Recording apparatus

Details Recording apparatus Recording apparatus

1990-07-12

1992-03-17

Roskoski, Bernard

Electricity: motive power systems

Positional servo systems

With particular motor control system responsive to the...

318696, 400903, 400279, G05B 1940

Patent

active

050971891

ABSTRACT:
A recording apparatus in which a stepping motor is used as a driving source to reciprocate a carriage on which a recording head is mounted and recording is executed by the recording head in accordance with the timing when the stepping motor rotates. The apparatus includes a rotational position detector to detect a rotational position of the stepping motor; a current switching circuit to switch energization currents to the stepping motor on the basis of a detection signal from the rotational position detector; a motor speed control circuit to closed loop control a rotational speed of the stepping motor through the current switching circuit; and a controller for detecting a load corresponding to the stepping motor by a speed control output from the motor speed control circuit and for controlling the motor so as to change output torque of the stepping motor in accordance with the load.

REFERENCES:
patent: 4459675 (1984-07-01), Bateson et al.
patent: 4794292 (1988-12-01), Torisawa
patent: 4869610 (1989-09-01), Nishizawa
patent: 4904917 (1990-02-01), Hakluytt
patent: 4928050 (1990-05-01), Torisawa et al.
patent: 4963808 (1990-10-01), Torisawa et al.
patent: 4972109 (1990-11-01), Kakizaki et al.
patent: 5029264 (1991-07-01), Ito et al.

Affiliated with

Also associated with

Rating

Recording apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Recording apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Recording apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1478534