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Source Technologies, LLC ST9630 Secure MICR Printer User’s Guide
48
Escape Character Translation
In many IBM host environments, the programmer cannot send an ESC character (ASCII
hex 1B) to the printer from within the application. Your Secure MICR Printer allows you
to define the ESC character as a printable character or a combination of two printable
characters. You can select combinations of 1 or 2 characters which are translated to a
Hex 1B when they are sent to the printer.
The command &%STYxxyy$ is used to select the character or character combination.
The pair xx represents the first characters’ ASCII hex value, yy represents the second
characters hex value.
Example: The symbols @@ should be translated into the escape character.
&%STY4040$
After this is sent to the printer, anytime an @ @ is received in exact sequence, the pair
is translated into the ESC character (Hex 1B). A single @ would print normally.
If yy is equal to 00, only the first character is used for the escape character.
Example: The symbol @ should translate into the escape character.
&%STY4000$
After this is sent to the printer, anytime an @ is received it is translated into the ESC
character. This means that the printer will never print the @ character. The only invalid
single characters are the & (HEX 26) and a null (00).
Example: &%STY2300$ #&l8D
The printer would translate the number sign (Hex 23) to the ESC character and it would
act on the sequence Esc&l8D which will set line spacing to 8 lines per inch.
If you want to reset the ESC character translation from the previous settings then you
can send the &%STY Command to deactivate the translation.
Example: &%STY0000$ 8
IBM Host Programming Features and Examples | 7