TO PRINT 2-SIDED ON 11" x 17" PAPER ON THE HP5550dn COLOR LASER PRINTER...
In Adobe Acrobat, select File -> Print
Next, in the Print options window, click the "Properties" button next to the printer 'Name:" field,
Then select the "Printing Shortcuts" Tab...
Set "Paper Sizes:" to "11 x 17
Click the OK button to return to the standard "Print" window
set "Page Scaling:" to "Booklet Printing
set "Booklet subset:" to "Both Sides
check box for "Auto-Rotate Pages"
Click the OK button to start printing