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Troubleshooting
LED Status Indicators
State Bluetooth
LED
(blue)
Power/Status
LED (green,
and amber)
Description
Power on self test
Blinking
Blue
Blinking Green
Blinks for the duration of the power on
self-test.
Ready
N/A
Solid Green
Self-test passed. Device ready.
No Bluetooth
connection or
activity
Blinking
Blue
N/A
Device is waiting for a Bluetooth
connection – no connection is currently
established.
Bluetooth
connection
Solid Blue
N/A
Bluetooth connection established.
Bluetooth activity
(RX or TX)
Flickering
Blue
N/A LED
flickers
when there is Bluetooth
link activity.
Printer I/O
activity/self test
page
N/A
Blinking Green
USB or 1284 (parallel port) activity.
Printer adapter
error, Self test
failure, Flash
update failure, USB
overcurrent
N/A
Blinking Amber
Any firmware or hardware failure not
covered by other states.
Failure to
communicate with
printer (I/O error)
N/A
Solid Amber
Printer communication error.
Configuration/Firm
ware update mode
N/A Amber/Green
toggle
Bi-colored LED toggles while in
configuration mode and while the flash
memory is being reprogrammed.