Roland GR-540 User Manual page 356

Loading Flat Material
This example uses flat, A4-size material to explain how to load the material.
If using roll material or other material, refer to
Procedure
If the pinch rollers have lowered, press [PINCH].
Check that the pinch rollers have risen.
Place the right edge of the material over the grit roller (on the right
edge).
For A4-size material, do not use the middle pinch rollers.
Using Narrow Material/Preventing Marking Made by the Middle Pinch Rollers
"Loading Roll Material" and load the material.
1: Grit roller