Bumping this up since I have a similar situation
very short visit to japan, want to dump some of my bags, arriving T2, leaving from T2
It appears there are lockers in NRT T2
http://www.narita-airport.jp/en/guid...svc_07_t2.html
But my questions are these:
* do these lockers take bills?...I don't expect to have a load of coins quite so soon after my arrival
* I presume you pay up front
Thanks