Printing in duplx

[PMRetired2012]

What im wanting to do is print several worksheets front and back instead of printing 2 pages. i am using the code (ExecuteExcel4Macro) "PRINT(1,,,1,,,,,,,,1,,,TRUE,,FALSE)"
i understand there isnt any way to setup duplex using that syntex.
So what are my options with writing code to set it up to where i can print in duplex on 12 pages but not the total 15 that is in thte workbook?

Thanks