Lexmark X925 Forms and Bar Code Card Technical Reference Guide - Page 68
FREESCAPE emulation, To set an AEC with a PCL 5 sequence
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FREESCAPE emulation The escape character (decimal 27, hex 1B), found at the beginning of a standard PCL 5 emulation sequence, is an example of binary data. Not all systems are able to send binary data (non-printing characters) to a printer. The FREESCAPE emulation feature provides a way for these systems to redefine the escape character by substituting a user-selected alternative (alternate escape code or AEC). When the AEC is located at the beginning of a standard PCL 5 emulation sequence, it is interpreted exactly like the escape character. Note: The AEC can still be used as data. When found as a command data, it is treated as such. FREESCAPE emulation also permits the use of the escape character and AEC within the same sequence of commands. The tilde character (~) is the default AEC. To set an AEC with a PCL 5 sequence: Use either of the commands listed in the following table to change the AEC. The # represents the ASCII code of the AEC. Use one of the ASCII codes listed: Command Function/Parameter Esc**#J ASCII code Character 34 " or 35 # AEC**#J 36 $ 47 / 63 ? 92 \ 123 { 124 | 125 } 126* ~ * Default value Example: Esc**124J changes the AEC to "|" FREESCAPE emulation can be deactivated by setting the AEC value to that of the escape character (decimal 27, hex 1B). To deactivate FREESCAPE emulation, send the command: AEC**27J. FREESCAPE emulation 65