LTPH245 datasheet(21/64 Pages) SII

Il numero della parte	LTPH245

Spiegazioni elettronici	LINE THERMAL PRINTER MECHANISM TECHNICAL REFERENCE

PDF	64 Pages

Scroll/Zoom	100%

Produttore elettronici	SII [Seiko Instruments Inc]

Homepage	http://www.sii.co.jp

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21 / 64 page

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

PAUSE

STATE

START

STEP

PH3

PH4

1 DOT LINE

LTPH245 Scheda tecnica(PDF) 21 Page - Seiko Instruments Inc