F-2 cab Produkttechnik GmbH & Co KG
8. In the event an error occurs during the updating process, the error code
will be displayed on the LCD:
'C' : Check sum error (possibly "/b" missing in COPY command or
a corrupt firmware file)
'H' : Header fault (possibly "/b" missing in COPY command or a
corrupt firmware file)
'E' : EPROM could not be erased
'V' : Programming voltage too low
'P' : Programming fault
NOTICE !
If any one of the faults described above occurs, the previous firmware
setting is invalid and the update has to be started again. In some special
cases, it is possible that the printer will not return to normal operation
mode after powering on after a failed firmware update. In this case,
upload a previous firmware file over the parallel interface after powering
on.
Appendix F - Firmware Updates