Configure settings to crease only the perfect binding covers.
All the following options are required to use this function.
The following setting is required to use this function.

Setting item | Description |
|---|---|
[(3)Spine] | Creases along the width of the spine. |
[(4)Gutter] | Creases the gutter part to open the cover. |
[(3)Spine+(4)Gutter] | Creases both the spine and gutter. |
[OFF] | Does not crease. |