Janome Sewing Machine Instruction Book page 58

To sew
Example:
Select pattern 36.
Press the twin needle button .
The LED above the twin needle button will turn on and the
maximum stitch width is restricted to 3.0 mm.
NOTE:
The maximum stitch width is based on a 2 mm wide twin
needle.
Sew at a medium speed.
When changing the sewing direction, raise the needle
from the fabric.
NOTE:
If the selected pattern is not suitable for twin needle
sewing, a warning signal sounds when pressing the twin
needle button.
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