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LTPH245 Datenblatt(PDF) 21 Page - Seiko Instruments Inc

Teilenummer LTPH245
Bauteilbeschribung  LINE THERMAL PRINTER MECHANISM TECHNICAL REFERENCE
PDF  64 Pages
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Hersteller  SII [Seiko Instruments Inc]
Direct Link  http://www.sii.co.jp
Logo SII - Seiko Instruments Inc

LTPH245 Datenblatt(HTML) 21 Page - Seiko Instruments Inc

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3-8
3.4.2
Motor Timing
Refer to the timing chart in Figure 3-5 when designing the control circuit and/or software for starting and
stopping the motor. Also take note of the following precautions:
Precautions for Designing the Motor Control Circuit and Software
(1) Stop step
To stop the motor, excite for a single step period with a phase that is the same as the final one
in the printing step.
(2) Pause state
In the pause state, do not excite the step motor to prevent the motor from overheating. Even
when the step motor is not excited, it maintains a holding force to prevent paper from sliding.
(3) Start step
To restart the motor from the stop step, shift the motor into the printing sequence.
To restart the motor from the pause (no excitation) state, shift the motor into the printing
sequence after outputting a single step of a phase that is the same as that of the stop step.
Figure 3-5
Motor Start/Stop Timing
STOP
STEP
PH2
PH1
PRINT STEP
PRINT STEP
H
L
L
H
H
L
L
H
PAUSE
STATE
START
STEP
PH3
PH4
1 DOT LINE



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