Epson TM-U295 printing error

I had connected this printer “Epson TM-U295” on another computer and it was working well. Later i decided to swap/interchange to another computer.
This is where the problem lies, after swaping, the printer is not working at all,even if i return it back to the first computer where it was working. its displaying a message “document failed to print”.
Any one there with a solution on this, please it will be highly appreciated.