Differences With Single-Needle Machines - Brother PR-620 Operation Manual

Not all six needles can be used to sew at the same
time. Only one needle is moved to the embroidering
position at a time. According to the sewing order, the
needle bar case is moved to the left and right so that
the needle bar and needle thread with the required
color can be moved to the embroidering position.
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1 Needle at the embroidering position
The needle is positioned over the hole in the
needle plate 2.
When starting the machine, the presser foot is
automatically lowered, and the embroidery is sewn
while performing pulling thread from the materials at
the thread trimming and while changing thread
colors (moving the needle to be sewn within the
embroidering). When sewing is finished, the
machine stops. If the pattern uses seven or more
thread colors, the machine will stop when it is
necessary for the thread spools to be changed, and
the corresponding instructions appear on the LCD.
Differences with single-needle
machines
■ Can sew embroidery patterns using six or less
colors without the need to replace the thread
spools
With single-needle machines, the thread spool
must be changed and the machine must be
threaded each time a different thread color is
used. With this machine, it is not necessary to
change the thread spool or rethread the machine
with embroidery patterns containing six or less
colors. If total colors are less than 6 colors, and if
total color change is more than 7 times, machine
will come back to the needle that the machine is
already used and sew the same color again
automatically.
1
■ Automatic sewing reduces sewing time
Except to change the thread spools with patterns
containing seven or more colors, once the
machine is started, it continues to operate
automatically, from lowering the presser foot to
performing the specified operations at the starting
and end positions in addition to changing the
thread colors. Since the machine can change
threads and finish stitching, sewing time is
reduced.
■ Automatically pulls and holds the thread tails to
the under side of fabric at the beginning and end
of stitching
Since the machine automatically pulls the upper
thread under the fabric at the beginning of a
color, and pulls the upper thread from the fabric
at the time of thread trimming, you don't need to
deal with the upper thread tail at all.
■ Automatically moves the embroidery frame to
the embroidering position
With single-needle machine, in most cases, the
embroidery pattern is centered in the frame and
the fabric must be correctly positioned within the
embroidery frame with the center of the desired
embroidering position aligned with the center of
the embroidery frame. However, with this
machine, the embroidery frame is moved to
determine the embroidering position, making it
easier to sew the pattern at any place in the frame.
In addition, the embroidering position can be
freely determined after the fabric is hooped and
the embroidery frame is attached to the machine,
regardless of how the fabric is positioned in the
embroidery frame.
Machine Structure and Features ix