[cups] Printing ps

[ALi]

Well i am doing an error because i am asking without trying .. but perhaps
someone can help me faster .....

we are generating a postscript file with BIRT, and trying to print it with
default options of the printer ... so if the printer has duplex=no
(although it has) not to use it. and it printer has a4 to convert the
postscript file to a4 ( i dont know if it is possible or not)

so ... now the file is sending to the printer without default options of
the printer. how can we set the default options to the postscript file?