DayJournal has been updated and now gives the option to create a complete journal archive file. This creates an html file in your DayJournal folder (find it by selecting View Journal Files and look in the Journal Archives folder). Open that html file in your browser to print a physical copy of your journal entries. The html archive page uses special styles so that when you print it, it looks good. Take a look at an example and check out the print preview!
Note: Using Google Chrome (or Chromium) works best for printing because it has a great print preview screen where you can choose which pages to print and hide the headers and footers to be printed.