Roland GR-640 User Manual page 66

Changing the Blade Force
If the material was not cut correctly (for example, if the result of the cutting test was
that two shapes peeled off together), change the blade force.
Procedure
Check that the PEN FORCE slider is at the center
position (at "0" on the scale).
Press ［CUT CONFIG］ to display the following
screen.
Press [ ] to display the following screen.
Press ［ ］ to display the following screen.