Click the Print button to display a new browser window with a version of the map that is more printable. After printing click "Return To Map". Some browsers prevent web pages from opening a new window. If the print preview window does not display change your browser settings to allow this page to display popup windows.
Other things you can print
The action menu on the feature form lets you print the information about a specific feature
To print a list of features use the Export option on the action list at the bottom of the browse screen.