Recording device with a controllable carriage driving motor

Details Recording device with a controllable carriage driving motor Recording device with a controllable carriage driving motor

1991-06-20

1993-11-23

Shoop, Jr., William M.

Electricity: motive power systems

Positional servo systems

With particular motor control system responsive to the...

318696, G05B 1940

Patent

active

052647692

ABSTRACT:
A recording device performs recording by reciprocating a carriage mounting a recording head by a stepping motor. The recording head includes a rotation position detector for detecting a rotation position of a rotor of the stepping motor, a controller for performing closed-loop driving of a switching timing of an exciting current of the stepping motor according to a detection signal from the rotation position detector, and a motor speed control circuit for controlling a rotation speed of the stepping motor according to the detection signal from the rotation position detector. The device performs stationary confirmation whether the switching timing of the stepping motor is normally performed via the controller.

REFERENCES:
patent: 4928050 (1990-05-01), Torisawa et al.
patent: 4963808 (1990-05-01), Torisawa et al.
patent: 5029264 (1991-07-01), Ito et al.

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