How to match the center of the button with the needle? ZJ-1903D-301-3/04 V4

ZOJE ZJ-1903D-301-3/04 -V4
single needle lockstitch computerise machine
ZOJE Simple Series sewing machine ZJ-1903D has been designed to have
simplified and narrowed down capabilities that are essentially required to
produce ZOJE established seamquality.In addition, it supports the operator
with the voice guidance system to improve work efficiency.
Electronic bartack / button sewer machine (Includes clamp change kit),
one machine for 2 types of jobs and a wide range of functions.
Easy and intuitive touch-screen panel, the panel shows the functions and drawings.
The machine sews at a maximum speed up to 2700 stitches per minute.
Sewing machine equipped with automatic thread trimmer and start stitch controller.
The programmable ZOJE sewing machine is designed for sewing medium fabrics. ZOJE ......

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