After you create your envelope and select the page size that you want, you are ready to print your envelope.
On the File menu, click Print, and then click the Publication and Paper Settings tab.
Check the Preview window. If you are not sure how to insert your envelope, click Show how to insert paper, and then click Open the Envelope Setup dialog box.
In the Envelope Setup dialog box, the image with the thick blue border shows the recommended option for your printer.
Click OK, and then click Print.
Note: The number of trays and options vary depending on the manufacturer, type, and model of the printer that you are using.