the show/hide button shows the paragraph and formatting marks in a document.
How do I print a document with these symbols showing?
You can't -- at least, not easily. The proper name for those symbols
is "nonprinting characters"
(
http://www.word.mvps.org/FAQs/Formatting/NonPrintChars.htm),
precisely because they don't print.
If you need to put a sample on paper, you'll have to go through the
exercise of replacing the nonprinting characters with the printing
characters that have the same appearance (as far as the computer is
concerned, they're different characters, represented by different code
numbers). For example, replace·space·characters·with·a·middle·dot
(ASCII code 183). You can't really replace paragraph marks -- that
would eliminate the ends of the paragraphs -- but you can insert a ¶
character (ASCII code 182) before each paragraph mark. And so on...