Some printers will respond to the contents of the Postscript dictionary statusdict. One can edit a Postscript file and adds lines like
statusdict /setpapertray known {statusdict begin 1 setpapertray end} ifand
statusdict /setpapertray known {statusdict begin 0 setpapertray end} if statusdict /setduplexmode known {statusdict begin true setduplexmode end} ifimmediately after the initial comment block --- this will have the effect of selecting the paper-tray and single/double-sided printing.
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