M-Class  97 
Warning Messages: 
 
Warning Messages are displayed for a period of five seconds. If multiple warnings are detected, the display will reflect the 
highest priority message.  
 
 
Printer Warning Messages  
 
Displayed Message  Description  Action(s) 
!
!
EPU!GBJMVSF!
!
 
The printer has detected 
defective printhead elements. 
 
 
Replace the printhead if the print quality becomes 
unacceptable. 
 
!
HBQ!NPEF!
XBSOJOH!MPX!CBDLJOH!
!
 
The printer measured only a small 
difference between the ‘empty’ 
and ‘gap’ sensor readings. 
 
Transparent backing or notched media typically gives 
this indication. In this case, there may be a slight delay in 
the ‘Out of Stock’ indication, after the media supply is 
emptied; no action is required. 
 
!
!
HPPECZF!
!
 
Power has been removed and 
shutdown is in progress. 
 
 
The printer power switch was turned ‘Off’, the line fuse 
has blown, or AC line voltage has been lost.  
 
!
!
IPTU!DIBOHFT!QFOEJOH!
!
 
The host has pending 
configuration changes that will 
not take effect until a ‘host reset 
command’ is issued. 
 
 
To save changes, send a host reset command (in DPL); 
or to discard changes, perform a Soft Reset (see Section 
6.7).
 
!
!
MPX!WPMUBHF!
 
The printer has detected a low 
operating voltage. 
 
 
Possible low or fluctuating line voltage level. Try 
moving the printer to another outlet. When more than 
50% black is being printed, try reducing the Heat Value 
or the size of the black image. If the condition persists, 
call for service. 
 
!
!
SUD!SBN!GBJMVSF!
!
 
The printer was unable to save 
settings in permanent memory. 
 
 
 
Possible faulty Main PCB. If the condition persists, call 
for service. 
 
!
!
JQ!EJTDPWFS!GBJMFE!
!
 
The printer was unable to find a 
DHCP server. 
 
This message does not effect the operation of the 
printer and can be cleared from the display by pressing 
the 
FEED
 
button. To stop this from reoccurring be 
sure the menu item ‘IP DISCOVERY’ is set to 
‘DISABLED’, see Section 5.1.6. 
 
!
!
UFNQFSBUVSF!QBVTF!
 
A high printhead temperature 
has been detected. 
 
 
No action required. Printing will resume after the 
printhead cools.