59 Workstation Series User’s Guide
6 Troubleshooting
LED Indicators
The printer LEDs are also used to indicate errors and warnings. Refer to the following 
chart:
Table 1: LED Indicators 
Errors
The following errors may occur:
Action Green LED Red LED Notes
Warning Not affected by 
Warning
Slow blink
Error Off Solid
Control Mode Short blink with a 
delay
Not affected 
by Control 
Mode
Only applies when printer is in 
configurator session 
Printer is not operational during this 
time
0.1 seconds on and 2.3 seconds off
Data Processing  Slow blink Off
Hardware Failure Off Fast blink
Cooling or Processing 
with Warning
Slow blink Slow blink LEDs blink in sync
Maintenance Needed Not affected by 
Maintenance Needed
Short blink 
with a delay
0.8 seconds on and 3.2 seconds off
Label Presented Fast blink Not affected 
by Label 
Presented
Waiting for the operator to remove the 
label or press ‘Resume’
Errors Description
SYSTEM ERROR Software or label format error. Communication rate too slow.
OUT OF PAPER Out of paper
PRINTHEAD HOT Printhead is too hot
FPGA HARDWARE Analog to digital converter hardware fault
NV RAM HARDWARE Non-volatile memory hardware fault
PAPER SENSOR BLOCKED Top-of-form sensor hardware fault or sensor calibration 
performed with paper installed
PAPER CALIBRATION Could not calibrate media