The only warranty we've ever had with any of our machines was what was included with the purchase. After that we've taken care of all the service unless it wasn't doable, then paid to have someone come in.
It's always been way less expensive to do it ourselves even if we have to have someone come in. I think AGFA wanted something like $30,000/ year for a service contract. And that didn't include heads.
UV Flatbed Machine History
Gandiinovations Jeti 3150 (Retired After 5 years)
AGFA Jeti 1224 HDC (9 Years old. Still in Use)
Oce Arizona 660XT (Sold After 2 years)
AGFA Jeti Titan HS (5 Years old. Still in Use)