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EPC1200 SERIES OPERATION MANUAL
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5.8- ERROR PROCESSING
5.8.1- Error types
When an error occurs, the printer visually notifies its type through the LED. This fact allows the
final user to have a direct and visual reference of the current printer status.
On the other hand, the printer status and all its possible errors can also be monitored via software
through the
DEL EOT
command. In this way, the application developer can have more complete
information on the printer status, therefore being able to act accordingly.
The errors detected by the interface are the following: ‘near-end paper’, hardware error, power
supply voltage error and printing head temperature error.
When any of these errors happen, the led blinks with a different blinking timing sequence for each
of them. If no error happens the led will light permanently green.
ERROR
Sequence (RED BLINKING) (a = 0,5 seconds , b = 2 seconds.)
HARDWARE
VOLTAGE
ERROR
TEMPERATURE
NO PAPER /
DOOR OPEN
Fig. 18. -
LED Blinking sequence (RED)
More information on these errors can be found below:
HARDWARE ERROR
[Description]
At initialization, the printer internally checks its hardware devices. If they do
not function properly, an error occurs.
[Recover action] This error cannot be recovered. One of the control board components might
be damaged and should be replaced or repaired.
POWER SUPPLY VOLTAGE ERROR
[Description]
The power supply voltage is out of range (5VDC + 10%).
[Recover action] This is a recoverable error. Unplug the power supply from the printer and
check if the output voltage of the power supply is within the specified range.
Replace it in case it is not working properly.
[Note]
When this error occurs, some parts of the printer may be damaged. If this
happens, the printer will be unable to recover itself and some of its
components are likely to be replaced.
THERMAL HEAD TEMPERATURE ERROR
[Description]
Due to very continuous use of the printer or due to environmental conditions,
the temperature in the thermal head may reach levels (above 80ºC), which
t
4
4
t
7
7
t
Orange (no blinking)
t
6
6
Led ON
Led OFF
Led ON
Led OFF
Led ON
Led OFF
Led ON
Led OFF