Roland SOLJET Pro III XC-540 Service Notes page 171

Loosen the 4 screws fixing the capping unit.
7
Return the carriages to the lock position.
8
After the carriages are locked, push them to
the left lightly to eliminate the looseness.
Adjust the position of the capping unit right and left to be
9
located at the proper position under the Head, with your
hands.
The capping unit can be moved up and down using [ ]
and [ ] keys to help adjustment.
Make sure that the Cap does not bumps the
Head.
After adjusting the position, tighten the 4 screws fixing
10
the capping unit. And then, press the [ENTER] key to
confirm the position with an actual capping.
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