I did a firmware update to this machine the other day and the firmware started to load SDF files, then at 95% it stalled then gave a Comm Error Message. I tried an earlier version of the FW, tried a different CF Card but nothing worked. I disconnected the Finisher (DF-730)and was able to load the firmware and the machine worked. As soon as I plugged in the Finisher it threw a C-0440 code. I'm going back today to replace the finisher main board, but this machine was working fine until I tried to update the Firmware, anyone ever see this before? Thanks.

Finisher Main PCB fixed it.