With the machine unplugged, check all of the head cable connections (head and slider board) and all of the connections to the main board. In transportation one or more of the cables may have been knocked out and the printer tries to protect itself.
If all of the cables are good, unfortunately a common problem with Mimaki JV3 printers is that the main board breaks and causes this symptom. If absolutely nothing happens when you turn on the power, try this. With the machine unplugged, disconnect the power cable the goes from the power supply to the main board. It's a big colorful cable. Plug the machine back in and power on. If the power supply fan comes on, your main board is broken.