did you ever get that issue fixed I have 3 units that all giving me the same issue on both ACRO Rip and cad link dtf softwares all cause same issue says something about CPU failure yet if i print through standard print no issues also only have this issue with the 4000 series i built no issues with 4800 or 4880 also have done few 800 and again no issues just the 4000 printers do it to me so little frustrating