On the Reporting|Reminders screen using the Print button to print a selected reminder fails saying that there is no template for the current sent count - see screen snippet below.  However, there is - see second snippet.  If you run "Send All" it prints happily with no error.

But it does:

And here is the document template itself:  Note that although not shown on the above two snippets the currently selected Practice Location is EIAH and as you can see below a printer is defined for this (and this is where the reminder from Send All happily printed)