Recording apparatus
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United States of America Patent
Stats
-
Aug 2, 1994
Grant Date -
N/A
app pub date -
Jun 7, 1991
filing date -
Jun 11, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A recording apparatus which has reduced the speed variation and vibration of the motor uses a step motor as a driving source for a carrier for carrying a carriage mounted with a recorder or a recording medium. The apparatus includes a controller that, on accelerating the step motor, controls the step motor so that the step motor is driven with a shorter period than the mechanical time constant of the carrier when the rotary speed of the motor is less than a specified value, and so that the motor is driven with a longer period than the mechanical time constant when the rotary speed of the motor is more than the specified value.
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