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2.7 Status messages
The status of the device is sent to the serial port. To get a visual feedback of the signallings is necessary to build a cable
to be connected to the serial port (see
).
The status LED indicates hardware status of device. Given in the table below are the various LED signals and the cor-
responding device status.
STATUS LED
DESCRIPTION
OFF
DEVICE OFF
ON
DEVICE ON: NO ERROR
RECOVERABLE
ERROR
x 1
RECEIVE DATA
x 2
PRINTHEAD OVERHEATED
x 3
PAPER END
x 4
POWER SUPPLY VOLTAGE INCORRECT
x 5
RECEPTION ERRORS
(PARITY, FRAME ERROR, OVERRUN ERROR)
x 6
COMMAND NOT RECOGNIZED
x 7
COMMAND RECEPTION TIME OUT
x 8
COVER OPEN
x 9
PAPER JAM
x 10
AUTOCUTTER ERROR
x 11
RAM ERROR
x 12
EXTERNAL FLASH MEMORY ERROR
x 13
LOW PAPER
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