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56 Maintenance and Adjustments
5.2.1 Optional LCD/Keypad Front Panel Alarms
If the Printer is equipped with the Optional LCD/Keypad Front Panel, it has
built in monitors for the Printer status and stock conditions. The alarm
messages will be displayed on the front panel LCD display indicating the
present status of the Printer, stock levels, or whether the Printer’s electronics
have detected an error condition.
LCD Display Alarm Description
PROM FAULT
Power up initialization detected a PROM failure,
call for service.
RAM FAULT
Power up initialization detected a RAM failure,
call for service.
RTC RAM FAULT
The RTC Non Volatile RAM failed its checksum
test, call for service.
PRINT HEAD FAULT
The Thermal Printhead Control Circuit failed, call
for service.
ADC FAULT
The Analog to digital converter failed, call for
service.
TOF FAULT
The Printer failed to find the top of form position.
Possible causes:
• Defective stock
• Maximum Label Length, (set from
communications or front panel), is smaller than
one form.
OUT OF STOCK
The Printer is out of stock.
RIBBON FAULT
The ribbon system detected a fault
Possible causes:
• Out of ribbon
• Ribbon motion was prohibited
• Obstructions in the paper movement may cause
ribbon faults.