Roland GR-640 User Manual page 249

(3) Enter the Offset Values
Enter the values that you made a note of in
If you want to further reduce the misalignment after seeing the result of printing
and cutting, measure the amount of cutting line misalignment, and then add this
measured value to or subtract this measured value from the offset values.
Set the values as required.
Procedure
Press the [ ] key, and then press the [ ] key.
Use [ ] and [ ] to enter the amount of cutting
line misalignment (in the width direction).
Step 1, No. 4.