Title:
PRINTER AND MOTOR CONTROLLER
Document Type and Number:
Japanese Patent JP3538840
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prevent abnormal heating and firing when a motor is brought to a lock state.
SOLUTION: When a state in which the duty of pulse signals outputted from a PWM circuit 3 is a maximum value continues for a constant time, a CPU 1 judges that the DC motor 7 is in the lock state, makes the duty of pulse signals from the PWM circuit 3 zero and carries out a process of interrupting a voltage impression from a motor driver 6 to the DC motor 7.
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Inventors:
Hayashi, Kengo
Application Number:
JP2001152634A
Publication Date:
June 14, 2004
Filing Date:
May 22, 2001
Export Citation:
Assignee:
FUNAI ELECTRIC CO LTD
International Classes:
B41J29/46; B41J19/18; B41J29/387; H02P7/29; (IPC1-7): B41J19/18; B41J29/46; H02P5/17