4、Key function description
4.1 .Function description of the button
（1）：Power switch: press the power switch to on, and the equipment is powered on and
ventilated.
（2）：Pedal: the front foot pedal controls the sewing of the machine, and the rear foot
pedal controls the lifting of the pressing wheel and the flower wheel。
（3）：Touch screen
a. Power on interface：
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