A Firmware Error has occurred.
Try the following:
1. Power-cycle the Printer and to check whether it still fails.
2. If it still fails, upgrade to the latest Firmware revision (as the newer revisions are more stable and solve many of the problems) and check whether it still fails.
3. If it still fails, report the error to the division. In this case, it is important to report the firmware revision the printer is using, the complete error number, which software application the customer is using (name, version, etc.) and as much information as possible about when it occurred.