Roland VersaCAMM VP-540 Service Notes page 190

Move the Head Carriage to the highest position of the
5
bed.
Confirm that Head Carriage is connected to Tool Carriage
and lock the connected carriages.
The right end is the highest position of the
bed.
Turn the Adjustment Screw to adjust the space between
6
the Pen end and Bed to be 2.5mm to 2.6mm.
Move on to the TOOL PRESSURE ADJUSTMENT.
4-49
Click!
ADJUSTMENT
SCREW