Lexmark 21Z0294 Technical Reference - Page 209
dostart stackoverflow
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4-23 PostScript dostartpage - dostartpage boolean Returns a Boolean with the same value as the system parameter DoStartPage. The DoStartPage system parameter must be present for the compatibility operator dostartpage to be present. Error: stackoverflow dosysstart - dosysstart boolean Returns the current value of the StartupMode system parameter. A Boolean value is returned: true StartupMode set to 1 or 11 false StartupMode other than 1 or 11 This operator is equivalent to executing the following PostScript emulation sequence: currentsystemsparams /StartupMode get Error: stackoverflow duplexer - duplexer boolean Queries if a duplex unit is installed. A Boolean value is returned on the stack: true duplex unit is installed false duplex unit is not installed Note: For printers that do not support duplexing, this value is always false. Error: stackoverflow