User guide

Firmware error
When a firmware error occurs (wrong checksum) the blink code will be re-
peated three times. Subsequently, the printer is in loading mode. The yel-
low LED “Document” is on. It is necessary to load the firmware again.
Checksum error
The blink code will appear once when a checksum error occurs after po-
wer up. A checksum error may occur at the self test, the character set, the
software stamp or at the space page. You may find further information
about the checksum error on the printout of the self-test.
Blink codes Appendix
GB - 52