdown unit has operated.

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patent: 5847948 (1998-12-01), Gatto et al.
patent: 6809489 (2004-10-01), Yoshida et al.
patent: 7290847 (2007-11-01), Shirotori et al.
patent: 7417400 (2008-08-01), Takeishi et al.
patent: 7429836 (2008-09-01), Hongo
patent: 7615958 (2009-11-01), Takeishi et al.
patent: 2004/0252337 (2004-12-01), Takabayashi et al.
patent: 2002-347296 (2002-12-01), None
patent: 2004-310212 (2004-11-01), None
patent: 2006-271055 (2006-10-01), None
patent: 2006-296165 (2006-10-01), None
patent: 2007-037292 (2007-02-01), None

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