I got an used jv3 spii mimaki printer. Changed 4 colors to six, no problem, changed printheads, no problem. Evrything moves, no errors. But i can´t connect to my pc. I have 2 pc´s, one with firewire card and one with lpt port and any of them recognizes the printer. I removed the firewire board and the printer showed error, re install and everything is fine but still not recognized. Are both ports damaged and no report of errors? I have a 6 to 6 female firewire cable, any ideas?