Datamax-O'Neil H-Class Operator’s Manual - Manual (Page 121)

H-Class 111
6.1.2 Warning and Fault Messages
The printer displays messages when the possibility of a problem or an actual fault occurs.
Depending upon the displayed message, find the possible action or solution in the tables
below.

Warning and Fault Messages do not appear when in Menu or Test Mode.
Warning Messages
Displayed for about three seconds, Warning Messages assume a low priority and indicate a
pending change in printer configuration, or an operating condition that could lead to a fault.
Warning Messages
Displayed Message Description Possible Solution(s)
24V OUT OF TOLERANCE
The printer has detected
a drop in the 24-volt
power supply.
No action is required. If the
problem continues, cycle the
power OFF and ON.
DOT FAILURE
Defective printhead
elements have been
detected.
Replace the printhead if print
quality becomes unacceptable.
GAP MODE
WARNING LOW BACKING
Only a small difference
exists between the
measured Empty and
Gap readings.
No action is required. During
calibration, labels mounted on a
transparent liner or notched
media may give this indication.
A slight delay in the OUT OF
STOCK message may occur.
GOODBYE
Power has been removed
and printer shutdown is
in progress.
AC line voltage has been lost.
The Power Switch was turned
OFF or the line fuse has blown.
If unable to restore power, try
moving the printer to another
location and if the condition
persists, call for service.