instruction book - Janome

Automatic Buttonhole
16
Sensor
Variety of buttonholes
#16 Square buttonhole (Sensor buttonhole):
Widely used for medium to heavy weight fabrics. The buttonhole size is
automatically determined by placing a button on the back of the automatic
buttonhole foot.
#17 Square buttonhole (Auto buttonhole):
17
Similar to the sensor buttonhole, but you can set the buttonhole length as
desired and memorize it to repeat the same size buttonholes.
Auto
#18 Round end buttonhole:
18
For fine to medium fabrics, such as blouses and children’s garments.
#19 Keyhole buttonhole:
19
For medium to heavy weight fabrics, such as jackets and overcoats.
#20 Knit buttonhole:
20
For stretch fabrics such as knits. Also used as a decorative buttonhole.
#21 Fine fabric buttonhole:
21
Suitable for fine and delicate fabrics such as a fine silk. Both ends are
rounded.
25