Datamax-O'Neil APEX Series Programmer’s Manual - Manual (Page 64)

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Error/ Warning LED Panel
LED # LED Color/ Status Description Action Required
LED # 1
Communication
RED/ Steady Low power indication: Charge battery
(#1) GREEN/ Flashing
(#3) RED/ Flashing
Printer is in RS232 or USB
mode and Printer Buffer is not
empty.
Press Feed to clear error. Cycling printer
power will result in printer buffer data loss.
LED # 1
&
LED # 3
(#1) BLUE-GREEN
Flashing*
(#3) RED/ Flashing
Printer is in Bluetooth mode
and Printer Buffer is not empty.
Press Feed to clear error. Cycling printer
power will result in printer buffer data loss.
GREEN
Momentary flashing 
RED Flashing
Printer has discovered and is
parked on the Q-Mark
Advance Q-Mark to tear bar level to continue
(refer to manual for Q-Mark commands)
RED
Flashing
Paper Error/
Paper Door Open/
Dip Switch 5 and 7 are ON
Insert paper properly (refer to User’s Guide)/
Close paper door to clear error/
Place printer in correct mode
RED
Steady
Print Error: Printer out of paper Replace roll of paper
LED # 3
Magnetic Card
Reader
&
Printer Error
RED
Flash Fast
Print head is hot. Printer will
stop printing
Allow print head to cool off: restart print
temperature recommended is 75
o C
Blue
Flashing
Firmware upload via serial
cable is completed successfully
Cycle printer power to continue