b&c data system EzW User Manual page 31

Command: Communication test
Command code: <ESC> e
Hex code: 1B 65
Response: <ESC> y [1B] [79]
Description: This command is used to verify that the communication link between
computer and the EzWriter is up and good.
Command: All LED off
Command code: <ESC> <81>
Hex code: 1B 81
Response: none
Description: This command is used to turn off all the LEDs.
Command: All LED on
Command code: <ESC> <82>
Hex code: 1B 82
Response: none
Description: This command is used to turn on all the LEDs.
Command: GREEN LED on
Command code: <ESC> <83>
Hex code: 1B 83
Response: none
Description: This command is used to turn on the Green LED.
Command: YELLOW LED on
Command code: <ESC> <84>
Hex code: 1B 84
Response: none
Description: This command is used to turn on the Yellow LED.
Command: RED LED on
Command code: <ESC> <85>
Hex code: 1B 85
Response: none
Description: This command is used to turn on the Red LED.
10. Command: Sensor test
Command code: <ESC> <86>
Hex code: 1B 86
Response: <ESC> 0 [1B] [30] if test ok
Description: This command is used to verify that the card sensing circuit of the EzWriter is
working properly. The EzWriter does not response until a card is sensed or the
Reader/Writer receives a RESET command.
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