What type of document are your printing?
Most printers will do that once in a while, usually due to either misfed paper or a character for a new page somewhere in the document, which may not be visible in normal use.
Check that the printer settings match the type of paper you're using. Many will handle card stock differently than plain paper because of the different thicknesses of the paper. One printer I have, for example, will not print on plain paper if it's set for photo paper. The printer is "smart" enough to recognize the difference and will just spit out plain paper without printing anything.