Roland SOLJET Pro III XC-540 Service Notes page 176

Move the cap upward to the position that the cap
4
contacts exactly to the head, then press [ENTER] to
update the adjustment value.
-When you press [ ] key, the cap moves upward in 0.25mm
unit.
-When you press [ ] key, the cap moves to the position in the
setting value -2.00mm.
-When you press[ ] key, the adjustment value is not updated
and the capping is carried out, and then exiting the menu.
If it is difficult to see whether Head makes
contact with Cap, irradiate the plate behind
the Head Carriage with a penlight.
Move the cap upward, and when the light on
the back plate cannot be seen through the
gap between Head and Cap, it means that
Head makes contact with Cap.
Check the adjusted Capping Position.
5
Enter the [CHECK GAP.] menu.
The Cap moves to the the same position as the Cap
Evacuation. Confirm that there is a gap between the Cap
and all Heads.
[CHECK GAP.] menu is for checking the gap
between the Cap and Head. For adjustment, use
the [ADJUST POS.] menu.
CAP ADJUST
ADJUST POS.
4-45
[ ]
ADJUST POS.
HEAD
0.00 -2.00
CAP
GAP