If you mean just for a given single case, then there is the Print Report button on the "third row" of the Manage Case screen.
If you want to edit the layout look at CRM/Case/XMLProcessor/Report.php and templates/CRM/Case/XMLProcessor/Report.tpl.
If you mean from some subset of cases then I don't think there is one specifically to search on case parameters and output the notes, but you could start with the activity detail report and on the columns tab check activity details (I assume that's what you mean by "notes" - the details fields on the activities), and on the filters tab choose Include Case Activities, and then possibly filter the date ranges and contacts.
Also the output of Find Cases contains a small triangle in the leftmost column of the result table. Clicking on that triangle shows the activities, although not the details field of the activities.