Datamax-O'Neil microFlash 2te Quick Reference Programming Guide - Manual (Page 67)

Querying the Printer
63
Datamax-O’Neil Quick Reference Programming
Card Reader Status Query
Card Reader Status Reply Explanation
Card Reader Status Query
Query Format
ESC{RS?}
Reply Format {RS!P:n;S:n;G:n;R:n}
Function Returns data read for a swiped magnetic card. The reply to
the card reader status query can be automatically generated
if the AutoSend option is on.
Reply Example {RS!P:0;S:0;G:0;R:0}
Reply
Explanation
RS! - Reply to a card reader status query.
P:0; - SmartCard power is off.
S:0; - A card is not seated in the reader.
G:0; - The green LED is off.
R:0; - The red LED is off.
Query Reply Definition
P 0,1 0=SmartCard power is off; 1=SmartCard power is on.
S 0,1 0=A card is not seated in reader; 1=A card is seated in
reader.
G 0,1,F 0=Green LED is off; 1=Green LED is on; F=Green LED is
flashing.
R 0,1,F 0=Red LED is off; 1=Red LED is on; F=Red LED is
flashing.