HP T3304 - Manual (Page 39)

Fault Messages
31 Operator’s Guide
If a printer fault occurs, a specific message
appears in the message display. When this
happens, correct the fault immediately.
You can correct most faults by performing a
simple procedure, such as clearing a media
jam or reloading media or ribbon. For more
serious faults, however, call an authorized
Printronix service representative.
PROM Fault
Power–up initialization test detected a
PROM failure. Contact your authorized
service representative.
RAM Fault
Power up initialization test detected a RAM
failure. Contact your authorized service
representative.
RTC RAM Fault
The RTC non–volatile RAM failed the
checksum test. Contact your authorized
service representative.
Printhead Control Fail
Thermal printhead control circuit failed.
Contact your authorized service
representative.
A–D Converter Fail
Analog–to–digital converter failed. Contact
your authorized service representative.
PROM FAULT
RAM FAULT RAM FAULT
RTC RAM FAULT
PRINTHEAD
CONTROL FAIL
A–D CONVERTER
FAIL