How to Print Documents from Mountain Lion
The actual act of printing a document from your Mac running OS X Mountain Lion is pretty simple. Just follow the steps here, and in a few minutes, pages should start popping out of your printer like magic.
Open a document that you want to print.
Choose File→Print (or press Command+P).
You see the basic Print sheet.
Wait a few minutes for the network to tell the printer what to do, and then walk over to your printer to get your document.
Choosing File→Print (Command+P) won’t work for you if any one of the following is true for the software you’re using:
The Print command is on a different menu.
There is no Print command. (Hey, it could happen.)
The Print keyboard shortcut is anything but Command+P.
If any of the preceding is true for a program you’re using, you just have to wing it. Look in all the menus and check out the product’s documentation to try to get a handle on the Print command for that pesky program.