Paxar 9430R - Manual (Page 37)

Using the Magnetic Card Reader 5-1
U S I N G T H E M A G N E T I C C A R D
R E A D E R
Optional. Your printer may have a magnetic card reader, which reads
up to three tracks of magnetically encoded data from cards conforming to
the ANSI/ISO 7810 and 7811 standards. After reading the data, the printer
returns the information to the host.
Following is a summary of what occurs on a use of the reader:
1 . The host wakes up the printer by sending some characters to it.
2 . The printer responds with an XON character.
3 . The device starts the reader (ESC-M command). The green LED lights.
4 . The user swipes a card.
5 . If the swipe was successful, the reader turns off and the printer
transmits the data read. If an error occurs, the red LED lights. If the
reader times out, the printer transmits a message.
5