Moving a printer...
Hmmm...
The safest way to move a printer (any significant distance) is to remove the ink from the system via a "pump up"... or a "head wash" which flushes cleaning solution through the system then empties it. Transporting an inked-up printer any significant distance will risk leaks inside the machine. Also, since the ink system is gravity based, tipping an inked machine may cause some leakage inside the machine.
A specific factor with moving the SP-series (or any Roland printer where the cap tops are raised/lowered via an elevator) is that the bumping around during transportation can lower the captops just enough that they no longer seal the heads. I find that it's a good measure to use the manual captop tool (affectionately known as the crack pipe) to add just a hair of tightening before a move. Having an machine uncapped for a few days can be a problem.
Now with all that said... all you probably need is to prime your system. Try a couple of Medium cleans (stay away from powerful cleans). If you don't see ANY results, then you probably have to use a syringe to pull some ink through your system. If you are not experienced, then I suggest getting the help of an experience operator or qualified service tech. If you are experienced and need some guidance, please PM me and I will assist.
(There is a slight possibility that you had ink leakage inside the head carriage and blew the heads. If you see ZERO nozzles firing after pulling ink through the heads, then you probably have serious problems)
~E
