7ibm host programming features and examples – Source Technologies STI MICR ST9335 User Manual

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Secure MICR Printer User’s Guide

©

Source Technologies

July 2003

Page 28

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7

IBM Host Programming Features and Examples

Hex Transfer

The Hex Transfer feature allows the user to send PCL escape sequence printer commands to
the printer with simple text strings. You may send any valid command or string of commands
with no limit on the length or complexity. Form macros, signatures, or simple commands may
be passed through any platform to the printer since they are simple text. The printer will convert
them back to ESC (escape) sequences when they arrive at the printer. Hex Transfer is
automatically enabled while in MICR Mode. To enable it for all applications use the following
commands:

Turning Hex Transfer On
To enable Hex Transfer, send the following command::

&&??&%

Once Hex Transfer is enabled, the character sequence &% will act as a trigger sequence. Any
data following these trigger characters will not be printed and will be treated as Hex Transfer
data until the Hex Transfer ending character $ is encountered.

Turning Hex Transfer Off
To turn Hex Transfer off, send the following command:

&&??!!

This command will clear the trigger sequence and allow the &% characters to print. This clear
command may be sent at any time to assure that Hex Transfer is disabled. When MICR Mode
is entered, Hex Transfer will automatically be turned on, and when MICR Mode is exited, Hex
Transfer will be turned off unless it has previously been activated outside of MICR Mode with
the &&??&% string.

Section 7: IBM Host Programming Features and Examples

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