Jack C4 - Auto Presser Foot Lifting Introduction

Operating Instructions –auto presser foot lifting introduction
Press auto-presser-foot Key（ ），
to adjust the auto-presser-foot mode，
continually press this key，switch the
auto-presser-foot mode In cycles：Pre
lift、after lift、pre&after lift、Off，
press（ ）to save，5S no action is
back to the standby interface。
parameter association：When P10=1 or P10=3
（Pre lift or pre&after lift），
P17automaticly turns to 1，Auto-presser-
foot-lifter will be on in half-auto mode