* Nikkei finds support at 9,400 - analyst * Sharp up more than 2 pct on Qualcomm deal * Paper companies drop on Merrill rating cuts By Ayai Tomisawa TOKYO, Dec 4 (Reuters) - Japan's Nikkei share average edged down on Tuesday, trimming gains from a seven-month closing high in the previous session as weak U.S. economic data triggered profit-taking on exporters. The Nikkei was down 0.3 percent at 9,432.88, moving further away from Monday's peak when it pierced the psychological