User guide

Thermistor error
The termistor is malfunctioning or not installed. The foil cable of the print
head is malfunctioning or not connected.
All LED
The following unrecoverable errors may occur when switching on the prin-
ter, all LEDs will be blinking in a cycle of approx. 4 sec:
Hardware error
This error refers to RAM, ROM, microcontroller. The blink code will be re-
peated continuously. The controller has to be changed.
Loading error
With a loading error (wrong checksum), the blink code will be repeated
continuously. The Flash EPROM has to be changed.
Appendix Blink codes
GB - 51