How do you pipe a vim buffer through lpr?

I want to print the b开发者_Go百科uffer, and I do it this way:

:%!lpr

Which works, but it erases the buffer and I have to restore it with undo u. Is there a better way to print the buffer (or a range of lines in it)?

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:%w !lpr

or, using builtin print command,

:hardcopy