Xerox 4213 MICR MRP Betriebsanweisung

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SPECIAL FEATURES
@
The interface escape character
Y202
The command that sets Enter Transparency mode
Y203
The command that sets Exit Transparency mode
, (comma)
The command delimiter
'<string>'
The command string used to enter or exit the
Transparency mode. A single or double quote
must begin and end the string. 
The strings, up to eight characters long, must
not be the same for different mode strings, but
can be the same for the enter and exit strings of
a particular mode.
An attempt to set the string for one mode to be
the same for another, or to be the same as the
interface escape character, causes the command
to be rejected.
@
The interface escape character
Single Byte Transparency mode
Single Byte Transparency mode sends to the printer ISO6937
control codes which cannot normally be sent in the datastream.
The format of the Single Byte Transparency mode is a three-byte
sequence as follows:
@X'
nn'
The two characters following the interface escape character
define an ISO6937 code point. Only the characters A-F and 0-9
are valid characters for defining the hex codes. Invalid sequences
are discarded without being printed.
Example:
@0D @0A executes carriage return, line feed.
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XEROX COAX/TWINAX OPTION (XCTO) PROGRAMMER REFERENCE