A-Class  107 
 
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’ sensor 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 using 
the power switch, try moving 
the printer to another location 
and if the condition persists, 
call for service. 
 
HEAD NEEDS CLEANING 
The scheduled printhead 
cleaning distance has been 
reached. 
Clean the printhead (see 
Section 5.5.1). 
 
To change the cleaning setting, 
enter Media Settings / 
Printhead Cleaning Menu. 
HOST CHANGES PENDING 
The host has changed the 
configuration of the 
printer, but those changes 
cannot take effect until a 
‘host reset command’ is 
issued. 
To save these changes, send a 
host reset command (in DPL); 
or, to discard the changes, 
perform a soft reset (see 
Section 5.6.1).