Xerox : Troubleshooting : General Troubleshooting : Automatic 2-Sided Printing Problems
Automatic 2-Sided Printing Problems
Probable Causes
Solutions
Unsupported or incorrect paper.
Ensure that you are using the correct paper. Do not use envelopes, or labels for automatic 2-sided printing. For details, refer to Supported Paper.
Incorrect setting.
On the print driver Printing Options tab, select 2-Sided Print.