A few weeks/months back I mentioned that HP had managed to develop sublimation ink that work in their bubble jet heads ... We bought one, and it was delivered to us on Tuesday this week.
I gave up faffing about trying to get Epson 11880 machines working with Sublinova - not sure if we had bad luck on the two we bought, or if the DTI ink isn't good for them (Inktec says it should have been fine.) But anyways, we now have a brand new machine, with warranty, and have had brilliant support from RA Smart, with them doing a good job of creating ICC profiles to match quite closely the output we had form our old Epson 9600 machines.
Wow, this machine is fast - even on its slowest/highest quality setting, it's about 10 times as fast the old 9600 printers! We have a massive print queue backlog at the moment due to some FaceBook advertising going way better than expected, and this is going to clear it quite quickly now!