System Preferences, a built-in OS X application analogous to Settings on the iPhone, iPod touch and iPad, lets you customize the Mac to your liking.To launch System Preferences, click its icon in the Dock or
choose System Preferences in the Apple menu. However, you can select any preference pane via the app’s shortcut menu in the Dock. So do yourself a favor and click and hold the System Preferences icon in the Dock.
You may find you need to perform a variety of printing tasks. Adjusting your Mac OS X print preferences is a way to save your preferred printing settings, saving you time. Using System Preferences, you can select multiple printers instead of individual printers. Your Mac will automatically select the printer which is free, and no longer you need to wait! You can specify the paper size when you print.
Choose File > Print. If the Print dialog has a Paper Size menu, choose a size. The System Preferences application is found in your Applications folder. It is also available from the Apple menu at the top-left of the screen. It may also be in your Dock at the bottom of the screen – the icon is a set of interlinked cogs.
“There is no joy in possession without sharing.” Go to System Preferences -> Sharing and check the Printer Sharing service.When you activate this option, and when your Mac is on you can share your printer access wirelessly to your friends.