In a muddled crossover we could surely live without, Xerox is welcoming other brands (and in some cases, the brand icons, including Mr. Clean and the Target bull’s-eye dog) into its advertising. One TV spot is below; see two more, and some print work, after the jump . Brandweek says the Y&R campaign is “meant to show how Xerox enables each of these businesses to succeed , illustrated by the various tasks each of the brand mascots...