Seriously. Just because "it is linux" or "it is an operating system" does not mean it has printing support. I don't remember my "palm pilot" being able to print.

In fact printing support was probably removed for space reasons. The fact that claws-mail has a "print" menu option is more of an oversite in porting from it from debian.

On the other hand user penguinbait did some work to add printing support. See this blog entry for some instructions. Note: these instructions assume a fair amount of familiarity with linux and maemo. Even so, it won't add printing support from maemo applications that don't have it. It'll allow you to print from the command line and possibly certain other applications like claws-mail.