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Troubleshooting 
Occasionally, situations arise that require troubleshooting. Possible problem situations and 
potential solutions are listed in this section. While not every situation is addressed, you may find 
some of these tips helpful. After the corrective action is taken press the Control Button to clear 
the alarm. Contact a qualified service technician for problems that persist or are not covered in 
this section. 
 
  
If experiencing this problem…  Try this solution… 
No power, Status light is ‘Off”: 
• Verify that the AC power cord connection has been made at both the 
outlet and the printer. 
  
• Verify that the AC outlet is functioning, or try moving the printer to another 
AC circuit. 
  
• The AC cord or External Power Supply may be damaged; replace it. 
Will not print, Flashing LED: 
• Printer is paused; Press the control button. 
  
• Out of stock fault detected; Ensure the media guides
 are set to a width 
appropriate for media being used. 
  
• Top of form fault detected due to missing label(s). Maximum label length 
has been exceeded before detecting a label edge; Check for properly load 
media and press the control button to feed to next label. 
  
• Top of form fault detected due to improper Top of Form sensing selection; 
Change sensing appropriate for the media in use with printer driver 
properties or using Datamax Printer Configuration Utility (DMXConfig). 
  
• Top of form fault detected due to improper Maximum Label Length for 
media in use; Consider increasing Maximum Label Length using Datamax 
Printer Configuration Utility (DMXConfig). 
  
• Top of form fault detected due to improper Top of Form Sensor calibration 
for media in use; Consider performing Top of Form Sensor Calibration 
using Datamax Printer Configuration Utility (DMXConfig). 
 
Will not print, LED ON: 
• Present sensor is enabled but the Present sensor switch is in the OFF 
position; Move the present sensor switch to the ON position. 
  
• Presented label detected; Remove presented label. 
  
• No communication from host computer to printer; Check cable 
connections and printer driver setup/port selection. 
 
Printer attempts to print with 
motor "groaning noise": 
• Label backing wrapped around platen roller; Remove platen roller
, clear 
jam, and press control button. 
 
• Incorrect Power Supply; be sure to only use the power supply shipped 
with the printer. 
 
Start of print registration not 
consistent: 
• Media guides positioned too wide for media; Adjust media guides
 firmly 
against the edges of the media.