You can find this information at http://www.support.xerox.com/support/workcentre-7755-7765-7775/support/enus.html?associatedProduct=X...
Or Visit http://www.xerox.com/support and type in your model number then select support. Type in Default Copy Output and it will come up.
Cheers,
Jordan
On the WC7765 with finisher attached, how can i select copies only to use the upper output tray?