Any suggestions would be greatly appreciated! I have a Mimaki Jv3-160s. I had to change a damper on it yesterday and also while I was there I changed two of the ribbon cables that connect to the print heads. Anyway, when I fired the machine back up, I got a display message that stated error 07 head. I went back and checked the ribbon cables (not sure if that is the correct name for them) and one did not have a good connection. I re-connected it, put everything back together, fired the printer up and it ran through all of its startup process. I pressed the button to size the material, which it did with no problems, I then pressed the test print button, the print head moved down the rail like it was printing, but it did not print anything, no colors whatsoever. Before it was printing everything except for yellow (what I changed the damper on). Now nothing! No error messages or anything. Please help!